CN2703866Y - Fishing spear for borehole instrument - Google Patents
Fishing spear for borehole instrument Download PDFInfo
- Publication number
- CN2703866Y CN2703866Y CN 200420041385 CN200420041385U CN2703866Y CN 2703866 Y CN2703866 Y CN 2703866Y CN 200420041385 CN200420041385 CN 200420041385 CN 200420041385 U CN200420041385 U CN 200420041385U CN 2703866 Y CN2703866 Y CN 2703866Y
- Authority
- CN
- China
- Prior art keywords
- cylindrical shell
- instrument
- salvaging
- jump ring
- well
- 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
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Abstract
The utility model discloses a salvaging barrel for the borehole instrument, used for the petroleum industry. The utility model is suitable for salvaging the various instruments which are fallen into the well bore. The utility model is provided with an upper joint and a barrel body. A circlip is arranged on the inner wall of the barrel body, and the lower part of the barrel body is connected with a guide shoe. Compared with the existing salvaging tool, the salvaging barrel for the borehole instrument has simple structure, and decreases the cost of the salvaging tool. The operation is convenient, and the using is reliable. The instruments can be prevented from damaging by using the salvaging barrel for the borehole instrument to salvage the borehole instruments, and the borehole instruments are completely salvaged. The salvaging barrel for the borehole instrument can be repeatedly used, and the production cost is reduced.
Description
Technical field
The utility model relates to the down-hole fishing tool of petroleum industry, and particularly a kind of well instrument fishing socket that falls is applicable to and salvages the various instruments that fall in the well.
Technical background
At present, at the well logging scene and the situ of drilling well of petroleum industry, often run into logger or Other Instruments and fall into the interior problem of well.The most frequently used method of dealing with has two kinds, and a kind of is to be lowered to instruments such as drill bit instrument is smashed, and makes the down-hole unobstructed.Another is to be lowered to fishing socket, and instrument is pulled out.First method is simple and reliable, but the well instrument that falls is destroyed.Second method complexity, effort, but be expected to utilize again salvaging the instrument that comes out, thereby reduce production costs.The fishing socket that uses in the second approach is the slip-type fishing socket at present, and the inner barrel of fishing socket is equipped with slips, complex structure, and internal diameter size is little.Be subjected to the restriction of slips structure, dipper is too short, can only salvage the neck of instrument.And require operating personnel accurately to grasp by the physical dimension of salvaging instrument.Moreover the method is very accurate to salvaging degree of depth requirement, and operation making mistakes slightly, and the slips in the fishing socket will or make to salvage and fail the instrument crushing.
Summary of the invention
The purpose of this utility model provides a kind of well instrument fishing socket that falls, and overcomes defective of the prior art, simplifies the fishing socket structure, makes it easy operating, guarantees the integrity of instrument, reduces production costs.
The present technique solution can reach above-mentioned purpose: a kind of well instrument fishing socket that falls, have top connection and cylindrical shell, and cylinder inboard wall is provided with jump ring, and the bottom is connected with guide shoe.
The utility model is compared with existing fishing tool, has following significant advantage: the fishing tool designs simplification, reduced the cost of fishing tool.Easy to operate, to use reliably, the instrument manufacturing is also very simple.Owing to cancelled slips, the length of dipper can be according to the Design of length manufacturing of instrument, but fishing tool is whole, and is not only neck, has guaranteed the success rate of fishing.Because the strong sheet jump ring of elasticity is equipped with in inside, the guide shoe bottom is a bell, is convenient to guide the well instrument to enter in the fishing socket and protect instrument to preserve from; to fall, the well instrument is complete to be pulled out, reuses, and reduces production costs; for expensive instrument, remarkable in economical benefits.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with accompanying drawing the utility model is done further detailed description: referring to accompanying drawing, a kind of well instrument fishing socket that falls has top connection 1 and cylindrical shell 2, and cylindrical shell 2 inwalls are provided with jump ring 3, and the bottom is connected with guide shoe 4.Jump ring 3 is that the bottom is fixed on the sheet spring that protrudes upward on cylindrical shell 2 inwalls, towards the cylindrical shell center, each group jump ring 3 has a plurality of, evenly distribute around cylindrical shell 2 inwall circumference, the jump ring 3 of design on cylindrical shell 2 inwalls is one group, two groups or many groups, and the group number of jump ring 3 and the height of cylindrical shell 2 decide according to the length of being salvaged instrument.The internal diameter of guide shoe 4 is the down big little tapered bore that, and its external diameter is than among the little 22mm-27mm of well internal diameter any one.Top connection 1 and cylindrical shell 2 are split-type structural or monolithic construction, and split type is exactly top connection 1 to be made separately be connected with cylindrical shell 2.Monolithic is exactly with top connection 1 and cylindrical shell 2 integral manufacturings.When need to salvage falling the well instrument, the utility model is connected the bottom of drilling tool, carries out tripping operation, put slowly about 10 meters away from the well instrument that falls circulating, remove the foreign material at instrument top clean be.Slowly transfer drilling tool then, observe the variation of suspending weight, in case damage instrument by pressure.After transferring to the suitable degree of depth, instrument enters in the cylindrical shell 2 and by jump ring 3 and blocks, and slowly trips out drilling tool and instrument can be dragged for and obtain.Owing to can design many group jump rings 3 in the utility model cylindrical shell 2, and what salvage is the body of instrument, thus not very strict to the requirement of salvaging the degree of depth, easy operating.
Claims (4)
1, a kind of well instrument fishing socket that falls comprises top connection (1) and cylindrical shell (2), it is characterized in that cylindrical shell (2) inwall is provided with jump ring (3), and the bottom is connected with guide shoe (4).
2, a kind of well instrument fishing socket that falls according to claim 1, it is characterized in that jump ring (3) is the sheet spring that the bottom is fixed on cylindrical shell (2) inwall, protrudes upward towards the cylindrical shell center, each group jump ring (3) has a plurality of, evenly distribute around cylindrical shell (2) inwall circumference, the jump ring (3) of design on cylindrical shell (2) inwall is one group, two groups or many groups.
3, a kind of well instrument fishing socket that falls according to claim 1, the internal diameter that it is characterized in that guide shoe (4) are the big down little tapered bore that, and its external diameter is than among the little 22mm-27mm of well internal diameter any one.
4, a kind of well instrument fishing socket that falls according to claim 1 is characterized in that top connection (1) and cylindrical shell (2) are split-type structural or monolithic construction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041385 CN2703866Y (en) | 2004-06-18 | 2004-06-18 | Fishing spear for borehole instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420041385 CN2703866Y (en) | 2004-06-18 | 2004-06-18 | Fishing spear for borehole instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2703866Y true CN2703866Y (en) | 2005-06-08 |
Family
ID=34774591
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420041385 Expired - Fee Related CN2703866Y (en) | 2004-06-18 | 2004-06-18 | Fishing spear for borehole instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2703866Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983830A (en) * | 2010-11-22 | 2011-03-09 | 上海中盟石油天然气有限公司 | Method for manufacturing fishing socket of female coupling tap |
| CN107345477A (en) * | 2016-05-06 | 2017-11-14 | 中石化石油工程技术服务有限公司 | Flexible fish fishing tool and preparation method thereof |
| CN109469458A (en) * | 2018-09-27 | 2019-03-15 | 核工业北京地质研究院 | A kind of circlip type fisher and its Refloatation method |
| CN111395986A (en) * | 2020-05-14 | 2020-07-10 | 中勘资源勘探科技股份有限公司 | Logging instrument fishing device for large-diameter drilling of coal mine |
-
2004
- 2004-06-18 CN CN 200420041385 patent/CN2703866Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101983830A (en) * | 2010-11-22 | 2011-03-09 | 上海中盟石油天然气有限公司 | Method for manufacturing fishing socket of female coupling tap |
| CN101983830B (en) * | 2010-11-22 | 2012-07-04 | 上海中盟石油天然气有限公司 | Method for manufacturing fishing socket of female coupling tap |
| CN107345477A (en) * | 2016-05-06 | 2017-11-14 | 中石化石油工程技术服务有限公司 | Flexible fish fishing tool and preparation method thereof |
| CN109469458A (en) * | 2018-09-27 | 2019-03-15 | 核工业北京地质研究院 | A kind of circlip type fisher and its Refloatation method |
| CN111395986A (en) * | 2020-05-14 | 2020-07-10 | 中勘资源勘探科技股份有限公司 | Logging instrument fishing device for large-diameter drilling of coal mine |
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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 |