CN104989312A - A sucker rod socket - Google Patents
A sucker rod socket Download PDFInfo
- Publication number
- CN104989312A CN104989312A CN201510448974.0A CN201510448974A CN104989312A CN 104989312 A CN104989312 A CN 104989312A CN 201510448974 A CN201510448974 A CN 201510448974A CN 104989312 A CN104989312 A CN 104989312A
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- CN
- China
- Prior art keywords
- turnover panel
- sucker rod
- lower shell
- shaped opening
- rod socket
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Abstract
The invention provides a sucker rod socket comprising an upper cylinder body and a lower cylinder body which are fixedly connected. The lower cylinder body is a wholly hollow cylinder. The upper section in the lower cylinder body is provided with a control turning plate. The hinge shaft end of the control turning plate is in hinge joint with the upper section cylinder wall of the lower cylinder body. The swing end of the control turning plate swings up and down with a hinge shaft as the center. A spring on the hinge shaft is used for controlling the control turning plate to return to the original place. The swing end of the control turning plate is also provided with a U-shaped opening. The positive lower end at the U-shaped opening of the control turning plate is in butt joint with the upper end opening of a through hole expanding gradually from top to bottom eccentrically. The height position, corresponding to the control turning plate, of the inner wall of the lower cylinder is provided with a limiting block. The sucker rod socket can meet the requirement for fishing of downhole falling objects of undeformed, complexly deformed, seriously deformed and multi-fish head sucker rods and is high in usability.
Description
Technical field
The present invention relates to well workover and salvage construction field, specifically a kind of sucker rod socket.
Background technology
Along with progressively going deep into of domestic each oil field development, the most wells in current each oil field all starts the ingress engine extraction oil stage, because of Production Wells overlong time causes that pipe bar is tired, serious, the hole deviation of dielectric corrosion causes in pit shaft side-abrasion of rod string, oil pipe quality problems and operation time the oil pipe that causes of a variety of causes such as screwed connection is bad and the sucker rod well accident that falls often occur in oil recovery manufacturing process.Rod broken to fall to bottom deep-well the enormous impact power of moment, there will be the difform gross distortion of multistage in the middle part of sucker rod, as significantly bending, spiral is agglomerating, fracture, many fishes are first-class.
Existing conventional sucker-rod fishing tool has three ball fishers, slip socket, turn over fork dipper etc., this kind of instrument only when sucker rod top of fish without distortion or when being out of shape minimum effectively.In the face of the distortion of sucker rod top of fish is serious, the first-class situation of many fishes, common tool just cannot complete fishing.
Summary of the invention
The object of the invention is to: for above-mentioned the deficiencies in the prior art, the sucker rod socket that a kind of usability is stronger be provided, it be suitable for be not out of shape, complex deformation, gross distortion, many fishes head sucker rod fish salvaging.
The technical solution used in the present invention is, a kind of sucker rod socket, comprise upper shell and lower shell, this upper shell is fixedly connected with lower shell, described lower shell is logical empty cylinder, the epimere place of this lower shell inside is provided with control turnover panel, this control turnover panel hinge end and lower shell epimere barrel hinged, the swinging end controlling turnover panel swings up and down centered by hinge, control turnover panel by the spring on hinge to reset, and the swinging end of this control turnover panel also has U-shaped opening, the positive lower end of the U-shaped opening in described control turnover panel place is docked with the through hole upper end open that from top to bottom bias expands gradually, the corresponding At The Height on lower shell inwall of described control turnover panel is provided with limited block.
The thickness of described limited block is greater than the maximum amplitude value controlling turnover panel and swing.
One section of cylindric through hole is had between described U-shaped opening and eccentric through-hole.
Further, the upper edge of described U-shaped opening place inner surface is welded with fringing, and this fringing is YD type Hardmetal materials.
The lower shell inwall that described control turnover panel is corresponding is provided with limited block, and the thickness of this limited block is greater than the maximum amplitude value controlling turnover panel and swing.
Described upper shell is connected with lower shell snapping, and the lower end of this upper shell is pin end, the upper end of lower shell is box end.
Described upper shell is logical empty cylinder, and this upper shell top has the T-shaped box of the bilayer reduced by rank from top to bottom.
The invention has the beneficial effects as follows: the present invention can meet that down-hole is not out of shape simultaneously, complex deformation, gross distortion, many fishes head sucker rod fish salvaging.The present invention uses limitation little, and compliance is extremely strong.Farthest can save the engineering time, shorten construction period, in turn save operating expenses, decrease construction risk, can carry out righting, and be introduced into smoothly in fishing socket junk not placed in the middle, the dynamics opening clamp needs is very little, can not destroy top of fish.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, the present invention is further illustrated.
Fig. 1 is structural representation of the present invention.
Fig. 2 is the A-A direction view of Fig. 1.
Code name implication in figure: 1-upper shell; 2-double-deck T-shaped box; 3-lower shell; 4-control turnover panel 5-hinge; 6-spring; 7-U-shaped opening; 8-fringing; 9-cylindric through hole; 10-eccentric through-hole; 11-limited block; 12-box end; 13-pin end.
Detailed description of the invention
Shown in Fig. 1, Fig. 2: the present invention is a kind of sucker rod socket, comprise upper shell 1 and lower shell 3.External diameter 3 ~ the 15mm less of oil pipe (pit shaft) internal diameter of this fishing socket, can make to greatest extent significantly to bend, spiral is agglomerating, fracture, many fishes head sucker rod introduce in this lower shell 3, this fishing socket wall thickness 5.5 ~ 12mm.
This upper shell 1 is fixedly connected with lower shell 3, and the pin end 13 of this upper shell 1 lower end, the upper end of lower shell 3 are box end 12.Upper shell 1 is logical empty cylinder, and this upper shell 1 top has the T-shaped box 2 of the bilayer reduced by rank from top to bottom.This double-deck T-shaped box 2 is connected with fishing string (the length 28 ~ 34cm bottom this drill string, preferred 30cm) for connecting.
Described lower shell 3 is logical empty cylinder, the epimere place of this lower shell 3 inside is provided with and controls turnover panel 4(control turnover panel 4 thickness is 20 ~ 25mm), this control turnover panel 4 hinge end and lower shell 3 epimere barrel hinged, the swinging end controlling turnover panel 4 swings up and down centered by hinge 5, spring 6 and control turnover panel 4 are through on hinge 5, and control the hinged hinged end (accusing the non-swinging end of turnover panel 4 processed) of turnover panel 4 have two outstanding, spring 6 be in these two outstanding between (this structure is the technology of existing maturation), be together in series by hinge 5, this spring 6 can make control turnover panel 4 swing up and down rear reset.In the length of this eccentric through-hole of the eccentric through-hole 10(of lower shell 3 10 sections generally at 40 ~ 60cm, preferred 50cm, meet the needs of intensity, if long eccentric through-hole 10 can reduce maximum effective drift diameter, thus affect the maximum tonnage capacity of fishing tool) the cylindric through hole 9(in place, upper end is after eccentric through-hole 4 guides sucker rod to enter fishing socket, further righting guiding is carried out to sucker rod) step of upper end has the aperture of two equal altitudes, hinge 5 is through on the aperture on lower shell 3, then the mode of electric welding is adopted to link together hinge 5 and lower shell 3.
Above-mentioned eccentric through-hole 10 is equivalent to a guide shoe, is conducive to the introducing of the top of fish of sucker rod.
And the size that the swinging end of above-mentioned control turnover panel 4 also has U-shaped opening 7(U type opening 7 is determined according to actual conditions, can grab by fish by the size changing U-shaped opening 7 small-sized, minimum effective size can reach 10mm, the present embodiment selects the width of opening to be 25 ~ 30mm, preferred 28cm), the positive lower end of the U-shaped opening in described control turnover panel 4 place 7 is docked with the through hole upper end open that from top to bottom bias expands gradually.The upper edge of U-shaped opening 7 place inner surface is welded with fringing 8, and this fringing 8 is YD type Hardmetal materials.Increase snap-in force, prevent from dragging for and obtain sucker rod slippage.
The radial load produced when upper carrying after arresting sucker rod to prevent control turnover panel 4 is strutted, sucker rod is caused to come off, control the height and position place of turnover panel 4 correspondence on lower shell 3 inwall and be provided with limited block 11, and the thickness of this limited block 11 is greater than the maximum amplitude value controlling turnover panel 4 and swing.The size of limited block 11 determines according to actual conditions, this limited block 11 is arranged in and controls on corresponding lower shell 3 inner surface of turnover panel 4 place jag, in addition except controlling turnover panel 4 jag and U-shaped opening 7 side, the left and right both end sides controlling turnover panel 4 also corresponding on lower shell 3 inner surface (on inwall) be provided with limited block 11 (limited block 11 that lower shell 3 inner surface is arranged fixing etc. can be fixedly connected with mode by being welded and fixed, riveting), the space making control turnover panel 4 be positioned at above-mentioned so limited block 11 to surround.
Above-mentioned U-shaped opening 7 will corresponding to the upper end open of the eccentric through-hole 10 of lower end; The center of circle, top of this eccentric through-hole 10 and the bottom circle center error of this eccentric through-hole 10 6 ~ 12 °, preferably 10 °.
Salvage principle: by carry drilling tool (fishing string) and dock with the T-shaped box 2 of the bilayer on sucker rod socket place upper shell 1, by fishing socket down to above about the 0.4m ~ 0.6m of top of fish, it is (not placed in the middle that turn on pump fully rinses fish, severe bends is out of shape, sucker rod in the first-class single situation of many fishes or multiple situation) termination of pumping after 30min, speed limit (determining according to actual conditions) is transferred to fish top of fish (also can gently switch dish make to transfer at a slow speed to fish top of fish with fishing socket being carried drilling tool), add the pressure of the drill 5 ~ 15KN, the pressure of the drill of exerting pressure reduces gradually or disappears, then not placed in the middle, severe bends is out of shape, sucker rod in the first-class single situation of many fishes or multiple situation introduces in the eccentric through-hole 10 of lower shell 3, then continue to exert pressure (general control is within 15KN) impel sucker rod to be pressed in fishing socket fully, and enter and carry in drilling tool, this sucker rod backs down and controls turnover panel 4 simultaneously.This eccentric through-hole 10 is through holes of eccentric expansion gradually from top to bottom, the upper end corresponding to eccentric through-hole 10 is rectified 7 times owing to controlling the U-shaped opening in turnover panel 4 place, one end of good guiding sucker rod is stretched into eccentric through-hole 10 upper end, and back down, by controlling turnover panel 4, then control turnover panel 4 to automatically reset under the active force of spring 6, U-shaped opening 7 blocks the shaft of sucker rod, namely realizes the salvaging to fish.Wherein, sucker rod is not placed in the middle in oil well, can be directed to assigned address by eccentric through-hole 10; The sucker rod of severe bends distortion, is guided by eccentric through-hole 10, the sucker rod hinge end of distortion can be made to enter in fishing socket, is blocked the fish step on fish, just can successfully salvage by the U-shaped opening 7 controlling turnover panel 4 place; During many fishes head situation, because eccentric through-hole 10 is lower supreme f eccentric reduction gradually, so after multiple fish head enters eccentric through-hole 10, finally only have a fish crown to open and control the U-shaped opening 7 at turnover panel 4 place, and block the fish step at this fish head place entering U-shaped opening 7 by the effect of U-shaped opening 7 and spring 6; U-shaped opening 7 size can adjust arbitrarily according to salvaging sucker rod (fish) box cupling or step dimension.
The technical scheme of above embodiment, only in order to the present invention to be described, is not intended to limit.Although with reference to the technical scheme of previous embodiment to invention has been detailed description, those of ordinary skill in the art is to be understood that: it still can be modified to preceding solution, or equivalent replacement is carried out to wherein portion of techniques feature; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the concrete technical scheme of the present invention.
Claims (6)
1. a sucker rod socket, comprise upper shell and lower shell, this upper shell is fixedly connected with lower shell, it is characterized in that: described lower shell is logical empty cylinder, the epimere place of this lower shell inside is provided with control turnover panel, this control turnover panel hinge end and lower shell epimere barrel hinged, the swinging end controlling turnover panel swings up and down centered by hinge, control turnover panel by the spring on hinge to reset, and the swinging end of this control turnover panel also has U-shaped opening, the positive lower end of the U-shaped opening in described control turnover panel place is docked with the through hole upper end open that from top to bottom bias expands gradually, the corresponding At The Height on lower shell inwall of described control turnover panel is provided with limited block.
2. sucker rod socket according to claim 1, is characterized in that: the thickness of described limited block is greater than the maximum amplitude value controlling turnover panel and swing.
3. sucker rod socket according to claim 1, is characterized in that: have one section of cylindric through hole between described U-shaped opening and eccentric through-hole.
4. sucker rod socket according to claim 1 or 3, is characterized in that: the upper edge of described U-shaped opening place inner surface is welded with fringing, and this fringing is YD type Hardmetal materials.
5. sucker rod socket according to claim 1, is characterized in that: described upper shell is connected with lower shell snapping, the lower end of this upper shell is pin end, the upper end of lower shell is box end.
6. sucker rod socket according to claim 1, is characterized in that: described upper shell is logical empty cylinder, and this upper shell top has the T-shaped box of the bilayer reduced by rank from top to bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448974.0A CN104989312A (en) | 2015-07-28 | 2015-07-28 | A sucker rod socket |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510448974.0A CN104989312A (en) | 2015-07-28 | 2015-07-28 | A sucker rod socket |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN104989312A true CN104989312A (en) | 2015-10-21 |
Family
ID=54301181
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510448974.0A Pending CN104989312A (en) | 2015-07-28 | 2015-07-28 | A sucker rod socket |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN104989312A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856474A (en) * | 2021-02-03 | 2022-08-05 | 中国石油天然气股份有限公司 | Drop control device |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157199A (en) * | 1977-08-03 | 1979-06-05 | Wilson Industries | Apparatus for retrieving a tubular member from a well |
| US4801167A (en) * | 1987-08-25 | 1989-01-31 | Darrell Driskill | Downhole well fishing assembly |
| CN2038950U (en) * | 1988-07-27 | 1989-06-07 | 大港石油管理局 | Fishing tube for column-shaped drop in well |
| CN2049675U (en) * | 1989-07-18 | 1989-12-20 | 中原石油勘探局采油五厂 | Eccentric valve fishing tool |
| CN2254951Y (en) * | 1996-04-20 | 1997-05-28 | 胜利石油管理局临盘采油厂 | Eccentric active cover type overshot for gripping sucker rod |
| CN2309417Y (en) * | 1997-07-15 | 1999-03-03 | 中外合资盐城华永石油机械制造有限公司 | Wall-contact sucker rod overshot with guide shoe |
| CN101265787A (en) * | 2008-04-22 | 2008-09-17 | 李恒水 | Telescopic type boring tool salvaging device |
| CN201339469Y (en) * | 2009-01-14 | 2009-11-04 | 新疆准东石油技术股份有限公司 | Baffle latch jack |
| CN202578609U (en) * | 2012-04-28 | 2012-12-05 | 辽宁石油机械制造有限公司 | Hinge type salvage barrel |
| CN202731805U (en) * | 2012-06-12 | 2013-02-13 | 天津市金甲石油工程技术服务有限公司 | Milling and fishing device of bridge plug |
| CN202832337U (en) * | 2012-08-13 | 2013-03-27 | 中国石油天然气股份有限公司 | Side-open type sucker rod overshot |
-
2015
- 2015-07-28 CN CN201510448974.0A patent/CN104989312A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4157199A (en) * | 1977-08-03 | 1979-06-05 | Wilson Industries | Apparatus for retrieving a tubular member from a well |
| US4801167A (en) * | 1987-08-25 | 1989-01-31 | Darrell Driskill | Downhole well fishing assembly |
| CN2038950U (en) * | 1988-07-27 | 1989-06-07 | 大港石油管理局 | Fishing tube for column-shaped drop in well |
| CN2049675U (en) * | 1989-07-18 | 1989-12-20 | 中原石油勘探局采油五厂 | Eccentric valve fishing tool |
| CN2254951Y (en) * | 1996-04-20 | 1997-05-28 | 胜利石油管理局临盘采油厂 | Eccentric active cover type overshot for gripping sucker rod |
| CN2309417Y (en) * | 1997-07-15 | 1999-03-03 | 中外合资盐城华永石油机械制造有限公司 | Wall-contact sucker rod overshot with guide shoe |
| CN101265787A (en) * | 2008-04-22 | 2008-09-17 | 李恒水 | Telescopic type boring tool salvaging device |
| CN201339469Y (en) * | 2009-01-14 | 2009-11-04 | 新疆准东石油技术股份有限公司 | Baffle latch jack |
| CN202578609U (en) * | 2012-04-28 | 2012-12-05 | 辽宁石油机械制造有限公司 | Hinge type salvage barrel |
| CN202731805U (en) * | 2012-06-12 | 2013-02-13 | 天津市金甲石油工程技术服务有限公司 | Milling and fishing device of bridge plug |
| CN202832337U (en) * | 2012-08-13 | 2013-03-27 | 中国石油天然气股份有限公司 | Side-open type sucker rod overshot |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114856474A (en) * | 2021-02-03 | 2022-08-05 | 中国石油天然气股份有限公司 | Drop control device |
| CN114856474B (en) * | 2021-02-03 | 2024-03-26 | 中国石油天然气股份有限公司 | Drop control device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151021 |