Subtor PCP Down-hole Pump

• Germany

Add: Gewerbegebiet Salzhub 9

D-83737 Irschenberg Germany

Tel: +49 8031 8873 804

Fax: +49 8031 8873 805

Web: www.subtor.com

• Austria

Subtor Austria

Add: Stadtplatz 24/7 A-4840

Vöcklabruck Austria

Tel: +43.7672-21063

更多信息请关注公司微信公众号：德国萨伯特螺杆泵 subtor

• America

Subtor America Inc.,S.A.Panama

Add: Plaza San Francisco, Office

#23, Boquete,Panama

Tel: +58 416 3636 508

• Singapore

Subtor Asia Pacific

Add: Blk 141,Petir Road #05-266

Singapore,670141

Tel: +65.96971488

• China

Weifang Subtor Rotating Precision Machinery Co., Ltd.

Add: East Side of Industry Second Road，Weicheng

Economy Development Zone, Weifang City 261000

Tel: +86 536 5070802 Fax: +86 536 5070760

Email: [email protected]

Web: www.subtor.com.cn

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SUBTORRotating Precision Machinery

High Performance GermanDown hole and Conveying Technology

Subtor PCP Down-hole Pump

Subtor Presentation

Hello, dear guest,

Weifang Subtor Rotating Precision Machinery Co., Ltd. is

an enterprise invested by German Subtor in China. It is

professionally engaged in researching, developing and

manufacturing products related to the application of

Moineau principles.

Subtor Company has manufacturing plants and technology

centers in German and China, and has sales center and

service center in Singapore and Central America.

Our main products include Progressive Cavity Pump, Power

Section, S-PCP Down hole Pump, Stator Core, relevant

components and spare parts.

PS1000 Multifunctional Helicoidal CNC

The rotor, as a core part of the product, its machining

precision will directly affect the quality of product. In

order to guarantee the reliability of the product quality,

we have imported a professional rotor machining center

from Germany. It also has the largest specification and the

highest machining precision in similar equipment in Asia at

present.

The maximum machining length is 10000mm

The max diameter of work piece to be machined is 300mm

Advantage No.1

Advantage No.2

FACTORY IN CHINA

GERMANY TECHNOLOGY

• The technology of production is introduced from

Germany.

• The products are tailor made according requirements of

customers, and the special designs can meet different work

conditions in applications.

•Experienced in applications of Moineau principal

•Our own unique rubber formulations

•Worldwide network of sub suppliers and resources

•Introduce of new technology continuously

•Quality is the most important for us.

•Stay focus on safety performance

•Satisfactory & professional service

• customer‘s profits maximization

More advantages ：

Advantage No.3

Our goals

Quality Assurance

ISO 9001

----Quality Management System Certification

ISO 14001

----Environment Management System Certificate Of Conformity

OHSAS 18001

----Occupational Health & Safety Management System Certificate Of Conformity

To ensure that all production processes are controlled by the strict requirements of the quality management

system, that is why our Product‘s qualities can be guaranteed.

Introduction of PCP Down-hole Pump

Rotor

Stator

Technical characteristics of PCP Down-hole Pump

The PC pump is also named progressive cavity pump.

It consists of stator and rotor, of which the helical

interference forms a series of continuous sealed cavities,

and the medium transmission is then realized through

the rotor rotational movement.

PCP Down-hole Pump is to connect the stator and

rotor respectively to the ends of the oil tube and the

sucker rod, the drive head on ground can drive the rotor

through the sucker rod and the down-hole liquid can

then be lifted to the ground.

•Lower early investment

Compared with electric submersible pump, hydraulic

piston pump and beam-pumping unit, PCP Down-hole

pump’s first investment is smaller.

•Higher efficiency, energy saving and lower maintenance

cost

The load of PCP Down-hole pump is stable during

operation, the mechanical loss is less, and the pump

efficiency can reach 45%-65% and the highest can reach

70%, but that of the plunger-type pumping unit is only

about 30%.

•Compact structure

It is small in volume and the transportation cost is lower;

its surface installation is simple and the area occupied is

small, it is easy in installation and maintenance.

•It is suitable for thickened oil convey

PCP down-hole pump is suitable for conveying

crude oil with the viscosity under 8000mPa.s, therefore,

most heavy oil well can use this pump.

•It is suitable for oil wells with high sand content

Because of the good yield ability of the stator rubber, it

can be applied in high sand content oil wells.

•It is suitable for high gas content oil wells

The gas locking PCP down-hole pump cannot occur, thus

it is suitable for oil-gas mixing conveyance, but the free

gas at the entry of the PCP down-hole pump can affect

its volume efficiency.

•It is suitable for cluster well group and horizontal well of

offshore oil fields

This pump can be lowered down to the deviated well

section, and the equipment is simple in structure,

small area occupied, less cost in transportation and

maintenance, therefore, it is suitable for offshore oil

production.

Working principle of PC pump

Prime structures of Subtor PCP Down-hole pump units

S-PCP Down-hole Pump

Surface drive device is the main ground equipment of

PCP down-hole pump units, it is a mechanical device

to transfer the power to the rotor of PCP down-hole

pump, and make the rotor to do planetary motion,

and to pump crude oil.

Subtor can equip two main auxiliary products, i.e., the

surface drive device special for new-type gear direct

drive PC pump and the permanent magnet motor

direct-driven device.

The main component parts of the surface drive device

special for new-type gear direct drive PC pump are:

electric motor, gear box, anti-reverse mechanism,

sealing device, well plugging device and electric

control cabinet. Through the sucker rod rotational

motion, the surface drive device can transfer the

wellhead power to the down hole and drive the

down-hole pump to work.

Characteristics:

The pump with many patents is technically advanced,

superior performance, and simple operation; for

the unique top fully mechanically sealing, there is

not any leakage, it can be simply and easily replaced

without needing any lifting equipment; it is directly

gear driven without needing to change belt, it is

lower noise, energy saving, environmental protection,

smooth running under high speed condition (500rpm),

and greatly reduction of maintenance amount; its

advanced high-voltage isolation device can preferably

protect the mechanical seals.

Surface Drive Device

Gear Type Motor

The permanent magnet motor direct-driven device

has adopted a vertical hollow axle permanent magnet

brushless DC motor to directly drive the polish rod of

the PC pump, transfer the rotary force to the sucker

rod, and to drive the rotor of the PC pump to rotate.

The permanent magnet brushless DC motor is driven

with a special controller, through which the stepless

regulation of rotating speed and various protection

functions of the PC pump unit can be realized.

Characteristics:

The special controller can realize the stepless speed

regulation, and has the protection functions of soft

start-up, soft shutdown, over loading and over current;

anti reverse brake employs the electromagnetic

brake, the reversal potential energy of the rods can

be automatically released; the permanent magnet

brushless motor does not have any excitation loss, it

is high efficient and high power density; through the

human-computer interface of the controller, it is easy

to regulate the parameters and simple to operate.

Aiming at different surface drive devices, Subtor

supplies completely the frequency conversion control

cabinet and permanent magnet motor direct-driven

control cabinet for controlling the start-up, stop, and

speed regulation of motor, automatically displaying,

recording the current and voltage of the PCP down-

hole pump in regular production, the automatic

protection function of overload and underload can

guarantee normal production of oil wells.

Permanent Magnet Motor

Control Cabinet

S-PCP Down-hole Pump

Subtor mainly manufactures single head PCP down-

hole pump, the main structures are stator, rotor and

limit short sections. The connecting thread of stator

is standard tubing thread, and the connecting thread

of rotor is the standard sucker rod thread, it can also

specially tailor made according to the requirement of

customers.

Typical characteristics of vulcanized rubbers Nitrile

Rubber

High

Acrylonitrile

Content NBR

Hydrogenated

Nitrile Rubber

Fluorine

Rubberr

International abbreviation Subtor NBR NBRH HNBR FKM

Hardness range(Shore A) 20A-75D 25A-75D 50A-95A 50A-90A

Mechanical

characteristics at

room temperature

Tensile strength

Elongation at break

Rebound resilience

Tear strength / Tear resistance

Abrasion resistance

Compression setat max. continuous service temperature

at room temperature

Thermal

properties

Low temperature performance (Tg) down to ℃-45 -20 -40 -30

Max. continuous service temperature up to ℃110 150 150 220

Resistance against

Gasoline

Mineral oil (at 100 ℃ )

Ac ids (Water d i lu ted anorgan ic ac ids at room

temperature)

Lyes (Water diluted anorganic lyes at room temperature)

Water (at 100℃ ,Dist.)

Weathering and ozone

Assessment Very good satisfactory insufficient

The rotor's material mainly is steel 45, alloy steel 42CrM,

stainless steel 304 and 316, it is machined with high-

precision CNC screw machining equipment and surface

chrome plated for wear resistance and anticorrosion. The

rotor processing equipment is introduced from Germany,

it can machine single-head and multi-head rotor in

high precision, the dimension error ≤ ±0.04mm and the

longest work piece can reach 10m.

The stator consists of a metal sleeve and the rubber

lined inside, all the stators used by our company are

adopt German Technology, the elastomers mainly

including the high performance rubber as NBR, NBRH,

• Heat resistance, low temperature ≤ 80℃ , medium

temperature ≤ 120℃ , high temperature ≤ 150℃• Well liquid viscosity ≤ 8000mpa•s

• Place of pump hanging, gas-oil ratio GOR ＜ 10m³/m³

• Pump submergence depth ≥ 100m

• H2S volume content ≤ 2.5%

• Well liquid relative density ≤ 0.96, API gravity

over 16

• Pump installation depth up to the deepest

2400m

Technical performance index of Subtor PCP down-hole pump

HNBR and FKM，which having excellent performance

of oil resistance, water proofing, high-temperature

resistance, and swelling resistance.

Comparison of common used steel types for rotor

China USA Germany

Material mark Material mark Material mark Material code

45 1045 C45 1.0503

42CrMo 4140 42CrMo4 1.7225

2Cr13 410 X20Cr13 1.4021

0Cr18Ni9 304 X4CrNi18-10 1.4301

0Cr17Ni12Mo2 316 X5CrNiMo17-12-2 1.4401

S-PCP Down-hole Pump Selection Sheet

TypeDisplacement（at 100rpm） Liftingcapacity Connection Stator Connection Rotor

m3/day bls/day m foot API 5CT API 11B

VSP-0.7/9 0.7 4.5 900 3000 1.66"NU or 1.66"EU or Above 1/2"






VSP-1/9 1 6.3 900 3000 1.66"NU or 1.66"EU or Above 1/2"






VSP-1.5/9 1.5 10 900 3000 2-3/8"NU or 2-3/8"EU or Above 5/8"






VSP-3/9 3 19 900 3000 2-3/8"NU or 2-3/8"EU or Above 5/8"




































VSP-16.5/9 16.5 104 900 3000 3-1/2"NU or 3-1/2"EU or Above 1"


VSP—модель насоса vv—теоретическая подача （м³/сут，100 об/мин）nn—теоретическая высота подъема ( nn×100м）

TypeDisplacement（at 100rpm） Liftingcapacity Connection Stator Connection Rotor

m3/day bls/day m foot API 5CT API 11B





VSP-20/9 20 126 900 3000 3-1/2"NU or 3-1/2"EU or Above 1"












VSP-35/9 35 221 900 3000 4"NU or 4"EU or Above 1"








VSP-40/15 40 252 1500 5000 4"NU or 4"EU or Above 1-1/8"

















VSP-105/9 105 662 900 3000 5"LC or Above 1-1/8"

VSP-105/12 105 662 1200 4000 5"LC or Above 1-1/8"

VSP-105/15 105 662 1500 5000 5"LC or Above 1-1/8"

VSP-120/9 120 757 900 3000 5"LC or Above 1-1/8"

VSP-120/12 120 757 1200 4000 5"LC or Above 1-1/8"

VSP-120/15 120 757 1500 5000 5"LC or Above 1-1/8"

VSP-130/9 130 819 900 3000 5"LC or Above 1-1/8"

VSP-130/12 130 819 1200 4000 5"LC or Above 1-1/8"

VSP-130/15 130 819 1500 5000 5"LC or Above 1-1/8"

VSP-160/9 160 1071 900 3000 5-1/2"LC or Above 1-1/8"

VSP-160/12 160 1071 1200 4000 5-1/2"LC or Above 1-1/8"

VSP-160/15 160 1071 1500 5000 5-1/2"LC or Above 1-1/8"

VSP-170/9 170 1071 900 3000 5-1/2"LC or Above 1-1/8"

VSP-170/12 170 1071 1200 4000 5-1/2"LC or Above 1-1/8"

VSP-170/15 170 1071 1500 5000 5-1/2"LC or Above 1-1/8"

VSP—модель насоса vv—теоретическая подача （м³/сут，100 об/мин）nn—теоретическая высота подъема ( nn×100м）

Supporting Accessories

Polish rod:

Conforming to standard API Spec 11B, strength grade:

Grade D, and H

Sucker rod :


Grade D, and H; Subtor can also provide the customer

with the sucker rod and hollow sucker rod special for

the PC pump with taper thread connection

Sucker rod coupling:


Grade D, and H

Sucker rod centralizer:

The rod string is rotating inside the oil tube, because

the large centrifugal force and the inertia effect can

make the rod string vibrating and bent the friction

between the sucker rod string and the tube inner

wall will occur. Therefore, a righting measure for the

rod string should be taken to eliminate the vibration

and avoid the direct contact of the rod string with the

tube inner wall

Pump, oil tube centralizer

The rotation of the rotor inside the stator of a PC

pump will produce a centrifugal effect, this will make

the stator periodically impacted and then producing

vibration, such existing vibration will reduce the

service life of the system. Therefore, a righting

measure for the body of the PC pump should be taken

so as to reduce or remove such vibration

Oil tube:

Conforming to the requirement of standard API

Spec 5CT

Torque anchor:

Because the rotor of a PC pump is rotating clockwise

inside the stator, the workload is directly in the form

of torque, the torque of the rotor exerts on the stator,

the torque of the stator will make the top right hand

thread oil tube releasing and the tube string dropped

out, therefore, a thread-off proof measure for the oil

tube string of a PC pump well should be taken, and a

torque anchor should be mounted

Other accessories:

Including down-hole pressure and temperature

detector, square clamp for polish rod, sieve tube, well

washing valve, and oil relief valve

Other Products

Tube

Rubber

Stator

The production of customized rotors, stators and radial

bearings for Mud – Motor Power sections and special

applications with our team of experts in Germany and

Asia

Subtor develops, design and produces high end Power

Sections for various applications or to the precise need

of customer

Detailed Know How and full process control from the

very first layout until the final run in the field is our

strength

Power Section—For Mud Driller

S-Power Section Performance Chart

Production Site

Side view for Stator of Power Section

Rotors & Material Quarantine AreaPolishing Process

Semi-manufactured Rotor

Other Products

PCP Multiphase Pump

Natural gas volume at standard condition

Gas volume at inlet condition

Water

Sand

Oil

•Oil and gas transferred by one pipe line, lower investment

•Inlet Pressure automatic control systems maintains stable flow

•Reduce well backpressure and minimize the leak of oil

•Increase pressure of the whole line and conveying efficiency

LCDPLC

Av

pressure

PT

dry running protector

P

control cabinet power supply

RTU

pressure gauge LCP

PSVP

Stator core manufactured field on PS1000 CNC

We can design and provide stator cores for special applications

like asymmetric- , tapered - and multilayer – stators which

are particular designed to balance the individual shrinking of

compounds

• Anti-swelling

• High temperature resistance

• Aging resistant

• Apply to Conveying High Temperature Pitch, heavy oil, hot oil

• Apply to high temperature and high viscosity liquid

• Top temperature tolerance : 250℃

• High Pressure capability：12bar per lead

• Smaller than traditional stator

• Faster heat dissipation

• Longer service life

Stator Core

Metal Stator

Characteristics

Testing, Inspection & Customer Support

Good customer service shall start before product delivery, it will become the basis of products quality and reliability.

• Factory inspection

• Performance testing

• Installation & start-up

Test and Inspection

Our professional after service engineers are

prepared to serve you to solve all kinds of your

problems on products day and night

Services include:

•Training operating personnel

•Guiding, at initial time, our clients to solve the problems

encountered in process of using our product

•Visit the client to maintain the equipment

•Technical consultation to clients

Within two hours from receiving the fault notification of

our client a solution scheme should be put forward, and our

engineers should arrive at the scene to service within 24 hours

After - sale service

Commonly used parts are always kept in stock; we

guaranteed to deliver the spare parts to the client

immediately when they need them

• Rotor

• Stator

• Joint sealing, O-ring

• Shaft seal (mechanical seal or packing)

• Joint and other parts, such as pin, spacer sleeve long/short sleeve, clamp spring

Spare parts

Date post:	21-Nov-2021
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Subtor PCP Down-hole Pump

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