CN2651424Y - Reversible composite milling and fishing tool - Google Patents
Reversible composite milling and fishing tool Download PDFInfo
- Publication number
- CN2651424Y CN2651424Y CN 03238008 CN03238008U CN2651424Y CN 2651424 Y CN2651424 Y CN 2651424Y CN 03238008 CN03238008 CN 03238008 CN 03238008 U CN03238008 U CN 03238008U CN 2651424 Y CN2651424 Y CN 2651424Y
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- China
- Prior art keywords
- milling
- cone
- slips
- fishing
- shoe body
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- Expired - Fee Related
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Abstract
The utility model relates to a releasing shaping the fish top milling and fishing compound tool for heavy repair of the oil, gas and water well, which is composed of an upper joint 1, an outer suction bailer 2, a flange slips 3, a control ring 4, a sealing ring 5, an adapter sleeve 6, an adapter substitute 7, a griding shoe body 8, mill teeth 9, a pikestaff 10, a lock ring 11, a piston sealing ring 12, a hydraulic pressure piston 13, a limit pin 1, a cone slips 15, a cone 16, a gauge teeth 17 and a spring 18. The underwell tool is compact in structure and convenient in operation, which is applicable in the milling, fishing and clamp removing operation for normal well and the well of special structure; in addition, with the integration of internal and external fishing and milling, the utility model is capable of improving the mission success rate for fishing, shortening the construction period for heavy repair and saving construction cost.
Description
Technical field:
The utility model relates to a kind of downhole tool that is used for oil, gas, well overhaul.
Background technology:
In oil, gas, well heavy repair task, accident treatment process, often run into the top of fish fragmentation, complex-shaped, junk is stuck or multiple complex situations such as buried.At present, as the transition operation of next step processing or directly as treatment process, at first must carry out milling by means of brill, mill, miller tool handles, just can carry out fishing then, so not only increase the number of times that makes a trip, prolong construction period, and in salvaging the fish process, often cause secondary to damage, make the down-hole situation complicated, influence carrying out smoothly of next step construction the intact top of fish of milling.In addition, existing fishing tool drags for or drags for outward in can only carrying out fish, when carrying in unfreezing energetically like this, is easy to burst top of fish or slippage, causes and salvages failure.The fish short to the fish area of bed, instruments such as conventional fishing socket, fishing spear then can't be salvaged.
Summary of the invention:
The purpose of this utility model be to provide a kind of can realize cover mill with milling carry out synchronously, salvaging is carried out synchronously with milling, hydraulic pressure organically combines with mechanical fishing, in drag for to drag for the salvaging synchronously that combines outward integrated, and the instrument that can guarantee can withdraw from the oil gas water well overhaul reversible top of fish reparation milling salvaging composite tool of fish smoothly.
The utility model is to realize like this.This kind down-hole composite tool comprises the outer mechanism that drags for generally, in drag for mechanism, cover mills assembly and milling assembly four parts, by top connection, outer dipper, blue formula slips, gate ring, sealing ring, adapter sleeve, crossover sub, the junk mill body, mill teeth, the lance bar, the retaining ring, piston packing, hydraulic piston, spacer pin, the taper slips, cone, gauge teeth and spring are formed, on the outer dipper, the lower end is connected with crossover sub with top connection with screw thread respectively, the crossover sub lower end is connected with the milling shoe body, be provided with adapter sleeve between outer dipper and the milling shoe body, welding-on has mill teeth on the milling shoe body; Outer dipper inner surface is equipped with blue formula slips by left-handed sawtooth snapping, and blue formula slips lower end has two wide keyways to cooperate with the long key of gate ring, is set with sealing ring in the seal groove of gate ring; Be provided with the lance bar in the outer dipper, its upper end is connected with top connection with screw thread, the lower end is connected with cone, lance bar and cone inboard are equipped with retaining ring, hydraulic piston, taper slips and spring respectively, in the hydraulic piston seal groove piston packing is housed, the limited pin of taper slips is fixed on the hydraulic piston, can slide up and down along outer surface of cone, and the outer surface of cone welding-on has gauge teeth.During use, this tool operation tractor hoist down to top of fish top, is circulated with the cementing truck turn on pump, grind cover and mill the reparation top of fish, after fish entered instrument fully, following positive pressure changeed drilling tool, drag for mechanism's blue formula slips spiral outward and move down, block the fish outer wall, cementing truck improves pump pressure then, under hydraulic action, in drag for the mechanism piston and drag for slips in promoting and move down, by the cone distending, block the fish inner chamber, on propose drilling tool activity unfreezing, fishing is finished.If can not unfreezing, then press down drilling tool, in drag for slips and under spring action, return original position, just changeing drilling tool and withdrawing from the outer slips that drags for.
The utility model compact conformation, easy and simple to handle, can be applied to conventional oil, gas, well, various special wells and wellbore construction operation milling and salvage in the unfreezing operation.Integrated owing to dragging in it and dragging for outward, can protect fish injury-free, improve fishing success ratio; Because it is integrated that its cover mills with milling, can improve top of fish remediation efficiency and reliability; Because it is integrated that it is salvaged with milling, can shorten the overhaul construction period, save operating cost.
Description of drawings: accompanying drawing is a structural representation of the present utility model.
The specific embodiment: enforcement of the present utility model is described further below in conjunction with accompanying drawing.
As shown in the figure: the utility model is by top connection 1, outer dipper 2, blue formula slips 3, gate ring 4, sealing ring 5, adapter sleeve 6, crossover sub 7, junk mill body 8, mill teeth 9, lance bar 10, retaining ring 11, piston packing 12, hydraulic piston 13, spacer pin 14, taper slips 15, cone 16, gauge teeth 17, spring 18 is formed, its structure assembled relation is as follows: on the outer dipper 2, the lower end is connected with crossover sub 7 with top connection 1 with screw thread respectively, crossover sub 7 lower ends are connected with milling shoe body 8, be provided with adapter sleeve 6 between outer dipper 2 and the milling shoe body 8, welding-on has mill teeth 9 on the milling shoe body 8; Outer dipper 2 inner surfaces are equipped with blue formula slips 3 by left-handed sawtooth snapping, and blue formula slips 3 lower ends have 2 sipes to cooperate with the long key of gate ring 4, are set with sealing ring 5 in the seal groove of gate ring 4; Be provided with lance bar 10 in the outer dipper 2, its upper end is connected with top connection 1 with screw thread, the lower end is connected with cone 16, lance bar 10 and cone 16 inboards are equipped with retaining ring 11, hydraulic piston 13, taper slips 15 and spring 18 respectively, in hydraulic piston 13 seal grooves piston packing 12 is housed, taper slips 15 limited pins 14 are fixed on the hydraulic piston 13, can slide up and down along cone 16 external surfaces, and cone 16 external surface welding-ons have gauge teeth 17.Wherein, outer dipper 2 is a cylinder, and its inner surface is provided with left-handed sawtooth button, and upper and lower end is respectively equipped with screw thread.Blue formula slips 3 is a hollow circular cylinder, and its external surface is provided with the left-handed sawtooth button that matches with outer dipper 1 inner surface, and inner headed face is provided with left-handed taper and salvages tooth, and there are 4 openings that are uniformly distributed along the circumference the upper end, and there are 2 wide keyways the lower end.Milling shoe body 8 is a cylinder, and its periphery is provided with groove, and inner headed face is the shirt rim formula, and end face is the city wall profile of tooth, and welding-on has disk shape cutting mill teeth 9.Taper slips 15 inboards are by spring 18 controls, and external surface is provided with dextrorotation and salvages tooth.
Claims (3)
1, a kind of reversible top of fish is repaired milling and is salvaged composite tool, form by top connection (1), outer dipper (2), crossover sub (7), junk mill body (8), cone (16), it is characterized in that: outer dipper (2) upper and lower end is connected with crossover sub (7) with top connection (1) with screw thread respectively, crossover sub (7) lower end is connected with milling shoe body (8), be provided with adapter sleeve (6) between outer dipper (2) and the milling shoe body (8), milling shoe body (8) is gone up welding-on mill teeth (9); Outer dipper (2) inner surface is equipped with blue formula slips (3) by left-handed sawtooth snapping, and blue formula slips (3) lower end has 2 sipes to cooperate with the long key of gate ring (4), is set with sealing ring (5) in the seal groove of gate ring (4); Be provided with lance bar (10) in the outer dipper (2), its upper end is connected with top connection (1) with screw thread, the lower end is connected with cone (16), lance bar (10) and cone (16) inboard are equipped with retaining ring (11), hydraulic piston (13), taper slips (15) and spring (18) respectively, in hydraulic piston (13) seal groove piston seal (12) is housed, the limited pin of taper slips (15) (14) is fixed on the hydraulic piston (13), can slide up and down along cone (16) external surface, cone (16) external surface welding-on has gauge teeth (17).
2, reversible top of fish according to claim 1 is repaired milling and is salvaged composite tool, it is characterized in that: blue formula slips (3) is a hollow circular cylinder, its external surface is provided with the left-handed sawtooth button that matches with outer dipper (1) inner surface, inner headed face is provided with left-handed taper and salvages tooth, there are 4 openings that are uniformly distributed along the circumference the upper end, and there are 2 wide keyways the lower end.
3, reversible top of fish according to claim 1 is repaired milling and is salvaged composite tool, it is characterized in that: milling shoe body (8) is a cylinder, and its periphery is provided with groove, and inner headed face is the shirt rim formula, end face is the city wall profile of tooth, and welding-on has disk shape cutting mill teeth (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03238008 CN2651424Y (en) | 2003-08-29 | 2003-08-29 | Reversible composite milling and fishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03238008 CN2651424Y (en) | 2003-08-29 | 2003-08-29 | Reversible composite milling and fishing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2651424Y true CN2651424Y (en) | 2004-10-27 |
Family
ID=34326694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03238008 Expired - Fee Related CN2651424Y (en) | 2003-08-29 | 2003-08-29 | Reversible composite milling and fishing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2651424Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321624A (en) * | 2013-07-09 | 2013-09-25 | 中国石油集团渤海钻探工程有限公司 | Threaded sliding sleeve with ball seat capable of being taken out |
| CN106223893A (en) * | 2016-09-13 | 2016-12-14 | 吉林大学 | A kind of multi-functional interior flat dart |
| CN107288567A (en) * | 2017-08-10 | 2017-10-24 | 贵州高峰石油机械股份有限公司 | A kind of reversible set milling fishing integrated device and its Refloatation method |
| CN108999584A (en) * | 2018-09-21 | 2018-12-14 | 中煤科工集团重庆研究院有限公司 | A kind of compound fishing spear for coal mine down-hole drilling accident treatment |
| CN109763786A (en) * | 2019-02-27 | 2019-05-17 | 中石化石油工程技术服务有限公司 | Underground breakage casing takes and cements the well complete tooling |
| CN109798081A (en) * | 2019-02-27 | 2019-05-24 | 中石化石油工程技术服务有限公司 | A method of taking oil recovery wellbore casing |
| WO2021059304A1 (en) * | 2019-09-28 | 2021-04-01 | Khedmatgozar Ehsan | Expandable well fishing tool |
-
2003
- 2003-08-29 CN CN 03238008 patent/CN2651424Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103321624A (en) * | 2013-07-09 | 2013-09-25 | 中国石油集团渤海钻探工程有限公司 | Threaded sliding sleeve with ball seat capable of being taken out |
| CN103321624B (en) * | 2013-07-09 | 2016-04-20 | 中国石油集团渤海钻探工程有限公司 | A desirable ball seat sliding sleeve of screw-type |
| CN106223893A (en) * | 2016-09-13 | 2016-12-14 | 吉林大学 | A kind of multi-functional interior flat dart |
| CN106223893B (en) * | 2016-09-13 | 2018-08-21 | 吉林大学 | A kind of multi-functional interior flat dart |
| CN107288567A (en) * | 2017-08-10 | 2017-10-24 | 贵州高峰石油机械股份有限公司 | A kind of reversible set milling fishing integrated device and its Refloatation method |
| CN108999584A (en) * | 2018-09-21 | 2018-12-14 | 中煤科工集团重庆研究院有限公司 | A kind of compound fishing spear for coal mine down-hole drilling accident treatment |
| CN109763786A (en) * | 2019-02-27 | 2019-05-17 | 中石化石油工程技术服务有限公司 | Underground breakage casing takes and cements the well complete tooling |
| CN109798081A (en) * | 2019-02-27 | 2019-05-24 | 中石化石油工程技术服务有限公司 | A method of taking oil recovery wellbore casing |
| WO2021059304A1 (en) * | 2019-09-28 | 2021-04-01 | Khedmatgozar Ehsan | Expandable well fishing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |