CN202108452U - Lifting salvage cylinder for horizontal well - Google Patents
Lifting salvage cylinder for horizontal well Download PDFInfo
- Publication number
- CN202108452U CN202108452U CN201120194660XU CN201120194660U CN202108452U CN 202108452 U CN202108452 U CN 202108452U CN 201120194660X U CN201120194660X U CN 201120194660XU CN 201120194660 U CN201120194660 U CN 201120194660U CN 202108452 U CN202108452 U CN 202108452U
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- China
- Prior art keywords
- wall
- top connection
- connecting rod
- internal slip
- dipper
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Abstract
A lifting salvage cylinder for a horizontal well is applied to salvage fish falling into a well in an oil field. A connecting rod is arranged in a central hole at the lower end bottom of an upper joint; a nut is fixed at the upper end of the connecting rod; an inner slip is hung on a ring-shaped step of the connecting rod; a compressed spring is sleeved on the outer wall of the inner slip; the connecting rod penetrates a central hole at the upper bottom of the inner slip; the outer wall at the lower end of the inner slip is a cone; a rectangular notch is formed on the wall of the inner slip; the lower part of the inner slip is divided into six flaps; slip teeth are formed on the inner walls of the six flaps at the lower part of the inner slip; a ring-shaped cutting piece is sleeved on the outer wall of the upper joint; a cylinder-shaped gland is sleeved on the outer wall of the upper joint; the upper end of the cylinder body of the lifting salvage cylinder is in threaded connection with the gland; the inner cone is connected to the lower end of the cylinder body of the lifting salvage cylinder; and a cylinder-shaped guide shoe is in threaded connection with the lower end of the inner cone. The utility model has the effects that the fish falling in the well can be salvaged; and when an object falling in the well is clamped, the lifting salvage cylinder can get out of the salvage state safely.
Description
Technical field
The utility model relates to the oilfield downhole operation instrument, and the horizontal well that definite a kind of chance card that is applicable to inclined shaft, horizontal well of saying so can withdraw from fish safely lifts dipper.
Background technology
At present, fishing socket is widely used in petroleum industry oil, gas field oil, well overhaul, salvages junk in the well when measure is safeguarded.But because the well depth characteristic of inclined shaft and horizontal well; After existing reversible fishing socket salvages the interior fish of well; Then rotation fishing strings that need realize that dipper withdraws from fish more if the junk tubing string is met card; In the well during tubing string rotation and the frictional resistance between the borehole wall very big, exist on-the-spot instrument to withdraw from the big problem of operation easier.Junk can not withdraw from when meeting card, causes the well workover salvage complicated.
The utility model content
The purpose of the utility model is: provide a kind of horizontal well to lift dipper, can catch and tighten the junk top smoothly, when junk in the well is met under the situation of card, on carry fishing string to certain tonnage, then dipper can withdraw from the salvaging state of chucking junk automatically.Overcome the deficiency that can not withdraw from when the prior art junk is met card.
The technical scheme that the utility model adopts is: horizontal well lifts dipper; Mainly form by top connection, gland, shearing sheet, nut, connecting rod, internal slip, length of spring compressed, dipper cylindrical shell, inner cone and guide shoe; There is internal thread the upper end of top connection, and the upper end of top connection can be connected with oil pipe or drilling rod, it is characterized in that: the top connection outer wall is the stairstepping cylinder; There is the end lower end of top connection, and there is centre bore the bottom under the top connection; A connecting rod is arranged in the centre bore of bottom under top connection, and connecting rod passes the centre bore of bottom under the top connection, and in the upper end of connecting rod external screw thread is arranged, and is fixed with nut in the upper end of connecting rod; There is ring-shaped step the lower end of connecting rod, on the ring-shaped step of connecting rod, is hung with internal slip; On the outer wall of internal slip, ring-shaped step is arranged, on the outer wall of internal slip, be with length of spring compressed, length of spring compressed is between top connection lower surface and internal slip outer wall ring-shaped step, and length of spring compressed can promote internal slip downwards.The end, arranged at described internal slip top, and internal slip has centre bore at the bottom of the top, and connecting rod also passes the centre bore at the bottom of the internal slip top when passing bottom centre bore under the top connection; Up and down space is arranged on connecting rod at the bottom of the slips top; The lower end outer wall of described internal slip is a cone shape, and the rectangle gap is arranged on the internal slip wall, and the internal slip bottom is divided into six lobes, and the inwall of six lobes has slip insert in the internal slip lower end;
Collar-shaped has the shearing sheet on the outer wall of top connection, on the top connection outer wall, is with columnar gland, and the outer wall of gland has screw thread, and the upper end of dipper cylindrical shell is threaded on the gland; There is internal thread lower end at the dipper cylindrical shell, and inner cone is threaded in the lower end of dipper cylindrical shell; There is conical centre bore described inner cone upper end, and the tapering of the conical centre bore in inner cone upper end is identical with the tapering of the cone shape of internal slip lower end outer wall; In the lower end of inner cone conical entrance hole is arranged, can TOF be introduced in six lobe centre bores of slips; Screw thread is connected with the cylindrical shape guide shoe in the lower end of inner cone.
Because the elastic force effect of length of spring compressed is close together internal slip lower end male cone (strobilus masculinus) and inner cone upper end inner conical surface.
Between described top connection lower end outer wall and the dipper cylindrical shell upper end inwall annular space is arranged; The annular inner portion of shearing sheet is on the step of top connection; Shear in the annular space of outer ring portion between top connection outer wall and dipper cylinder inboard wall of sheet, could cut off like this and shear sheet.
The summary horizontal well lifts the operating principle of dipper.Consult Fig. 1.
Because the elastic force effect of length of spring compressed 7 presses down internal slip 6, and internal slip 6 male cone (strobilus masculinus)s are contacted with the inner conical surface of inner cone 9, internal slip 6 lower end distinguish are contraction state, make horizontal well lift dipper and in the process of going into the well, are in the salvaging readiness all the time.TOF is through guide shoe 10 and get in the taper seat of inner cone 9 bottoms; The fish top end face top internal slip 6 that makes progress; Internal slip 6 distinguish are opened, and fish gets into the distinguish inner chamber of internal slip 6, is bitten by the slip insert of reversed acanthoid; On carry fishing string (lifting dipper top connection 1), dipper cylindrical shell 8 moves upward with inner cone 9; Be that internal slip 6 is descending relatively along the inner conical surface of inner cone 9, internal slip 6 produces radially clamping force, can bite in the well junk and it is pulled out.When fish in well, buried by sand or casing deformation stuck, lift power in the increase, it is up that top connection 1 drives shearing foil 3; Shearing sheet 3 is contacted with gland 2 bottom surfaces; Continue to strengthen upper lifting force, shearing foil 3 is sheared, and top connection 1 drives nut 4 and connecting rod 5 is up with internal slip 6; Internal slip 6 distinguish are up relatively along the inner conical surface of inner cone 9, and internal slip 6 distinguish open and unclamp fish.Trip out horizontal well and lift dipper and above tubing string thereof.
The beneficial effect of the utility model: the utility model horizontal well lifts dipper, can salvage the well fish of general straight well, also can be used to salvage the fish in inclined shaft and the horizontal well.Simple to operate, salvage reliably, and can withdraw from the salvaging state safely when junk is met card in well.The utility model compliance is strong, and fishing range is wide, and it is high to salvage one-time success rate.
Description of drawings
Fig. 1 is that the utility model horizontal well lifts dipper structural profile sketch map.
Among the figure, the 1-top connection, the 2-gland, 3-shears sheet, 4-nut, 5-connecting rod, 6-internal slip, 7-length of spring compressed, 8-dipper cylindrical shell, 9-inner cone, 10-guide shoe.
The specific embodiment
Embodiment 1: lifting dipper with a horizontal well is example, and the utility model is done further explain.
Consult Fig. 1.The utility model horizontal well lifts dipper, mainly is made up of top connection 1, gland 2, shearing sheet 3, nut 4, connecting rod 5, internal slip 6, length of spring compressed 7, dipper cylindrical shell 8, inner cone 9 and guide shoe 10.There is the API standard female upper end of top connection 1.Top connection 1 outer wall is the stairstepping cylinder, and there is the end lower end of top connection 1, and there is centre bore 1 time bottom of top connection.A connecting rod 5 is arranged in the centre bore of 1 time bottom of top connection, and connecting rod 5 passes the centre bore of 1 time bottom of top connection, and in the upper end of connecting rod 5 external screw thread is arranged, and is fixed with nut 4 in the upper end of connecting rod 5; There is ring-shaped step the lower end of connecting rod 5, on the ring-shaped step of connecting rod 5, is hung with internal slip 6; On the outer wall of internal slip 6, ring-shaped step is arranged, on the outer wall of internal slip 6, be with length of spring compressed 7, length of spring compressed 7 is between top connection 1 lower surface and internal slip 6 outer wall ring-shaped steps, and length of spring compressed 7 promotes internal slip 6 downwards.The end, arranged at described internal slip 6 tops, and internal slip has centre bore at the bottom of 6 tops, and connecting rod 5 also passes the centre bore at the bottom of internal slip 6 tops when passing 1 time bottom of top connection centre bore.Up and down space is arranged on connecting rod 5 at the bottom of slips 6 tops.The lower end outer wall of described internal slip 6 is that tapering is the cone shape of 25 degree, on internal slip 6 walls rectangle gap is arranged, and internal slip 6 bottoms are divided into six lobes, and the inwall of six lobes has slip insert in internal slip 6 lower ends.
Collar-shaped has the sheet 3 of shearing on the outer wall of top connection 1; On top connection 1 outer wall, be with columnar gland 2; Between described top connection 1 lower end outer wall and the dipper cylindrical shell 8 upper end inwalls annular space is arranged; The annular inner portion of shearing sheet 3 is sheared in the annular space of outer ring portion between top connection 1 outer wall and dipper cylindrical shell 8 inwalls of sheet 3 on the step of top connection 1.The outer wall of gland 2 has screw thread, and the upper end of dipper cylindrical shell 8 is threaded on the gland 2; There is internal thread lower end at dipper cylindrical shell 8, and inner cone 9 is threaded in the lower end of dipper cylindrical shell 8; There is conical centre bore described inner cone 9 upper ends, and the tapering of the conical centre bore in inner cone 9 upper ends is identical with the tapering of the cone shape of internal slip 6 lower end outer walls; It is that tapering is the conical entrance hole of 120 degree that tapering is arranged in the lower end of inner cone 9.Screw thread is connected with a cylindrical shape guide shoe 10 in the lower end of inner cone 9.
Claims (2)
1. a horizontal well lifts dipper; Mainly form by top connection (1), gland (2), shearing sheet (3), nut (4), connecting rod (5), internal slip (6), length of spring compressed (7), dipper cylindrical shell (8), inner cone (9) and guide shoe (10); There is internal thread the upper end of top connection (1); It is characterized in that: top connection (1) outer wall is the stairstepping cylinder, and there is the end lower end of top connection (1), and top connection (1) has centre bore in the bottom down; Under top connection (1), in the centre bore of bottom a connecting rod (5) is arranged, connecting rod (5) passes the centre bore of bottom under the top connection (1), and in the upper end of connecting rod (5) external screw thread is arranged, and is fixed with nut (4) in the upper end of connecting rod (5); There is ring-shaped step the lower end of connecting rod (5), on the ring-shaped step of connecting rod (5), is hung with internal slip (6); On the outer wall of internal slip (6), ring-shaped step is arranged, on the outer wall of internal slip (6), be with length of spring compressed (7), length of spring compressed (7) is between top connection (1) lower surface and internal slip (6) outer wall ring-shaped step; The end, arranged at described internal slip (6) top, and internal slip (6) has centre bore at the bottom of the top, and connecting rod (5) also passes the centre bore at the bottom of internal slip (6) top when passing bottom centre bore under the top connection (1); The lower end outer wall of described internal slip (6) is a cone shape, on internal slip (6) wall rectangle gap is arranged, and internal slip (6) bottom is divided into six lobes, and the inwall of six lobes has slip insert in internal slip (6) lower end;
Collar-shaped has shearing sheet (3) on the outer wall of top connection (1), on top connection (1) outer wall, is with columnar gland (2), and the outer wall of gland (2) has screw thread, and the upper end of dipper cylindrical shell (8) is threaded on the gland (2); There is internal thread lower end at dipper cylindrical shell (8), and inner cone (9) is threaded in the lower end of dipper cylindrical shell (8); There is conical centre bore described inner cone (9) upper end, and the tapering of the conical centre bore in inner cone (9) upper end is identical with the tapering of the cone shape of internal slip (6) lower end outer wall; There is conical entrance hole lower end at inner cone (9); Lower end screw thread at inner cone (9) is connected with cylindrical shape guide shoe (10).
2. horizontal well according to claim 1 lifts dipper; It is characterized in that: between described top connection (1) lower end outer wall and dipper cylindrical shell (8) the upper end inwall annular space is arranged; The annular inner portion of shearing sheet (3) is sheared in the annular space of outer ring portion between top connection (1) outer wall and dipper cylindrical shell (8) inwall of sheet (3) on the step of top connection (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120194660XU CN202108452U (en) | 2011-06-10 | 2011-06-10 | Lifting salvage cylinder for horizontal well |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201120194660XU CN202108452U (en) | 2011-06-10 | 2011-06-10 | Lifting salvage cylinder for horizontal well |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202108452U true CN202108452U (en) | 2012-01-11 |
Family
ID=45433888
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201120194660XU Expired - Lifetime CN202108452U (en) | 2011-06-10 | 2011-06-10 | Lifting salvage cylinder for horizontal well |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202108452U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110295866A (en) * | 2019-07-26 | 2019-10-01 | 盐城市大冈石油工具厂有限责任公司 | Two-way monoblock type lift |
| CN112145113A (en) * | 2019-06-28 | 2020-12-29 | 中国石油天然气股份有限公司 | Fishing device |
| CN112696166A (en) * | 2019-10-23 | 2021-04-23 | 中国石油化工股份有限公司 | Fishing tool for underground falling objects |
-
2011
- 2011-06-10 CN CN201120194660XU patent/CN202108452U/en not_active Expired - Lifetime
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112145113A (en) * | 2019-06-28 | 2020-12-29 | 中国石油天然气股份有限公司 | Fishing device |
| CN110295866A (en) * | 2019-07-26 | 2019-10-01 | 盐城市大冈石油工具厂有限责任公司 | Two-way monoblock type lift |
| CN110295866B (en) * | 2019-07-26 | 2024-01-30 | 盐城市大冈石油工具厂有限责任公司 | Bidirectional integral lifting device |
| CN112696166A (en) * | 2019-10-23 | 2021-04-23 | 中国石油化工股份有限公司 | Fishing tool for underground falling objects |
| CN112696166B (en) * | 2019-10-23 | 2022-07-26 | 中国石油化工股份有限公司 | Fishing tool for underground falling objects |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120111 |