CN108661586A - A salvage cylinder for coiled tubing - Google Patents
A salvage cylinder for coiled tubing Download PDFInfo
- Publication number
- CN108661586A CN108661586A CN201710204820.6A CN201710204820A CN108661586A CN 108661586 A CN108661586 A CN 108661586A CN 201710204820 A CN201710204820 A CN 201710204820A CN 108661586 A CN108661586 A CN 108661586A
- Authority
- CN
- China
- Prior art keywords
- fishing
- release
- ring
- fishing socket
- slip
- 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
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 claims description 23
- 238000009434 installation Methods 0.000 claims description 14
- 239000007937 lozenge Substances 0.000 claims description 12
- 230000001360 synchronised effect Effects 0.000 claims description 8
- 125000004122 cyclic group Chemical group 0.000 claims description 6
- 241000251468 Actinopterygii Species 0.000 abstract description 38
- 239000012224 working solution Substances 0.000 description 10
- 238000011010 flushing procedure Methods 0.000 description 8
- 238000007789 sealing Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 5
- 238000007599 discharging Methods 0.000 description 4
- 239000000243 solution Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 240000007594 Oryza sativa Species 0.000 description 1
- 235000007164 Oryza sativa Nutrition 0.000 description 1
- 208000002193 Pain Diseases 0.000 description 1
- 238000005553 drilling Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 description 1
- 230000020477 pH reduction Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 235000009566 rice Nutrition 0.000 description 1
- 239000004576 sand Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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
- E21B31/18—Grappling tools, e.g. tongs or grabs gripping externally, e.g. overshot
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)
Abstract
The invention discloses a fishing barrel for a coiled tubing, and relates to the technical field of workover tools adopted in oil fields. The overshot comprises an overshot upper shell, an overshot lower shell and a guide shoe which are sequentially arranged along the axial direction, and the overshot is sequentially arranged inside the overshot from top to bottom: the fishing device comprises a hydraulic driving assembly, a releasing assembly, a fishing slip with an annular structure and a locking ring; the lower end of the release assembly is provided with a wedge-shaped surface, the wedge-shaped surface is connected with the inner side surface of the fishing slip, and the hydraulic drive assembly is used for driving the lower end surface of the release assembly to go deep into the fishing slip and expanding the inner diameter of the fishing slip. Make the release assembly expand the internal diameter of salvaging the slips through the mode of hydraulic drive to effectively release the fish, solved among the prior art with the technical difficulty of coiled tubing complex fishing tool in the existence of release fish.
Description
Technical field
The present invention relates to oil recovery workover tool technical fields, more particularly to a kind of fishing socket for coiled tubing.
Background technology
Coiled tubing is a kind of good tubing of flexibility, and usually a roll coiled tubing is thousands of rice.With conventional oil pipe
It compares, coiled tubing has the characteristics that Operating Pressure, continuously removes, and equipment volume is small, and duty cycle is fast, and cost is also low.
The numerous areas of oilfield exploitation is all made of coiled tubing and replaces conventional oil pipe operation, such as sand washing, wax removal, acidification, salvaging, water squeezing
Using coiled tubing in the operations such as mud, drilling well, scale removal.
Coiled tubing is applied to fishing in the prior art, compared with using conventional oil pipe, coiled tubing eliminates
The process of piecewise connected pipes connects different fishing tools in the end of coiled tubing for different fish types
It is operated under lower going-into-well.Such as when salvaging tubing fish, returnable slip overshot is connected in the end of coiled tubing.
In use, using coiled tubing by under reversible fishing socket lower going-into-well, until at fish, by being pumped into working solution pair to coiled tubing
Top of fish is washed away, and continues tripping in coiled tubing later, is introduced fish inside fishing socket by guide shoe, and fixed by slips
Tubing fish, and then above propose salvaging.During fish above carries, due in by pit shaft dirty dirt influenced to be likely to occur fish above carry by
Pressurization hard draw can be used in the case where resistance at this time, or release fish connects the operating type salvaged again after card.Specifically, it uses
When returnable slip overshot is salvaged, fish can be discharged by rotation.
In the implementation of the present invention, the inventor finds that the existing technology has at least the following problems：
In the prior art, when fish salvaging, which above carries, to be hampered, since coiled tubing cannot effectively realize that reversible slips is beaten
The rotation of dipper discharges process, therefore mostly uses the salvaging mode of pressurization hard draw, not only reduces fishing success ratio in this way, simultaneously
The operating type does not embody the advantage of coiled tubing sharp work.It is not difficult to find out, it is used in the prior art to salvage
Tool there is a problem of discharging fish difficulty when being used cooperatively with coiled tubing.
Invention content
Existing release fish is difficult when in order to solve the problems, such as that fishing tool coordinates with coiled tubing in the prior art, this
Inventive embodiments provide a kind of fishing tool for coiled tubing, and the technical solution is as follows：
The embodiment of the present invention provides a kind of fishing socket for coiled tubing, and the fishing socket includes setting gradually in an axial direction
Fishing socket upper body, fishing socket lower case and guide shoe, which is characterized in that
It is from top to bottom disposed with inside the fishing socket：Hydro powered component, has cyclic structure at release component
Fishing slip and lock ring；
The lower end of the release component has lozenges, and the lozenges connects with the fishing slip medial surface,
The hydro powered component expands institute for driving the release component lower face to go deep into inside the fishing slip
State the internal diameter of fishing slip.
Preferably, the fishing socket upper body is formed with the fishing socket lower case and is driven for installing the waterpower
First installation cavity of dynamic component,
The hydro powered component includes：Piston with hollow tubular structure,
Valve ball valve in the piston inner cavity is set, and
The upper driving spring contacted with valve ball valve lower face discharges described in the lower end in contact of the upper driving spring
Component upper surface；
The piston can drive the valve ball valve together axially movable.
Preferably, it is provided with the first relief hole on the fishing socket upper body side wall, is set on the piston side wall
It is equipped with the second relief hole, when descent of piston can make second relief hole be aligned first relief hole.
Preferably, the valve ball valve includes the valve seat being arranged in the piston cavity, solid with the piston lower surface
Surely the cyclic annular valve seat baffle connected, and the valve ball that matches with the valve seat.
Preferably, the fishing socket lower case is formed with the second installation cavity with the guide shoe, in second installation cavity
The middle setting release component；
The release ring that the release component includes upper surface with end in contact under the upper driving spring, and under the release ring
The release of end face connection synchronizes ring, and release synchronous ring upper end has the wedge shape contacted with the fishing slip inner surface
Face.
Preferably, the upper end of the release ring is provided with internal diameter fixing groove compatible with the upper driving spring.
Preferably, salvaging holder is additionally provided in second installation cavity, the salvaging holder is socketed in the release
On the outside of ring, and the height for salvaging holder is less than the height of the release ring；The release ring upper end is provided with step surface,
The step surface can be contacted with the salvaging pedestal upper end face.
Preferably, the fishing slip includes slip grip, the slips being fixedly connected with the slip grip lower end
Ring is salvaged, and the lower driving spring being fixedly connected with the salvaging ring, in the upper end lateral surface setting of the slip grip
There is bulge loop；Hole between the slip grip and the salvaging holder is provided with relieving ring.
Preferably, the medial surface for ring being salvaged in the slips is provided at least two bulge loops.
Preferably, outer six aspect being easily installed with dismounting is provided in the fishing socket upper body lateral surface.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
When in use, the fishing socket that the embodiment of the present invention is provided is connected in the lower end of coiled tubing and tripping in pit shaft,
Fish top is introduced inside fishing socket again by guide shoe, is salvaged later by fishing slip.It is above carried encountering fish
When difficult situation, by being pumped into working solution into coiled tubing, hydro powered Component driver release group under the action of working solution
Part is run down so that is discharged the inside of the lozenges wedging fishing slip 9 of component, and moving down with release component, is salvaged
The internal diameter of slips is constantly expanded, and can decontrol the fish captured at this time, facilitates carry out subsequent operation.By way of hydro powered
So that the internal diameter of release component expansion fishing slip solves and matches in the prior art with coiled tubing to be released effectively fish
The fishing tool of conjunction is in the existing technical difficulty for discharging fish, the characteristics of embodying and coiled tubing sharp work is utilized.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, other are can also be obtained according to these attached drawings
Attached drawing.
Fig. 1 is a kind of structural schematic diagram of fishing socket for coiled tubing provided in an embodiment of the present invention；
Fig. 2 is a kind of sectional view for coiled tubing fishing socket along the directions A-A provided in an embodiment of the present invention；
Fig. 3 is a kind of partial structural diagram for coiled tubing fishing socket provided in an embodiment of the present invention.
Each label is respectively in attached drawing：
1. fishing socket upper body, 101. top connections, 102. outer six aspects, 103. first relief holes；
2. fishing socket lower case；
3. guide shoe；
4. piston, 41. second relief holes；
5. valve ball valve, 51. valve balls, 52. valve seats, 53. valve seat baffles；
Driving spring on 6.；
7. component is discharged, 71. release rings, the synchronous ring of 72. releases, 721. rectangular seals, 722. semicircle sealing rings；
8. mounting bracket；
9. fishing slip, 91. slip grips, 92. slips salvage ring；
10. lower driving spring；
11. lock ring；
12. relieving ring.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
An embodiment of the present invention provides a kind of fishing sockets for coiled tubing, and referring to Fig. 2, which includes in an axial direction
Fishing socket upper body 1, fishing socket lower case 2 and the guide shoe 3 set gradually；And inside fishing socket from top to bottom successively
It is provided with：Hydro powered component, release component 7, fishing slip 9 and lock ring 11 with cyclic structure；Discharge component 7
Lower end has lozenges, and lozenges connects with 9 medial surface of fishing slip, and hydro powered component is for driving release component 7
Lower face is goed deep into inside fishing slip 9, and the internal diameter of fishing slip 9 is expanded.
When in use, the fishing socket that the embodiment of the present invention is provided is connected in the lower end of coiled tubing and tripping in pit shaft,
Fish top is introduced inside fishing socket again by guide shoe 3, is salvaged later by fishing slip 9.On encountering fish
When putting forward difficult situation, by being pumped into working solution into coiled tubing, hydro powered Component driver discharges under the action of working solution
Component 7 is run down so that the inside of the lozenges wedging fishing slip 9 of release component 7, and moving down with release component 7,
The internal diameter of fishing slip 9 is constantly expanded, and can decontrol the fish captured at this time, facilitates carry out subsequent operation.
The fishing socket that the embodiment of the present invention is provided so that discharging component 7 expands fishing slip by way of hydro powered
9 internal diameter solves the fishing tool coordinated in the prior art with coiled tubing in release fish to be released effectively fish
Existing technical difficulty, the characteristics of embodying and coiled tubing sharp work is utilized.
Wherein, the various components that lock ring 11 can avoid salvaging in tube inner chamber are detached from fishing socket, ensure the normal of fishing socket
It uses, the fixed form of lock ring 11 is not specifically limited, can connect or be clamped with fishing socket lower case inner thread
Deng.Additionally it should be noted that, referring to Fig. 1, fishing socket upper body 1 also has a top connection 101, the top connection 101 with it is continuous
Tubing size matches, for connecting coiled tubing.And it is additionally provided with outer six aspect 102 in 1 lateral surface of fishing socket upper body, just
It is connected on the outside of fishing socket in auxiliary tool, realizes the connection with coiled tubing.
Further, the embodiment of the present invention provides a kind of feasible program of above-mentioned hydro powered component.Specifically, referring to figure
1, fishing socket upper body 1 is formed with the first installation cavity for installing hydro powered component with fishing socket lower case 2.Its
In, hydro powered component includes：The valve ball valve 5 in 4 lower end inner cavity of piston is arranged in piston 4 with hollow tubular structure,
And the upper driving spring 6 contacted with 5 lower face of valve ball valve, 7 upper surface of lower end in contact release component of upper driving spring 6；
Piston 4 can drive valve ball valve 5 together axially movable.
Since the hydro powered component equally has hollow structure, when discharging fish, blocked by valve ball valve 5
The inner cavity of fishing socket, the working solution for being pumped into coiled tubing at this time are accumulated in the part of 5 or more valve ball valve in 4 inner cavity of piston, and
Active force axially downward is generated to piston 4, pushes 4 downlink of piston.And then piston 4 squeezes driving spring axially downward
6, the upper driving of driving spring 6 at this time discharges 7 downlink of component and realizes that fish discharges process.
In order to ensure the normal driving work of hydro powered component, first is provided on 1 side wall of fishing socket upper body
Relief hole 103, is provided with the second relief hole 41 on 4 side wall of piston, and when 4 downlink of piston can make the second relief hole 41 be aligned first
Relief hole 103.When carrying out fish release operation, piston 4 comes downwards to the second relief hole 41 and is aligned the first relief hole 103, at this time
Liquid inside piston 4 can be discharged fishing socket by pressure release hole path, to 6 band of upper driving spring when effective 4 downlink of damper piston
The impact come, avoid the appearance fierce collision between each component.Simultaneously piston 4 and fishing socket upper body outer barrel 1 it
Between be provided with sealing ring, improve leakproofness, ensure that the working solution for being pumped into coiled tubing effectively drives 4 downlink of piston.And for close
The quantity of seal is not specifically limited, and can be 4,5,6 etc..
Meanwhile the structure about valve ball valve 5 is not specifically limited, and valve ball valve common in the art may be used
5.About the connection relation of valve ball valve 5 and piston 4, specifically, which includes the valve being arranged in 4 inner cavity of piston
Seat 52, the cyclic annular valve seat baffle 53 being fixedly connected with 4 lower face of piston, and the valve ball 51 that matches with valve seat 52.Valve
Ball 51 is with valve seat 52 with the use of the connection or closing for realizing salvaging tube inner chamber, the upper driving spring of bottom surface contact of valve seat baffle 53
6, compared with valve seat 52 is in direct contact upper driving spring 6, setting valve seat baffle 53 is effectively increased the contact surface with upper driving spring 6
Product is convenient for the job stability of component.
It is to sum up not difficult to find out, which equally has hollow structure：When hydro powered component blocks fishing socket
It can realize that hydro powered acts on when inner cavity, driving release component operation；When hydro powered component, which is connected to, salvages tube inner chamber, still
It can be pumped into working solution by coiled tubing and rinse top of fish.Simultaneously when fish release need not be carried out, may be used also by the fishing socket
De- pipeline foundation is quickly connect with breaking in pit shaft, is convenient for well-flushing operation.Specifically, flushing fluid is pumped by coiled tubing,
Flushing fluid is discharged from the end of pit shaft interior tube body, and then the annular space between oil pipe and pit shaft is returned and drained into outside well, at this time with clean
Liquid can carry out the sundries of pit shaft interior tube body periphery, reduce and hinder for follow-up salvage, improve fishing success ratio.
Further, the structure about release component 7, referring to Fig. 2, fishing socket lower case 2 is formed with second with guide shoe 3
Installation cavity, the setting release component 7 in the second installation cavity；It includes upper surface and 6 times end in contact of upper driving spring to discharge component 7
Discharge ring 71, ring 72 synchronouss with the release of release ring 71 lower face connection, discharge 72 upper end of synchronous ring with in fishing slip 9
The lozenges of surface contact.When carrying out fish release, upper driving spring 6 pushes release 71 downlink of ring, the release promotion of ring 71 to release
It puts synchronous ring 72 and the lozenges that release synchronizes ring 72 is wedged in fishing slip 9, to expand the internal diameter of fishing slip 9,
The fish captured is discharged in turn.Further, referring to Fig. 3, the medial surface that ring 72 is synchronized in release is additionally provided at least two
Rectangular seal 721 in sealing ring, such as Fig. 3 and semicircle sealing ring 722, when establishing connection with the de- pipeline that breaks in pit shaft,
Sealing ring inside synchronous release ring 72 ensure that the connection sealing of fishing socket and disconnected de- pipeline, be convenient for follow-up well-flushing etc.
Operation.
In addition, in order to improve the stability of release component, the upper end of release ring 71 is provided with internal diameter and upper driving spring 6
Compatible fixing groove.Therefore the phenomenon that being not in spring end offset when upper driving spring 6 is pressed down against release ring 71.
It is additionally provided in the second installation cavity simultaneously and salvages holder 8, referring to Fig. 2, which is socketed in release component 7 and beats
The height dragged for the outside of slips 9, and salvage holder 8 is less than the height of release ring 71；71 upper end of release ring is provided with step surface,
Step surface can be contacted with 8 upper surface of holder is salvaged.The step surface of release ring 71 plays position-limiting action, limits release ring 7
Bottom Runby prevents release component 7 from being damaged to fishing slip 9.Holder 8 is salvaged simultaneously defines that release component 7 is being salvaged
The upward movement of barrel dliameter, improves the stability of component, ensures the normal work of fishing socket.More specifically, salvaging the internal diameter of holder 8
It is upper slight big, wherein the outer diameter for salvaging the internal diameter and release ring 71 on 8 top of holder matches, the lower inner diameter of salvaging holder 8 compared with
Greatly, the installation cavity of fishing slip 9 is formed.
Further, referring to Fig. 3, fishing slip 9 includes slip grip 91, be arranged it is in 91 lower end of slip grip and
Ring 92 is salvaged with 91 integrally formed slips of slip grip, and the lower driving spring being fixedly connected with 92 lower face of salvaging ring
10, and the hole between slip grip 91 and salvaging holder 8 is provided with relieving ring 12, outside the upper end of slip grip 91
Side is provided with bulge loop.And the medial surface of slip grip 91, which has, salvages tooth, for stinging tight tubulose fish.When being salvaged
When operation, fish top is entered by guide shoe 3 inside fishing socket, it is upper carry fishing socket when, fish moves downward the lower driving of drive
Spring 10, fishing slip ring 92 and slip grip 91 move down certain distance under the action of lower driving spring 10 at this time, but
Since the upper outside in slip grip 91 is provided with bulge loop, the bulge loop and salvaging 12 collective effect of relieving ring so that
Fishing slip pawl 91 is tightened, and then is stung tight fish, prevent fish from falling off and realized salvaging.In addition, also ring 92 can be salvaged in slips
Medial surface at least two bulge loops are set, bulge loop radially in it is prominent, play the effect for preventing fish from falling off, ensure to salvage at
Power.
In conclusion the fishing socket that is provided of the embodiment of the present invention is when encountering fish and above putting forward difficult situation, by even
It is pumped into working solution in continuous oil pipe, hydro powered Component driver release component 7 is run down under the action of working solution so that release
The inside of the lozenges wedging fishing slip 9 of component 7, and moving down with release component 7, the internal diameter of fishing slip 9 constantly expands
, the fish captured can be decontroled at this time, facilitate carry out subsequent operation.The fishing socket that the embodiment of the present invention is provided simultaneously may be used also
It is quickly connect with the disconnected de- pipeline foundation in underground, carries out the operations such as well-flushing so that fishing will not be because of impurity, silt particle, oil in well
Dirt etc. is affected, and can establish well-flushing circulation canal in no input valve ball 51, carry out abundant well-flushing；In input valve
When ball 51, upper tool part may be implemented and establish outer well-flushing passage with coiled tubing.In addition, hydro powered release is simple to operation.
And raising integrally barrel structure is simple and practical, light weight, convenient for connection installation, connection sealing is good, operating efficiency is high, drops significantly
Low manual operation amount improves production efficiency.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of fishing socket for coiled tubing, the fishing socket includes sequentially connected fishing socket upper body in an axial direction
(1), fishing socket lower case (2) and guide shoe (3), which is characterized in that
It is from top to bottom disposed with inside the fishing socket：Hydro powered component, has cyclic structure at release component (7)
Fishing slip (9) and lock ring (11)；
The lower end of the release component (7) has lozenges, and the lozenges connects with the fishing slip (9) medial surface
It touches,
The hydro powered component is for driving release component (7) lower face to go deep into the fishing slip (9) inside, expansion
The internal diameter of the fishing slip (9).
2. fishing socket according to claim 1, which is characterized in that the fishing socket upper body (1) and the fishing socket
Lower case (2) is formed with the first installation cavity for installing the hydro powered component,
The hydro powered component includes：Piston (4) with hollow tubular structure,
Valve ball valve (5) in the piston (4) lower lumen is set, and
The upper driving spring (6) contacted with valve ball valve (5) lower face, the lower end in contact institute of the upper driving spring (6)
State release component upper surface；
The piston (4) can drive the valve ball valve (5) together axially movable.
3. fishing socket according to claim 2, which is characterized in that be arranged on fishing socket upper body (1) side wall
There is the first relief hole (103), be provided with the second relief hole (41) on the piston (4) side wall, when piston (4) downlink can
Second relief hole (41) is set to be aligned first relief hole (103).
4. fishing socket according to claim 2, which is characterized in that the valve ball valve (5) includes being arranged in the piston
(4) valve seat in inner cavity (52), the cyclic annular valve seat baffle (53) being fixedly connected with the piston (4) lower face, and with it is described
The valve ball (51) that valve seat (52) matches.
5. fishing socket according to claim 2, which is characterized in that the fishing socket lower case (2) and the guide shoe (3)
It is formed with the second installation cavity, the release component (7) is set in second installation cavity；
The release component (7) includes the release ring (71) of upper surface and end in contact under the upper driving spring (6), is released with described
The release for putting the connection of ring (71) lower face synchronizes ring (72), and synchronous ring (72) upper end of the release has and the fishing slip
(9) lozenges of inner surface contact.
6. fishing socket according to claim 5, which is characterized in that in the upper surface of the release ring (71) is additionally provided with
Diameter and the compatible fixing groove of the upper driving spring (6).
7. fishing socket according to claim 5, which is characterized in that be additionally provided with salvaging holder in second installation cavity
(8), the salvaging holder (8) is socketed on the outside of the release ring (71), and the height for salvaging holder (8) is less than described release
Put the height of ring (71)；
Release ring (71) upper end is provided with step surface, the step surface can be contacted with salvaging holder (8) upper surface.
8. fishing socket according to claim 1, which is characterized in that the fishing slip (9) includes slip grip (91),
Setting salvages ring (92) in the slip grip (91) lower end and with the integrally formed slips of the slip grip (91), with
And the lower driving spring (10) being fixedly connected with the salvaging ring (92),
The upper end lateral surface of the slip grip (91) is provided with bulge loop；
Hole between the slip grip (91) and the salvaging holder (8) is provided with relieving ring (12).
9. fishing socket according to claim 7, which is characterized in that the medial surface for salvaging ring (92) in the slips is provided with
At least two bulge loops.
10. wanting the fishing socket described in any one of 1~9 according to right, which is characterized in that in the fishing socket upper body (1)
Lateral surface is provided with outer six aspect (102) being easily installed with dismounting.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204820.6A CN108661586B (en) | 2017-03-30 | 2017-03-30 | A salvage cylinder for coiled tubing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710204820.6A CN108661586B (en) | 2017-03-30 | 2017-03-30 | A salvage cylinder for coiled tubing |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108661586A true CN108661586A (en) | 2018-10-16 |
| CN108661586B CN108661586B (en) | 2020-04-10 |
Family
ID=63786519
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710204820.6A Active CN108661586B (en) | 2017-03-30 | 2017-03-30 | A salvage cylinder for coiled tubing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108661586B (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109538145A (en) * | 2019-01-08 | 2019-03-29 | 成都百胜野牛科技有限公司 | Plunger catcher |
| CN109899035A (en) * | 2019-04-15 | 2019-06-18 | 成都百胜野牛科技有限公司 | Plunger operating device |
| CN110821434A (en) * | 2019-11-11 | 2020-02-21 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Self-tightening clamping jaw and retractable reducing fishing tool and method |
| CN111350470A (en) * | 2020-04-02 | 2020-06-30 | 四川安东油气工程技术服务有限公司 | Fishing tool |
| CN113492415A (en) * | 2020-04-02 | 2021-10-12 | 虫极科技（北京）有限公司 | Clamping jaw |
| CN115788370A (en) * | 2023-02-09 | 2023-03-14 | 山东华曦石油技术服务有限公司 | Thick oil continuous cold-production device and using method |
| CN117514057A (en) * | 2024-01-04 | 2024-02-06 | 大庆辰平钻井技术服务有限公司 | Overshot for oil well and ultra-short radius horizontal well blocking removing method |
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| US3942833A (en) * | 1969-09-18 | 1976-03-09 | Plunk Rowe A | Running tools |
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| CN109538145A (en) * | 2019-01-08 | 2019-03-29 | 成都百胜野牛科技有限公司 | Plunger catcher |
| CN109899035A (en) * | 2019-04-15 | 2019-06-18 | 成都百胜野牛科技有限公司 | Plunger operating device |
| CN110821434A (en) * | 2019-11-11 | 2020-02-21 | 中国石油集团川庆钻探工程有限公司工程技术研究院 | Self-tightening clamping jaw and retractable reducing fishing tool and method |
| CN110821434B (en) * | 2019-11-11 | 2023-08-18 | 中国石油天然气集团有限公司 | Self-tightening claw, retractable reducing fishing tool and method |
| CN111350470A (en) * | 2020-04-02 | 2020-06-30 | 四川安东油气工程技术服务有限公司 | Fishing tool |
| CN113492415A (en) * | 2020-04-02 | 2021-10-12 | 虫极科技（北京）有限公司 | Clamping jaw |
| CN113492415B (en) * | 2020-04-02 | 2024-05-28 | 运鼎科技（北京）有限公司 | Clamping jaw |
| CN115788370A (en) * | 2023-02-09 | 2023-03-14 | 山东华曦石油技术服务有限公司 | Thick oil continuous cold-production device and using method |
| CN117514057A (en) * | 2024-01-04 | 2024-02-06 | 大庆辰平钻井技术服务有限公司 | Overshot for oil well and ultra-short radius horizontal well blocking removing method |
| CN117514057B (en) * | 2024-01-04 | 2024-04-02 | 大庆辰平钻井技术服务有限公司 | Overshot for oil well and ultra-short radius horizontal well blocking removing method |
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