CN106593341A - Hydraulic type salvage tool for restrictors and operating method thereof - Google Patents
Hydraulic type salvage tool for restrictors and operating method thereof Download PDFInfo
- Publication number
- CN106593341A CN106593341A CN201611206240.2A CN201611206240A CN106593341A CN 106593341 A CN106593341 A CN 106593341A CN 201611206240 A CN201611206240 A CN 201611206240A CN 106593341 A CN106593341 A CN 106593341A
- Authority
- CN
- China
- Prior art keywords
- fishing tool
- piston
- reducer
- hydraulic
- fishing
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B31/00—Fishing for or freeing objects in boreholes or wells
- E21B31/12—Grappling tools, e.g. tongs or grabs
Abstract
The invention discloses a hydraulic type salvage tool for restrictors and an operating method thereof. The hydraulic type salvage tool comprises a salvage mechanism; a hydraulic mechanism and a liquid storing mechanism are connected to the upper end of the salvage mechanism in sequence, the hydraulic mechanism comprises a piston, an ejector rob, a hydraulic cylinder and a connecting seat, and the piston is connected to the upper end of the ejector rod; the ejector rod is arranged in the hydraulic cylinder, the piston makes contact with the inner side of the hydraulic cylinder, and the connecting seat is connected to the inner side of the bottom of the hydraulic cylinder; the connecting seat makes contact with the outer side of the ejector rod, and the liquid storing mechanism comprises an upper connector, a piston rod, a nut, an outer barrel and a check valve; the upper connector is connected to the upper end of the piston rod, the nut is connected with the outer side of the piston rod in a sleeving mode, and the piston rod is arranged in the outer barrel; and the nut is connected with the upper end of the outer barrel, and the check valve is connected between the outer barrel and the hydraulic cylinder. According to the hydraulic type salvage tool for the restrictors and the operating method thereof, the problem that the current salvage success rate of downhole restrictors is low is solved, and the technological and economical salvage requirements for safety, reliability and low cost in restrictor salvage under a gas well are met.
Description
Technical field
The present invention relates to underground operation tool, and in particular to a kind of hydraulic pressure throttler fishing tool and its operational approach.
Background technology
At present, downhole choke technology has become one of low pressure, key technology of low yield gas field development, and gas well is gone into operation the initial stage
It is commonly used, with low pressure collection critical function.Can reduce low pressure, gas stringer on the ground of initial stage of development with expense up to millions of
Unit, is low pressure, the important means of low yield gas field economical and effective exploitation.Therefore obtain extensively at low pressure, low yield gas field development initial stage
Using.
But shaked out due to down-hole, fouling, the reason such as corrosion, part well exist steel wire salvaging underground throttle device difficulty it is big, into
The low problem of power.The timely salvaging of underground throttle device can not be such as realized, being then likely to result in part low pressure water-producing gas well cannot be real
The water pumping gas production measures such as bubble row, speed tubing string, plunger lift are applied, is caused gas well to yield poorly or is stopped well.And be finally by reducer
Take out, need kill-job to play the measures such as tubing string or with pressure tubing string, and these measures not only somewhat expensive, also exist bit freezing and
Higher well control safety risk.Therefore, it is badly in need of a kind of deblocking reliability, give up reliable low cost, high reliability in production scene
Underground restrictor fishing tool.
The content of the invention
The purpose of the present invention is to overcome prior art high cost and the not high problem of fishing success ratio.
For this purpose, the invention provides a kind of hydraulic pressure throttler fishing tool and its operational approach, including salvaging mechanism, institute
State salvaging mechanism upper end and be connected with hydraulic mechanism and liquid storage mechanism in turn, the hydraulic mechanism includes piston, push rod, fluid cylinder and company
Joint chair, the piston is connected to push rod upper end, push rod loaded in fluid cylinder, piston and fluid cylinder interior side contacts, the connecting seat connection
In fluid cylinder bottom inside, and connecting seat and push rod contact outside, the liquid storage mechanism includes top connection, piston rod, nut, outer tube
And ball-and-seat, the top connection is connected to piston rod upper end, and nut is socketed on piston rod outside, and the piston rod is installed on outer tube
It is interior, and nut is connected with outer tube upper end, the ball-and-seat is connected between outer tube and fluid cylinder.
The top connection is fixed with piston rod by pin, and the nut is fixed with outer tube by pin.
The outer tube upper side wall is provided with passage one, and the side wall of fluid cylinder lower end is provided with passage two.
There is sealing ring in the piston outside.
The connecting seat and fluid cylinder and mandrel are all fixed by pin.
The salvaging mechanism includes spacer sleeve, spring, fixed cover, mandrel, shear pin, Rectangular Spring, contiguous block, card
Pawl, locking set, the spacer sleeve and mandrel are connected to the outside and inner side of connecting seat lower end, and mandrel is placed on outside push rod bottom
, there are spring and fixed cover in side between the mandrel and spacer sleeve, fixed cover is fixed with mandrel by shear pin, and spring is compressed
It is placed between fixed cover and connecting seat, fixed cover outside is cased with Rectangular Spring, and Rectangular Spring is located at spacer sleeve lower section, the core
Axle lower end outside limited location step, is equipped with contiguous block on limited step, space is left between contiguous block and fixed cover, outside contiguous block
Side is provided with projection, and claw upper end is provided with circular hole, and the projection of contiguous block is placed in the circular hole of claw, and claw is placed under Rectangular Spring
Side, claw is embedded in locking set.
The operational approach of this hydraulic pressure throttler fishing tool, comprises the steps：
Step 1）Assembling fishing tool：Liquid storage mechanism, hydraulic mechanism and salvaging mechanism have been sequentially connected, fishing tool has been constituted, and
Hydraulic oil is injected in outer tube；
Step 2）Input fishing tool：To be entered under fishing tool lower going-into-well under this by steel wire or well logging armored cable, arrived
Up to after reducer top, fishing tool is quickly transferred, then slowly above carry fishing tool, when now upper lifting force is more than hanging now
During weight, illustrate that fishing tool has caught reducer fishing neck；
Step 3）Deblocking reducer：After catching reducer fishing neck, above carry fishing tool and quickly transfer, piston rod extruding outer tube
Interior hydraulic oil is moved down, and ball-and-seat is opened, and hydraulic oil is entered in fluid cylinder, and under the pressure effect of hydraulic oil, piston is moved down,
And driving push rod to move down, push rod compression throttling device center-pole forces reducer packing element to unseal；
Step 4）Above carry fishing tool and be proposed that reducer.
The step 3）In, when reducer deblocking failure, by jarring upwards or downward jarring, give up so that shearing
Pin disconnects, and spring force release, the elastic force of spring is more than the elastic force of Rectangular Spring, and fixed cover is moved down, and jarring contiguous block is forced
Claw departs from locking set, and claw is opened, and unclamps reducer fishing neck, now can be taken off fishing tool.
Beneficial effects of the present invention：
（1）This hydraulic pressure throttler fishing tool and its operational approach simple structure of the present invention, operational approach is easy, passes through
Two-way the giving up that upwards jarring is given up or jarring downwards is given up solves the problems, such as that existing underground throttle device fishing success ratio is not high,
Safe and reliable, the inexpensive fishing operation and cost-effectiveness requirement required during gas field underground throttle device is salvaged can be met.
（2）This hydraulic pressure throttler fishing tool of the present invention fixes top connection and piston rod by pin, by pin
Nail hold-doun nut and outer tube, make structure connection reliably secure.
（3）The present invention this hydraulic pressure throttler fishing tool by being provided with passage one on outer tube upper side wall,
The side wall of fluid cylinder lower end is provided with passage two, it is to avoid instrument builds the pressure in running, it is ensured that salvaging process is normally carried out.
（4）This hydraulic pressure throttler fishing tool of the present invention is prevented in fluid cylinder by being provided with sealing ring on the outside of piston
The hydraulic pressure oil seepage above piston.
（5）This hydraulic pressure throttler fishing tool of the present invention is protected by pin fixed connecting base and fluid cylinder and mandrel
The stable connection of card fluid cylinder and mandrel.
（6）This hydraulic pressure throttler fishing tool salvaging mechanism of the present invention is used to capture reducer, mandrel and interval
Set is connected respectively with connecting seat, and salvaging mechanism is integrally formed with hydraulic mechanism, and fixation is placed between mandrel and spacer sleeve, and solid
Fixed set is fixed with mandrel by shear pin, space is left between fixed cover and contiguous block, when fishing tool is transferred, when claw connects
Reducer fishing neck is contacted, claw is moved up by reducer thrust upwards, can avoided by the buffering of Rectangular Spring
Instrument is damaged because impacting Dipeptiven big, claw and contiguous block are above moved together, are no longer moved when contiguous block encounters fixed cover, now
Claw is subject to the thrust of top to block reducer fishing neck, completes grasping movement, and this simple structure, success rate is higher.
（7）The operational approach of this hydraulic pressure throttler fishing tool of the present invention is led to when when reducer deblocking failure
Jarring upwards or downward jarring are crossed, is given up so that shear pin disconnects, spring force release, the elastic force of spring is more than rectangle bullet
The elastic force of spring, fixed cover is moved down, jarring contiguous block, forces claw to depart from locking set, and claw is opened, and unclamps reducer fishing neck,
Now can be taken off fishing tool, it is to avoid reducer is salvaged after failure, and fishing tool can take out affects subsequent job.
Description of the drawings
Fig. 1 is the hydraulic pressure throttler fishing tool structural representation of the present invention.
Description of the drawings：1st, top connection；2nd, piston rod；3rd, nut；4th, outer tube；5th, check valve；6th, piston；7th, push rod；8th, oil
Cylinder；9th, connecting seat；10th, spring；11st, spacer sleeve；12nd, fixed cover；13rd, mandrel；14th, shear pin；15th, Rectangular Spring；16th, even
Connect block；17th, claw；18th, locking set；19th, passage one；20th, passage two.
Specific embodiment
Below in conjunction with the accompanying drawings the present invention is described in further detail with specific embodiment：
Embodiment 1：
In order to overcome prior art high cost and the not high problem of fishing success ratio, present embodiments provide a kind of as shown in Figure 1
Hydraulic pressure throttler fishing tool, including salvaging mechanism, the salvaging mechanism upper end is connected with hydraulic mechanism and liquid storage in turn
Mechanism, the hydraulic mechanism includes piston 6, push rod 7, fluid cylinder 8 and connecting seat 9, and the piston 6 is connected to the upper end of push rod 7, push rod
7 loaded in fluid cylinder 8, piston 6 and the interior side contacts of fluid cylinder 8, and the connecting seat 9 is connected to the bottom inside of fluid cylinder 8, and connecting seat 9 with
The contact outside of push rod 7, the liquid storage mechanism includes top connection 1, piston rod 2, nut 3, outer tube 4 and ball-and-seat 5, the top connection
1 is connected to the upper end of piston rod 2, and nut 3 is socketed on the outside of piston rod 2, and the piston rod 2 is installed in outer tube 4, and nut 3 with
The upper end of outer tube 4 connects, and the ball-and-seat 5 is connected between outer tube 4 and fluid cylinder 8.
The operational approach of this hydraulic pressure throttler fishing tool of the present invention, comprises the steps：
Step 1）Assembling fishing tool：Liquid storage mechanism, hydraulic mechanism and salvaging mechanism have been sequentially connected, fishing tool has been constituted, and
Hydraulic oil is injected in outer tube 4；
Step 2）Input fishing tool：To be entered under fishing tool lower going-into-well under this by steel wire or well logging armored cable, arrived
Up to after reducer top, fishing tool is quickly transferred, then slowly above carry fishing tool, when now upper lifting force is more than hanging now
During weight, illustrate that fishing tool has caught reducer fishing neck；
Step 3）Deblocking reducer：After catching reducer fishing neck, above carry fishing tool and quickly transfer, piston rod 2 extrudes outer
Cylinder 4 in hydraulic oil move down, ball-and-seat 5 is opened, hydraulic oil enter fluid cylinder 8 in, hydraulic oil pressure effect under, piston 6 to
Lower movement, and drive push rod 7 to move down, the compression throttling device center-pole of push rod 7 forces reducer packing element to unseal；
Step 4）Above carry fishing tool and be proposed that reducer.
This hydraulic pressure throttler fishing tool simple structure of the present invention, operational approach is easy, is lost by jarring upwards
Two-way the giving up that handss or downward jarring are given up solves the problems, such as that existing underground throttle device fishing success ratio is not high, can meet gas field
Safe and reliable, inexpensive fishing operation and cost-effectiveness requirement that underground throttle device is required in salvaging.
Embodiment 2：
On the basis of embodiment 1, a kind of hydraulic pressure throttler fishing tool as depicted is present embodiments provided, in order that
Structure connection is reliably secure, and the top connection 1 is fixed with piston rod 2 by pin, and the nut 3 is solid by pin with outer tube 4
It is fixed.
In order to avoid instrument builds the pressure in running, the upper side wall of the outer tube 4 is provided with passage 1, fluid cylinder 8
The side wall of lower end is provided with passage 2 20, it is ensured that salvaging process is normally carried out.
There is sealing ring to prevent the hydraulic pressure oil seepage positioned at the top of piston 6 in fluid cylinder 8, the outside of the piston 6.
In order to ensure the stable connection of fluid cylinder 8 and mandrel 13, the connecting seat 9 and fluid cylinder 8 and mandrel 13 all pass through pin
It is fixed.
Embodiment 3：
On the basis of embodiment 2, a kind of hydraulic pressure throttler fishing tool as shown in Figure 1 is present embodiments provided, it is described
Salvaging mechanism includes spacer sleeve 11, spring 10, fixed cover 12, mandrel 13, shear pin 14, Rectangular Spring 15, contiguous block 16, card
Pawl 17, locking set 18, the spacer sleeve 11 and mandrel 13 are connected to the outside and inner side of the lower end of connecting seat 9,13 sets of mandrel
In the lower outside of push rod 7, there are spring 10 and fixed cover 12 between the mandrel 13 and spacer sleeve 11, fixed cover 12 leads to mandrel 13
Cross shear pin 14 to fix, spring 10 is placed between fixed cover 12 and connecting seat 9 by compression, the outside of fixed cover 12 is cased with rectangle bullet
Spring 15, and Rectangular Spring 15 is located at the lower section of spacer sleeve 11, the lower end outside limited location step of the mandrel 13 is equipped with limited step
Contiguous block 16, leaves space between contiguous block 16 and fixed cover 12, the outside of contiguous block 16 is provided with projection, and the upper end of claw 17 is provided with circle
Hole, the projection of contiguous block 16 is placed in the circular hole of claw 17, and claw 17 is placed in the lower section of Rectangular Spring 15, and claw 17 is embedded in locking set
In 18.
Salvaging mechanism is used to capture reducer, and mandrel 13 and spacer sleeve 11 are connected respectively with connecting seat 9, salvaging mechanism and liquid
Press is integrally constituted, and fixed cover 12 is placed between mandrel 13 and spacer sleeve 11, and fixed cover 12 passes through shear pin with mandrel 13
Nail 14 is fixed, and space is left between fixed cover 12 and contiguous block 16, when fishing tool is transferred, is beaten when claw 17 touches reducer
Neck is dragged for, claw 17 is moved up by reducer thrust upwards, can avoided because of impulsive force by the buffering of Rectangular Spring 15
Instrument, claw 17 and the upper shifting together of contiguous block 16 are damaged very much greatly, are no longer moved when contiguous block 16 encounters fixed cover 12, now
Claw is subject to the thrust of top to block reducer fishing neck, completes grasping movement, and this simple structure, success rate is higher.
Further, when reducer deblocking failure, by jarring upwards or downward jarring, give up so that shear pin
14 disconnect, and the elastic force of spring 10 release, the elastic force of spring 10 is more than the elastic force of Rectangular Spring 15, and fixed cover 12 is moved down, jarring connection
Block 16, forces claw 17 to depart from locking set 18, and claw 17 is opened, and unclamps reducer fishing neck, now can be taken off fishing tool,
Reducer is avoided to salvage after failure, fishing tool can take out affects subsequent job.
Exemplified as above is only the illustration to the present invention, does not constitute the restriction to protection scope of the present invention, all
It is that design same or analogous with the present invention is belonged within protection scope of the present invention.
Claims (8)
1. a kind of hydraulic pressure throttler fishing tool, including salvaging mechanism, it is characterised in that：The salvaging mechanism upper end connects successively
Hydraulic mechanism and liquid storage mechanism are connected to, the hydraulic mechanism includes piston（6）, push rod（7）, fluid cylinder（8）And connecting seat（9）, institute
State piston（6）It is connected to push rod（7）Upper end, push rod（7）Loaded on fluid cylinder（8）It is interior, piston（6）With fluid cylinder（8）Interior side contacts, it is described
Connecting seat（9）It is connected to fluid cylinder（8）Bottom inside, and connecting seat（9）With push rod（7）Contact outside, the liquid storage mechanism includes
Top connection（1）, piston rod（2）, nut（3）, outer tube（4）And ball-and-seat（5）, the top connection（1）It is connected to piston rod（2）On
End, nut（3）It is socketed on piston rod（2）Outside, the piston rod（2）It is installed on outer tube（4）It is interior, and nut（3）With outer tube（4）
Upper end connects, the ball-and-seat（5）It is connected to outer tube（4）With fluid cylinder（8）Between.
2. a kind of hydraulic pressure throttler fishing tool as claimed in claim 1, it is characterised in that：The top connection（1）With work
Stopper rod（2）Fixed by pin, the nut（3）With outer tube（4）Fixed by pin.
3. a kind of hydraulic pressure throttler fishing tool as claimed in claim 1, it is characterised in that：The outer tube（4）Upper side
Wall is provided with passage one（19）, fluid cylinder（8）The side wall of lower end is provided with passage two（20）.
4. a kind of hydraulic pressure throttler fishing tool as claimed in claim 1, it is characterised in that：The piston（6）Outside has
Sealing ring.
5. a kind of hydraulic pressure throttler fishing tool as claimed in claim 1, it is characterised in that：The connecting seat（9）With liquid
Cylinder（8）And mandrel（13）All fixed by pin.
6. a kind of hydraulic pressure throttler fishing tool as claimed in claim 1, it is characterised in that：Between the salvaging mechanism includes
Spacer（11）, spring（10）, fixed cover（12）, mandrel（13）, shear pin（14）, Rectangular Spring（15）, contiguous block（16）, card
Pawl（17）, locking set（18）, the spacer sleeve（11）And mandrel（13）It is connected to connecting seat（9）The outside of lower end and interior
Side, mandrel（13）It is placed on push rod（7）Lower outside, the mandrel（13）With spacer sleeve（11）Between have spring（10）And fixed cover
（12）, fixed cover（12）With mandrel（13）By shear pin（14）It is fixed, spring（10）Fixed cover is placed in by compression（12）With
Connecting seat（9）Between, fixed cover（12）Outside is cased with Rectangular Spring（15）, and Rectangular Spring（15）Positioned at spacer sleeve（11）Under
Side, mandrel（13）Lower end outside limited location step, is equipped with contiguous block on limited step（16）, contiguous block（16）Outside is provided with convex
Rise, claw（17）Upper end is provided with circular hole, contiguous block（16）Projection be placed in claw（17）Circular hole in, claw（17）It is embedded in locking
Set（18）It is interior.
7. a kind of operational approach of hydraulic pressure throttler fishing tool, it is characterised in that：Comprise the steps：
Step 1）Assembling fishing tool：Liquid storage mechanism, hydraulic mechanism and salvaging mechanism have been sequentially connected, fishing tool has been constituted, and
To outer tube（4）Middle injection hydraulic oil；
Step 2）Input fishing tool：To be entered under fishing tool lower going-into-well under this by steel wire or well logging armored cable, arrived
Up to after reducer top, fishing tool is quickly transferred, then slowly above carry fishing tool, when now upper lifting force is more than hanging now
During weight, illustrate that fishing tool has caught reducer fishing neck；
Step 3）Deblocking reducer：After catching reducer fishing neck, above carry fishing tool and quickly transfer, piston rod（2）Extruding
Outer tube（4）Interior hydraulic oil is moved down, ball-and-seat（5）Open, hydraulic oil enters fluid cylinder（8）It is interior, under the pressure effect of hydraulic oil,
Piston（6）Move down, and drive push rod（7）Move down, push rod（7）Compression throttling device center-pole forces reducer packing element to unseal；
Step 4）Above carry fishing tool and be proposed that reducer.
8. a kind of operational approach of hydraulic pressure throttler fishing tool as claimed in claim 7, it is characterised in that：The step
3）In, when reducer deblocking failure, by jarring upwards or downward jarring, give up so that shear pin（14）Disconnect, spring
（10）Elastic force discharges, spring（10）Elastic force be more than Rectangular Spring（15）Elastic force, fixed cover（12）Move down, jarring contiguous block
（16）, force claw（17）Depart from locking set（18）, claw（17）Open, unclamp reducer fishing neck, now can be taken off beating
Fishing combined tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206240.2A CN106593341B (en) | 2016-12-23 | 2016-12-23 | A kind of hydraulic pressure throttler fishing tool and its operating method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206240.2A CN106593341B (en) | 2016-12-23 | 2016-12-23 | A kind of hydraulic pressure throttler fishing tool and its operating method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593341A true CN106593341A (en) | 2017-04-26 |
| CN106593341B CN106593341B (en) | 2019-01-18 |
Family
ID=58603461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201611206240.2A Active CN106593341B (en) | 2016-12-23 | 2016-12-23 | A kind of hydraulic pressure throttler fishing tool and its operating method |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593341B (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107676054A (en) * | 2017-10-25 | 2018-02-09 | 中国石油天然气股份有限公司 | A kind of underground restrictor fishing tool and operating method |
| CN107780862A (en) * | 2017-09-22 | 2018-03-09 | 中国石油集团西部钻探工程有限公司 | Underground throttle device fishing device |
| CN111622698A (en) * | 2020-05-19 | 2020-09-04 | 中国石油天然气股份有限公司 | Hydraulic throwing tool for underground restrictor and use method thereof |
| CN111655964A (en) * | 2018-02-02 | 2020-09-11 | J.H.弗莱彻公司 | Quick release coupling for drilling and related method |
| CN111734336A (en) * | 2020-06-01 | 2020-10-02 | 中国石油天然气股份有限公司 | Electric hydraulic restrictor fishing tool and fishing method thereof |
| CN111946306A (en) * | 2020-08-21 | 2020-11-17 | 中国石油天然气股份有限公司 | Process method of hydraulic deblocking restrictor |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2856389Y (en) * | 2005-11-02 | 2007-01-10 | 辽河石油勘探局 | Multifunction hydraulic fisher for small dropped article |
| CN2908767Y (en) * | 2005-07-21 | 2007-06-06 | 崔朝轩 | Hydraulic jar |
| CN201184157Y (en) * | 2008-04-08 | 2009-01-21 | 中国石化集团江苏石油勘探局 | Oil well hydraulic unfreezing machine |
| CN201517384U (en) * | 2009-10-29 | 2010-06-30 | 重庆望江工业有限公司 | Full hydraulic drilling jar |
| CN201778712U (en) * | 2010-04-30 | 2011-03-30 | 中国石油天然气股份有限公司 | Special fishing tool of slip-type underground throttleer |
| US20130014958A1 (en) * | 2011-07-13 | 2013-01-17 | William Jani | Retrievable stimulation frac (rsf) plug |
| CN203476271U (en) * | 2013-09-16 | 2014-03-12 | 慕武 | Ground hydraulic drilling jar for deep well and extra-deep well |
-
2016
- 2016-12-23 CN CN201611206240.2A patent/CN106593341B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2908767Y (en) * | 2005-07-21 | 2007-06-06 | 崔朝轩 | Hydraulic jar |
| CN2856389Y (en) * | 2005-11-02 | 2007-01-10 | 辽河石油勘探局 | Multifunction hydraulic fisher for small dropped article |
| CN201184157Y (en) * | 2008-04-08 | 2009-01-21 | 中国石化集团江苏石油勘探局 | Oil well hydraulic unfreezing machine |
| CN201517384U (en) * | 2009-10-29 | 2010-06-30 | 重庆望江工业有限公司 | Full hydraulic drilling jar |
| CN201778712U (en) * | 2010-04-30 | 2011-03-30 | 中国石油天然气股份有限公司 | Special fishing tool of slip-type underground throttleer |
| US20130014958A1 (en) * | 2011-07-13 | 2013-01-17 | William Jani | Retrievable stimulation frac (rsf) plug |
| CN203476271U (en) * | 2013-09-16 | 2014-03-12 | 慕武 | Ground hydraulic drilling jar for deep well and extra-deep well |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780862A (en) * | 2017-09-22 | 2018-03-09 | 中国石油集团西部钻探工程有限公司 | Underground throttle device fishing device |
| CN107676054A (en) * | 2017-10-25 | 2018-02-09 | 中国石油天然气股份有限公司 | A kind of underground restrictor fishing tool and operating method |
| CN107676054B (en) * | 2017-10-25 | 2023-11-28 | 中国石油天然气股份有限公司 | Downhole choke fishing tool and operation method |
| CN111655964A (en) * | 2018-02-02 | 2020-09-11 | J.H.弗莱彻公司 | Quick release coupling for drilling and related method |
| CN111622698A (en) * | 2020-05-19 | 2020-09-04 | 中国石油天然气股份有限公司 | Hydraulic throwing tool for underground restrictor and use method thereof |
| CN111622698B (en) * | 2020-05-19 | 2024-01-30 | 中国石油天然气股份有限公司 | Downhole choke hydraulic delivery tool and use method thereof |
| CN111734336A (en) * | 2020-06-01 | 2020-10-02 | 中国石油天然气股份有限公司 | Electric hydraulic restrictor fishing tool and fishing method thereof |
| CN111946306A (en) * | 2020-08-21 | 2020-11-17 | 中国石油天然气股份有限公司 | Process method of hydraulic deblocking restrictor |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106593341B (en) | 2019-01-18 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106593341A (en) | Hydraulic type salvage tool for restrictors and operating method thereof | |
| CN106761521A (en) | A kind of mechanical throttle device fishing tool and its operating method | |
| RU2282708C1 (en) | Downhole hydraulic jack for releasing of stuck pipes | |
| CN205689156U (en) | A kind of high-adaptability stress decentralized bidirectional hydraulic drilling jar | |
| DE2552095A1 (en) | METHOD AND DEVICE FOR INSERTING PIPES INTO A PRESSURIZED DRILL HOLE AND FOR EXTRACTING THE SAME | |
| CN104989310B (en) | Horizontal well jarring stuck releasing device and construction method thereof | |
| CN111734336B (en) | Electric hydraulic restrictor fishing tool and fishing method thereof | |
| RU2444607C1 (en) | Bore-hole disconnector | |
| US10450837B2 (en) | Sleeve fracturing assembly, device using the same and method for using the same | |
| CN212803153U (en) | High-strength casing high-pressure bridge plug for horizontal well | |
| CN107780862B (en) | Fishing device for underground throttler | |
| CN112302563B (en) | Ultrashort-clamping-distance water injection sand prevention packer and operation method thereof | |
| CN207568528U (en) | A kind of underground restrictor fishing tool | |
| CN107676054B (en) | Downhole choke fishing tool and operation method | |
| CN110513070B (en) | Flap type downhole oil pipe hydraulic control blowout preventer | |
| CN207795117U (en) | A kind of logging cable salvages the specific purpose tool of underground throttle device | |
| CN112943143B (en) | Hydraulic salvaging pipe column and salvaging method for coiled tubing of downhole choke | |
| CN202510087U (en) | Retrievable subsurface safety valve | |
| CN107724986A (en) | A kind of logging cable salvages the specific purpose tool and operating method of underground throttle device | |
| CN201321827Y (en) | Anti-sticking hydraulic anchor capable of continuous operation | |
| CN211666671U (en) | Collecting ball type adapter | |
| CN211598548U (en) | Coiled tubing well drilling hydraulic control release device | |
| CN2787822Y (en) | Step-by-step releasable packer | |
| CN202249947U (en) | Subsurface safety valve | |
| CN101109375A (en) | Two-stage down-hole pipe pump oil extracting device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |