CN105239943B - Multi-functional tubing string lifting device - Google Patents
Multi-functional tubing string lifting device Download PDFInfo
- Publication number
- CN105239943B CN105239943B CN201510556728.7A CN201510556728A CN105239943B CN 105239943 B CN105239943 B CN 105239943B CN 201510556728 A CN201510556728 A CN 201510556728A CN 105239943 B CN105239943 B CN 105239943B
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- China
- Prior art keywords
- seating nipple
- hole
- tieback
- transmitting joint
- pressure
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- Expired - Fee Related
Links
- 210000002445 nipple Anatomy 0.000 claims description 62
- 210000003746 feather Anatomy 0.000 claims description 10
- 230000002093 peripheral effect Effects 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 16
- 238000002347 injection Methods 0.000 abstract description 14
- 239000007924 injection Substances 0.000 abstract description 14
- 238000000034 method Methods 0.000 abstract description 4
- 239000003921 oil Substances 0.000 description 12
- 239000010720 hydraulic oil Substances 0.000 description 10
- 239000007788 liquid Substances 0.000 description 7
- 238000007789 sealing Methods 0.000 description 6
- 238000011010 flushing procedure Methods 0.000 description 5
- 230000005540 biological transmission Effects 0.000 description 3
- 238000013461 design Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004576 sand Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 206010016825 Flushing Diseases 0.000 description 1
- 239000010620 bay oil Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000002788 crimping Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 230000033001 locomotion Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 230000032258 transport Effects 0.000 description 1
- 238000003911 water pollution Methods 0.000 description 1
Landscapes
- Earth Drilling (AREA)
Abstract
The invention discloses a kind of multi-functional tubing string lifting device, it is made up of the tieback module being connected with each other, bearing torque module, locking module and hoisting module.The present invention can be realized on the premise of motionless well head ground apply hydraulic pressure make down-hole string lifting, ground apply hydraulic pressure make to be locked in elongation state during descending down-hole string, transmitting torque in whole course, tripping in, transfer in place after ground apply hydraulic pressure and unlock, it is adaptable to water injection well clean-out service process.
Description
Technical field
The present invention relates to it is a kind of on the premise of motionless well head lifted water injection well downhole production tubing string supporting technology, especially
It is related to a kind of multi-functional tubing string lifting device for lifting down-hole string by ground application hydraulic pressure.
Background technology
Water pollution and blocking that shaft bottom has nearby been subjected to can be released or alleviated by water injection well well-flushing, so as to recover
Stratum water absorbing capacity, it is ensured that normal water filling and test.Water injection well needs well-flushing in situations：(1) note is stopped more than 24 hours；
(2) poor water quality injected；(3) under same operating, water injection rate declines more than 15%；(4) by regulation to time between well-flushings；
(5) before allocating and after allotment.
Bohai Bay Oil is used on the separate water injection well of sand control completion technique, its flow string generally with insertion sealing, is inserted
The sealing drum for entering sealing and sand control letting-in tool is corresponded, coordinated, and is played zonal isolation, is that seperated layer water injection creates bar
Part.Meanwhile, insertion sealing is used cooperatively with sealing drum, the well-flushing circulation canal of oil jacket annular space and oil pipe is also plugged, to this
The well-flushing of class separate water injection well is provided with obstacle.
The content of the invention
The invention aims to overcome deficiency of the prior art to be used there is provided one kind on water injection well, Neng Gou
Realize that ground applies hydraulic pressure and makes down-hole string lifting, ground application hydraulic pressure make down-hole string descending, complete on the premise of motionless well head
Journey is locked in the multi-functional tube that ground application hydraulic pressure unlocks after elongation state, decentralization in place during passing torque delivery, tripping in
Post lifting device.
The purpose of the present invention is achieved through the following technical solutions.
The multi-functional tubing string lifting device of the present invention, by the tieback module being connected with each other, bearing torque module, locking module and is carried
Rise module composition.
The tieback module includes top connection, and the top connection bottom is connected with tieback seating nipple, the tieback seating nipple
Lower outside is connected with tieback sub, and the tieback sub lower inside is connected with hung drum.
Upper pressure-transmitting joint of the bearing torque module including being connected to the hung drum lower outside, the upper pressure-transmitting joint,
It is provided with hung drum, tieback seating nipple in the middle part of moment of torsion seating nipple, the moment of torsion work tube outer surface and is evenly distributed with six axles
To straight trough, the upper pressure-transmitting joint inner surface setting has the one-to-one straight trough of straight trough for the tube outer surface that worked with moment of torsion, described
Feather key is provided with straight trough.The side wall of the upper pressure-transmitting joint is provided with a through hole axially penetrated through, and outer surface top
It is provided with a groove.
The locking module is included in being connected on the outside of the main piston of the moment of torsion seating nipple lower outside, the main piston
Top, which is provided with the annular protrusion of integrative-structure, the annular protrusion, is evenly distributed with four axially extending bores, in the through hole
Axially arranged to have unblock piston stifled and unblock piston, the main piston bottom is arranged with lock ring set.The lock ring set side wall is uniform
It is provided with the middle part of axially extending bore, inner surface and is provided with annular groove, and bottom internal diameter is more than upper end internal diameter.
The hoisting module includes being connected to the interior seating nipple of the main piston lower inner surface, the interior seating nipple appearance
Surface cover, which is provided with the outside of lower pressure-transmitting joint, the lower pressure-transmitting joint, is connected with outer working tube, the outer working tube top with it is described on
Pressure-transmitting joint is fixedly connected.The external diameter of the lower pressure-transmitting joint upper end is less than lower outer diameter, and internal diameter is more than lower inner diameter, sets
Have and cover stop screw of the side-wall shaft into through hole positioned at the lock ring, and upper end be fixedly installed on by shear pin and lock ring it is described
Lock ring is covered between main piston.The lower pressure-transmitting joint outer surface sets fluted, and groove bottom is provided with vertical with axis
Through hole with plug, the inner side lower wall of the groove is provided with the circular hole with axis into 9 ° of angles, the circular hole and lower side through hole
It is connected.
It is provided with the middle part of the wall of the tieback sub side in through hole, through hole and is provided with plug.
The groove that section is triangle is evenly arranged with the top of the upper pressure-transmitting joint.
Through-hole inner surface top on the wall of the main piston side is provided with screw thread, and middle part is smooth, cylindrical peripheral surface, the hole of bottom
Footpath is small compared with the aperture at top and middle part, and the inwall of the through hole is provided with an axial rectangular channel.
Be set to eccentric structure in the middle part of the outer working tube, and eccentric structure protrusion side wall be provided with one it is vertical recessed
Groove.
Compared with prior art, the beneficial effect that technical scheme is brought is：
(1) present invention by main piston, unblock piston by being blocked up, unlocking the locking module that piston and lock ring set are constituted, and limit
Position screw, lock ring set and shear pin, ensure that the present invention is locked in elongation state all the time during well is entered, and transferring to
Ground applies hydraulic pressure and can unlocked behind position.
(2) lower pressure-transmitting joint and interior seating nipple are provided with the present invention, two through holes of lower pressure-transmitting joint constitute lower oil circuit
Interface, injects hydraulic oil, by lower pressure-transmitting joint and the annular space of interior seating nipple, under main piston in lower oil circuit interface
Chamber, promotes main piston and interior seating nipple to move up, and realize lifts tubing string in ground application hydraulic pressure；
(3) the upper pressure-transmitting joint with axially extending bore is provided with the present invention, hydraulic oil is injected to through hole, hydraulic oil enters master
The epicoele of piston, promotes main piston, moment of torsion seating nipple to be moved down with interior seating nipple, and then realizes and make in ground application hydraulic pressure
Tubing string is descending.
(4) the upload crimping of moment of torsion seating nipple of the outer surface with straight trough, inner surface with straight trough is provided with the present invention and is led
Xiang Jian, in whole strokes of main piston upstream or downstream, feather key all the time on the straight trough, limit moment of torsion seating nipple with it is upper
The relative rotation of pressure-transmitting joint, so as to limit the relative rotation of top connection and interior seating nipple, realizes whole transmission of the invention
The function of moment of torsion.
Brief description of the drawings
Fig. 1 is the structural representation of the present invention.
Fig. 2 is the structural representation of top connection in Fig. 1.
Fig. 3 is the structural representation of tieback seating nipple in Fig. 1.
Fig. 4 is the structural representation of moment of torsion seating nipple in Fig. 1.
Fig. 5 is the structural representation of tieback sub in Fig. 1.
Fig. 6 is the structural representation of hung drum in Fig. 1.
Fig. 7 is the structural representation of upper pressure-transmitting joint in Fig. 1.
Fig. 8 is the top view of upper pressure-transmitting joint in Fig. 1.
Fig. 9 is the stifled structural representation of unblock piston in Fig. 1.
Figure 10 is the structural representation of main piston in Fig. 1.
Figure 11 is the top view of main piston in Fig. 1.
Figure 12 is the structural representation of unblock piston in Fig. 1.
Figure 13 is the structural representation of lock ring set in Fig. 1.
Figure 14 is the top view of lock ring set in Fig. 1.
Figure 15 is the structural representation of lock ring in Fig. 1.
Figure 16 is the structural representation of Fig. 1 outer works cylinder.
Figure 17 is the top view of Fig. 1 outer works cylinder.
Figure 18 is the structural representation of lower pressure-transmitting joint in Fig. 1.
Figure 19 is the structural representation of interior seating nipple in Fig. 1.
Reference:On the hung drum 7 of 1 top connection, 2 tieback seating nipple, 3 moment of torsion seating nipple, 4 plug, 5 tieback sub 6
The feather key 9 of pressure-transmitting joint 8 unblock piston blocks up the 10 main pistons 11 unblock piston 12 lock ring set shear pin of 13 stop screw 14
Seating nipple in 15 lock ring, 16 outer working tube, 17 times pressure-transmitting joints 18
Embodiment
The invention will be further described below in conjunction with the accompanying drawings.
The multi-functional tubing string lifting device of the present invention, by the tieback module being connected with each other, bearing torque module, locking module and is carried
Rise module composition.
The tieback module includes top connection 1, and there is tieback seating nipple 2 bottom of top connection 1 by screwed connection, described
The lower outside of tieback seating nipple 2 has by screwed connection is provided with through hole in the middle part of tieback sub 5, the side wall of tieback sub 5, leads to
Plug 4 is provided with by screwed connection in hole.The lower inside of tieback sub 5 has hung drum 6 by screwed connection.Described time
The upper and lower ends of joint 5 are also provided with steady nail, are fixedly connected respectively with tieback seating nipple 2 and hung drum 6.
The bearing torque module includes can be by surely following closely with screwed connection in the upper pressure-transmitting joint of the lower outside of hung drum 6
7, the upper top of pressure-transmitting joint 7 can be evenly arranged with the groove that section is triangle, to install.The upper pressure-transmitting joint 7,
Moment of torsion seating nipple 3, the upper end of moment of torsion seating nipple 3 and tieback seating nipple 2 and suspension are provided with hung drum 6, tieback seating nipple 2
6 contact positions of cylinder, which can be respectively arranged with O-ring groove, groove, is provided with O-ring and back-up ring.In the outer surface of moment of torsion seating nipple 3
Portion is evenly distributed with six axial straight troughs, and the upper inner surface setting of pressure-transmitting joint 7 has the straight trough with the outer surface of moment of torsion seating nipple 3
Feather key 8 is provided with one-to-one straight trough, the straight trough.The feather key 8 can be in the outer surface straight trough of moment of torsion seating nipple 3
It is interior to slide, the moment of torsion suffered by upper pressure-transmitting joint 7 can be delivered to moment of torsion seating nipple 3 again.The side wall of the upper pressure-transmitting joint 7 is set
A through hole axially penetrated through is equipped with, as top hydraulic fluid flow paths, and outer surface top is provided with a groove, is used as hydraulic control
Pipeline stopper slot.
The locking module includes can be by surely following closely with screwed connection in the main piston of the lower outside of moment of torsion seating nipple 3
10, the outside middle and upper part of main piston 10 is provided with the annular protrusion of integrative-structure, the annular protrusion and is evenly distributed with four
Unblock piston stifled 9 and unblock piston 11 are axially provided with individual axially extending bore, the through hole, unblock piston 11 is settable O-shaped
O-ring and back-up ring are provided with ring recess, groove, the bottom of main piston 10 is arranged with lock ring set 12.On the side wall of main piston 10
Through-hole inner surface top be provided with screw thread, middle part is smooth, cylindrical peripheral surface, and the aperture of bottom is small compared with the aperture at top and middle part, institute
The inwall for stating through hole is provided with an axial rectangular channel, is conducive to unblock piston stifled 9 to move up and down.It is equal that the lock ring covers 12 side walls
Even be provided with the middle part of axially extending bore, inner surface is provided with annular groove, and bottom internal diameter is more than upper end internal diameter.
The hoisting module is included by screwed connection in the interior seating nipple 18 of the lower inner surface of main piston 10, described
The interior outer surface of seating nipple 18 is arranged with lower pressure-transmitting joint 17, and the lower outside of pressure-transmitting joint 17 is connected with outer by screw thread and steady nail
Seating nipple 16, the top of outer working tube 16 is fixedly connected with the upper pressure-transmitting joint 7 by screw thread and steady nail.The lower pressure transmission
The external diameter of the upper end of joint 17 is less than lower outer diameter, and internal diameter is more than lower inner diameter, is provided with and covers 12 side-wall shafts positioned at the lock ring
Stop screw 13 into through hole, and upper end is fixedly installed on the lock ring set 12 and main piston by shear pin 14 and lock ring 15
Between 10.The outer surface of lower pressure-transmitting joint 17 sets fluted, and groove bottom is provided with vertical with axis logical with plug 4
Hole, the inner side lower wall of the groove is provided with the circular hole with axis into 9 ° of angles, and the circular hole is connected with lower side through hole, and this two
Individual aperture collectively forms the oily oil circuit of lower hydraulic, and injecting high pressure liquid by the oily oil circuit of lower hydraulic presses oil, and can promote main piston
10 motions upwards.The middle part of outer working tube 16 may be configured as eccentric structure, and the protrusion side wall of eccentric structure is provided with one
Vertical groove.
O-ring and back-up ring can be arranged as required in the present invention between the contact surface of each part, is sealed.In the present invention
Well is deposited, transports and entered to the remainder of top connection 1, tieback seating nipple 2 and the present invention respectively, reduces working length.The present invention
In plug 4 when installing at the scene, action pressure-testing joint can be replaced by and apply hydraulic pressure, the present invention enters inspection moment of torsion seating nipple before well
The sealing property of two O-rings of 3 upper ends.
The assembly program of the present invention：
(1) O-ring and back-up ring are attached to the O-ring groove of unblock piston 11；
(2) four through holes of the piston 11 by the drawing direction threading side wall of main piston 10 will be unlocked；
(3) unblock piston stifled 9 is installed, screw thread is tightened；
(4) seal of the endoporus of main piston 10 is installed；
(5) connection moment of torsion seating nipple 3 and main piston 10, tighten screw thread, install steady nail；
(6) endoporus of pressure-transmitting joint 7 and the seal of appearance are installed；
(7) upper pressure-transmitting joint 7 is sheathed on the outside of moment of torsion seating nipple 3 by drawing direction；
(8) feather key 8 is placed in the guide groove of moment of torsion seating nipple 3；
(9) pressure-transmitting joint 7 in dragging, makes feather key 8 enter the upper endoporus of pressure-transmitting joint 7, enters groove；
(10) connection hung drum 6 and upper pressure-transmitting joint 7, tighten screw thread, install steady nail；
(11) seal of the appearance of moment of torsion seating nipple 3 is installed；
(12) seal of the endoporus of tieback sub 5 is installed；
(13) plug 4 is installed on tieback sub 5；Tighten screw thread；
(14) connection tieback sub 5 and hung drum 6, tighten screw thread, install steady nail；
(15) connection main piston 10 and interior seating nipple 18, tighten screw thread, install steady nail；
(16) pressure-transmitting joint 7 and outer working tube 16 in connection, tighten screw thread, install steady nail；
(17) the lock set ring set 12 on main piston 10；
(18) the lower endoporus of pressure-transmitting joint 17 and the seal of outer surface are installed；
(19) plug 4 is installed in the drawing position on lower pressure-transmitting joint 17, tightens screw thread；
(20) active lock ring set 12, installs lock ring 15, enters groove；
(21) installed part stop screw 13 and shear pin 14；
(22) connection outer working tube 16 and lower pressure-transmitting joint 17.Following steps are performed as needed；
(23) seal of the endoporus of top connection 1 is installed；
(24) connection tieback seating nipple 2 and top connection 1, tighten screw thread, install steady nail；
(25) connection tieback seating nipple 2 and tieback sub 5, install steady nail.
The operation procedure of the present invention, the present invention and the process of going into the well of water injection well flow string are illustrated by order from bottom to up：
(1) by a 1/4 〞 liquid controling pipe line through the outer wall of outer working tube 16 hole and groove, and with lower pressure-transmitting joint 17
Lower oil circuit interface connection；
(2) another 1/4 〞 liquid controling pipe line is connected with the upper oil circuit interface in upper pressure-transmitting joint 7；
(3) technological design tripping in bottom water injection well flow string is pressed；
(4) it is connected with auxiliary short circuit with tieback sub 5, slings the present invention；
(5) interior seating nipple 18 is connected with bottom water injection well flow string, transfers tubing string；
(6) placed at hung drum 6 and sit card, unload auxiliary short circuit；
(7) the bottom screw thread of tieback seating nipple 2 is connected with tieback sub 5, transfers tubing string；
(8) top water injection well flow string is connected with top connection 1, transfers tubing string, sit well head；
(9) on ground, two 1/4 〞 liquid controling pipe lines is connected with hydraulic oil pumping system, fulfiled assignment.
The operation principle of the present invention：
(1) during the present invention enters well, the inner surface of lock ring 15 holds the annular groove of the lower end of main piston 10 tightly, lock ring 15
Outer surface is covered 12 constraint by lock ring；Shear pin 14 limits moving up and down for lock ring set 12, the limitation lock ring of stop screw 13 set 12
Rotation.So the present invention is locked in elongation state all the time during entering well.
(2) after the present invention transfers to design attitude, connect by the upper oil circuit in the upward pressure-transmitting joint 7 of 1/4 〞 liquid controling pipe lines
Mouth injection hydraulic oil, hydraulic oil promotes unblock piston to block up 9 and unlock piston 11 and moved downward, enter into the epicoele of main piston 10
And promote lock ring to cover 12 and cut shear pin 14, lock ring set 12 is moved down, until lock ring 15 loses outer table constraint, into lock ring set 12
Endoporus, now the present invention unlock, can freely be lifted or descending.
(3) hydraulic oil is injected by the lower oil circuit interface in the downward pressure-transmitting joint 17 of 1/4 〞 liquid controling pipe lines, passes through lower pressure transmission
The annular space of joint 17 and interior seating nipple 18, hydraulic oil enters the cavity of resorption of main piston 10, promotes main piston 10 and interior seating nipple
18 move up, and drive bottom flow string to be lifted up.
(4) hydraulic oil is injected by the upper oil circuit interface in the upward pressure-transmitting joint 7 of 1/4 〞 liquid controling pipe lines, hydraulic oil enters upper
The epicoele of pressure-transmitting joint 7, promotes main piston 10, moment of torsion seating nipple 3 to be moved down with interior seating nipple 18, promotes bottom flow string
It is descending.
(5) straight trough of the straight trough of the outer surface of moment of torsion seating nipple 3 and the upper inner surface of pressure-transmitting joint 7 together constitutes feather key
Sliding rail.In whole strokes of the upstream or downstream of main piston 10, feather key 8 on sliding rail, limits torsion all the time
The relative rotation of square seating nipple 3 and upper pressure-transmitting joint 7, so as to limit the relative rotation of top connection 1 and interior seating nipple 18, is realized
The function of transmitting torque in whole course of the present invention.
Although the function and the course of work of the present invention are described above in conjunction with accompanying drawing, the invention is not limited in
Above-mentioned concrete function and the course of work, above-mentioned embodiment are only schematical, rather than restricted, ability
The those of ordinary skill in domain is not departing from present inventive concept and scope of the claimed protection situation under the enlightenment of the present invention
Under, many forms can also be made, these are belonged within the protection of the present invention.
Claims (5)
1. a kind of multi-functional tubing string lifting device, it is characterized in that, by the tieback module, bearing torque module, locking module being connected with each other
Constituted with hoisting module；
The tieback module includes top connection (1), and top connection (1) bottom is connected with tieback seating nipple (2), the tieback work
Make cylinder (2) lower outside and be connected with tieback sub (5), tieback sub (5) lower inside is connected with hung drum (6)；
The bearing torque module includes being connected to the upper pressure-transmitting joint (7) of the hung drum (6) lower outside, the upper pressure-transmitting joint
(7), it is provided with hung drum (6), tieback seating nipple (2) in the middle part of moment of torsion seating nipple (3), moment of torsion seating nipple (3) outer surface
Six axial straight troughs are evenly distributed with, upper pressure-transmitting joint (7) inner surface setting has straight with moment of torsion seating nipple (3) outer surface
Feather key (8) is provided with the one-to-one straight trough of groove, the straight trough；The side wall of the upper pressure-transmitting joint (7) is provided with one
The through hole axially penetrated through, and outer surface top is provided with a groove；
The locking module includes being connected to the main piston (10) of moment of torsion seating nipple (3) lower outside, the main piston
(10) outside middle and upper part is provided with the annular protrusion of integrative-structure, the annular protrusion and is evenly distributed with four axially extending bores,
Unblock piston is axially provided with the through hole and blocks up (9) and unblock piston (11), main piston (10) bottom is arranged with lock ring
Cover (12)；Lock ring set (12) side wall is evenly arranged with the middle part of axially extending bore, inner surface and is provided with annular groove, and bottom
Footpath is more than upper end internal diameter；
The hoisting module includes being connected to the interior seating nipple (18) of the main piston (10) lower inner surface, the interior seating nipple
(18) outer surface is arranged with the outside of lower pressure-transmitting joint (17), the lower pressure-transmitting joint (17) and is connected with outer working tube (16), described
Outer working tube (16) top is fixedly connected with the upper pressure-transmitting joint (7)；The external diameter of lower pressure-transmitting joint (17) upper end is small
In lower outer diameter, internal diameter is more than lower inner diameter, is provided with the stop screw into through hole positioned at lock ring set (12) side-wall shaft
, and upper end is fixedly installed between the lock ring set (12) and main piston (10) by shear pin (14) and lock ring (15) (13)；
Lower pressure-transmitting joint (17) outer surface sets fluted, and groove bottom is provided with the through hole of the band plug (4) vertical with axis,
The inner side lower wall of the groove is provided with the circular hole into 9 ° of angles with axis, and the circular hole is connected with lower side through hole.
2. multi-functional tubing string lifting device according to claim 1, it is characterized in that, in the middle part of the wall of tieback sub (5) side
It is provided with through hole, through hole and is provided with plug (4).
3. multi-functional tubing string lifting device according to claim 1, it is characterized in that, at the top of the upper pressure-transmitting joint (7)
It is even to be provided with the groove that section is triangle.
4. multi-functional tubing string lifting device according to claim 1, it is characterized in that, it is logical on the wall of main piston (10) side
Internal surface of hole top is provided with screw thread, and middle part is smooth, cylindrical peripheral surface, and the aperture of bottom is small compared with the aperture at top and middle part, described logical
The inwall in hole is provided with an axial rectangular channel.
5. multi-functional tubing string lifting device according to claim 1, it is characterized in that, set in the middle part of the outer working tube (16)
Protrusion side wall for eccentric structure, and eccentric structure is provided with a vertical groove.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556728.7A CN105239943B (en) | 2015-09-02 | 2015-09-02 | Multi-functional tubing string lifting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510556728.7A CN105239943B (en) | 2015-09-02 | 2015-09-02 | Multi-functional tubing string lifting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105239943A CN105239943A (en) | 2016-01-13 |
| CN105239943B true CN105239943B (en) | 2017-10-17 |
Family
ID=55037737
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510556728.7A Expired - Fee Related CN105239943B (en) | 2015-09-02 | 2015-09-02 | Multi-functional tubing string lifting device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105239943B (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4832128A (en) * | 1986-10-17 | 1989-05-23 | Shell Pipe Line Corporation | Wellhead assembly for injection wells |
| US6367552B1 (en) * | 1999-11-30 | 2002-04-09 | Halliburton Energy Services, Inc. | Hydraulically metered travel joint |
| CN202338261U (en) * | 2011-10-17 | 2012-07-18 | 中国石油天然气股份有限公司 | Repeated oil pipe plug |
-
2015
- 2015-09-02 CN CN201510556728.7A patent/CN105239943B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4832128A (en) * | 1986-10-17 | 1989-05-23 | Shell Pipe Line Corporation | Wellhead assembly for injection wells |
| US6367552B1 (en) * | 1999-11-30 | 2002-04-09 | Halliburton Energy Services, Inc. | Hydraulically metered travel joint |
| CN202338261U (en) * | 2011-10-17 | 2012-07-18 | 中国石油天然气股份有限公司 | Repeated oil pipe plug |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105239943A (en) | 2016-01-13 |
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