Introduction to…Caledus
SlimWELL® an evolutionary well construction system
DEA(e) 3Q06 Meeting Milan
Paul Howlett, MD/CEO, Caledus Limited
CHALLENGING CONVENTIONIN WELL CONSTRUCTION
TECHNOLOGY
Introduction to…
CHALLENGING CONVENTIONIN WELL CONSTRUCTION
TECHNOLOGY
Established January 2004 with 4 staff, more than 40 today (30 months on)
Traditional oil and gas service sector business, already award winning
In-house design engineering, ISO9000 accredited
In-house manufacturing, ISO9000 accredited
In-house sales, service and operations
Office’s in Calgary Canada, Perth Australia
Several agents establishedBecoming
widely known as a company
that can be relied upon….
• RotoTEC Friction Reducer® Drill Pipe Deployed Friction Reducer / Casing Wear Protector
Caledus “TD Solutions”Technology
• FloMASTER™ DP and CS cementing u-tube control tools
• Drifting DartCATCHER™ and Safe SingleDRIFTER™ Efficient, safe drill pipe drifting in and out of the well
• SlimWELL® Evolutionary Well Construction System
• BridgeBUSTER® Enhanced CasinglLiner Reaming Shoes
• SwivelMASTER™ Downhole drill pipe swivel for ERD sand screen deployment
• SingleRUN™ Motor Sacrificial Down Hole Mud Motor
• DriveSHOE™ Closed –end conductor drive shoes
• Comprehensive range of casing/liner centralisers (Brunel Ezee-Glider® 2000)
Visit www.caledus.com or email [email protected] or call +44(0)1224 659000 for more information on any of these product lines
Trading in other product lines helps us invest in SlimWELL® and grow capability
• Innovar Wireline Fishing Magnets, high strength, highly effective fishing magnets
• LinerHANGER™ Systems High specification standard liner hanger technology
SlimWELL® is an evolutionary well construction systembased on a “bottom-up” design of close-clearance, flush-jointed casing liners.
Slims down the well profile, gives optimum or maximised pipe size across the zone of interest.
Significant reduction in full well construction costs
SlimWELL® is based on API casing sizes and special sizes as applicable.
Economic, safety and environmental benefits.
Reduces the telescoping effect in wells compared to conventional construction.
Delivers cased and cemented well integrity
SlimWELL® is NOT slim-hole drilling and does NOT rely on expandable technology.
What is SlimWELL®?
A JIP in the late nineties, early ideas, IP developed, prototype work done, but NOT commercialised
SlimWELL® lay dormant for lack of commercialisation funds, and more industry focus on expandable technology
SlimWELL® patents applied for now granted for method and apparatus protection
Caledus obtained exploitation rights to SlimWELL® in 2003, provided funding for development and commercialisation starting in Q1 2004
SlimWELL® History…
What can SlimWELL® be used for?
Now In-fill drilling/Brownfield development from existing donor wells (utilising 1-2 cemented SlimWELL® liners, one could be slotted/pre-perforated liner or sand control screen installation) This could be TTD depending on tubing size
LaterFull development well construction of all types i.e. deepwater, ERD, HPHTLower cost finder/exploration wellsLower cost appraisal wellsRemote location wellsDouble-skin casing wells?
Existing SlimWELL® sizes could be used in full well construction now at the lower reaches
Economic benefit of full well construction…
Total CasingMass (Tons) Cement
(Tons) Total Cuttings( Tons)
SlimWELL™0.00
500.00
1000.00
1500.00
2000.00
2500.00
3000.00
3500.00
Tons
Mass removed/used
SlimWELL®
Conventional
SlimWELL® (3 liners plus) can reduce the cost of full well construction by more than 50%, largely due to the savings on materials not consumed or produced during the construction
Potential for multiple wells from a single slot (Splitter Wellheads)
Completely new wells could be constructed within an old upper well structure
Source: JIP members and confirmation during investment diligence by third party well engineering consultancy
Economic benefit of partial well construction…
SlimWELL® can increase the size of the pipe at TD from a sidetrack or in-fill drilling opportunity, standard sidetrack or TTD…
Increasing the available flow area, increases BOPD or allows higher injectivity
Increasing early production has significant impact on Net Present Value(NPV)
Larger diameter pipe across zone of interest allows larger perforating guns to be utilised – Increased production potential
262%3.958”12.64.1/2”2.441”6.42.7/8”
111%3.548”9.54”2.441”6.42.7/8”
65%5.08”19.75.3/4”3.958”12.64.1/2”
52%4.892”175.1/2”3.958”12.64.1/2”
% increase in ID flow area
IDPPFNominal Pipe OD
Replaced by
IDPPFNominal Pipe OD
SlimWELL® Size at TDCommon Conventional Size at TD
Read left to right to see what SlimWELL® delivers in a sidetrack from an existing donor well thru a 7” liner
This chart shows one example of a SlimWELL® casing configuration that allows for 0.225” clearance at the upper part of
the well and 0.125” clearance at the lower part.
What might a SlimWELL® well look like?
Two Main Innovative Technologies
How SlimWELL® Works…
SlimSLIP™ AnchorHANGER™Slips are contained within the Hanger Wall
Incorporates a High-Pressure Packer DiVERTA™ SHOEControllable ‘Dual-Flow’ Paths
eliminate Swab/Surge/ECD concerns
How SlimWELL® Works…
Dedicated joints are deployed with the previous casing for locating, cementing, anchoring and sealing in
The next hole section is drilled and under-reamed sufficiently for access and cementing, 10-20%
Flush jointed casing is used, and in-line casing centralisers
Standard cementing operation are used
No rig modifications are required
Standard well engineering applies
SlimWELL® is evolutionary rather than revolutionary
The DiVERTA™SHOE, stinger/seal-bore, inner string, and AnchorMASTER™ RUNNING TOOL create an artificial inner annulus to allow flow inside the liner and up and out of the top of the liner to eliminate swab/surge whilst running in and moving the pipe in the well
Stinger/seal-bore and inner string
How SlimWELL® Works, running in…
By-pass working
The LoCATOR™TOOL run in the drill-pipe above the liner ensures the system is cemented, anchored and sealed at the correct depth in the DEDICATED JOINT which was deployed with the previous casing
How SlimWELL® Works, locating at TD…
How SlimWELL® Works, converting the shoe…
A ball is circulated down to the DiVERTA™ SHOE to change the direction of flow from the artificial inner annulus to the normal outer annulus, to allow hole cleaning prior to cementing
Pressure is applied to convert the DiVERTA™ SHOE
How SlimWELL® Works, cementing...
A unique upper and lower cementing dart arrangement ensures accurate placement of the cement slurry and provides the barrier to pressure up against at the end of the operation
No cement contacts the liner ID
The whole liner can be rotated during circulating and cementing
How SlimWELL® Works, setting and sealing…
When the lower cementing dart seats in the end of the stinger pressure is applied to set the HANGER and the SEAL in the DEDICATED JOINT
Dart landed in stinger
How SlimWELL® Works, releasing…
Once the HANGER and SEAL is set continued pressuring up releases the running tool and allows the RUNNING TOOL, inner string and stinger to be removed
There is no cement to drill out inside the liner after cementing
Excess cement can be circulated off the liner top once the running tool is released and pulled up
How SlimWELL® Works, animation
Time permitting run SlimWELL®
animation now
The animation runs through the installation of a 5.1/2” x 7” system once the 7” casing/liner has been installed with the dedicated joints and after the hole below has been drilled/enlarged and the system has been made up and is running in on drill pipe
Completed……The 5-1/2 (5-3/4) x 7” SlimWELL® has been developed and testedCaledus ran a full System Test trial at the Aberdeen test well in late December ‘04
Where Are We Now & Where Next?
Completed….
A successful field trial of the 5.1/2” (5.3/4” x 7” system, sponsored by Talisman Energy, took place in Canada during Jan ‘06
The next SlimWELL® size started in Q2 ’05, 4” x 5-1/2”, and is sponsored by BP (North Sea) and will be ready for system testing and field trialling during 2nd half of 2006
Ultimately there will be 6 – 10 sizes (or more?)
Where Are We Now & Where Next?
1 2 3 4 5 6 8 107 9 11 12
1. DISPLACE TOP DART @ 0.5 m3 ( 3 BPM ) 7. BLEED OFF PRESSURE TO ZERO / PICKUP 5 FT INTO RESTRICTED ID TO HANGER SET POSITION. 2. TOP DART CATCHES UP w/ CEMENT AFTER 7m3 / PRESS RISE TO 7500 kPa 8. PRESSURE UP TO 4000 PSI MAX TO SET HANGER. 3. REDUCE PUMP RATE TO 0.16 m3 ( 1 BPM) 9. BLEED OFF TO ZERO AND CONDUCT PUSH – PULL TESTS / NO SET 4. TOP DART LANDS / BALL TRANSFER TO LWR DART & RELEASE / AUTO SHUTDOWN 10. PRESS. UP TO 4400 PSI MAX TO SET HGR / INDICATION @ 4000 PSI 5. RECOMMENCE DISPLACEMENT @ 0.16m3 / GRADUAL PRESSURE INCREASE. 11. BLEED OFF TO ZERO AND CONDUCT PUSH – PULL TESTS / HGR SET 6. LOWER DART BUMPS / ALLOW PRESS. TO INC. TO 500 PSI OVER FINAL CIRC. PRESS. 12. PRESS. UP TO RELEASE RUN TOOL.
22 Jan 06
Canadian Land Rig
By-pass working
Pressure Chart of operations on trial
9.5/8” Donor Casing
7” x 9.5/8” Standard Liner
5.1/2” x 7” SlimWELL® Liner
4” x 5.1/2” SlimWELL® Liner
SlimWELL® InFILL™ 2006/1
This InFILL™ system can be deployed now…
3 casing seats from an 8.1/2” ID obtains 4” pipe at TD….
Caledus now has capability in standard liners…
9.5/8” Donor Casing
7” x 9.5/8” Standard Liner
5.3/4” x 7” SlimWELL® Liner
4.1/2” x 5.3/4” SlimWELL® Liner
SlimWELL® InFILL™ 2006/2
This InFILL™ system can be deployed soon…
3 casing seats from an 8.1/2” ID obtains 4.1/2” pipe at TD….
Caledus now has capability in standard liners…
Full well construction will become available in time, but several more sizes are required, bigger than the existing two sizes…..
For more information go to www.caledus.com
or email [email protected]
or call +44 (0)1224 659000
What can we do later………….