DRILLING PRODUCTS & SERVICES
CONTENTS
INTRODUCTION
About Grant Prideco Drilling Products & Services ........................................................ivVision and Values, Ethics ...........................................................................................vQuality, Health, Safety and Environment (QHS&E) .......................................................vi API Certifications ISO CertificationsInspection Procedures and Traceability .....................................................................viiLocations .............................................................................................................. viiiDisclaimer and Trademarks ........................................................................................x
DRILL PIPE
Drill Pipe Design and Manufacturing ....................................................................... 1-2Grant Prideco Proprietary Drill Pipe Grades ..............................................................1-9 Grant Prideco High-Strength Grades Grant Prideco Sour Service GradesGrant Prideco eXtreme® Reach (XR™) Drill Pipe ....................................................... 1-12
ROTARY-SHOULDERED CONNECTIONS
Rotary-Shouldered Connection Selection Guide ........................................................ 2-2TurboTorque™ (TT™) and TurboTorque-M™ (TT-M™) Connections .................................2-5eXtreme® Torque (XT®) and eXtreme® Torque-M™ (XT-M™) Connections ..................... 2-14Grant Prideco Double Shoulder™ (GPDS™) Connections ............................................ 2-19HI-TORQUE® (HT™) Connections .............................................................................. 2-21Drill Collar (DC™) Connections ............................................................................... 2-24SST® and SRT® Connections ................................................................................... 2-27API and Public Domain Connections ....................................................................... 2-28Grant Prideco Benchmark ..................................................................................... 2-36Xmark™ Benchmark ............................................................................................. 2-37Care and Handling of Grant Prideco Drill Pipe ......................................................... 2-38
HARDBANDING
Platinum® HB Hardbanding ..................................................................................... 3-2SmoothX™ Hardbanding .........................................................................................3-4SmoothEdge® Tool Joints ........................................................................................3-5
About NOV Grant Prideco ..........................................................................V
www.GrantPrideco.com
CUSTOM-ENGINEERED PRODUCTS (CEP)
CEP Capabilities ..................................................................................................... 4-1Slip-Proof® Drill Pipe ..............................................................................................4-3Landing Strings .................................................................................................... 4-4Completion Drill Pipe .............................................................................................4-5Intervention Risers ............................................................................................... 4-6
HEAV YWEIGHT DRILL PIPE (HWDP)
Standard HWDP .....................................................................................................5-2Tri-Spiral™ HWDP ...................................................................................................5-4Spiral-Wate® HWDP ............................................................................................... 5-6HWDP Features and Options ....................................................................................5-8HWDP Grades .........................................................................................................5-9
DRILL COLLARS & DRILL STEM ACCESSORIES
Slick Drill Collars .................................................................................................... 6-1Spiral Drill Collars .................................................................................................. 6-1Pony Collars ..........................................................................................................6-2Slip and Elevator Recesses ......................................................................................6-3Material Grades .................................................................................................... 6-4Pup Joints .............................................................................................................6-9Subs ................................................................................................................... 6-10Rotary Kellys ....................................................................................................... 6-12Thread Protectors ................................................................................................ 6-13Lift Subs and Lift Plugs ......................................................................................... 6-13Features and Options ........................................................................................... 6-14Care and Maintenance .......................................................................................... 6-16
THE INTELLISERV® NETWORK
The IntelliServ Network Components ....................................................................... 7-2Features and Benefits ............................................................................................7-4
SERVICE & SUPPORT
Technical Support ..................................................................................................8-2Field Support ........................................................................................................8-3Internal Plastic Coating ......................................................................................... 8-4Tool Joint Break-In Services (Make and Break) ......................................................... 8-4Licensed Repair and Accessory Network ...................................................................8-5Training and Seminars .......................................................................................... 8-6
CONTENTS
THTHE E INTELLLLISERV® NETWORK
The e InntetelliServv Network Components ................................... ........................... .................... 7-2Featturu eses aandn Benenefits ..................................................... ......... ...............................................7-4
ABOUT GRANT PRIDECO DRILLING PRODUCTS & SERVICES
Grant Prideco Drilling Products & Services is the world’s largest supplier of drill pipe and drill stem accessories. The division manufactures, sells and services a full range of proprietary and American Petroleum Institute (API) drill pipe, drill
collars, heavyweight drill pipe, kellys, subs, pup joints and other
drill stem accessories. Product quality and performance are
optimized by Grant Prideco’s unique vertical integration from mill
to market, which helps to mitigate the potentially adverse effects
of tight steel mill supplies and the associated rising costs of
production and raw materials.
Grant Prideco’s IntelliServ® Network, the industry’s first high-
speed, real-time drill string telemetry system is a breakthrough
technology that transforms the drill string into an advanced
information tool to enable instantaneous bi-directional
communication from the rig floor to the drill bit. With The
IntelliServ Network, engineers and geologists have access to critical
information at speeds up to one million bits per second. Commands
from the surface or between downhole devices can be sent,
received and acted upon in real time to radically improve monitor-
ing and measurement of all vital data during downhole operations.
From the top-drive to the bit sub, whether manufacturing products
to efficiently drill the simplest well, products for drilling in the
harshest environments or that enable the drilling of world record
wells, Grant Prideco Drilling Products & Services is the single source
for all drill stem needs. Through innovative products, worldwide
operations, expert engineering and design resources, sophisticated
laboratories and a global repair network, Grant Prideco meets the
demands of any tough drilling challenge.
iiv
ABOUT NOV GRANT PRIDECO
OV Grant Prideco is the world’s N
0
2
4
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8
20072001 2002 2003 2004 2005 2006
TRIR LTIR
8.4
4.14.7
3.1
4.2
2.5
1.5
0.6
2.0
1.0
2.7
1.2
3.0
1.4
2008
1.4
0.5
0
2
4
6
20072001 2002 2003 2004 2005 2006
TRIR LTIR
6.4
4.2
5.0
2.2
3.5
1.5 1.4
0.5
2008
1.3
0.4
1.9
0.8
2.1
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2.3
0.7
Quality, Health, Safety and Environment (QHS&E) Policy The long-term business success of Grant Prideco depends on the
Company’s ability to continuously improve products and services,
while protecting its people and the environments in which they
work and live. This commitment is in the best interest of our
employees and stockholders.
QHS&E is the responsibility of all
employees, with the active commit- ment and support of
management. Grant Prideco will facilitate this policy through the
QHS&E Management System with the following objectives:
services that consistently meet the needs and expectations
of our customers
contractors
live by pollution prevention, waste minimization, wise use of
natural resources and continual improvement
public on the safe and environmentally responsible use of our
products and services
Grant Prideco is committed to the proactive integration of QHS&E
objectives into management systems at all levels. The commit-
ments in this policy are in addition to a basic obligation to comply
with Grant Prideco standards, as well as all applicable laws and
regulations where the Company operates. Compliance with this
pledge is critical in order to reduce risks and add value to Grant
Prideco’s products and services.
ABOUT GRANT PRIDECO DRILLING PRODUCTS & SERVICES
GRANT PRIDECO GLOBAL INCIDENT TRENDYTD – February 2008
DRILLING PRODUCTS & SERVICESINCIDENT TREND
YTD – February 2008
T R I R R e d u c t i o n - 8 0 %LT I R R e d u c t i o n - 9 0 %
T R I R R e d u c t i o n - 8 3 %LT I R R e d u c t i o n - 8 8 %
vi
Grant Prideco is committed to safety from the board room to the shop floor. While increasing production over 11% in 2007, Grant Prideco Drilling Products and Services reduced total recordable incidents by 83% and lost time recordable incidents by 85%.
ABOUT NOV GRANT PRIDECO
www.GrantPrideco.com
API and ISO CertificationsWhere applicable, all Grant Prideco products meet or exceed the
requirements and are manufactured in compliance with the latest
edition of the following API standards:
In addition, where applicable, all Grant Prideco Drilling Products &
Services manufacturing locations comply with the current
requirements of the following:
Quality, Inspection Procedures and TraceabilityQuality is the primary objective in every phase of Grant Prideco’s
operations. The Quality Program is a dynamic one in which
personnel at all levels strive toward customer satisfaction,
continuous improvement and elimination of
non-conformance.
Along with the day-to-day task of ensuring that
standards are met, the Company continually
refines its own internal standards. Manufactur-
ing engineers are devoted to improving Grant
Prideco’s process capabilities through:
The resulting efficiency and economy mean optimum product
performance and cost savings to customers.
Additionally, Grant Prideco licenses repair facilities located
throughout the world. To ensure that the highest possible perfor-
mance and quality are maintained, a full-time audit department
continuously communicates with licensees and provides support
and manufacturing technology.
Rigid Inspection Procedures
of its products at each critical phase of the procurement and
manufacturing process. Internal specifications that meet or exceed
applicable API standards assure compliance of all products. All
inspection results are recorded, maintained and made available
for customer review.
Traceability
All product material and process traceability are maintained from
receipt of mill-certified raw material to
completion of manufacturing. Products
are assigned serial numbers, and
inspection and traceability records are
made available for customer review.
7-02475D-00515CT-0403
omply with the curre
vii
ABOUT GRANT PRIDECO DRILLING PRODUCTS & SERVICESABOUT NOV GRANT PRIDECO
LOCATIONS
Grant Prideco, Inc
U.S.A.P H O N E : 2 8 1- 8 7 8 - 8 0 0 0T O L L F R E E : 8 6 6 - 47 2 - 6 8 61
Sales OfficesU . S . A .Grant PridecoDrilling Products & Services, and The IntelliServ® Network
C A N A D AGrant Prideco Canada
C H I N A Grant Prideco (Jiangsu) Drilling
Golden TowerChaoyang District
E-mail: [email protected]
E U R O P E A N D A F R I C A Grant PridecoSuite C
Aberdeen, Scotland
Email: [email protected]
F A R E A S T, A S I A - PA C I F I C , I N D I A
E-mail: [email protected]
M E X I C OGrant Prideco de Mexico, SA de CV
Col. Anzures
GrantPrideco.com
M I D D L E E A S TGrant PridecoDubai Airport Free Zone
DubaiUnited Arab Emirates
R U S S I A , F S UGrant Prideco
Email: [email protected]
Manufacturing FacilitiesU . S . A .
The IntelliServ Network
www.IntelliServ.netEmail: [email protected]
viii
A S T, A S I A - PA C I F I C ,
Orideco de Mexico, SA de CV
zures
ideco.com
L E E A S Tridecoirport Free Zone
Arab Emirates
Manufacturing FacilitiesU . S . A .
4
4
4
NOV Grant Prideco
NOV Grant PridecoDrilling Products & Services400 N. Sam Houston Parkway E.Suite 900Houston, TX 77060U.S.A.Phone: 281-878-8000Fax: 281-878-5736Toll Free: 866-472-6861
www.GrantPrideco.com
M A N U F A C T U R I N G L O C AT I O N S
S A L E S A N D S E R V I C E L O C AT I O N S
A U S T R I AVoest Alpine Tubulars GmbH. & Co KGAlpinestrasse
Kindberg-Aumuhl Austria
C H I N A Grant Prideco (Jiangsu) Drilling
Zhangmu Town, Jiangyan CityJiangsu Province
Email: [email protected]; [email protected]
Grant Prideco Tianjin
District TianjinTianjin
I N D O N E S I A
Kabil Industrial Estate
I TA LY
ix
M E X I C OGrant Prideco De Mexico, S.A. de C.V.
Mexico-Veracruz Cd.
Pagliai Veracruz
Mexico
LOCATIONS
M A N U F A C T U R I N G L O C AT I O N S
S A L E S A N D S E R V I C E L O C AT I O N S
A U S T R I AVoest Alpine Tubulars GmbH. & Co KGAlpinestrasse
C H I N A Grant Prideco (Jiangsu) Drilling
Zhangmu Town, Jiangyan City
I N D O N E S I A
Kabil Industrial Estate
M E X I C OGrant Prideco De Mexico, S.A. de C.V.
Mexico-Veracruz Cd.
†While every effort has been made to insure the accuracy of the tables herein, this material is presented as a reference guide only. The technical information contained herein should not be construed as a recommendation. Grant Prideco cannot assume responsibility for the results obtained through the use of this material. No expressed or implied warranty is intended.
Grant Prideco is the world leader in drill stem and drill pipe technology, manufacturing, sales and service; a global leader in drill bit
technology and manufacturing, specialized downhole tools and related applications and services; and a leading provider of large-bore,
engineered connectors. The Company provides a variety of product and service solutions to onshore and offshore markets worldwide.
Find out more about Grant Prideco’s global activities at www.GrantPrideco.com.
Grant Prideco Drilling Products & Services Trademarks
x
Grant Prideco (full logo) ®
Grant Prideco®
Grant Prideco Double
®
HT®
IntelliPipe®
IntelliServ®
Platinum®
Slip-Proof®
SmoothEdge®
Spiral-Wate®
SST®
Tuff-Weld®
TuffWeld®
Other Trademarks
API (logo) ® is a trademark of the American Petroleum Institute.DNV (logo) ® is a trademark of Det Norske Veritas.
NanoSteel is a trademark of the NanoSteel Company.
Teflon® is a trademark of DuPont.Truscope® is a trademark of Tuboscope.Weco® is a trademark of FMC Technologies.
DISCLAIMER AND TRADEMARKS
DRILL PIPE
DRILL PIPE
DRIL
L PI
PE DRILL PIPE
1-1www.GrantPrideco.com
Grant Prideco provides the industry with the three most important considerations for drill pipe: quality, technology and economy. Manufacturing processes are vertically integrated from raw material to finished product. Pipe is supplied
by the Company’s own mill and tool joints are forged in its own
facilities.
Drilling Products & Services also offers all the features of a fully
integrated service company. Beyond full technical and field support
for its products, Grant Prideco provides an array of other services,
including training and seminars, tool joint break-in prior to delivery
and a worldwide repair and accessory manufacturing network.
DRILL PIPE
1-2
DRILL PIPE
Drill Pipe Design and ManufacturingDesignDrill pipe life is extended by creating a design that is inherently
fatigue resistant. When drill pipe rotates in a bent condition,
alternating tensile and compressive stresses can cause fatigue
cracks that may ultimately result in drill pipe “washouts” and
failure. Stresses tend to concentrate in areas where geometries
change rapidly. The shorter or more irregular the transition, the
higher the stress concentration. Alternately, the longer and
smoother the transition, the lower the stress.
The thick weldneck, required for adequate weld strength and the short internal upset of a standard industry design concentrates stress in the adjacent pipe body.
The weldneck/upset design incorporates a counterbored weldneck, an extended internal upset length, a shallow internal taper angle and generous radii to produce the optimum stress-reducing geometry.
Grant Prideco Weldneck / Upset Design
PipeBody
Tool Joint
Weldneck
Upset
Internal Upset Taper
WeldLine
Tool Joint ID
WeldneckWall
Thickness
Internal Upset Taper Angle
Counter-bored
Weldneck
Tool Joint
Weldneck
Upset
Pipe Body
Pipe BodyWall
Thickness
Internal Upset Taper
WeldLine
Tool Joint ID & Weldneck/
Upset Are The Same
WeldneckWall
Thickness
Internal Upset Taper Angle
Generic Weldneck / Upset Design
Pipe BodyWall
Thickness
1-3www.GrantPrideco.com
Tool Joint OD Recut Tool Joint Torque Shoulder
Tool Joint IDRecut Tool Joint Pin Critical Section
New Tool Joint Pin Critical Section
DRILL PIPE
GeometryThe critical section of a joint of drill pipe is the transition from the
pipe body to the tool joint. This section consists of the weld that
joins the pipe and tool joint, and the transition from the thin
cross-section of the pipe to the thick cross-section of the tool joint.
The challenge to the drill pipe designer is to ensure that the weld is
stronger than the pipe body and the transition between the pipe
body and the tool joint is as seamless as possible.
Grant Prideco’s weldneck/upset design was engineered to
maximize fatigue resistance in this critical transition. A geometry
that minimizes stress concentrations is employed. The assembly is
configured to optimize the transition from the cross-section of the
pipe to the tool joint. The length of the internal upset is extended,
producing a shallow fade-away angle that blends into the pipe
body’s inside diameter with a liberal radius. To further improve
fatigue resistance, the surface finish of the assembly adjacent to
the weld line is improved by grinding on both the inside and
outside diameter.
The enhanced hardenability of Grant Prideco’s specially engineered tool joint steel produces more uniform microstructure and mechanical properties throughout the entire cross-section in comparison with standard 4137H steel.
The increased hardenability of Grant Prideco’s proprietary tool joint material provides more consistent mechanical properties through the tool joint sections, such as the critical section at the last engaged thread, especially on recut joints.
SAE/AISI4137H
Grant PridecoTool Joint Material
4 8 12 16 24 32
60
55
50
45
40
35
30
Distance From Quenched End (1/16 in)
Hard
ness
(HRC
)
New Tool Joint Torque Shoulder
HARDENABILITY CURVE TOOL JOINT MATERIAL
Proprietary Steel Grant Prideco incorporates specially designed proprietary steel for
both the drill pipe tube and the tool joint. Tube and billets are
produced by Grant Prideco mills in Austria and China or obtained
from qualified suppliers, and thoroughly inspected upon receipt to
verify that all material requirements are met. By closely matching
the chemistries of the tube and tool joint materials, Grant Prideco
ensures good weld compatibility and weld strength. Stringent
cleanliness requirements for both materials enhance fracture
toughness. The increased hardenability of the materials consis-
tently produces more uniform mechanical properties throughout
the entire cross-section, commanding adequate strength in the
weld zone and the critical sections of the connection. The result is
a more reliable product. For both API drill pipe and high-perfor-
mance, severe-environment products, Grant Prideco engineers
materials that increase product performance and integrity.
1-4
DRILL PIPE
Cut intoBillets
Preheat Forge Into ToolJoint Blank
Cut tolength
Bar orTubing
Tool JointBlank
QualityInspection
Finishing &Threading 5-step
PhosphateCoating
FinishedTool Joints
QualityInspection
QualityInspection
LaboratoryInspection
Inspection PointOptionalTool Joint
Break In
OptionalHardbanding
Legend
Round Cornered Square
Austenitizingwith Integrated
Oil Quench
TemperingFurnaceBlanking & Boring
Grant Prideco Drill Pipe Manufacturing Process
1-5www.GrantPrideco.com
DRILL PIPE
Green Tube
Induction HeatingUpsettingthe Pipe
Deburringand Facing
AustenitizingFurnace
TemperingFurnaceH2O External Quench
QualityCheck
Straightening Turn & Bore
Pipe Tube Readyto Weld
Tool Joint & Tube JoinedWith Inertia or Friction
Welder
Machining &Cleaning theWeld Zone
Austenitizingby Induction
Heating
W eld ZoneInspection
et Magnetic
Temperingby Induction
Heating
QuenchingInternal/External
Stress Relieve
Inspection includingEnd Area
Completed Drill Pipe
TUFF WELD ® PROCESS
Full Length Pipe
1-6
DRILL PIPE
Tube ProcessingGrant Prideco drill pipe is manufactured with state-of-the-art
production equipment. Tube ends are forged on modern Ajax
upsetters featuring programmable heating systems, which
optimize forging efficiency. The computer-controlled pipe handling
system operates cleanly and quietly to transfer tubes quickly and
without damage. Grant Prideco’s modern austenitizing and
tempering furnaces provide a controlled quench-and-temper heat
treatment process for tubes. Tensile and impact properties are then
verified through rigorous testing.
Tool Joint ProcessingGrant Prideco’s computer-controlled, automated forge line
efficiently produces tool joints while reducing risk to employees.
Forged tool joints are precision contoured on modern machining
centers, then batch heat-treated by a controlled atmosphere
quench-and-temper process. API or Grant Prideco proprietary
rotary-shouldered connections are threaded onto the tool joint
using Computer Numerically Controlled (CNC) machine tools.
Tube ends are forged on a modern Ajax upsetter.
Computer controlled pipe handling system quickly transfers tube quietly and without damage.
1-7www.GrantPrideco.com
DRILL PIPE
WeldingA friction or inertia weld process joins tubes and tool joints. Both
processes are highly reliable and cost-effective, and produce
consistent and uniform weld zone properties. In terms of weld
quality, reliability, strength or metallurgical effects, both processes
produce a high-integrity, solid-state weld connection between the
tool joint and the drill pipe tube. The principles of both welding
processes are based on the rotation of one surface against another
at a relatively high speed and under heavy pressure. The friction
between the tool joint surface and the tube surface causes the
contact to heat up below the melting temperature at which they
are forged together, producing the weld.
Grant Prideco’s latest MTI400VX weld line system is fully auto-
mated and features a computerized process and data system.
Robotic handling and laser control position systems provide
efficient operation and assure precise alignment between the tool
joint and tube. Subsequently, the weld’s heat-affected zone (HAZ)
receives the patented Tuff-Weld® process.
Tuff-Weld is a post-weld quenched and tempered heat treatment
of the heat-affected zone. The weld zone is heated by induction
to the specified austenitizing temperature, which is followed by
quenching from precisely positioned fluid nozzles. To ensure that
complete tempering is obtained, an area wider than the HAZ is
reheated to the proper tempering temperature by the induction
coil. A full 100% of welds that undergo the Tuff-Weld process are
subjected to hardness testing. The benefits of the Tuff-Weld
process are shown to the right by comparing the two weld zone
photomicrographs.
This photomicrograph depicts a typical normalized and tempered weld zone. The weld line is clearly evident by the contrasting microstructures of the tool joint and the tube upset. The microstructure of the higher carbon tool joint contains predominantly ferrite and pearlite, while the upset is often pearlite and has lower transitional constituents.
This photomicrograph depicts the typical microstructure of a Tuff-Weld® weld zone. The similar microstructures of the tool joint and the tube upset make the weld line difficult to detect. Both display tempered martensitic microstructures. The result is yield strengths and Charpy impact values superior to those of normalized microstructures. The Tuff-Weld process consistently produces stronger, tougher and more uniform weld zone properties. This combination of strength and toughness enhances fatigue resistance, making the Tuff-Weld process the most desired post-weld heat treatment in the industry. More than 50% of the drill pipe in the world is produced using the Tuff-Weld process.
1-8
DRILL PIPE
Automatic customized inline lathes simultaneously remove the
internal and external ram’s horns. Programmable sanding units
provide a surface finish that is free of stress risers. State-of-the-art
electromagnetic and ultrasonic inspections ensure that weld
inclusions and defects are not present.
Completed drill pipe assemblies undergo an intense inspection
process including a magnetic particle end area inspection, a
full-length Truscope® analysis, high-speed full-body ultrasonic and
electromagnetic inspection for longitudinal and transverse defects
and minimum wall thickness verification.
Induction heating and pressurized fluid quench are used in the patented Tuff-Weld® post-weld heat-treating process. The resulting quenched and tempered microstructure maximizes weld area properties.
TraceabilityDrill pipe assemblies are produced by welding pin and box tool
joints to an upset and heat-treated drill pipe tube. Material and
process traceability are maintained for each of the three compo-
nents. Mill material certifications for tool joints are confirmed by
incoming testing and each tool joint blank is given a unique heat
code. This code is traceable through the manufacturing process.
A Grant Prideco number is similarly used to provide traceability for
the drill pipe tube. The number is die-stamped for permanent
identification.
The MTI400VX weld line system is fully automated and features a computerized process, robotic control and laser positioning system.
1-9www.GrantPrideco.com
DRILL PIPE
eXtreme® Drilling V-150™ Grade Drill PipeV-150 is a proprietary drill pipe grade offered by Grant Prideco for
applications that require ultra-high strength material. V-150
incorporates proprietary chemistry and a rigidly controlled
quench-and-temper heat treatment. The increased yield strength
provides superior torsional and tensile strength and enhanced
internal and collapse pressure integrity.
TSS™ Tough Sour Service 95 and 105 Grade Drill Pipe TSS™-95 and TSS™-105 drill pipe are proprietary grades offered
by Grant Prideco for service in H2S environments. With a unique
chemistry and a specialized quenched and tempered heat treat-
ment, TSS-95 and TSS-105 have optimum fracture toughness,
controlled yield strength and restricted hardness. The tubes are
NACE Method A tested to a threshold stress of 85% and 70%
respectively of the Specified Minimum Yield Strength (SMYS).
TSS-95 and TSS-105 have API tool joints and are best suited for
environments having lower H2S concentrations. Because its
minimum fracture toughness is 100 ft-lbs, TSS-95 drill pipe is ideal
for more demanding drilling applications, such as those with high
bending loads and corrosive environments.
Grant Prideco Proprietary Drill Pipe GradesIn addition to all API grades, Grant Prideco produces drill pipe in
several proprietary grades including high-toughness, high-strength
and sour-service grades designed for the most challenging
applications in the most severe environments.
S-135T™ Enhanced Toughness 135 Grade Drill Pipe S-135T™ drill pipe is a proprietary grade offered by Grant Prideco
for applications that require high strength and high toughness.
S-135T drill pipe incorporates a proprietary chemistry and a rigidly
controlled quenched and tempered heat treatment. The minimum
average specified Charpy impact energy is 59 ft-lbs for a 3/4 size
specimen at -4ºF, a 48% increase in impact energy over the
standard API S-135 grade. The performance behavior resulting from
this increase in toughness provides a margin of safety superior to
normal high-strength materials.
eXtreme® Drilling Z-140™ Grade Drill PipeZ-140™ is a proprietary drill pipe grade offered by Grant Prideco,
which is designed specifically for extreme drilling conditions
present in high temperature high pressure (HTHP) environments,
extended reach drilling (ERD), deepwater and ultra-deep wells.
Through proprietary steel chemistry and a rigidly controlled
quench-and-temper process, Z-140 drill pipe provides an excep-
tional balance between elevated strength and low-temperature
high-toughness requirements. Compared to standard API S-135
grade drill pipe, Grant Prideco’s Z-140 drill pipe grade provides a
higher minimum yield strength, a smaller window between
allowable minimum and maximum yield strength values and
increased toughness requirements to perform under the most
demanding cyclic loading operations.
The 5 inch 19.50 lb V-150™ drill pipe provides an 11% increase over S-135 in comparison to all standard API S-135 drill pipe in both tensile and torsional strength.
S-135 V -150™ %Improvement
Torsional Strength (ft-lbs) 74,100 82,300 11
Tensile Strength (lbs) 712,100 791,200 11
EXAMPLE: 5 IN 19.50 LB S-135 VS. V-150™
1-10
DRILL PIPE
eXtreme® Drilling CYX™ Grade Sour Service Drill PipeGrant Prideco’s three standard proprietary sour service grades are
suitable for most situations. However, customized sour service pipe
can be produced to meet specific customer requirements including
any combination of tube and tool joint yield strength and NACE
testing.
The following naming methodology is used for proper
identification of CYX.
CYX™ 000X-111Y where:
Examples of popular CYX combinations are included in the
accompanying grade table.
SS Grade Sour Service Drill Pipe SS-95 and SS-105 are sour service drill pipe grades of high yield
strength, which meet the requirements of Canada’s IRP specifica-
tion for service in H2S environments. SS drill pipe features a unique
chemical composition and a controlled quench-and-temper heat
treatment that produces optimum fracture toughness, controlled
yield strength and restricted hardness for both tubes and tool
joints. SS tubes are NACE Method A tested to a threshold stress of
85% of the SMYS, and tool joints are NACE Method A tested to a
threshold stress of 65% of the SMYS .
eXtreme® Drilling XD® Grade Sour Service Drill Pipe XD®-95 and XD®-105 are proprietary sour service drill pipe grades of
high yield strength offered by Grant Prideco for service in H2S
environments. XD drill pipe features a unique chemical composition
and a controlled quench-and-temper heat treatment that produces
optimum fracture toughness, controlled yield strength and
restricted hardness for both tubes and tool joints. XD tubes are
NACE Method A tested to a threshold stress of 70% of the SMYS.
XD drill pipe is resistant to sulfide stress cracking and offers
optimum resistance to fatigue-induced crack initiation and crack
propagation.
eXtreme® Drilling CXD™ Grade Sour Service Drill PipeCXD™-95 and CXD™-105 are identical to XD including material and
heat-treat process. For situations requiring quicker delivery, NACE
testing is omitted.
NACE Method A test apparatus
1-11www.GrantPrideco.com
DRILL PIPE
Grade Use
Yield Strength Tensile Strength Elongation Hardness Charpy NACETool JointMin
(psi)Max(psi)
Min(psi)
Max(psi) (%) (HRC)
Temp(ºF) Size
Min Avg(ft-lb)
Single(ft-lb) Req'd
% SMYS
Tube
E-75 General purpose 75,000 105,000 100,000 na API na room full 40 35 no na API
X-95 General purpose 95,000 125,000 105,000 na API na room full 40 35 no na API
G-105 General purpose 105,000 135,000 115,000 na API na room full 40 35 no na API
S-135 General purpose 135,000 165,000 145,000 na API na room full 40 35 no na API
TSS™-95 Sour service 95,000 110,000 105,000 na API 26 max room full 40 35 yes 85 API
TSS™-105 Sour service 105,000 120,000 115,000 na API 30 max room full 40 35 yes 85 API
XD®-95 Sour service 95,000 110,000 105,000 na API 26 max room full 40 35 yes 70 XD
XD®-105 Sour service 105,000 120,000 115,000 na API 30 max room full 40 35 yes 70 XD
CXD™-95 Sour service 95,000 110,000 105,000 na API 26 max room full 40 35 no na XD
CXD™-105 Sour service 105,000 120,000 115,000 na API 30 max room full 40 35 no na XD
CYX™-95 Sour service 95,000 110,000 105,000 na API 26 max room full 40 35 per order 70 CYX
CYX™-105 Sour service 105,000 120,000 115,000 na API 30 max room full 40 35 per order 70 CYX
SS-95 IRP 95,000 110,000 105,000 130,000 17 min 25 max room 3/4 59 59 yes 85 SS
SS-105 IRP 105,000 120,000 115,000 140,000 17 min 28 max room 3/4 59 59 yes 85 SS
S-135T™ High toughness 135,000 165,000 145,000 na API na -4 3/4 59 48 no na API
S-135 NS-1 135,000 165,000 145,000 na API na room full 59 na no na API
Z-140™ High strength 140,000 160,000 150,000 na API na -4 3/4 59 48 no na API
V-150™ High strength 150,000 165,000 160,000 na API na room full 50 na no na API
Tool Joint
API API 120,000 na 140,000 na API na room full 40 35 no na na
XD® Sour service 105,000 115,000 115,000 na API 30 max room full 40 35 no na na
CYX-XX-105 Sour service 105,000 115,000 115,000 na API 30 max room full 40 35 per order 65 na
CYX-XX-110 Sour service 110,000 125,000 125,000 na API na room full 40 35 per order 65 na
CYX-XX-115 Sour service 115,000 na API na room full 40 35 per order 65 na
CYX-XX-120 Sour service 120,000 na API na room full 40 35 per order 65 na
SS IRP 110,000 125,000 125,000 145,000 15 min 30 max room full 66 66 yes 65 na
Weld
Tuff-Weld® General purpose 110,000 na na na na 20-36 room full 13 11 na na na
Tuff-Weld® Sour service 110,000 na na na na 20-36 room full 20 20 na na na
Tuff-Weld® NS-1 110,000 na na na na 20-36 -4 full 31 24 na na na
DRILL PIPE GRADE TABLE†
NOTES: † Please refer to page x of the Introduction.
full 50 40
1-12
DRILL PIPE
5-7/8 inch eXtreme® Reach (XR™) Drill Pipe XR™ drill pipe was developed with a 5-7/8 inch diameter for
extended reach drilling (ERD) and ultra-deep wells. This intermedi-
ate size is ideal for hydraulic performance, high strength and ease
of handling, and represents a logical intermediary drill pipe size
between standard 5-1/2 inch and 6-5/8 inch drill pipe. Grant
Prideco offers 5-7/8 inch XR drill pipe in all standard API material
grades and proprietary grades including high toughness, high
strength and sour service grades. Tool joints can be configured to
accompany any rotary-shouldered connection.
Operational Advantages of 5-7/8 inch XR™ Drill Pipe 5-7/8 inch drill pipe provides
enhanced hydraulic performance compared to 5-1/2 inch drill
pipe for ERD and ultra-deep well applications.
5-7/8 inch drill pipe utilizes
a 7 inch OD TurboTorque ™ or XT® tool joint, allowing it to be
used to drill inside 9-5/8 inch casing and 8-1/2 inch open-hole
sections. Overshot fishing capability in an 8-1/2 inch hole is
maintained.
XR eliminates the need for 6-5/8 inch drill pipe,
which is difficult to handle and can sacrifice rig space and
setback capacity because it cannot be used to drill 8-1/2 inch
hole sections.
5-7/8 inch drill pipe minimizes rig
modifications in comparison to 6-5/8 inch drill pipe.
PRESSURE LOSS COMPARISON12.25 INCH HOLE WITH 12.0 LB/GAL MUD DENSITY
250
200
150
100
50
0Pr
essu
re Lo
ss pe
r 1,0
00 ft
(psi)
Flow Rate (gal/min)
5-1/2 in 21.90 lb with 7.00 in x 4.00 in Tool Joints
5-7/8 in 23.40 lb with 7.00 in x 4.25 in Tool Joints
500 600 700 800 900 1,000 1,100 1,200
Pressure loss shown includes both pipe and annulus flow.
ROTARY-SHOULDEREDCONNECTIONS
ROTARY-SHOULDEREDCONNECTIONS
ROTA
RY-S
HOUL
DERE
DCO
NNEC
TION
S
ROTARY-SHOULDERED
CONNECTIONS
2-1www.GrantPrideco.com
ROTARY-SHOULDERED CONNECTIONS
For more than 25 years, Grant Prideco has been the leader in the development of rotary-shouldered connections. A long-standing workhorse of the industry, the HI-TORQUE® (HT™) connection provides approximately 40% more torque than
comparable API connections.
With an improved thread form and a flatter taper, Grant Prideco’s
second generation eXtreme® Torque (XT®) connection meets the
needs of deep, extended reach and HTHP wells, providing even
more torque, a reduced profile and improved hydraulics. eXtreme
Torque (XT®) connections often allow the use of a larger pipe size
for a given hole size while maintaining fishability.
The eXtreme® Torque Metal Seal (XT-M™) connection is the
industry’s first pressure-rated, gas tight rotary-shouldered
connection. eXtreme® Torque XT-F™ and XT-MF™ offer XT and
XT-M performance with a special fatigue-resistant thread form
for the most severe drilling applications.
Released in 2002, the Grant Prideco Double Shoulder® (GPDS™)
connection provides nearly the torque of the HI-TORQUE connection
with the convenience of interchangeability with the comparable
API connection.
Grant Prideco’s third generation TurboTorque™ (TT™) connection
was introduced in 2006. TurboTorque features a double start thread
form, reduced connection profile and multiple design configura-
tions to meet specific drilling requirements. The results are
optimized torque capacity and hydraulics, improved clearance and
fishability, extended life and reduced risk of failure.
Grant Prideco’s latest development is the gas-tight, pressure-
rated TurboTorque-M™ (TT-M™), featuring all of the benefits of
TurboTorque connections, with the added advantage of an
advanced metal-to-metal seal.
2-2
How to Select Rotary-Shouldered Connections
ROTARY-SHOULDERED CONNECTIONS
Selection of a rotary-shouldered connection is determined by torque capacity and
profile requirements. There is a trade-off between these requirements. As you
progress from left to right and bottom to top, Grant Prideco connections provide
greater torque with a slimmer profile.
Slim
mer
Profi
le, Im
prov
ed H
ydra
ulics
, Eas
ier Fi
shing
, Lar
ger I
D
HT™ Connection
Increasing Cos
t
Increase in Torque Capacity
Connection
connections
2-2
2-3www.GrantPrideco.com
ROTARY-SHOULDERED CONNECTIONS
XT®Connection
XT-M™Connection
2-3http://www.GrantPrideco.com
TT™Connection
TT-M™ Connection
Increasing Per
formance
2-4
0.000
1.000
2.000
3.000
4.000
5.000
6.000
7.000
8.000
9.000
Connection
Tool
Join
t OD
and I
D
6-5/
8 FH
8.50
0 x 4.
250
GPDS
™65 8
.500
x 4.
250
HT™
65 8.
500 x
4.25
0
XT®6
9 8.5
00 x
5.25
0
TT™6
90 8
.500
x 4.
250
0
20,000
40,000
60,000
80,000
100,000
Connection
Mak
e-up
Torq
ue (f
t-lb)
NC46
- 6.2
50 x
2.75
0
GDPS
™46 -
6.25
0 x 2.
750
HT™4
6 - 6.
250 x
2.75
0
XT®4
6 - 6.
250 x
2.75
0
TT™5
00 - 6
.250
x 2.
750
5-1/
2 FH
7.25
0 x 3.
500
GPDS
™55 7
.250
x 3.
500
HT™5
5 7.2
50 x
3.50
0
XT®5
7 7.0
00 x
3.50
0
TT™5
85 7.
000 x
3.50
0
NC38
- 4.8
75 x
2.56
3
GPDS
™38 4
.875
x 2.
563
HT™3
8 4.8
75 x
2.56
3
XT®3
9 - 4.
875 x
2.56
3
TT™3
90 4.
875 x
2.56
3
120,000
140,000
6-5/
8 FH
GPDS
™65
HT™
65
XT®6
9
TT™6
90
NC46
GDPS
™46
HT™4
6
XT®4
6
TT™5
00
5-1/
2 FH
GPDS
™55
HT™5
5
XT®5
7
TT™5
8
NC38
GPDS
™38
HT™3
8
XT®3
9
TT™3
90
TOOL JOINT PROFILE COMPARISON†
ROTARY-SHOULDERED CONNECTIONS
HT™
XT®
TT™
TOOL JOINT TORQUE COMPARISON†
The difference in tool
HT™
XT®
TT™
2-5www.GrantPrideco.com
ROTARY-SHOULDERED CONNECTIONS
Rotary-Shouldered ConnectionLeading the industry, Grant Prideco has further refined the
development and optimization of rotary-shouldered connection
design with the TurboTorque™ connection. TurboTorque is the
industry’s first rotary-shouldered connection that is composed of
four distinct configurations, optimized to best meet the specific
and differing needs of each individual pipe size (see chart on next
page).
The patented TurboTorque connection is the industry’s highest
performance connection available in sizes for 2-3/8 inch through
6-5/8 inch drill pipe and provides the following benefits:
Double-Start Thread TurboTorque™ connections are the industry’s first rotary-
shouldered connections to offer a double-start thread form. Dual
threads, 180 degrees apart, reduce the number of turns from stab
to makeup by 50%, saving significant rig time. The resulting
increase in thread lead angle provides an increased torque capacity
of 12%.
2-6
ROTARY-SHOULDERED CONNECTIONS
Stronger Tool Joints Standard drill pipe tool joints are made of steel with Specified
Minimum Yield Strength (SMYS) of 120,000 psi (120 ksi SMYS).
Historically, efforts to increase the
tool joint yield strength have resulted
in reduced fracture toughness and
increased susceptibility to fatigue
crack propagation. TurboTorque
connections are engineered specifi-
cally for use with 130 ksi SMYS tool
joints, meeting the increased fracture
toughness required by API and
proprietary manufacturing standards
such as NS-1™, DS-1™ and NORSOK. In
addition, the TurboTorque thread
form and tool joint geometry have
been engineered to provide industry-
leading fatigue performance. The result is a rotary-shouldered
connection with increased torque capacity, reduced connection
profile, greater fishability and increased hydraulic performance.
of steel with Specified
000 psi (120 ksi SMYS).
1 2 3 4
2 3/8 to 2 7/8 in Increased tensile capacity Increased torque capacity Optimized hydraulics Speed of makeup
3 1/2 to 4 1/2 in Increased torque capacity Speed of makeup Optimized hydraulics
5 to 5 7/8 in Speed of makeup Optimized hydraulics Increased torque capacity
6 5/8 in Speed of makeup Reduced make-up torque Optimized hydraulics
2-7www.GrantPrideco.com
Increased Torque Capacity TurboTorque connections provide more torque capacity than any
other double-shouldered connection in the industry today, and the
“torque on demand” feature provides an additional 8% of torque
capacity for those unusual drilling situations.
Three make-up torque (MUT) values are provided for each
TurboTorque connection:
Minimum torque is the least amount of MUT acceptable to ensure
that the connection will function properly. Minimum MUT is
normally only considered in cases when the recommended MUT
may exceed capacity of the rig equipment, such as large diameter,
high-strength drill strings or landing strings.
Recommended MUT is used for normal drilling operations. In most
situations, it provides enough torque to prevent downhole makeup
while minimizing connection stress.
TurboTorque connections are the first in the industry to provide a
Turbo-MUT. Also known as “torque-on-demand”, Turbo-MUT
provides an additional 8% of torque capacity for those unusual
drilling situations when additional torque is required. Most of the
testing and design validation for the TurboTorque family were
conducted on connections made up to the Turbo-MUT value.
Extensive testing allows the Turbo-MUT to be used confidently
without having to consult Grant Prideco.
Thread start 1
Thread start 2
ROTARY-SHOULDERED CONNECTIONS
6-5/
8 FH
- 8.5
00 x
4.25
0
XT69
- 8.5
00 x
5.25
0
0
20,000
40,000
60,000
80,000
100,000
12,100
22,20025,500 26,900
42,100
50,50043,500
56,60062,100
65,500
100,300
82,100
Connection
Mak
e-up
Torq
ue (f
t-lb)
NC46
- 6.2
50 x
2.75
0
XT46
- 6.2
50 x
3.25
0
5-1/
2 FH
- 7.2
50 x
3.50
0
XT57
- 7.0
00 x
4.25
0
NC38
- 4.8
75 x
2.56
3
XT39
- 4.8
75 x
2.56
3
63,100(min.)
TT69
0 - 8.
250 x
5.50
0
TT58
5 - 7.
000 x
4.50
0
TT50
0 - 6.
250 x
3.50
0
TT39
0 4.8
75 x
2.68
8
120,000
MAKE-UP TORQUE COMPARISON†
2-8
ROTARY-SHOULDERED CONNECTIONS
Optimized Connection Taper Taper is the controlling factor in the final configuration of a
rotary-shouldered connection. The TurboTorque taper is engineered
to ensure a balance between the pin and box, maximizing
connection stiffness and fatigue resistance. The taper is designed
to deliver maximum tradeoff between tensile strength, torque
capacity and connection profile. The result is a balanced pin and
box, reduced connection profile, connection stiffness and fatigue
resistance, greater fishability, increased hydraulic performance and
optimum balance between all performance parameters.
Optimized Hydraulic PerformanceThe refinement of the TurboTorque design and 130 ksi SMYS tool
joints mean the tool joint ID can be increased for diminished
pressure loss through the drill string. In comparison to Grant
Prideco’s XT® connection, tool joint ID can often be increased
1/8 of an inch or more. For a given hole size, TurboTorque’s slim
outside diameter often permits the use of a larger pipe size, which
significantly increases hydraulic performance. More hydraulic
horsepower at the bit saves operational cost and enables drilling
of deeper wells.
2-9www.GrantPrideco.com
High–Performance Thread FormTurboTorque’s thread height is optimized for each of the four design
configurations. The thread form incorporates a unique dual-root
radius, larger than the root radii of API and even XT® connections,
significantly reducing the connection peak stress.
Save Time, Cut CostsA TurboTorque connection requires the same running procedures
as the XT connection. However, TurboTorque’s double-start thread,
faster taper and deeper stabbing greatly reduces the turns to
makeup. The resulting time saved has a marked effect on rig
economics. Compared to competitive premium rotary-shouldered
connections, TurboTorque connections often pay for themselves on
the first well, then continue to provide operational savings.
THREAD FORM COMPARISONS
API NC V-0.038R
API FH V-0.050
XT®(0.042” root radius)
XT®
(0.052” x 0.060” dual root radius)
(0.065” x 0.065” dual-root radius)
ROTARY-SHOULDERED CONNECTIONS
2-10
ROTARY-SHOULDERED CONNECTIONS
Enabling Technology – Drill Deeper, Faster, FurtherThe TurboTorque connection’s torque capacity exceeds that of all
double-shouldered connections on the market. Its slim profile
decreases pressure loss through the tool joint and often allows the
use of a larger pipe size. The result: more mechanical and hydraulic
horsepower at the bit, enabling completion of world class wells.
Reduced Total Cost of OwnershipHigh-strength and high-toughness tool joints and a unique
dual-radius thread form have pushed the fatigue resistance of
TurboTorque connections far beyond previous industry limits. In
addition, TurboTorque connections combined with superior Grant
Prideco technology including engineered materials, quenched
and tempered weld zones, fatigue-resistance upset/weld-neck
geometry, quality processing and Platinum® hardbanding, are
proven to extend life, increase reliability and reduce total cost
of ownership.
100,000 1,000,000
Cycles to Failure, NIn
crea
sing
Ben
ding
Mom
ent
4-7/8” x 2-9/16” NC38 4-7/8” x 2-11/16” TurboTorque™ 390
200,000 300,000 400,000
100,000 1,000,000
Cycles to Failure, N
Incr
easi
ng B
endi
ng M
omen
t
7-1/4” x 3-1/2” 5-1/2 FH 7” x 4-1/2” TurboTorque™ 585
200,000 300,000 400,000
FATIGUE PERFORMANCE†TURBOTORQUE™ 390 AND API NC38
FATIGUE PERFORMANCE†TURBOTORQUE™ 585 AND API 5-1/2 FH
2-11www.GrantPrideco.com
TURBOTORQUE™ CONNECTION MECHANICAL CHARACTERISTICS†
Grade Tensile Connection
Tool Tool
in in in in
Standard 3.500 13.30 S-135 381,900 TurboTorque 380 4.750 2.688 14.42 16,800 20,200 21,900
Standard 3.500 15.50 S-135 451,100 TurboTorque 380 4.813 2.500 16.88 19,900 23,900 25,900
Streamline 4.000 14.00 S-135 403,500 TurboTorque 390 4.875 2.688 5.063 15.44 19,600 23,500 25,500
Standard 4.000 14.00 S-135 403,500 TurboTorque 420 5.250 2.938 15.79 23,700 28,400 30,800
Standard 4.000 15.70 S-135 456,900 TurboTorque 420 5.250 2.938 17.36 23,700 28,400 30,800
Streamline 4.500 16.60 S-135 468,300 TurboTorque 435 5.375 3.125 5.563 17.96 24,700 29,600 32,100
Standard 4.500 16.60 S-135 468,300 TurboTorque 485 6.000 3.563 18.50 31,500 37,800 40,900
Standard 4.500 20.00 S-135 581,200 TurboTorque 485 6.125 3.250 22.72 39,700 47,600 51,600
Streamline 5.000 19.50 S-135 560,800 TurboTorque 500 6.250 3.500 6.438 22.29 38,900 46,600 50,500
Standard 5.000 19.50 S-135 560,800 TurboTorque 525 6.500 3.875 22.11 38,200 45,800 49,600
Standard 5.000 25.60 S-135 746,400 TurboTorque 525 6.625 3.563 28.51 48,000 57,600 62,400
Streamline 5.500 21.90 S-135 620,600 TurboTorque 550 6.625 4.250 6.813 23.71 39,100 46,900 50,900
Standard 5.500 21.90 S-135 620,600 TurboTorque 585 7.000 4.500 24.08 47,800 57,300 62,100
Standard 5.500 24.70 S-135 704,300 TurboTorque 585 7.125 4.313 27.33 55,500 66,600 72,200
Streamline 5.875 23.40 S-135 666,500 TurboTorque 585 7.000 4.500 7.188 25.78 47,800 57,300 62,100
Streamline 5.875 26.30 S-135 757,100 TurboTorque 585 7.000 4.500 7.188 28.37 47,800 57,300 62,100
Standard 6.625 27.70 S-135 760,400 TurboTorque 690 8.250 5.500 30.15 63,100 75,800 82,100
ROTARY-SHOULDERED CONNECTIONS
2-12
ConnectionGrant Prideco’s latest rotary-shouldered connection is the result of
an ongoing two year comprehensive design, test and qualification
effort. The TurboTorque-M™ connection incorporates a radial,
metal-to-metal, internal pressure seal, providing all of the benefits
of the industry’s highest performing TurboTorque™ connection with
the added security of a gas-tight pressure sealing capability.
The internal metal seal is generated by radial interference, reducing
the effects of tensile load. Capable of resisting high-pressure liquids
and gas, the seal integrity is not affected by multiple trips.
All sizes of the TurboTorque-M connections are pressure rated at
20,000 psi internal and 10,000 psi external. ISO13679 testing
methodologies for casing and tubing were modified to validate
the connection’s pressure capability under harsh, aggressive,
dynamic loads.
TurboTorque-M drill strings can be used for drill stem testing
operations, high-pressure workover and completion operations,
and underbalanced drilling operations. The TurboTorque-M drill
string eliminates the need for a separate work string, which
ultimately saves time, money, rig space and deck load.
ROTARY-SHOULDERED CONNECTIONS
Radial Metal-to-Metal Seal
Connection
Radial Metal-to-Metal Seal
2-13www.GrantPrideco.com
ROTARY-SHOULDERED CONNECTIONS
In addition to providing a 20,000 psi internal and 10,000 psi
external pressure rating, TurboTorque-M™ connections provide
increased mechanical and hydraulic performance compared to
eXtreme® Torque-M™ (XT-M™) connections, while also providing
fatigue performance greater than standard API connections. In
comparison with XT-M, TurboTorque-M provides a 1/4 inch larger
ID for increased hydraulics, 8% additional working torque capacity
and 5,000 ft/lbs of additional rated internal working pressure
(see table).
TurboTorque-M connections are not interchangeable with any
other rotary-shouldered connection, including TurboTorque™
connections.
Connection
XT-M57 7.000 4.500 51,600
TurboTorque-M 585 7.000 4.250 55,903
MAKE-UP TORQUE COMPARISON†
4.250
4.500
2-14
Rotary-Shouldered Connection The patented eXtreme® Torque (XT®) connection addresses the
requirements of many extreme drilling applications, including
extended reach drilling (ERD), horizontal drilling, deepwater, high
temperature high pressure (HTHP) and ultra-deep wells.
High-Performance DesignThe eXtreme Torque connection is a patented, high-performance,
rotary-shouldered connection available in sizes from 2-3/8 inch
through 6-5/8 inch drill pipe. The eXtreme Torque connection
incorporates a second generation double-shouldered design. A
secondary internal torque shoulder on the nose of the pin offers an
additional friction surface and mechanical stop. The primary
external shoulder still serves as the connection’s sealing surface.
The eXtreme Torque connection design has an extended pin base,
pin nose and box counterbore. These sections are carefully
engineered to provide additional elastic deformation during
makeup, ensuring that the contact forces are properly proportioned
between the two shoulder surfaces.
Increased Torque CapacityThe XT connection offers significantly higher torsional capacity
than standard API connections, as well as Grant Prideco’s GPDS™
and HI-TORQUE™ connections. This additional capacity provides the
required torque for the most extreme drilling applications.
ROTARY-SHOULDERED CONNECTIONS
2-15www.GrantPrideco.com
ROTARY-SHOULDERED CONNECTIONS
Slim ProfileThe XT® connection’s increased torsional strength allows for the
use of a streamlined tool joint that is sized for the pipe’s torsional
strength. XT connections can be configured with a smaller OD and
larger ID compared to standard API connections without sacrificing
torsional capacity. Often, XT connections permit the use of a larger
diameter drill pipe, providing improved hydraulic efficiency, better
hole cleaning and greater buckling strength for horizontal and
extended reach applications without sacrificing torsional strength
or fishability.
True Flush Inside DiameterThere is no gap or change in the inside diameter from the box to
the pin, creating a smoother flow with less turbulence. This feature
also eliminates the recess found in standard connections where
cement and solids can be trapped.
Rugged DurabilityThe robust XT connection design incorporates more steel in the
critical areas of the connection resulting in less refacing and fewer
recuts. In addition, because of the increased torsional capacity, the
XT connection greatly extends the life of the joint by tolerating
more OD wear.
Field RepairableThe XT connection can be refaced in an inspection yard or at the rig
site with a portable refacing tool. This flexibility can save time and
expenses by eliminating transportation and handling costs.
User FriendlyXT connections utilize the same running procedures as standard
API connections. The connection spins up freely until shouldered,
then is bucked up to the make-up torque. XT connections have a
more shallow taper, requiring a more shallow stab and slightly
more turns to makeup.
2-16
XT® CONNECTION MECHANICAL CHARACTERISTICS†
ROTARY-SHOULDERED CONNECTIONS
Grade Tensile Connection
Standard 3.500 13.30 S-135 381,900 XT38 4.750 2.563 14.59 11,500 18,800
Standard 3.500 15.50 S-135 451,100 XT38 4.750 2.438 14.76 12,300 20,500
Standard 4.000 14.00 S-135 403,500 XT39 4.875 2.688 5.250 15.54 12,400 21,200
Standard 4.000 15.70 S-135 456,900 XT39 5.000 2.563 5.313 17.54 14,700 24,500
Standard 4.500 16.60 S-135 468,300 XT46 6.250 3.250 19.74 26,000 42,100
Standard 4.500 20.00 S-135 581,200 XT46 6.250 3.250 23.03 26,000 42,100
Standard 5.000 19.50 S-135 560,800 XT50 6.500 3.750 22.39 28,000 46,200
Standard 5.000 25.60 S-135 746,400 XT50 6.625 3.500 28.64 32,600 54,400
Standard 5.500 21.90 S-135 620,600 XT54 6.625 4.000 24.30 29,000 49,900
Standard 5.500 24.70 S-135 704,300 XT54 6.625 4.000 6.813 26.73 29,000 49,900
Standard 5.875 23.40 S-135 666,500 XT57 7.000 4.250 26.41 33,800 56,600
Standard 5.875 26.40 S-135 757,100 XT57 7.000 4.250 29.00 33,800 56,600
Standard 6.625 25.20 S-135 697,400 XT69 8.500 5.250 29.98 59,400 100,300
Standard 6.625 27.70 S-135 760,400 XT69 8.500 5.250 31.98 59,400 100,300
2-17www.GrantPrideco.com
Rotary-Shouldered Connection The patented XT-M™ connection is the industry’s first gas-tight,
pressure-rated rotary-shouldered connection. An eXtreme™ Torque
connection with a radial metal-to-metal internal pressure seal,
XT-M provides torsional strength comparable to XT® connections
combined with a gas-tight pressure sealing capability.
The gas-tight seal is generated by radial interference, reducing the
effects of tensile load. Capable of resisting high-pressure liquids
and gas, the seal integrity is not affected by multiple trips.
All sizes of the XT-M connections are pressure rated at 15,000 psi
internal and 10,000 psi external.
XT-M drill strings can be used for drill stem testing (DST) opera-
tions, high-pressure workover and completion operations, and
underbalanced drilling operations. An XT-M drill string eliminates
the need for a separate work string, which saves time, money and
rig space.
XT-M connections are not interchangeable with any other rotary-
shouldered connection, including XT connections.
ROTARY-SHOULDERED CONNECTIONS
Seal Connection
Radial Metal-to-Metal Seal
2-18
XT-M™ CONNECTION MECHANICAL CHARACTERISTICS†
ROTARY-SHOULDERED CONNECTIONS
Grade Tensile Connection
Standard 3.500 13.30 S-135 381,900 XT-M 38 4.750 2.563 14.59 13,900 16,700
Standard 3.500 15.50 S-135 451,100 XT-M 38 4.750 2.438 16.84 15,400 18,400
Standard 4.000 14.00 S-135 403,500 XT-M 39 4.875 2.688 5.250 15.54 15,700 18,900
Standard 4.000 15.70 S-135 456,900 XT-M 39 5.000 2.563 5.313 17.54 18,600 22,300
Standard 4.500 16.60 S-135 468,300 XT-M46 6.250 3.250 19.74 32,200 38,700
Standard 4.500 20.00 S-135 581,200 XT-M46 6.250 3.250 23.03 32,200 38,700
Standard 5.000 19.50 S-135 560,800 XT-M50 6.625 3.750 22.72 35,200 42,200
Standard 5.000 25.60 S-135 746,400 XT-M50 6.625 3.500 28.64 41,900 50,300
Standard 5.500 21.90 S-135 620,600 XT-M54 6.625 4.000 24.30 37,800 45,400
Standard 5.500 24.70 S-135 704,300 XT-M54 6.625 4.000 6.813 26.73 37,800 45,400
Standard 5.875 23.40 S-135 666,500 XT-M57 7.000 4.250 26.41 43,000 51,600
Standard 5.875 26.30 S-135 757,100 XT-M57 7.000 4.250 29.00 43,000 51,600
Standard 6.625 25.20 S-135 697,400 XT-M69 8.500 5.250 29.98 77,400 92,900
Standard 6.625 27.70 S-135 760,400 XT-M69 8.500 5.250 31.79 77,400 92,900
2-19www.GrantPrideco.com
The Grant Prideco Double Shoulder™ (GPDS™) connection is a
high-performance, rotary-shouldered connection available for
2-3/8 inch through 6-5/8 inch drill pipe. GPDS connections offer
a versatile alternative to standard API connections where higher
torsional strength is required and are interchangeable with API
connections.
Increased Torsional CapacityThe double-shouldered design of GPDS provides increased torsional
capacity when compared with similar sizes of API connections.
A secondary internal shoulder on the nose of the pin offers an
additional friction surface and mechanical stop. The primary
external shoulder still serves as the connection’s sealing surface.
Slimmer ProfileGPDS connections can be configured with a smaller OD and larger
ID compared to standard API connections, improving fishability and
hydraulic efficiency without sacrificing available connection
torsional capacity.
True Flush IDThe GPDS double-shouldered design provides a true flush inside
diameter throughout the mated tool joint assembly, thereby
minimizing turbulent flow, improving ID tool passage and
eliminating opportunities for cement and solids to be trapped.
Increased Allowable Tool Joint WearGPDS connections offer higher torsional capacity than standard
API connections of the same dimensions, thereby increasing
permissible connection wear prior to downgrading the assembly
ROTARY-SHOULDERED CONNECTIONS
2-20
ROTARY-SHOULDERED CONNECTIONS
to Class 2. For example, an NC50 on 5 inch 19.50 lb S-135 drill pipe
is downgraded to Class 2 when the OD wears below 6-5/16 inches.
At this diameter, the tool joint is less than 80% as strong as
Premium Class pipe. The GPDS50 connection can tolerate wear
down to a diameter of 5-3/4 inch before its torsional strength falls
below 80% of the pipe strength.
InterchangeabilityGPDS connections are fully interchangeable with corresponding
API FH or NC counterparts as shown below: 0.25
0.50
0.75
1.00
1.25
1.50
0.00
3/16"5/16"
9/16"
7/8"
1-1/4"
3 1/2 in 13.30 lbs S-135(5 in x 2 1/8 in)
5 1/2 in 21.90 lbs S-135(7 1/2 in x 3 in)
5 in 19.50 lbs S-135(6 5/8 in x 2 3/4 in)
GPDS
38 (+
167%
)
GPDS
50 (+
180%
)
GPDS
55 (+
122%
)
NC 38
NC 50
5 1/2
FH
Cum
ulat
ive W
ear (
in)
1/2"
Tool Joint Dimensions (in)
TOOL JOINT WEAR ALLOWANCE†(NEW TO MINIMUM PREMIUM CLASS)
GPDS™ CONNECTION MECHANICAL CHARACTERISTICS†
Grade Tensile Connection
in in in
Standard 3.500 13.30 S-135 381,900 GPDS 38 4.875 2.563 14.82 12,100 15,400
Standard 3.500 15.50 S-135 451,100 GPDS 38 5.000 2.438 17.32 13,300 17,500
Standard 4.000 14.00 S-135 456,900 GPDS 40 5.250 2.688 16.18 15,400 19,600
Standard 4.000 15.70 S-135 456,900 GPDS 40 5.250 2.688 17.75 15,400 19,600
Standard 4.500 16.60 S-135 468,300 GPDS 46 6.000 3.000 19.58 23,500 31,800
Standard 4.500 20.00 S-135 581,200 GPDS 46 6.250 2.500 24.31 29,700 42,500
Standard 5.000 19.50 S-135 560,800 GPDS 50 6.500 3.250 23.42 30,800 43,100
Standard 5.000 25.60 S-135 746,400 GPDS 50 6.625 3.000 29.56 34,600 49,700
Standard 5.500 21.90 S-135 620,600 GPDS 55 7.000 4.000 25.32 33,500 43,800
Standard 5.500 24.70 S-135 704,300 GPDS 55 7.000 4.000 27.74 33,500 43,800
Standard 5.875 23.40 S-135 666,500 GPDS 55 7.000 4.000 27.02 33,500 43,800
Standard 5.875 26.30 S-135 704,300 GPDS 55 7.000 4.000 29.58 33,500 43,800
Standard 6.625 27.70 S-135 760,400 GPDS 65 8.000 4.875 31.21 47,800 63,600
GPDS26 NC26
GPDS31 NC31
GPDS38 NC38
GPDS40 NC40
GPDS46 NC46
GPDS50 NC50
GPDS55 5 1/2 FH
GPDS65 6 5/8 FH
INTERCHANGEABILITY TABLE
2-21www.GrantPrideco.com
ROTARY-SHOULDERED CONNECTIONS
®Rotary-Shouldered ConnectionThe HI-TORQUE® connection is a patented, high-performance,
rotary-shouldered connection available in sizes for 2-3/8 inch
through 6-5/8 inch drill pipe.
Increased Torsional CapacityThe HI-TORQUE connection’s double-shouldered design provides
increased torsional capacity as compared to similar sized API
connections. A secondary internal shoulder on the nose of the pin
offers an additional friction surface and mechanical stop. The
primary external shoulder still serves as the connection’s sealing
surface. HI-TORQUE connections are designed with an extended pin
base, pin nose and box counterbore. These sections are carefully
engineered to provide additional elastic deformation during
makeup. This process ensures that the contact forces are properly
proportioned between the two shoulder surfaces.
® Connection with ™
2-22
TORSIONAL YIELD STRENGTH†HI-TORQUE® CONNECTION VS. CONVENTIONAL TOOL JOINT
0
20
40
60
80
100
Torsi
onal
Capa
city (
1,00
0 ft-l
bs)
4 7/8 x 2 9/16 6 5/8 x 3 7 x 4Tool Joint Dimensions (in)
29,500
20,200
57,800 55,900
82,600
77,800
HT38
+46
%
NC50
NC38
HT50
+43
%
HT55
+39
%
51/2
in F
H
ROTARY-SHOULDERED CONNECTIONS
Slimmer ProfileHI-TORQUE® connections can be configured with a smaller OD and
larger ID compared to standard API connections, improving
fishability and hydraulic efficiency without sacrificing available
connection torsional capacity. The accompanying figure illustrates
the smaller OD and larger ID for HI-TORQUE connections compared
to standard API connections with identical torsional capacity.
NC38 AND HT™38 CONNECTIONSWITH 2-9/16 INCH ID
WEAR ALLOWANCE COMPARISON†
True Flush IDThe HI-TORQUE double-shoulder design provides a true flush inside
diameter throughout the mated tool joint assembly, thereby
minimizing turbulent flow, improving ID tool passage and
eliminating opportunities for cement and solids to be trapped.
Increased Allowable Tool Joint WearHI-TORQUE connections offer higher torsional capacity than
standard API connections of the same dimensions, thereby
increasing permissible connection wear prior to downgrading
the assembly to Class 2. The accompanying chart illustrates
the additional wear allowance provided by HT38 as compared
with NC38.
InterchangeabilityHI-TORQUE connections are not interchangeable with API or
other types of rotary-shouldered connections.
10
15
20
25
30
4.8134.875 4.750 4.688 4.625 4.563 4.500
HT38
NC38
80% Torsional Strength 3 1/2 13.30 G-105 Premium Class Drill Pipe
80% Torsional Strength3 1/2 13.30 S-135 Premium Class Drill Pipe
Torsi
onal
Stre
ngth
(1,0
00 ft
-lbs)
Tool Joint OD (in)
2-23www.GrantPrideco.com
HI-TORQUE® CONNECTION MECHANICAL CHARACTERISTICS†
ROTARY-SHOULDERED CONNECTIONS
Grade Tensile Connection
in in in in
Standard 3.500 13.30 S-135 381,900 HT38 4.750 2.438 14.80 10700 17000
Standard 3.500 13.30 S-135 381,900 HT38 4.875 2.563 14.87 12200 17700
Standard 3.500 13.30 S-135 381,900 HT38 5.000 2.563 15.11 12300 17700
Standard 3.500 15.50 S-135 451,100 HT38 4.875 2.563 16.95 12200 17700
Standard 4.000 14.00 S-135 403,500 HT38 4.938 2.563 15.88 12300 17700
Standard 4.000 14.00 S-135 403,500 HT40 5.250 2.688 16.18 15500 21500
Standard 4.000 15.70 S-135 456,900 HT38 4.875 2.563 5.063 17.23 12200 17700
Standard 4.500 16.60 S-135 468,300 HT46 6.250 3.250 19.59 20500 28500
Standard 4.500 20.00 S-135 581,200 HT46 6.250 3.000 23.34 23900 34600
Standard 5.000 19.50 S-135 560,800 HT50 6.625 3.500 23.10 27200 39700
Standard 5.000 25.60 S-135 746,400 HT50 6.625 3.000 29.40 34900 53300
Standard 5.500 21.90 S-135 620,600 HT55 7.000 3.750 25.89 35900 52600
Standard 5.500 21.90 S-135 620,600 HT55 7.000 4.000 25.16 33600 46300
Standard 5.500 24.70 S-135 704,300 HT55 7.000 3.750 28.14 35900 52600
Standard 5.500 24.70 S-135 704,300 HT55 7.000 4.000 27.59 33600 46300
2-24
Cycles to Failure
Micr
o Stra
in (u
e)
100,000 1,000,000
1,288,717
10,000,000 100,000,000
700
600
500
400
300
200
100
0
On average. DC™58 is at least 9 times more fatigue resistant than 6-5/8 Reg.
12,220,611
6-5/8 Reg Actual6-5/8 Reg AverageDC™58 Connection ActualDC™58 Connection Average
The Grant Prideco Drill Collar (DC™) connection provides a step
change in BHA connection performance. The enhanced connection
is ideally suited for drilling programs plagued with aggressive drill
string dynamics (axial, lateral and torsional vibrations), H2S
environments and wells equipped with The IntelliServ® Network.
A New Paradigm in Fatigue Resistance The DC connection features a unique fatigue
resistant thread form that incorporates a generous
dual thread root radius of 0.060 inch and 0.065
inch. The larger dual-root radius significantly
reduces peak stresses in the thread root and
extends connection fatigue life. The DC connection
pins also include a stress relief feature. Laboratory
test results indicate that the DC58 connection
provides a near full order of magnitude increase in
fatigue performance, at least nine times improved,
compared to API 6-5/8 inch Regular connection.
ROTARY-SHOULDERED CONNECTIONS
CONNECTION S-N COMPARISON†
2-25www.GrantPrideco.com
Improved Make-Up Efficiency Compared to API Regular connections, the DC™ connection stabs
deeper and makes up with fewer turns. DC™58 connections have
three threads per inch and a steeper three-inch-per-foot taper.
Three revolutions are required to make up the DC58 connection,
compared to six revolutions with a 6-5/8 inch API Regular
connection. DC58 field trials verified improved make-up
efficiency and exceptional post-field trial inspection results.
Workable Make-Up Torque For larger sizes, the normally high makeup torque of double-
shouldered connections often tests the limits of rig equipment.
DC connections are designed to have make-up torques similar
to the requirements of the API counterpart connection.
R0.065R0.060
DC58
R0.025
V-.050API Regular
ROTARY-SHOULDERED CONNECTIONS
2-26
IntelliServ® Network Compatible In order to complete a telemetry network from the bit to the
surface, DC™ double-shouldered drill collars provide an ideal
location for the IntelliServ induction coil placement, with each coil
installed in a protective groove in the secondary torque shoulder.
Minimal Recut Loss The steeper taper of the DC connection reduces loss from recutting
the connections. Compared to the API 6-5/8 inch Regular connec-
tion, the DC58 connection saves just over one inch of material after
each pin recut, and just over 1/2 inch after each box recut.
ROTARY-SHOULDERED CONNECTIONS
Connection inch
Thread Root Torsional Tensile Min
in in in
API 6 5/8 in Regular(1) 2 4 0.025 81,120 1,601,955 50,700 6.2 3.169 1.776
DC™58 Connection(2) 3 3 0.060 and 0.065 99,793 1,653,446 62,371 2.8 2.043 1.208
1 -1 -3.4 -1.126
DC CONNECTION MECHANICAL CHARACTERISTICS†
2-27www.GrantPrideco.com
ROTARY-SHOULDERED CONNECTIONS
Resistant Thread ConnectionsThe SST® and SRT® connections are proprietary connections that
provide increased durability and fatigue resistance compared to
a standard API connection.
The SST connection involves a modification to the pin thread
only; the mating box thread remains standard. Completely
interchangeable with the standard API connections, the SST
connection requires no crossovers or special rig handling
procedures. The SST pin incorporates two primary features. First,
the thread form has an enlarged root radius grooved into the
slab flank. Second, the pin thread body is machined on a slightly
flatter taper than that of the box, effectively behaving like a
variable pitch thread.
The SRT connection involves a modification to the box thread
only; the mating pin thread remains standard. Completely
interchangeable with the standard API connections, the SRT
connection requires no crossovers or special rig handling
procedures. The thread form has an enlarged root radius
grooved into the slab flank.
thread root.
Root Radius
Load
Carri
ed by
Pin T
hrea
d (%
)
0
5
10
15
20
25
30
1 10
DISTRIBUTION OF TENSILE LOAD CARRIED BY THREADS†FROM MAKEUP ON NC46 & NC46 SST® THREADS
2-28
Rotary-Shouldered ConnectionsGrant Prideco provides drill pipe with API and public domain rotary-
shouldered connections. Typical connection configurations are
shown on the following tables. Additional configurations can be
provided upon request. Contact Grant Prideco for additional
information.
An interchange chart for API connection designations is followed by
API Drill Pipe Data Tables.
ROTARY-SHOULDERED CONNECTIONS
2-29www.GrantPrideco.com
Style SizeThreads Thread
in in
InternalFlush(1)
(IF)
2 3/8 2.876 4 2 V-0.065(V-0.038 R)2 7/8 Slim Hole
NC 26
2 7/8 3.391 4 2 V-0.065(V-0.038 R)3 1/2 Slim Hole
NC 31
3 1/2 4.016 4 2 V-0.065(V-0.038 R)4 1/2 Slim Hole
NC 38
4 4.834 4 2 V-0.065(V-0.038 R)4 1/2 Extra Hole
NC 46
4 1/2 5.250 4 2 V-0.065(V-0.038 R)
5 Extra HoleNC 50
5 1/2 Double Streamline
Full Hole (FH) 4 4.280 4 2 V-0.065(V-0.038 R)4 1/2 Double Streamline
NC 40
Extra Hole(1)(XH) (EH)
2 7/8 3.327 4 2 V-0.065(V-0.038 R) 3 1/2 Double Streamline
3 1/2 3.812 4 2
V-0.065(V-0.038 R)
4 Slim Hole4 1/2 Slim Hole
4 1/2 4.834 4 2 V-0.065(V-0.038 R)4 Internal Flush
NC 46
5 5.250 4 2 V-0.065(V-0.038 R)
4 1/2 Slim HoleNC 50
5 1/2 Double Streamline
Slim Hole(1)(SH)
2 7/8 2.876 4 2 V-0.065(V-0.038 R)2 3/8 Internal Flush
NC 26
3 1/2 3.391 4 2 V-0.065(V-0.038 R)2 7/8 Internal Flush
NC 31
4 3.812 4 2 V-0.065(V-0.038 R)3 1/2 Extra Hole
4 1/2 External Flush
4 1/2 4.016 4 2 V-0.065(V-0.038 R)3 1/2 Internal Flush
NC 38
Double Streamline
(DSL)
3 1/2 3.327 4 2 V-0.065(V-0.038 R) 2 7/8 Extra Hole
4 1/2 4.280 4 2 V-0.065(V-0.038 R)4 Full Hole
NC 40
5 1/2 5.250 4 2 V-0.065(V-0.038 R)
4 1/2 Internal Flush5 Extra Hole
NC 50
Numbered Connections(2) (NC)
26 2.876 4 2 V-0.038 R 2 3/8 Internal Flush2 7/8 Slim Hole
31 3.391 4 2 V-0.038 R 2 7/8 Internal Flush3 1/2 Slim Hole
38 4.016 4 2 V-0.038 R 3 1/2 Internal Flush4 1/2 Slim Hole
40 4.280 4 2 V-0.038 R 4 Full Hole4 1/2 Double Streamline
46 4.834 4 2 V-0.038 R 4 Internal Flush4 1/2 Extra Hole
50 5.250 4 2 V-0.038 R4 1/2 Internal Flush
5 Extra Hole5 1/2 Double Streamline
External Flush (EF) 4 1/2 3.812 4 2 V-0.065(V-0.038 R)4 Slim Hole
3 1/2 Extra Hole
INTERCHANGE CHART FOR API CONNECTIONS†
ROTARY-SHOULDERED CONNECTIONS
4 1/2 Internal Flush
2-30
Size Grade Torsional Yield Tensile Yield Wall Section Section Modulus Modulus
in in in cu in cu in
2 3/8 6.65
E-75 EU 6,300 138,200 0.280 1.815 1.843 0.867 1.733 15,474 15,599E-75 EU 6,300 138,200 0.280 1.815 1.843 0.867 1.733 15,474 15,599X-95 EU 7,900 175,100 0.280 1.815 1.843 0.867 1.733 19,600 19,759X-95 EU 7,900 175,100 0.280 1.815 1.843 0.867 1.733 19,600 19,759
G-105 EU 8,800 193,500 0.280 1.815 1.843 0.867 1.733 21,663 21,839G-105 EU 8,800 193,500 0.280 1.815 1.843 0.867 1.733 21,663 21,839S-135 EU 11,300 248,800 0.280 1.815 1.843 0.867 1.733 27,853 28,079S-135 EU 11,300 248,800 0.280 1.815 1.843 0.867 1.733 27,853 28,079
2 7/8 6.85
E-75 IU 8,100 135,900 0.217 2.441 1.812 1.121 2.241 9,907 10,467E-75 EU 8,100 135,900 0.217 2.441 1.812 1.121 2.241 9,907 10,467X-95 IU 10,200 172,100 0.217 2.441 1.812 1.121 2.241 12,548 12,940X-95 EU 10,200 172,100 0.217 2.441 1.812 1.121 2.241 12,548 12,940G-105 IU 11,300 190,300 0.217 2.441 1.812 1.121 2.241 13,869 14,020G-105 EU 11,300 190,300 0.217 2.441 1.812 1.121 2.241 13,869 14,020S-135 IU 14,500 244,600 0.217 2.441 1.812 1.121 2.241 17,832 17,034S-135 EU 14,500 244,600 0.217 2.441 1.812 1.121 2.241 17,832 17,034
2 7/8 10.40
E-75 EU 11,600 214,300 0.362 2.151 2.858 1.602 3.204 16,526 16,509E-75 EU 11,600 214,300 0.362 2.151 2.858 1.602 3.204 16,526 16,509E-75 EU 11,600 214,300 0.362 2.151 2.858 1.602 3.204 16,526 16,509X-95 EU 14,600 271,500 0.362 2.151 2.858 1.602 3.204 20,933 20,911X-95 IU 14,600 271,500 0.362 2.151 2.858 1.602 3.204 20,933 20,911X-95 EU 14,600 271,500 0.362 2.151 2.858 1.602 3.204 20,933 20,911
G-105 EU 16,200 300,100 0.362 2.151 2.858 1.602 3.204 23,137 23,112G-105 IU 16,200 300,100 0.362 2.151 2.858 1.602 3.204 23,137 23,112G-105 EU 16,200 300,100 0.362 2.151 2.858 1.602 3.204 23,137 23,112S-135 EU 20,800 385,800 0.362 2.151 2.858 1.602 3.204 29,747 29,716S-135 IU 20,800 385,800 0.362 2.151 2.858 1.602 3.204 29,747 29,716S-135 EU 20,800 385,800 0.362 2.151 2.858 1.602 3.204 29,747 29,716
3 1/2 9.50
E-75 EU 14,100 194,300 0.254 2.992 2.590 1.961 3.923 9,525 10,001E-75 IU 14,100 194,300 0.254 2.992 2.590 1.961 3.923 9,525 10,001E-75 EU 14,100 194,300 0.254 2.992 2.590 1.961 3.923 9,525 10,001X-95 EU 17,900 246,100 0.254 2.992 2.590 1.961 3.923 12,065 12,077X-95 IU 17,900 246,100 0.254 2.992 2.590 1.961 3.923 12,065 12,077X-95 EU 17,900 246,100 0.254 2.992 2.590 1.961 3.923 12,065 12,077
G-105 EU 19,800 272,000 0.254 2.992 2.590 1.961 3.923 13,335 13,055G-105 IU 19,800 272,000 0.254 2.992 2.590 1.961 3.923 13,335 13,055G-105 EU 19,800 272,000 0.254 2.992 2.590 1.961 3.923 13,335 13,055S-135 EU 25,500 349,700 0.254 2.992 2.590 1.961 3.923 17,145 15,748S-135 IU 25,500 349,700 0.254 2.992 2.590 1.961 3.923 17,145 15,748S-135 EU 25,500 349,700 0.254 2.992 2.590 1.961 3.923 17,145 15,748
3 1/2 13.30
E-75 EU 18,600 271,600 0.368 2.764 3.621 2.572 5.144 13,800 14,113E-75 IU 18,600 271,600 0.368 2.764 3.621 2.572 5.144 13,800 14,113E-75 EU 18,600 271,600 0.368 2.764 3.621 2.572 5.144 13,800 14,113X-95 EU 23,500 344,000 0.368 2.764 3.621 2.572 5.144 17,480 17,877X-95 IU 23,500 344,000 0.368 2.764 3.621 2.572 5.144 17,480 17,877X-95 EU 23,500 344,000 0.368 2.764 3.621 2.572 5.144 17,480 17,877
G-105 EU 26,000 380,200 0.368 2.764 3.621 2.572 5.144 19,320 19,758G-105 IU 26,000 380,200 0.368 2.764 3.621 2.572 5.144 19,320 19,758G-105 EU 26,000 380,200 0.368 2.764 3.621 2.572 5.144 19,320 19,758S-135 EU 33,400 488,800 0.368 2.764 3.621 2.572 5.144 24,840 25,404S-135 IU 33,400 488,800 0.368 2.764 3.621 2.572 5.144 24,840 25,404S-135 EU 33,400 488,800 0.368 2.764 3.621 2.572 5.144 24,840 25,404
3 1/2 15.50
E-75 EU 21,100 322,800 0.449 2.602 4.304 2.923 5.847 16,838 16,774X-95 EU 26,700 408,800 0.449 2.602 4.304 2.923 5.847 21,328 21,247
G-105 EU 29,500 451,900 0.449 2.602 4.304 2.923 5.847 23,573 23,484G-105 EU 29,500 451,900 0.449 2.602 4.304 2.923 5.847 23,573 23,484S-135 EU 38,000 581,000 0.449 2.602 4.304 2.923 5.847 30,308 30,194S-135 EU 38,000 581,000 0.449 2.602 4.304 2.923 5.847 30,308 30,194
ROTARY-SHOULDERED CONNECTIONS
DRILL PIPE TABLES†: 2 3/8 in – 3 1/2 in
2-31
ROTARY-SHOULDERED CONNECTIONS
Size Grade Connection Torsional Yield Tensile
Yield Torsional Ratio Tool
in in in in in
2 3/8 6.65
E-75 EU NC26 3 3/8 1 3/4 6,900 313,700 3,900 1.10 9 10E-75 EU 2 3/8 SLH90 3 1/4 1 13/16 6,900 270,200 3,700 1.10 9 10X-95 EU NC26 3 3/8 1 3/4 6,900 313,700 3,900 0.87 9 10X-95 EU 2 3/8 SLH90 3 1/4 1 13/16 6,900 270,200 3,700 0.87 9 10
G-105 EU NC26 3 3/8 1 3/4 6,900 313,700 3,900 0.78 9 10G-105 EU 2 3/8 SLH90 3 1/4 1 13/16 6,900 270,200 3,700 0.78 9 10S-135 EU NC26 3 5/8 1 1/2 9,000 390,300 4,900 0.80 9 10S-135 EU 2 3/8 SLH90 3 1/4 1 11/16 7,700 311,500 4,20