CN106593341B - Hydraulic restrictor fishing tool and operation method thereof - Google Patents
Hydraulic restrictor fishing tool and operation method thereof Download PDFInfo
- Publication number
- CN106593341B CN106593341B CN201611206240.2A CN201611206240A CN106593341B CN 106593341 B CN106593341 B CN 106593341B CN 201611206240 A CN201611206240 A CN 201611206240A CN 106593341 B CN106593341 B CN 106593341B
- Authority
- CN
- China
- Prior art keywords
- fishing tool
- fishing
- mandril
- hydraulic
- piston
- 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.)
- Active
Links
- 238000000034 method Methods 0.000 title abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 13
- 210000000078 claw Anatomy 0.000 claims description 30
- 239000012530 fluid Substances 0.000 claims description 30
- 238000011017 operating method Methods 0.000 claims description 17
- 125000006850 spacer group Chemical group 0.000 claims description 16
- 239000010720 hydraulic oil Substances 0.000 claims description 14
- 230000006835 compression Effects 0.000 claims description 5
- 238000007906 compression Methods 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 230000000694 effects Effects 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000010009 beating Methods 0.000 claims 1
- 238000002347 injection Methods 0.000 claims 1
- 239000007924 injection Substances 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 3
- 238000011161 development Methods 0.000 description 3
- 230000003139 buffering effect Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007797 corrosion Effects 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008014 freezing Effects 0.000 description 1
- 238000007710 freezing Methods 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK 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
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Marine Sciences & Fisheries (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Fishing Rods (AREA)
- Portable Nailing Machines And Staplers (AREA)
Abstract
The invention discloses a fishing tool of a hydraulic restrictor and an operation method thereof, comprising a fishing mechanism, the upper end of the salvaging mechanism is sequentially connected with a hydraulic mechanism and a liquid storage mechanism, the hydraulic mechanism comprises a piston, a mandril, a hydraulic cylinder and a connecting seat, the piston is connected with the upper end of the mandril, the mandril is arranged in the hydraulic cylinder, the piston is contacted with the inner side of the hydraulic cylinder, the connecting seat is connected with the inner side of the bottom of the hydraulic cylinder, the connecting seat is contacted with the outer side of the ejector rod, the liquid storage mechanism comprises an upper joint, a piston rod, a screw cap, an outer cylinder and a check valve, the upper joint is connected to the upper end of the piston rod, the screw cap is sleeved on the outer side of the piston rod, the piston rod is arranged in the outer cylinder, the screw cap is connected with the upper end of the outer cylinder, the check valve is connected between the outer cylinder and the hydraulic cylinder, the invention solves the problem of low fishing success rate of the existing underground choke, and can meet the requirements of safe, reliable and low-cost fishing technology and economy in fishing of the underground choke in a gas field.
Description
Technical field
The present invention relates to underground operation tools, and in particular to a kind of hydraulic pressure throttler fishing tool and its operating method.
Background technique
Currently, downhole choke technology has become one of low pressure, key technology of low yield gas field development, gas well is gone into operation initial stage
It is commonly used, there is 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
Member is the important means of low pressure, the exploitation of low yield gas field economical and effective.Therefore it is obtained extensively at low pressure, low yield gas field development initial stage
Using.
But underground shakes out, fouling, due to corrosion etc., that there are steel wire salvaging underground throttle device difficulty is big for part well, at
The low problem of power.The timely salvaging that such as can not achieve underground throttle device, then may cause part low pressure water-producing gas well can not be real
The water pumping gas productions measures such as bubble row, speed column, plunger lift are applied, causes gas well yield low or stops well.It and is finally by flow controller
Take out, kill-job needed to play the measures such as tubing string or with pressure tubing string, and these measures not only somewhat expensive, there is also bit freezing and
Higher well control safety risk.Therefore, it is badly in need of that a kind of deblocking is reliable, give up reliable low cost, high reliability in production scene
Underground restrictor fishing tool.
Summary of the invention
The purpose of the present invention is overcome the problems, such as that the prior art is at high cost and fishing success ratio is not high.
For this purpose, the present invention provides a kind of hydraulic pressure throttler fishing tool and its operating method, including salvaging mechanism, institute
It states salvaging mechanism upper end and is connected with hydraulic mechanism and liquid storage mechanism in turn, the hydraulic mechanism includes piston, mandril, fluid cylinder and company
Joint chair, the piston are connected to mandril upper end, and loaded in fluid cylinder, piston and fluid cylinder interior side contacts, the attachment base connect mandril
In fluid cylinder bottom inside, and attachment base and the outer side contacts of mandril, the liquid storage mechanism includes top connection, piston rod, nut, outer cylinder
And ball-and-seat, the top connection are connected to piston rod upper end, nut is socketed on the outside of piston rod, and the piston rod is installed on outer cylinder
It is interior, and nut is connect with outer cylinder upper end, the ball-and-seat is connected between outer cylinder and fluid cylinder.
The top connection and piston rod are fixed by pin, and the nut and outer cylinder are fixed by pin.
Side wall is equipped with venthole one above the outer cylinder, and the side wall of fluid cylinder lower end is equipped with venthole two.
There is sealing ring on the outside of the piston.
The attachment base and fluid cylinder and mandrel are all fixed by pin.
The salvaging mechanism includes spacer sleeve, spring, fixing sleeve, mandrel, shear pin, Rectangular Spring, link block, card
Pawl, locking set, the spacer sleeve and mandrel are connected to the outside and inside of attachment base lower end, and mandrel is placed on outside mandril lower part
There are spring and fixing sleeve in side between the mandrel and spacer sleeve, fixing sleeve and mandrel are fixed by shear pin, and spring is compressed
It is placed between fixing sleeve and attachment base, Rectangular Spring is cased on the outside of fixing sleeve, and Rectangular Spring is located at below spacer sleeve, the core
Axis lower end outside has limited step, and link block is equipped on limited step, there are gap between link block and fixing sleeve, outside link block
Side is equipped with protrusion, and claw upper end is equipped with circular hole, and the protrusion of link block is placed in the circular hole of claw, and claw is placed under Rectangular Spring
Side, claw is in locking set.
The operating method of this hydraulic pressure throttler fishing tool, includes the following steps:
Step 1) assembles fishing tool: being sequentially connected liquid storage mechanism, hydraulic mechanism and salvaging mechanism, composition salvages work
Tool, and hydraulic oil is injected into outer cylinder；
Step 2 puts into fishing tool: by steel wire or well logging armored cable by the tripping in by fishing tool lower going-into-well
Under, after reaching above flow controller, fishing tool is quickly transferred, then slowly above mentions fishing tool, upper lifting force is greater than this when at this time
When suspending weight when, illustrate that fishing tool has caught flow controller fishing neck；
Step 3) unseals flow controller: after catching flow controller fishing neck, above mentioning fishing tool and quickly transfers, piston rod squeezes
Hydraulic oil in outer cylinder moves down, and ball-and-seat is opened, and hydraulic oil enters in fluid cylinder, and under the pressure effect of hydraulic oil, piston is downward
It is mobile, and mandril is driven to move down, mandril compression throttling device center-pole forces flow controller packing element to unseal；
Fishing tool is mentioned in step 4) i.e. it is proposed that flow controller.
It in the step 3), when flow controller unseals failure, by upward jarring or downward jarring, gives up, so that shearing
Pin disconnects, and spring force release, the elastic force of spring is greater than the elastic force of Rectangular Spring, and fixing sleeve moves down, and jarring link block forces
Claw is detached from locking set, and claw is opened, and flow controller fishing neck is unclamped, and can be taken off fishing tool at this time.
Beneficial effects of the present invention:
(1) this hydraulic pressure throttler fishing tool of the invention and its operating method structure are simple, and operating method is easy,
It is given up by upward jarring or jarring downwards is given up two-way gives up that solve existing underground throttle device fishing success ratio not high
Problem can meet safe and reliable, the inexpensive fishing operation and cost-effectiveness requirement required in the salvaging of gas field underground throttle device.
(2) this hydraulic pressure throttler fishing tool of the invention passes through pin by the fixed top connection of pin and piston rod
Hold-doun nut and outer cylinder are followed closely, keeps structure connection reliably secure.
(3) this hydraulic pressure throttler fishing tool of the invention by outer cylinder upper side wall be equipped with venthole one,
The side wall of fluid cylinder lower end is equipped with venthole two, and tool is avoided to build the pressure in the process of running, guarantees that salvaging process is normally carried out.
(4) this hydraulic pressure throttler fishing tool of the invention is prevented in fluid cylinder by being equipped with sealing ring on the outside of piston
Be located at piston above hydraulic oil seepage.
(5) this hydraulic pressure throttler fishing tool of the invention is protected by pin fixed connecting base and fluid cylinder and mandrel
Demonstrate,prove the stable connection of fluid cylinder and mandrel.
(6) this hydraulic pressure throttler fishing tool salvaging mechanism of the invention is for grabbing flow controller, mandrel and interval
Set is connect with attachment base respectively, and salvaging mechanism is integrally formed with hydraulic mechanism, and fixation is placed between mandrel and spacer sleeve, and solid
Fixed set and mandrel are fixed by shear pin, and there are gaps between fixing sleeve and link block, when fishing tool is transferred, when claw connects
Contact flow controller fishing neck, the claw thrust upward by flow controller is moved up, be can be avoided by the buffering of Rectangular Spring
Tool is damaged because impact force is too big, claw and link block move up together, no longer move when link block encounters fixing sleeve, at this time
Claw is blocked flow controller fishing neck by the thrust of top, completes grasping movement, this structure is simple, and success rate is higher.
(7) operating method of this hydraulic pressure throttler fishing tool of the invention is led to when flow controller unseals failure
Upward jarring or downward jarring are crossed, is given up, so that shear pin disconnects, the elastic force of spring force release, spring is greater than rectangle bullet
The elastic force of spring, fixing sleeve move down, jarring link block, and claw is forced to be detached from locking set, and claw is opened, and unclamp flow controller fishing neck,
It can be taken off fishing tool at this time, after avoiding flow controller from salvaging failure, fishing tool, which does not take not Chu Lai, influences subsequent job.
Detailed description of the invention
Fig. 1 is hydraulic pressure throttler fishing tool structural schematic diagram of the invention.
Detailed description of the invention: 1, top connection；2, piston rod；3, nut；4, outer cylinder；5, check valve；6, piston；7, mandril；8, liquid
Cylinder；9, attachment base；10, spring；11, spacer sleeve；12, fixing sleeve；13, mandrel；14, shear pin；15, Rectangular Spring；16, even
Connect block；17, claw；18, locking set；19, venthole one；20, venthole two.
Specific embodiment
Present invention is further described in detail with specific embodiment with reference to the accompanying drawing:
Embodiment 1:
In order to overcome the problems, such as that the prior art is at high cost and fishing success ratio is not high, present embodiments provide a kind of such as Fig. 1
Shown in hydraulic pressure throttler fishing tool, including salvaging mechanism, the salvaging mechanism upper end be connected in turn hydraulic mechanism and
Liquid storage mechanism, the hydraulic mechanism include piston 6, mandril 7, fluid cylinder 8 and attachment base 9, and the piston 6 is connected to 7 upper end of mandril,
For mandril 7 loaded in fluid cylinder 8, piston 6 and 8 interior side contacts of fluid cylinder, the attachment base 9 are connected to 8 bottom inside of fluid cylinder, and attachment base
9 with the outer side contacts of mandril 7, the liquid storage mechanism include top connection 1, piston rod 2, nut 3, outer cylinder 4 and ball-and-seat 5, it is described on
Connector 1 is connected to 2 upper end of piston rod, and nut 3 is socketed on 2 outside of piston rod, and the piston rod 2 is installed in outer cylinder 4, and nut
3 connect with 4 upper end of outer cylinder, and the ball-and-seat 5 is connected between outer cylinder 4 and fluid cylinder 8.
The operating method of this hydraulic pressure throttler fishing tool of the invention, includes the following steps:
Step 1) assembles fishing tool: being sequentially connected liquid storage mechanism, hydraulic mechanism and salvaging mechanism, composition salvages work
Tool, and hydraulic oil is injected into outer cylinder 4；
Step 2 puts into fishing tool: by steel wire or well logging armored cable by the tripping in by fishing tool lower going-into-well
Under, after reaching above flow controller, fishing tool is quickly transferred, then slowly above mentions fishing tool, upper lifting force is greater than this when at this time
When suspending weight when, illustrate that fishing tool has caught flow controller fishing neck；
Step 3) unseals flow controller: after catching flow controller fishing neck, above mentioning fishing tool and quickly transfers, piston rod 2 squeezes
Hydraulic oil in pressure outer cylinder 4 moves down, and ball-and-seat 5 is opened, and hydraulic oil enters in fluid cylinder 8, under the pressure effect of hydraulic oil, piston
6 move down, and mandril 7 is driven to move down, and 7 compression throttling device center-pole of mandril forces flow controller packing element to unseal；
Fishing tool is mentioned in step 4) i.e. it is proposed that flow controller.
This hydraulic pressure throttler fishing tool structure of the invention is simple, and operating method is easy, is lost by upward jarring
Two-way give up that hand 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, the inexpensive fishing operation and cost-effectiveness requirement required in underground throttle device salvaging.
Embodiment 2:
On the basis of embodiment 1, a kind of hydraulic pressure throttler fishing tool as shown in the figure is present embodiments provided, is
Keep structure connection reliably secure, the top connection 1 fixed with piston rod 2 by pin, and the nut 3 and outer cylinder 4 pass through pin
Nail is fixed.
In order to avoid tool builds the pressure in the process of running, the 4 top side wall of outer cylinder is equipped with venthole 1, fluid cylinder 8
The side wall of lower end is equipped with venthole 2 20, guarantees that salvaging process is normally carried out.
The hydraulic oil seepage for being located at the top of piston 6 in fluid cylinder 8 in order to prevent has sealing ring on the outside of the piston 6.
In order to guarantee that the stable connection of fluid cylinder 8 and mandrel 13, the attachment base 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,
The salvaging mechanism includes spacer sleeve 11, spring 10, fixing sleeve 12, mandrel 13, shear pin 14, Rectangular Spring 15, link block
16, claw 17, locking set 18, the spacer sleeve 11 and mandrel 13 are connected to the outside and inside of 9 lower end of attachment base, mandrel
13 are placed on 7 lower outside of mandril, there is spring 10 and fixing sleeve 12, fixing sleeve 12 and mandrel between the mandrel 13 and spacer sleeve 11
13 is fixed by shear pin 14, and spring 10 is placed between fixing sleeve 12 and attachment base 9 by compression, is cased with square on the outside of fixing sleeve 12
Shape spring 15, and Rectangular Spring 15 is located at the lower section of spacer sleeve 11,13 lower end outside of mandrel have a limited step, on limited step
It is equipped with link block 16, there are gap between link block 16 and fixing sleeve 12, protrusion is equipped on the outside of link block 16,17 upper end of claw is set
There is circular hole, the protrusion of link block 16 is placed in the circular hole of claw 17, and claw 17 is placed in 15 lower section of Rectangular Spring, and claw 17 is embedded in lock
Surely in set 18.
Salvaging mechanism is for grabbing flow controller, and mandrel 13 and spacer sleeve 11 are connect with attachment base 9 respectively, salvaging mechanism and liquid
Press is integrally constituted, and fixing sleeve 12 is placed between mandrel 13 and spacer sleeve 11, and fixing sleeve 12 and mandrel 13 pass through shear pin
Nail 14 is fixed, and there are gaps between fixing sleeve 12 and link block 16 beats when fishing tool is transferred when claw 17 touches flow controller
Neck is fished out, the thrust upward by flow controller of claw 17 is moved up, be can be avoided by the buffering of Rectangular Spring 15 because of impact force
Damage tool greatly very much, claw 17 and link block 16 move up together, no longer move when link block 16 encounters fixing sleeve 12, at this time
Claw is blocked flow controller fishing neck by the thrust of top, completes grasping movement, this structure is simple, and success rate is higher.
Further, it when flow controller unseals failure, by upward jarring or downward jarring, gives up, so that shear pin
14 disconnect, and 10 elastic force of spring release, the elastic force of spring 10 is greater than the elastic force of Rectangular Spring 15, and fixing sleeve 12 moves down, jarring connection
Block 16 forces claw 17 to be detached from locking set 18, and claw 17 is opened, and flow controller fishing neck is unclamped, and can be taken off fishing tool at this time,
After avoiding flow controller from salvaging failure, fishing tool, which does not take not Chu Lai, influences subsequent job.
The foregoing examples are only illustrative of the present invention, does not constitute the limitation to protection scope of the present invention, all
It is within being all belonged to the scope of protection of the present invention with the same or similar design of the present invention.
Claims (7)
1. a kind of operating method of hydraulic pressure throttler fishing tool, it is characterised in that: the hydraulic pressure throttler fishing tool, packet
Salvaging mechanism is included, the salvaging mechanism upper end is connected with hydraulic mechanism and liquid storage mechanism in turn, and the hydraulic mechanism includes piston
(6), mandril (7), fluid cylinder (8) and attachment base (9), the piston (6) are connected to mandril (7) upper end, and mandril (7) is loaded on fluid cylinder
(8) in, piston (6) and fluid cylinder (8) interior side contacts, the attachment base (9) are connected to fluid cylinder (8) bottom inside, and attachment base (9)
With mandril (7) outer side contacts, the liquid storage mechanism includes top connection (1), piston rod (2), nut (3), outer cylinder (4) and ball-and-seat
(5), the top connection (1) is connected to piston rod (2) upper end, and nut (3) is socketed on the outside of piston rod (2), the piston rod (2)
It is installed in outer cylinder (4), and nut (3) is connect with outer cylinder (4) upper end, the ball-and-seat (5) is connected to outer cylinder (4) and fluid cylinder
(8) between；
The operating method includes the following steps:
Step 1) assembles fishing tool: it has been sequentially connected liquid storage mechanism, hydraulic mechanism and salvaging mechanism, has formed fishing tool, and
To injection hydraulic oil in outer cylinder (4)；
Step 2 puts into fishing tool: by steel wire or well logging armored cable by under the fishing tool lower going-into-well, reaching throttling
After above device, fishing tool is quickly transferred, then slowly above mentions fishing tool, when upper lifting force is greater than suspending weight at this time at this time,
Illustrate that fishing tool has caught flow controller fishing neck；
Step 3) unseals flow controller: after catching flow controller fishing neck, above mentioning fishing tool and quickly transfers, piston rod (2) squeezes
Hydraulic oil in outer cylinder (4) moves down, and ball-and-seat (5) is opened, and hydraulic oil enters in fluid cylinder (8), under the pressure effect of hydraulic oil,
Piston (6) moves down, and mandril (7) is driven to move down, and mandril (7) compression throttling device center-pole forces flow controller packing element to unseal；
Fishing tool is mentioned in step 4) i.e. it is proposed that flow controller.
2. a kind of operating method of hydraulic pressure throttler fishing tool as described in claim 1, it is characterised in that: connect on described
Head (1) is fixed with piston rod (2) by pin, and the nut (3) is fixed with outer cylinder (4) by pin.
3. a kind of operating method of hydraulic pressure throttler fishing tool as described in claim 1, it is characterised in that: the outer cylinder
(4) top side wall is equipped with venthole one (19), and the side wall of fluid cylinder (8) lower end is equipped with venthole two (20).
4. a kind of operating method of hydraulic pressure throttler fishing tool as described in claim 1, it is characterised in that: the piston
(6) there is sealing ring in outside.
5. a kind of operating method of hydraulic pressure throttler fishing tool as described in claim 1, it is characterised in that: the connection
Seat (9) is all fixed by pin with fluid cylinder (8) and mandrel (13).
6. a kind of operating method of hydraulic pressure throttler fishing tool as described in claim 1, it is characterised in that: the salvaging
Mechanism includes spacer sleeve (11), spring (10), fixing sleeve (12), mandrel (13), shear pin (14), Rectangular Spring (15), connects
Block (16), claw (17), locking set (18) are connect, the spacer sleeve (11) and mandrel (13) are connected to attachment base (9) lower end
Outside and inside, mandrel (13) is placed on mandril (7) lower outside, has spring between the mandrel (13) and spacer sleeve (11)
(10) it is fixed with fixing sleeve (12), fixing sleeve (12) and mandrel (13) by shear pin (14), spring (10) is placed in by compression
Between fixing sleeve (12) and attachment base (9), between fixing sleeve (12) outside is cased with Rectangular Spring (15), and Rectangular Spring (15) is located at
Below spacer (11), mandrel (13) lower end outside has limited step, is equipped on limited step link block (16), and link block (16) is outside
Side is equipped with protrusion, and claw (17) upper end is equipped with circular hole, and the protrusion of link block (16) is placed in the circular hole of claw (17), claw (17)
In locking set (18).
7. a kind of operating method of hydraulic pressure throttler fishing tool as described in claim 1, it is characterised in that: the step
3) it in, when flow controller unseals failure, by upward jarring or downward jarring, gives up, so that shear pin (14) disconnects, spring
(10) elastic force discharges, and the elastic force of spring (10) is greater than the elastic force of Rectangular Spring (15), and fixing sleeve (12) moves down, jarring link block
(16), claw (17) are forced to be detached from locking set (18), claw (17) is opened, and flow controller fishing neck is unclamped, and can be taken off beating at this time
Fishing combined tool.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206240.2A CN106593341B (en) | 2016-12-23 | 2016-12-23 | Hydraulic restrictor fishing tool and operation method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611206240.2A CN106593341B (en) | 2016-12-23 | 2016-12-23 | Hydraulic restrictor fishing tool and operation method thereof |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106593341A CN106593341A (en) | 2017-04-26 |
| CN106593341B true 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 | Hydraulic restrictor fishing tool and operation method thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106593341B (en) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107780862B (en) * | 2017-09-22 | 2023-07-14 | 中国石油天然气集团有限公司 | Fishing device for underground throttler |
| 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 |
| EP3746628B1 (en) * | 2018-02-02 | 2024-04-03 | J.H Fletcher & Co. | Quick-release coupling for drilling and related methods |
| CN111042778B (en) * | 2019-11-26 | 2024-07-19 | 宝鸡瑞林石油机电设备有限责任公司 | Multiple seat seal preset type throttle |
| 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 |
| CN111734336B (en) * | 2020-06-01 | 2022-07-05 | 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 |
| CN112211585B (en) * | 2020-11-18 | 2024-07-09 | 兰西县铭远石油设备制造有限公司 | Pressurized repeatable hydraulic clamping variable-outer-diameter integral long-section tool back-off device |
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 for slip type underground throttler |
| 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 for slip type underground throttler |
| 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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN106593341A (en) | 2017-04-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN106593341B (en) | Hydraulic restrictor fishing tool and operation method thereof | |
| CN106761521B (en) | Fishing tool for mechanical restrictor and operation method of fishing tool | |
| CN212803153U (en) | High-strength casing high-pressure bridge plug for horizontal well | |
| CN205689156U (en) | A kind of high-adaptability stress decentralized bidirectional hydraulic drilling jar | |
| CN101892823A (en) | Method for throwing and fishing downhole choke without steel wire in natural gas well | |
| CN107676054B (en) | Downhole choke fishing tool and operation method | |
| CN203420662U (en) | Small diameter oil pipe plug | |
| CN110847837A (en) | Bidirectional hydraulic resistance type drilling jar | |
| CN104989310A (en) | Horizontal well jarring jam releasing device and construction method thereof | |
| CN107724986B (en) | Special tool for fishing underground throttler by logging cable and operation method | |
| CN207420519U (en) | Underground throttle device fishing device | |
| CN107780862B (en) | Fishing device for underground throttler | |
| CN208981985U (en) | A kind of full well section construction operation device with pressure | |
| CN207568528U (en) | Fishing tool for underground throttler | |
| CN201574726U (en) | Resistance-prevention and pressure-limiting anchoring oil drainage device for oilfields | |
| CN207795117U (en) | Special tool for fishing downhole choke with logging cable | |
| CN103742710B (en) | A kind of replacing valving with pressure | |
| CN202510087U (en) | Retrievable subsurface safety valve | |
| CN110513070B (en) | Flap type downhole oil pipe hydraulic control blowout preventer | |
| CN112943143B (en) | Hydraulic salvaging pipe column and salvaging method for coiled tubing of downhole choke | |
| CN202745781U (en) | Fishing tool for natural gas exploitation underground throttler | |
| CN201321827Y (en) | Anti-sticking hydraulic anchor capable of continuous operation | |
| CN114458226B (en) | Hydraulic pipeline setting type cable passing packer and well completion pipe string using same | |
| CN201184157Y (en) | Oil well hydraulic unfreezing machine | |
| CN202249947U (en) | Subsurface safety valve |
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 |