CN105927177B - A kind of electric drive casing patching power set - Google Patents

A kind of electric drive casing patching power set Download PDF

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Publication number
CN105927177B
CN105927177B CN201610401900.6A CN201610401900A CN105927177B CN 105927177 B CN105927177 B CN 105927177B CN 201610401900 A CN201610401900 A CN 201610401900A CN 105927177 B CN105927177 B CN 105927177B
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China
Prior art keywords
connector
worm drive
housing
guide
power set
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CN201610401900.6A
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CN105927177A (en
Inventor
汪长栓
袁文豪
袁铁刚
谢明召
王宝兴
冯国富
焦冠东
王飞
田密
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North Schlumberger Oilfield Tech Xi'an Co Ltd
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North Schlumberger Oilfield Tech Xi'an Co Ltd
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Publication of CN105927177A publication Critical patent/CN105927177A/en
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    • EFIXED CONSTRUCTIONS
    • E21EARTH OR ROCK DRILLING; MINING
    • E21BEARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
    • E21B29/00Cutting or destroying pipes, packers, plugs or wire lines, located in boreholes or wells, e.g. cutting of damaged pipes, of windows; Deforming of pipes in boreholes or wells; Reconditioning of well casings while in the ground
    • E21B29/10Reconditioning of well casings, e.g. straightening

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  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Geology (AREA)
  • Mining & Mineral Resources (AREA)
  • Physics & Mathematics (AREA)
  • Environmental & Geological Engineering (AREA)
  • Fluid Mechanics (AREA)
  • General Life Sciences & Earth Sciences (AREA)
  • Geochemistry & Mineralogy (AREA)
  • Transmission Devices (AREA)
  • Earth Drilling (AREA)

Abstract

The present invention provides a kind of electric drive casing patching power set, including top connection, are connected with electrodynamic element, worm drive unit, track element and adaptation unit, electrodynamic element in the top connection in turn and provide power source for whole device;The rotational motion that electrodynamic element exports can be changed into axial reciprocating motion by worm drive unit;Track element causes screw rod that can only be axially moved;Adaptation unit can play the role of righting for being docked with subsequent component, by the cooperation of guide piston and guide piston cylinder, prevent in construction because the eccentric torque generated of subsidy pipe device draw-in bar generates interference to the normal operating conditions of worm drive pair.The present invention uses power set of the motor as casing patching apptss, is supported without huge ground hydraulic equipment, and subsidy repairing casing takes less, simple to operate, simplifies difficulty of construction, also reduces operating expenses.

Description

A kind of electric drive casing patching power set
Technical field
The invention belongs to field of oilfield exploitation, are related to power set, and in particular to a kind of electric drive casing patching power Device.
Background technology
In oil field development production process, with the increase of production time, various geologic(al) factors and artificial measures can be right Underground metal sleeve generates different degrees of influence, and it is to ensure that oil field continues in time, effectively to block and reinforce damaged casing Exploitation and the important measures of production.
In the prior art, in order to repair often casing using hydraulic expansion reinforcing device for down-hole casing patch, use Tubing transmission under patch device at impaired casing, will inject high pressure water with pump truck out of pipe, make in patching tube squeeze swollen head to By patching tube enlarged-diameter, the subsidy pipe outer wall after swelling forms interference fit with internal surface of sleeve pipe, realizes sealing and reinforcing for upper movement. Necessary seal and pressure bearing after oil pipe connection, once air-proof condition fails, cannot ensure the normal of construction in technology requirement construction It carries out.
The content of the invention
In view of the deficiencies of the prior art, the present invention intends to provide a kind of electric drive casing patching power dress It puts, solves the technical issues of difficulty of construction height of casing patching in the prior art, of high cost.
To solve the above-mentioned problems, the present invention is realised by adopting the following technical scheme:
A kind of electric drive casing patching power set including top connection, are connected in turn electronic in the top connection Unit, worm drive unit, track element and adaptation unit, motor room housing and the worm drive unit of the electrodynamic element Worm drive cabin housing between connected by motor compartment connector;The worm drive cabin housing of the worm drive unit with It is connected between the orbital module housing of track element by worm drive cabin connector;The orbital module housing of the track element is with fitting It is connected between guide piston cylinder with unit by guide cylinder connector;
The electrodynamic element includes motor room housing, is equipped with motor in motor room housing, motor passes through deceleration Device is connected with transmission shaft;
The worm drive unit includes worm drive cabin housing, and one end and transmission are equipped in the housing of worm drive cabin The sleeve nut that axis is connected, one end of screw rod is equipped on the other end of sleeve nut, and transmission shaft drives sleeve nut to rotate, makes It obtains screw rod and axially reciprocating is realized in sleeve nut;
The track element includes orbital module housing, be equipped in orbital module housing for by the other end of screw rod with it is suitable With the connector sleeve that the guide piston bar in unit links together, connector sleeve outer cover has track tube, one end installation of track tube In the end of worm drive cabin connector, the other end of track tube opens;Guide groove is axially machined on the side wall of track tube, is connected The guide finger being equipped with guide groove cooperation is put on, the cooperation of guide finger and guide groove causes screw rod that can only be axially moved;
The adaptation unit includes guide piston cylinder, and guide piston bar, guide piston bar are equipped in guide piston cylinder End be connected by guide piston with swimming one end of nonyl connecting rod, swim and trip nonyl be installed on the other end of nonyl connecting rod, swim nonyl Outside is provided with setting cylinder, and setting cylinder is mounted on the end lateral wall of guide piston cylinder.
The present invention also has following distinguishing feature:
The top connection and the junction of motor room housing, the junction of motor room housing and motor compartment connector, electricity Motivation cabin connector and the junction of worm drive cabin housing, the junction of worm drive cabin housing and worm drive cabin connector, spiral shell The junction of rotation transmission cabin connector and orbital module housing, orbital module housing at guide cylinder joint contact surfaces and guide cylinder connector and O-ring seal is mounted at the contact surface of guide piston bar.
The top connection and the junction of motor room housing, the junction of motor room housing and motor compartment connector, electricity Motivation cabin connector and the junction of worm drive cabin housing, the junction of worm drive cabin housing and worm drive cabin connector, spiral shell The junction of rotation transmission cabin connector and orbital module housing, the junction of orbital module housing and guide cylinder connector and guide cylinder connector with The junction of guide piston cylinder is mounted on backing-up screw.
The transmission shaft is mounted in the inner ring of radial bearing, and the outer ring of radial bearing is mounted on motor compartment connector On inner wall;Thrust bearing is installed between the end of the sleeve nut and the end of worm drive cabin connector.
Keyway is provided on the outer wall of the transmission shaft, is provided on the inner wall of sleeve nut and keyway cooperation installation Key is also connected between transmission shaft and sleeve nut by tightly locking screw.
The annular groove that both ends do not penetrate through axially is machined on the lateral wall of the guide piston.
Annular groove, one end insertion annular groove of track tube are machined on the lower face of worm drive cabin connector vertically It is interior and pass through tightly lock screw link together.
Setting cylinder locking nut is also equipped on the guide piston cylinder of the setting cylinder end.
The retarder uses planetary reducer.
Compared with prior art, the present invention it has the following technical effect that:
(I) present invention uses power set of the motor as casing patching apptss, without huge ground hydraulic equipment branch It holds, subsidy repairing casing takes less, simple to operate, simplifies difficulty of construction, also reduces operating expenses.
(II) external structure of electrical propulsion unit of the present invention gets up internal structure sealed envelope, passes motor, spiral It is dynamic secondary while normal work from underground medium (such as:Oil, wax, mud, sand, acid etc.) pollution and damage, can improve The service life of package unit;It, only need to be by the surface of apparatus surface and the guide piston bar stretched out simultaneously when having constructed cleaning It wipes clean, simplifies maintaining program, improve work efficiency.
(III) when the present apparatus works, righting can be played the role of by the cooperation of guide piston and guide piston cylinder, prevented Because the eccentric torque generated of subsidy pipe device draw-in bar generates interference to the normal operating conditions of worm drive pair in construction.
Description of the drawings
Fig. 1 is the single unit system half section structure diagram of the present invention.
Fig. 2 is the electrodynamic element half section structure diagram of the present invention.
Fig. 3 is the worm drive unit half section structure diagram of the present invention.
Fig. 4 is the track element half section structure diagram of the present invention.
Fig. 5 is the adaptation unit half section structure diagram of the present invention.
Fig. 6 is the structure diagram of track tube.
The meaning of each label is in figure:1- top connections, 2- electrodynamic elements, 3- worm drive units, 4- track elements, 5- Adaptation unit, 6- motor compartment connectors, 7- worm drive cabin connector, 8- guide cylinder connectors, 9-O type sealing rings, the locking spiral shells of 10- Nail, 11- radial bearings, 12- thrust bearings, 13- keyways, 14- keys, 15- tightly lock screw, 16- annular grooves, and 17- tightly locks screw;
(2-1)-motor room housing, (2-2)-motor, (2-3)-retarder, (2-4)-transmission shaft;
(3-1)-worm drive cabin housing, (3-2)-sleeve nut, (3-3)-screw rod;
(4-1)-orbital module housing, (4-2)-connector sleeve, (4-3)-track tube, (4-4)-guide groove, (4-5)-guide finger, (4-6)-tightly lock screw mounting hole;
(5-1)-guide piston cylinder, (5-2)-guide piston bar, (5-3)-guide piston, (5-4)-trip nonyl connecting rod, (5- 5)-trip nonyl, (5-6)-setting cylinder, (5-7)-annular groove, (5-8)-locking nut.
Explanation is explained in detail to the particular content of the present invention below in conjunction with drawings and examples.
Specific embodiment
Specific embodiments of the present invention are given below, it is necessary to which explanation is that the invention is not limited in implement in detail below Example, all equivalents done on the basis of technical scheme each fall within protection scope of the present invention.
Embodiment 1:
Above-mentioned technical proposal is deferred to, as shown in Figures 1 to 6, the present embodiment provides a kind of electric drive casing patching power Device including top connection 1, is connected with electrodynamic element 2, worm drive unit 3,4 and of track element in turn in the top connection 1 Adaptation unit 5, the motor room housing 2-1 of the electrodynamic element 2 and the worm drive cabin housing 3-1 of worm drive unit 3 it Between connected by motor compartment connector 6;The worm drive cabin housing 3-1 of the worm drive unit 3 and the rail of track element 4 It is connected between the housing 4-1 of road cabin by worm drive cabin connector 7;The orbital module housing 4-1 of the track element 4 is single with being adapted to It is connected between the guide piston cylinder 5-1 of member 5 by guide cylinder connector 8;
The electrodynamic element 2 includes motor room housing 2-1, and motor 2-2 is equipped in motor room housing 2-1, electronic Machine 2-2 is connected by retarder 2-3 with transmission shaft 2-4;
The worm drive unit 3 includes worm drive cabin housing 3-1, and one is equipped in the housing 3-1 of worm drive cabin The sleeve nut 3-2 being connected with transmission shaft 2-4 is held, one end of screw rod 3-3, transmission are installed on the other end of sleeve nut 3-2 Axis 2-4 drives sleeve nut 3-2 to rotate so that screw rod 3-3 realizes axially reciprocating in sleeve nut 3-2;
The track element 4 includes orbital module housing 4-1, is equipped in orbital module housing 4-1 for by screw rod 3-3's The connector sleeve 4-2 that the other end links together with the guide piston bar 5-2 in adaptation unit 5, connector sleeve 4-2 outer covers have track One end of cylinder 4-3, track tube 4-3 are mounted on the end of worm drive cabin connector 7, and the other end of track tube 4-3 opens;Track tube Guide groove 4-4 is axially machined on the side wall of 4-3, the guide finger 4-5 with guide groove 4-4 cooperations on connector sleeve 4-2 is installed, is led To the cooperation of pin 4-5 and guide groove 4-4 screw rod 3-3 can only be axially moved;
The adaptation unit 5 includes guide piston cylinder 5-1, and guide piston bar 5-2 is equipped in guide piston cylinder 5-1, The end of guide piston bar 5-2 is connected by guide piston 5-3 with swimming one end of nonyl connecting rod 5-4, and trip nonyl connecting rod 5-4's is another Trip nonyl 5-5 on one end is installed, setting cylinder 5-6 is provided with outside trip nonyl 5-5, setting cylinder 5-6 is mounted on guide piston cylinder 5-1's On the lateral wall of end.
Electrodynamic element 2 provides power source for whole device;The rotation that worm drive unit 3 can export electrodynamic element is transported Turn becomes axial reciprocating motion;Track element 4 is so that screw rod 3-3 can only be axially moved;Adaptation unit 5 be used for it is follow-up Component docked, righting can be played the role of by the cooperation of guide piston 5-3 and guide piston cylinder 5-1, prevent from constructing It is middle to be disturbed because the eccentric torque generated of subsidy pipe device draw-in bar generates the normal operating conditions of worm drive pair.
The junction of top connection 1 and motor room housing 2-1, motor room housing 2-1 and motor compartment connector 6 junction, Junction, worm drive cabin housing 3-1 and the worm drive cabin connector 7 of motor compartment connector 6 and worm drive cabin housing 3-1 Junction, the junction of worm drive cabin connector 7 and orbital module housing 4-1, orbital module housing 4-1 are contacted with guide cylinder connector 8 O-ring seal 9 is mounted at face and at the contact surface of guide cylinder connector 8 and guide piston bar 5-2.Pass through during the work time O-ring seal 9 can prevent extraneous impurity from entering inside device, protect internal structure not impaired and extend the use longevity of device Life.
The junction of top connection 1 and motor room housing 2-1, motor room housing 2-1 and motor compartment connector 6 junction, Junction, worm drive cabin housing 3-1 and the worm drive cabin connector 7 of motor compartment connector 6 and worm drive cabin housing 3-1 Junction, the junction of worm drive cabin connector 7 and orbital module housing 4-1, the company of orbital module housing 4-1 and guide cylinder connector 8 The place of connecing and the junction of guide cylinder connector 8 and guide piston cylinder 5-1 are mounted on backing-up screw 10.Backing-up screw 10 can prevent Each junction comes off in use.
Transmission shaft 2-4 is mounted in the inner ring of radial bearing 11, and the outer ring of radial bearing 11 is mounted on motor compartment connector 6 Inner wall on;Thrust bearing 12 is installed between the end of the sleeve nut 3-2 and the end of worm drive cabin connector 7. Axial supporting role is provided for sleeve nut 3-2 and reduces frictional force.
Keyway 13 is provided on the outer wall of transmission shaft 2-4, is provided with to coordinate with keyway 13 on the inner wall of sleeve nut 3-2 and pacify The key 14 of dress is also connected between transmission shaft 2-4 and sleeve nut 3-2 by tightly locking screw 15.
The annular groove 5-7 that both ends do not penetrate through, annular groove 5- are axially machined on the lateral wall of guide piston 5-3 7 as assembling when and assembly tool contact surface, prevent plowing from the sealing surface of guide piston 5-3.
Annular groove 16, one end insertion annular of track tube 4-3 are machined on the lower face of worm drive cabin connector 7 vertically In slot 16 and pass through tightly lock screw 17 and link together.
Setting cylinder locking nut 5-8 is also equipped on the guide piston cylinder 5-1 of setting cylinder 5-6 ends.
Retarder 2-3 uses planetary reducer.
The course of work of the present invention is as described below:
Scene one:It is matched with armored cable
It is fixedly mounted on after motor 2-2 and retarder 2-3 is coaxially connected in motor room housing 2-1, cable core is worn The power cord that top connection 1 is crossed with motor 2-2 is connected, and top connection 1 is socketed on motor room housing 2-1, power set its Remaining assembly method completes the assembling of electric drive casing patching power set as described in said program.
The trip nonyl 5-5 in electric drive casing patching power set in the present embodiment connects with subsequent subsidy pipe device It connects, the top connection 1 in electric drive casing patching power set is connected with the halter on armored cable, internal wire connects It is logical, electric drive casing patching power set and subsidy pipe device are transmitted to by underground by cable and treat that position is reinforced in subsidy, by Ground motor control module control motor 2-2 work, passes through the worm drive adjutant of sleeve nut 3-2 and screw rod 3-3 compositions The torque of motor 2-2 outputs is changed into axial force so that trip nonyl 5-5 can drive subsequent parts axially reciprocating.
Top connection 1 is connected with the halter on armored cable, first by patching tube tripping in well head, then with the big hook block of workover rig The electric drive casing patching power set for being connected to cable are acted, then by the trip of electric drive casing patching power set lower end Nonyl 5-5 is threadedly attached on the trip nonyl connector sleeve of subsidy pipe device upper end, then will swim nonyl 5-5 locks with trip nonyl locking nut Tightly, the snap-gauge in upper tapered sleeve is removed, the setting cylinder 5-6 of backspin electric drive casing patching power set lower end, makes setting afterwards Cylinder 5-6 is connected with the upper tapered sleeve erecting device in subsidy pipe device, and tightening setting cylinder locking nut 5-8 prevents from releasing, and completes electricity Power drive sleeve is subsidized in whole system lower going-into-well after power set and the connection for subsidizing pipe device, with cable by electric drive Casing patching power set and subsidy pipe device are delivered to position to be subsidized.
It is measured according to the measuring instrument carried on the cable of transmission subsidy system and accurately adjusts the position of patching tube, confirmed It is worked after errorless by the motor 2-2 in ground motor control module startup electric drive casing patching power set, in electricity Upper and lower tapered sleeve is squeezed into the anchor mechanism at patching tube both ends under the promotion of power drive sleeve subsidy power set, make patching tube Upper and lower end anchor mechanism swells, and formed win cooperation with casing, and realized anchoring, the sealing function of patching tube.
Motor 2-2 works on, and axial force also constantly increases, when upper and lower tapered sleeve is acted on anchor mechanism When radially dilating power and anchor mechanism, casing and stratum and balancing each other to their restraining force, anchor mechanism stopping swells, at this point, Stopping axially moves, and the axial force of the secondary output of worm drive all acts on the ring of giving up in lower tapered sleeve erecting device On, when the pulling force of pull rod reaches the destruction value of thrust for ring of giving up, ring of giving up fracture realizes erecting device unfreezing of trapping, at this time Ground motor control module stops the work of motor 2-2, and whole device is finally proposed to construction well together with cable, completes to mend Paste seal of tube anchoring.When transmitting patching tube using armored cable, conveying can be realized by concatenating Depth Meter on cable It is once completed with measurement check and correction patching tube depth, easy construction.
Scene two:It is matched with oil pipe:
Top connection 1 can also be connected with existing oil pipe, can be converted to tubing transmission pattern, be driven electric power by oil pipe Dynamic casing patching power set and subsidy pipe device are transferred to subsidy and reinforce position, and using ground caber, caber, which prolongs in oil pipe, to be led to Road, which falls, hits firing pin, impact force breaking pin, and firing pin moves down triggering and hits electric switch unit connection circuit so that electric power drives The motor 2-2 of dynamic casing patching power set starts to work, and starts electric drive casing patching by way of caber shock and moves Power apparatus completes casing patching.
In the prior art the hydraulic power of coiled tubing transmission can also be used to be subsidized, since one piece shapes Coiled tubing manufacture it is of high cost, therefore complete equipment cost of use is big.Tubing transmission electric drive casing is used in the present invention Oil pipe is connected without seal and pressure bearing requirement during patch device, simplifies construction requirement, reduces operating expenses.

Claims (9)

1. a kind of electric drive casing patching power set, including top connection (1), it is characterised in that:In the top connection (1) It is connected with electrodynamic element (2), worm drive unit (3), track element (4) and adaptation unit (5), the electrodynamic element in turn (2) connect between motor room housing (2-1) and the worm drive cabin housing (3-1) of worm drive unit (3) by motor compartment Head (6) connection;The worm drive cabin housing (3-1) of the worm drive unit (3) and the orbital module housing of track element (4) It is connected between (4-1) by worm drive cabin connector (7);The orbital module housing (4-1) of the track element (4) is single with being adapted to It is connected between the guide piston cylinder (5-1) of first (5) by guide cylinder connector (8);
The electrodynamic element (2) includes motor room housing (2-1), and motor (2-2) is equipped in motor room housing (2-1), Motor (2-2) is connected by retarder (2-3) with transmission shaft (2-4);
The worm drive unit (3) includes worm drive cabin housing (3-1), is equipped in worm drive cabin housing (3-1) The sleeve nut (3-2) that one end is connected with transmission shaft (2-4) is equipped with screw rod (3-3) on the other end of sleeve nut (3-2) One end, transmission shaft (2-4) drive sleeve nut (3-2) to rotate so that screw rod (3-3) is realized axial in sleeve nut (3-2) It moves back and forth;
The track element (4) includes orbital module housing (4-1), is equipped in orbital module housing (4-1) for by screw rod (3- 3) connector sleeve (4-2) that the other end links together with the guide piston bar (5-2) in adaptation unit (5), connector sleeve (4-2) Outer cover has track tube (4-3), and one end of track tube (4-3) is mounted on the end of worm drive cabin connector (7), track tube (4- 3) the other end opens;Guide groove (4-4) is axially machined on the side wall of track tube (4-3), be equipped on connector sleeve (4-2) with The guide finger (4-5) of guide groove (4-4) cooperation, the cooperation of guide finger (4-5) and guide groove (4-4) so that screw rod (3-3) can only It is being axially moved;
The adaptation unit (5) includes guide piston cylinder (5-1), and guide piston bar (5- is equipped in guide piston cylinder (5-1) 2), the end of guide piston bar (5-2) is connected by guide piston (5-3) with one end of trip nonyl connecting rod (5-4), trip nonyl connection Trip nonyl (5-5) on the other end of bar (5-4) is installed, setting cylinder (5-6), setting cylinder (5-6) peace are provided with outside trip nonyl (5-5) On the end lateral wall of guide piston cylinder (5-1).
2. electric drive casing patching power set as described in claim 1, it is characterised in that:The top connection (1) with The junction of motor room housing (2-1), the junction of motor room housing (2-1) and motor compartment connector (6), motor compartment connector (6) with the junction of worm drive cabin housing (3-1), the connection of worm drive cabin housing (3-1) and worm drive cabin connector (7) Place, junction, orbital module housing (4-1) and the guide cylinder connector (8) of worm drive cabin connector (7) and orbital module housing (4-1) At contact surface and guide cylinder connector (8) at the contact surface of guide piston bar (5-2) with being mounted on O-ring seal (9).
3. electric drive casing patching power set as described in claim 1, it is characterised in that:The top connection (1) with The junction of motor room housing (2-1), the junction of motor room housing (2-1) and motor compartment connector (6), motor compartment connector (6) with the junction of worm drive cabin housing (3-1), the connection of worm drive cabin housing (3-1) and worm drive cabin connector (7) Place, junction, orbital module housing (4-1) and the guide cylinder connector (8) of worm drive cabin connector (7) and orbital module housing (4-1) Junction and the junction of guide cylinder connector (8) and guide piston cylinder (5-1) be mounted on backing-up screw (10).
4. electric drive casing patching power set as described in claim 1, it is characterised in that:The transmission shaft (2-4) In the inner ring of radial bearing (11), the outer ring of radial bearing (11) is mounted on the inner wall of motor compartment connector (6);Institute Thrust bearing (12) is installed between the end of the sleeve nut (3-2) stated and the end of worm drive cabin connector (7).
5. electric drive casing patching power set as described in claim 1, it is characterised in that:The transmission shaft (2-4) Outer wall on be provided with keyway (13), be provided on the inner wall of sleeve nut (3-2) with keyway (13) cooperation installation key (14), Also it is connected between transmission shaft (2-4) and sleeve nut (3-2) by tightly locking screw (15).
6. electric drive casing patching power set as described in claim 1, it is characterised in that:Worm drive cabin connector (7) annular groove (16) is machined on lower face vertically, one end insertion annular groove (16) of track tube (4-3) is interior and passes through tight Lock screw (17) links together.
7. electric drive casing patching power set as described in claim 1, it is characterised in that:Guide piston (the 5- 3) annular groove (5-7) that both ends do not penetrate through axially is machined on lateral wall.
8. electric drive casing patching power set as described in claim 1, it is characterised in that:The setting cylinder (5-6) Setting cylinder locking nut (5-8) is also equipped on the guide piston cylinder (5-1) of end.
9. electric drive casing patching power set as described in claim 1, it is characterised in that:The retarder (2-3) Using planetary reducer.
CN201610401900.6A 2016-06-07 2016-06-07 A kind of electric drive casing patching power set Active CN105927177B (en)

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CN201610401900.6A CN105927177B (en) 2016-06-07 2016-06-07 A kind of electric drive casing patching power set

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CN105927177B true CN105927177B (en) 2018-05-18

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Publication number Priority date Publication date Assignee Title
CN101148974A (en) * 2007-08-29 2008-03-26 辽河石油勘探局 Horizontal well sheath repairing tool
CN201982046U (en) * 2011-03-22 2011-09-21 中国石油天然气股份有限公司 Expansion pipe compensation tool for pressure boost of incline disk type plunger pump
CN103015935A (en) * 2012-12-24 2013-04-03 中国石油天然气股份有限公司 Top-down pull rod type expansion pipe structure
CN105569596A (en) * 2015-12-14 2016-05-11 中国石油大学(华东) Deformed casing repairing device
CN205663418U (en) * 2016-06-07 2016-10-26 北方斯伦贝谢油田技术(西安)有限公司 Electric drive casing patching power device

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7124829B2 (en) * 2002-08-08 2006-10-24 Tiw Corporation Tubular expansion fluid production assembly and method

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101148974A (en) * 2007-08-29 2008-03-26 辽河石油勘探局 Horizontal well sheath repairing tool
CN201982046U (en) * 2011-03-22 2011-09-21 中国石油天然气股份有限公司 Expansion pipe compensation tool for pressure boost of incline disk type plunger pump
CN103015935A (en) * 2012-12-24 2013-04-03 中国石油天然气股份有限公司 Top-down pull rod type expansion pipe structure
CN105569596A (en) * 2015-12-14 2016-05-11 中国石油大学(华东) Deformed casing repairing device
CN205663418U (en) * 2016-06-07 2016-10-26 北方斯伦贝谢油田技术(西安)有限公司 Electric drive casing patching power device

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Denomination of invention: Power-driven casing patching power device

Effective date of registration: 20190709

Granted publication date: 20180518

Pledgee: Xi'an innovation financing Company limited by guarantee

Pledgor: North Schlumberger Oilfield Technology (Xi'an) Co., Ltd.

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