CN2856389Y - Multifunction hydraulic fisher for small dropped article - Google Patents
Multifunction hydraulic fisher for small dropped article Download PDFInfo
- Publication number
- CN2856389Y CN2856389Y CN 200520093331 CN200520093331U CN2856389Y CN 2856389 Y CN2856389 Y CN 2856389Y CN 200520093331 CN200520093331 CN 200520093331 CN 200520093331 U CN200520093331 U CN 200520093331U CN 2856389 Y CN2856389 Y CN 2856389Y
- Authority
- CN
- China
- Prior art keywords
- piston
- inner tube
- hydraulic cylinder
- fishing
- interior pipe
- 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.)
- Expired - Fee Related
Links
Abstract
The utility model relates to a hydraulic multifunctional small article fishing device used in branch well, horizontal well and sidetracked hole. The fishing device is composed of a top joint 1, a hydraulic cylinder 2, a piston 3, an inner tube 4, a grasper 5, a telescopic magnetic needle 6, a milling shoe 7 and a rubber plug 8. The inner tube 4 is equipped with the top joint 1 by screw connection and with the hydraulic cylinder 2 which has a piston 3 disposed on the inner side, the grasper 5 is mounted on the outer side of the inner tube under the piston 3; the inner tube 4 is has the telescopic magnetic needle 6 installed on the bottom part, the milling shoe 7 screwed to the bottom end and the rubber plug 8 put in the inner tube 4. The fishing device fully utilizes the advantages of machinery and hydraulic pressure, has a plurality of fishing function for small articles, conquers the casing program limitation restriction of branch well, horizontal well and sidetracked well and the borehole wall restriction of open hole, is capable of improving the one-time success ratio of fishing.
Description
Technical field:
The utility model relates to a kind of fishing tool that is used for Multilateral Wells, horizontal well, sidetracked hole trouble of lost tool in hole.
Background technology:
Along with the prolongation of oil field development time, Multilateral Wells, horizontal well, sidetracked hole quantity are on the increase, and in frequent underground work process trouble of lost tool in hole take place inevitably.In Multilateral Wells, horizontal well, sidetracked hole; because the friction effect of casing wall and the bending of working string deep camber; the weight of tubing string can not act on conventional fishing tool tackles all problems at once preferably; the borehole wall of deep camber usually can make the claw bending of tackling all problems at once in advance in going down process simultaneously, and failure causes tackling all problems at once.In addition, the strong magnetic of another kind of conventional fishing tool bottom mostly is the plane, and the irregular smallclothes junk absorption affinity that has corner angle for some is little, and the smallclothes junk is fallen into easily in trip-out process and caused salvaging failure in the well.Thereby existing conventional trouble of lost tool in hole fishing tool is difficult to adapt to the requirement of Multilateral Wells, horizontal well, sidetracked hole, causes its fishing success ratio very low.
Summary of the invention:
The purpose of this utility model is to provide a kind of multifunctional hydraulic little junk fisher that can adapt to Multilateral Wells, horizontal well, sidetracked hole pit shaft actual conditions and can improve the trouble of lost tool in hole fishing success ratio greatly.
The utility model is to realize like this.This kind fisher by top connection, interior pipe, hydraulic cylinder, piston, tackle all problems at once, scalability needle, milling shoe and plug form, interior pipe upper end is with the top connection that has been threaded, the interior pipe outside of top connection below is set with hydraulic cylinder, the hydraulic cylinder inboard is provided with piston, and the interior pipe outside of piston below is set with tackles all problems at once; Interior pipe is equipped with the scalability needle in the bottom, and the lower end tipping has milling shoe; Drop into during the plug operation in the interior pipe.When Multilateral Wells, horizontal well, sidetracked hole fishing, tubing string down to the top of fish top, is overlapped earlier and mills; Under the effect of milling shoe and the strong needle of bottom scalability, junk is incorporated in the casing section mill as far as possible, be adsorbed on the scalability needle, drop into plug then; Under hydraulic action, promote to tackle all problems at once and mill outer wall along cover and go downwards to the shaft bottom operation of tackling all problems at once, bottom hole falling article is caught, seal the milling shoe mouth simultaneously.This instrument is not only applicable to salvage the smallclothes junk in Multilateral Wells, horizontal well and the sidetracked hole, is used in yet and salvages the smallclothes junk in the sidetracked hole bore hole.
The utility model has made full use of machinery and hydraulically operated advantage, multinomial smallclothes fishing junk function is comprehensively arranged, utilize it can overcome the restriction of Multilateral Wells, horizontal well, sidetracked hole casing programme and the restriction of the open hole well borehole wall, can improve the salvaging one-time success rate greatly.
Description of drawings:
Fig. 1 is a structural representation of the present utility model.Fig. 2 is a plug structural representation wherein.
The specific embodiment:
The utility model is provided by following examples, is illustrated below in conjunction with accompanying drawing.
As shown in the figure, the utility model by top connection 1, hydraulic cylinder 2, piston 3, interior pipe 4, tackle all problems at once 5, scalability needle 6, milling shoe 7 and plug 8 form, its structure, assembled relation are as follows: interior pipe 4 upper ends are with the top connection 1 that has been threaded, interior pipe 4 outsides of top connection 1 below are set with hydraulic cylinder 2, hydraulic cylinder 2 inboards are provided with piston 3, and the interior pipe outside of piston 3 belows is set with tackles all problems at once 5; Interior pipe is equipped with scalability needle 6 in 4 bottoms, and there is milling shoe 7 lower end with the screw thread tipping; Throw in the interior pipe 4 plug 8 is arranged.Wherein, the cylindrical sleeve that hydraulic cylinder 2 internal diameters are up-small and down-big, the top inner headed face is provided with seal groove, and the lower end edge barrel is evenly equipped with through hole.Piston 3 is a hollow circular cylinder, and its external diameter and hydraulic cylinder internal diameter match, and is respectively equipped with seal groove on the inside and outside disc in top, and the lower end periphery is provided with the round platform that matches with hydraulic cylinder 2.Tackle all problems at once 5 for sleeve body, internal diameter is up-small and down-big, and claw type is made in the lower end.In pipe 4 be on the diameter, the middle part is less, the pipe body that the bottom is bigger, its upper and lower end have respectively to be connected with milling shoe 7 with top connection 1 uses screw thread, the top tube wall is provided with through hole.Scalability needle 6 is telescopic aciculiform strong magnet, is made up of the cylindrical iron block which is provided with two longitudinal holes and the spring and the needle that are arranged in the uniform eyelet in iron block bottom surface.Plug 8 (see figure 2)s adopt rubber to make, and are the round bar body of umbrella shape for the surface.Milling shoe 7 can adopt conventional milling shoe.About this fisher length overall 1.1m, maximum steel body diameter is respectively Φ 80mm, Φ 100mm, Φ 118mm, Φ 152mm, four kinds of specifications, is applicable to that respectively Multilateral Wells, horizontal well, the sidetracked hole of 5 ", 7 " sleeve pipe salvaged the smallclothes junk.
Claims (1)
1, a kind of multifunctional hydraulic little junk fisher, form by top connection (1), hydraulic cylinder (2), piston (3), interior pipe (4), tackle all problems at once (5), scalability needle (6), milling shoe (7) and plug (8), it is characterized in that: interior pipe (4) upper end is with the top connection that has been threaded (1), interior pipe (4) outside of top connection (1) below is set with hydraulic cylinder (2), hydraulic cylinder (2) inboard is provided with piston (3), and the interior pipe outside of piston (3) below is set with tackle all problems at once (5); Interior pipe is equipped with scalability needle (6) in (4) bottom, and there is milling shoe (7) lower end with the screw thread tipping; Throw in the interior pipe (4) plug (8) is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093331 CN2856389Y (en) | 2005-11-02 | 2005-11-02 | Multifunction hydraulic fisher for small dropped article |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520093331 CN2856389Y (en) | 2005-11-02 | 2005-11-02 | Multifunction hydraulic fisher for small dropped article |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2856389Y true CN2856389Y (en) | 2007-01-10 |
Family
ID=37599696
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520093331 Expired - Fee Related CN2856389Y (en) | 2005-11-02 | 2005-11-02 | Multifunction hydraulic fisher for small dropped article |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2856389Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593341A (en) * | 2016-12-23 | 2017-04-26 | 中国石油天然气股份有限公司 | Hydraulic restrictor fishing tool and operation method thereof |
-
2005
- 2005-11-02 CN CN 200520093331 patent/CN2856389Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106593341A (en) * | 2016-12-23 | 2017-04-26 | 中国石油天然气股份有限公司 | Hydraulic restrictor fishing tool and operation method thereof |
| CN106593341B (en) * | 2016-12-23 | 2019-01-18 | 中国石油天然气股份有限公司 | Hydraulic restrictor fishing tool and operation method thereof |
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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: 20070110 Termination date: 20101102 |