CN201517385U - Multifunctional fishing tool for oil and gas field - Google Patents
Multifunctional fishing tool for oil and gas field Download PDFInfo
- Publication number
- CN201517385U CN201517385U CN2009202462955U CN200920246295U CN201517385U CN 201517385 U CN201517385 U CN 201517385U CN 2009202462955 U CN2009202462955 U CN 2009202462955U CN 200920246295 U CN200920246295 U CN 200920246295U CN 201517385 U CN201517385 U CN 201517385U
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- CN
- China
- Prior art keywords
- fishing
- core bar
- salvaging
- tool
- gas field
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- 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.)
- Expired - Fee Related
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Abstract
A multifunctional fishing tool for oil and gas field is applied for various downhole tools having standard fishing necks in oil and gas field fishing, the lower part of a fishing neck and the top end of a fishing body are in a screwed connection, a core pole is positioned in a centre hole of the fishing body, the core pole and the fishing body are fixed together through a shear pin, the upper part of the core pole has a spring, a core pole cap is in a screwed connection with the top end of the core pole, the external wall of the fishing body which has three longitudinal holes is winded with a rectangle screw spring, a fan-shaped projection is installed in the longitudinal holes, and the upper end of a fishing claw has holes through which the fishing claw is hanged on the convex part of the projection (9). Effects are that fishing necks of fish can be grasped reliably and safe releasing can also be realized. The matching connection between the multifunctional fishing tools and steel wire operation universal probe heads can be formed for realizing fishing by downhole tools with a caging mechanism. The fishing tool having art design, strong matching property, and wide range of application is capable of completing functions of fishing, locking, meeting an emergency and releasing grapping by one time, and the fishing tools have characteristics of few apparatuses, flexible and convenient operations, operation safety and high reliability.
Description
Technical field
The instrument that the utility model relates under the oil well is salvaged and the contingency processing technology field, be particularly related to a kind of and the matching used underground work instrument of standard steel wire, being used for salvaging the various downhole tools (fish) with standard fishing neck and handling down-hole accident, is the fishing tool of steel wire operation special use.
Background technology
Steel wire operation under the oil well mainly is to be lowered to a kind of form of construction work that steel wire carries out underground work by winch wire in oil pipe.Down-hole steel wire operation technology is widely used in oil gas field production, is mainly used in the processing of salvaging, down-hole accident of adjustment, downhole tool pulling, the trouble of lost tool in hole of production test, the production well proration of oil well and prevention operation etc.
At present, the oil field is used for the salvaging of downhole tool and handles the steel wire operation fishing tool kind of down-hole accident more, but all has in various degree defective and deficiency: 1, fishing tool can only be salvaged a certain specific downhole instrument; 2, fishing tool can only be salvaged the fish of a certain given diameter size; 3, fishing tool and the general matching of other steel wire operation instrument are poor; 4, lack a kind of various downhole tools with standard fishing neck or multi-functional fishing tool of fish salvaged.
The utility model content
The purpose of this utility model is: provide a kind of oil gas field multi-functional fishing tool, the steel wire operation salvaging that is used to salvage the various downhole tools (fish) with standard fishing neck and handles down-hole accident.Instrument three functions of slipping out of the hand that have reliable salvaging, automatically lock and meet an urgent need itself strengthen the versatility and the matching of instrument simultaneously; The supporting probe that carries can also be finished the salvaging to the down-hole fish that has locking mechanism.Thereby realize that a kind of instrument finishes multiple down-hole fish and salvage, reduce operating cost.Overcome existing fishing tool function singleness, can only be to the deficiency of given diameter or the salvaging of specific fish.
The technical solution adopted in the utility model is: the multi-functional fishing tool of oil gas field, mainly by fishing neck, core bar cap, spring, core bar, salvaging body, cut off, rectangular coil spring, projection, bailer grab and probe form.Fishing neck is the standard fishing neck, and promptly there is external screw thread on the fishing neck top, and fishing neck top external screw thread can connect with the steel wire operation instrument, is convenient to connect use.It is characterized in that: the fishing neck lower end with salvage between the body top to be threaded.It is cylindric salvaging body, and salvaging in the body centre bore has core bar.Core bar is fixing by cutting off with salvaging between the body.In the top of core bar and the annular space between core bar and fishing neck inwall spring is arranged, the core bar cap has been threaded on the top of core bar.Spring is between core bar cap lower surface and salvaging body upper surface.Be with the rectangular coil spring on the outer wall of salvaging body, the rectangular coil spring housing is being salvaged on the body, can be to the bailer grab applied thrust.On the salvaging body, three vertical holes are arranged, salvage the top of the position in the vertical hole of body at core bar lower end step.A fan-shaped bump is arranged in each vertical hole, and the outer wall of projection has circular protrusions.The bailer grab upper end is porose, and bailer grab hangs on the projection of projection by the hole of upper end.There is inwardly protruded pawl the bailer grab lower end.Core bar lower end internal thread is connected with probe.
The fishing neck upper external screw thread is M24, and the external diameter of fishing neck is 35mm, is convenient to connect and supporting use with other steel wire operation instrument.
In order to make the fixation of core bar cap, between core bar cap and core bar, adopt holding screw to fix.
In the time of aiming at having locking mechanism and the downhole tool of standard fishing neck being arranged of being salvaged to the down-hole for this fishing tool, there is the internal thread of M12 the lower end of described core bar, is fixed with the steel wire operation probe on the M12 of core bar internal thread.According to using needs different probes is installed.
The summary oil gas field helps to understand the utility model with the use of multi-functional fishing tool in the steel wire operation of down-hole.Consult Fig. 1.
1, top fishing neck 1 external screw thread and the standard steel wire power tool polyphone of the utility model oil gas field with multi-functional fishing tool connect, tool string relies on the gravity G.I.H.
2, the steel wire operation tool string to the fish position, is slowly transferred down, and weight indicator is designated as weightlessness, shows that bailer grab 10 has touched down-hole fish fishing neck.
3, continue slowly to transfer, the bailer grab 10 that loads can move up and open, and the grabbing of bailer grab 10 worked hard in glove with the fish fishing neck when being positioned at below the fishing neck, and the loading rectangular coil spring 8 of bailer grab 10 applies an active force downwards, make bailer grab 10 hold fish, and can automatically lock.
4, carry steel wire on, again by the steel wire jarring that makes progress, can make that to drag for thing loosening and break away from other underground equipment, the down-hole fish trips out pit shaft with the steel wire operation tool string.
5, after the down-hole fish is pulled pit shaft out, clamp the cylindrical shell position of bailer grab 10 upper ends of fishing tool on ground, upwards draw, compression rectangular coil spring 8 can make fish take out from fishing tool.
If 6 down-hole fish are met card, salvage when getting nowhere, then jarring downwards makes fishing tool cut off 7 and is cut off, and bailer grab 10 discharges, and fishing tool and fish are broken away from, and finishes emergent slipping out of the hand.
7. when if the salvaging down-hole has locking mechanism and the downhole tool (as instrument hanger, blanking plug etc.) of standard fishing neck is arranged, fishing tool need connect probe 11 down, probe 11 enters the fish locking mechanism and reclaims lock dog, and bailer grab 10 engagement with the fish necks can be pulled instrument out smoothly simultaneously.
Rectangular coil spring 8 compression springs can make bailer grab 10 open reliable engagement with the fish fishing neck to its loading active force and slip out of the hand with the realization safe release.Cut off 7 and be used for meeting card or salvaging when unsuccessful when fishing, cut off by the downward jarring of steel wire and cut off 7, fish can realize slipping out of the hand automatically.The bottom internal thread of core bar 5 design is used for supporting connection steel wire operation universal probe 11, and the recovery salvaging that probe 11 can realize having the downhole tool of locking mechanism is installed.The design of bailer grab 10 lower ends has three claws that keep sharp rib, cylindrical shell position, upper end is evenly equipped with three circular holes, be used to install three projections 9, connect with salvaging body 6 by projection 9, bailer grab 10 can hold the fish fishing neck under certain active force, finishes automatically locking and salvaging, pull fish out after, by applying active force, bailer grab 10 can discharge fish and realize slipping out of the hand smoothly on ground.According to using the detachable back of needs the probe 11 of different size is installed.
The beneficial effects of the utility model: the multi-functional fishing tool of a kind of oil gas field of the utility model, the steel wire operation salvaging that can realize salvaging various downhole tools (fish) and handle down-hole accident with standard fishing neck.Three functions of slipping out of the hand that have reliable salvaging, automatically lock and meet an urgent need belong to the steel wire operation class again, and it is few to employ equipment, flexible and convenient operation, and have operational security, reliability height, the characteristics that the activity duration is short, expense is low.Structure design is simple, ingenious, and matching is strong, and is applied widely.Can be used for salvaging and have 35mm and the downhole tool of 45mm standard fishing neck or the special tool of fish in the oil pipe.As tubing plug, downhole testing instrument, subsurface choke, plunger lift downhole hardware, Downhole jetting pump, balance ball-and-seat, the disconnected steel wire instrument that takes off etc.Can adapt to all kinds Oil, Water, Gas well.
Description of drawings
Fig. 1 is the utility model oil gas field with multi-functional fishing tool structural profile schematic diagram.
Among the figure, 1. fishing neck, 2. holding screw, 3. core bar cap, 4. spring, 5. core bar is 6. salvaged body, 7. cuts off 8. rectangular coil spring, 9. projection, 10. bailer grab, 11. probes.
The specific embodiment
Embodiment 1: with the external diameter of a fishing neck 1 is that the oil gas field of 35mm is an example with multi-functional fishing tool, and the utility model is described in further detail.
Consult Fig. 1.The multi-functional fishing tool of the utility model oil gas field, mainly by fishing neck 1, holding screw 2, core bar cap 3, spring 4, core bar 5, salvage body 6, cut off 7, rectangular coil spring 8, projection 9, bailer grab 10 and pop one's head in and 11 form.
Fishing neck 1 is the standard fishing neck, and fishing neck 1 upper external screw thread is M24.Fishing neck 1 lower end internal thread is connected with salvaging body 6 top external screw threads.It is cylindric salvaging body 6, and salvaging in body 6 centre bores has a core bar 5.There is the step of protrusion core bar 5 lower ends.To be by diameter that of 5mm cuts off 7 fixing with salvaging between the body 6 for core bar 5.In the top of core bar 5 and the annular space between core bar 5 and fishing neck 1 inwall, a spring 4 is arranged, the core bar cap 3 that the top that is threaded on the top of core bar 5 is taper.Between core bar cap 3 and core bar 5, adopt a holding screw 2 fixing.Spring 4 is between core bar cap 3 lower surfaces and salvaging body 6 upper surfaces.
Be with a rectangular coil spring 8 on the outer wall of salvaging body 6, rectangular coil spring 8 is enclosed within to be salvaged on the body 6.Two ends are semicircular vertical hole about having three on the salvaging body 6, salvage the top of the position in body 6 vertical holes at core bar 5 lower end steps.A fan-shaped bump 9 is arranged in each vertical hole, and the outer wall of projection 9 has a circular protrusions.Bailer grab 10 upper ends are porose, and bailer grab 10 hangs on the projection of projection 9 by the hole of upper end.There are three inwardly protruded pawls bailer grab 10 lower ends.
There is the internal thread hole of M12 at the center, lower end of core bar 5, when having locking mechanism and the downhole tool of standard fishing neck is arranged in the salvaging down-hole, fixes a steel wire operation probe 11 on the M12 of core bar 5 internal thread hole.
Claims (4)
1. multi-functional fishing tool of oil gas field, mainly by fishing neck (1), core bar cap (3), spring (4), core bar (5), salvage body (6), cut off (7), rectangular coil spring (8), projection (9), bailer grab (10) and probe (11) are formed, there is external screw thread on fishing neck (1) top, it is characterized in that: fishing neck (1) lower end with salvage between body (6) top to be threaded, it is cylindric salvaging body (6), salvage in body (6) centre bore core bar (5) is arranged, core bar (5) is fixing by cutting off (7) with salvaging between the body (6), in the top of core bar (5) and the annular space between core bar (5) and fishing neck (1) inwall, spring (4) is arranged, core bar cap (3) has been threaded on the top of core bar (5), spring (4) is between core bar cap (3) lower surface and salvaging body (6) upper surface, on the outer wall of salvaging body (6), be with rectangular coil spring (8), rectangular coil spring (8) is enclosed within to be salvaged on the body (6), on salvaging body (6), three vertical holes are arranged, salvage the top of the position in the vertical hole of body (6) at core bar (5) lower end step, a fan-shaped bump (9) is arranged in each vertical hole, the outer wall of projection (9) has circular protrusions, bailer grab (10) upper end is porose, bailer grab (10) hangs on the projection of projection (9) by the hole of upper end, there is inwardly protruded pawl bailer grab (10) lower end, and core bar (5) lower end internal thread is connected with probe (11).
2. the multi-functional fishing tool of oil gas field according to claim 1 is characterized in that: fishing neck (1) upper external screw thread is M24, and the external diameter of fishing neck (1) is 35mm.
3. the multi-functional fishing tool of oil gas field according to claim 1 is characterized in that: adopt holding screw (2) fixing between core bar cap (3) and core bar (5).
4. according to claim 1, the multi-functional fishing tool of 2 or 3 described oil gas fields, it is characterized in that: there is the internal thread of M12 the lower end of described core bar (5), is fixed with steel wire operation probe (11) on the M12 internal thread of core bar (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202462955U CN201517385U (en) | 2009-10-19 | 2009-10-19 | Multifunctional fishing tool for oil and gas field |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202462955U CN201517385U (en) | 2009-10-19 | 2009-10-19 | Multifunctional fishing tool for oil and gas field |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201517385U true CN201517385U (en) | 2010-06-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009202462955U Expired - Fee Related CN201517385U (en) | 2009-10-19 | 2009-10-19 | Multifunctional fishing tool for oil and gas field |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201517385U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988709A (en) * | 2017-05-22 | 2017-07-28 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of underground real-time, tunable throttling technique |
| CN107044266A (en) * | 2017-05-22 | 2017-08-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of presetting system underground adjustable choke fishing tool |
-
2009
- 2009-10-19 CN CN2009202462955U patent/CN201517385U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106988709A (en) * | 2017-05-22 | 2017-07-28 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of underground real-time, tunable throttling technique |
| CN107044266A (en) * | 2017-05-22 | 2017-08-15 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of presetting system underground adjustable choke fishing tool |
| CN106988709B (en) * | 2017-05-22 | 2019-06-18 | 中国石油集团川庆钻探工程有限公司长庆井下技术作业公司 | A kind of underground real-time, tunable throttling technique |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100630 Termination date: 20101019 |