CN2816338Y - Device for fishing drops underground - Google Patents
Device for fishing drops underground Download PDFInfo
- Publication number
- CN2816338Y CN2816338Y CN 200520086182 CN200520086182U CN2816338Y CN 2816338 Y CN2816338 Y CN 2816338Y CN 200520086182 CN200520086182 CN 200520086182 CN 200520086182 U CN200520086182 U CN 200520086182U CN 2816338 Y CN2816338 Y CN 2816338Y
- Authority
- CN
- China
- Prior art keywords
- fishing
- washpipe
- tool
- fallen
- washing 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
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Abstract
The utility model discloses a tool for fishing underground fallen objects for petroleum industry, which is suitable for fishing various small objects fallen into the shaft bottom. The tool comprises an upper joint, a pup joint and a washpipe, wherein the bottom end of the washpipe is sickle-shaped and connected with the pup joint, the outside of the washpipe is provided with an outer pipe, a through hole is arranged at the top part of the outer pipe and a rotary cutting mechanism is arranged at the lower part or the bottom part of the washpipe. Compared with the existing underground fishing tool, the utility model has the advantages of simple manufacture, variety of fishing the fallen objects and high success rate, and various small objects fallen into the shaft bottom during oil water well work, such as rubber, rope sleeves, asbestos-free wire gauze, etc., can be successfully fished. The rotary cutting mechanism of the washpipe not only has the function of fishing but also has the function of cutting for the fished fallen objects thereof so that the fallen objects can successfully enter the outer pipe and can be taken out of the wellhead.
Description
Technical field
The utility model belongs to the downhole operation equipment of petroleum industry, and particularly a kind of trouble of lost tool in hole fishing tool is suitable for salvaging the various small articles that fall into the shaft bottom.
Background technology
At present, the down-hole fishing tool kind of petroleum industry is a lot, but function singleness, and the fishing tool that uses as the scene has slips dipper, junk basket with reverse circulation, tackles all problems at once, the wall window, window etc., can only salvage a kind of object.When running into objects such as salvaging irregular packer and self-styled usefulness rubber, stopper, success rate is very low, and rubber and stopper are seldom pulled out from the shaft bottom.The scene needs a kind of adaptable fishing tool, and fishing tool is once gone into the well, and just can salvage multiple trouble of lost tool in hole.
Summary of the invention
The purpose of this utility model provides a kind of trouble of lost tool in hole fishing tool, overcomes the defective of existing fishing tool function singleness, makes down the applicability of well tool stronger, and once going into the well to adapt to the salvage of multiple junk.
The present technique solution can achieve the above object: a kind of trouble of lost tool in hole fishing tool comprises top connection, pipe nipple and washing pipe, and the washing pipe bottom is that wedge is connected with pipe nipple.Be provided with outer tube outside washing pipe, in the top of outer tube through hole be set, the bottom of washing pipe or bottom are provided with rotary-cut mechanism.
The utility model is made and is simply compared with existing down-hole fishing tool, has the advantage that kind is many, success rate is high of salvaging junk.The utility model is salvaged the various rubber that drop down onto the shaft bottom when the oil-water well operation, small articles such as rope sling, asbestos net, stopper by outer tube and washing pipe annular space.A circular knife sheet or a fan page or leaf blade-like are processed in the rotary-cut mechanism of washing pipe, and the junk of its salvaging is not only had the effect of fishing for, and also have dissection, can make junk enter outer tube smoothly and are taken out of well head.
Description of drawings
Accompanying drawing is a structural representation of the present utility model.
The specific embodiment
Below in conjunction with embodiment the utility model is done further detailed description: referring to accompanying drawing, a kind of trouble of lost tool in hole fishing tool comprises top connection 1, pipe nipple 2 and washing pipe 4, and washing pipe 4 bottoms are wedge, is connected with pipe nipple 2.Be provided with outer tube 5 outside washing pipe 4, in the top of outer tube 5 through hole be set, the bottom of washing pipe 4 or bottom are provided with rotary-cut mechanism.The rotary-cut mechanism that is arranged on washing pipe 4 bottoms is a screw blade 6, and the rotary-cut mechanism that is arranged on washing pipe 4 bottoms is a fan page or leaf blade, and several pieces fan page or leaf shape blades are fixed on cylindrical place, washing pipe 4 bottom.Illustrated rotary-cut mechanism is arranged on the screw blade 6 of washing pipe 4 bottoms.Outer tube 5 is connected on the pipe nipple 2, and pipe nipple 2 and washing pipe 4 are by lower contact 3 connections; The cylindrical respective outer side edges of the inner-cavity structure of lower contact 3 and pipe nipple 2 and washing pipe 4, its external diameter is greater than the top internal diameter of outer tube 5.The external diameter of outer tube 5 is less than the internal diameter of sleeve pipe 7.During on-the-spot the use this instrument inserted the drilling rod of next root, carry out direct flushing and rotate drilling tool, trouble of lost tool in hole enters in the outer tube 5 under the effect of the percussion of current and rotary-cut mechanism rotary cutting, change recoil then over to, junks such as rubber, rope sling will enter in the outer tube 5 of fishing tool with flushing fluid.Because recoil well liquid upward velocity is fast, add that the drilling tool rotation makes junks such as rubber, rope sling return on the helical orbit of washing pipe 4 screw blades 6 with flushing fluid.After stopping well-flushing, junks such as rubber, rope sling will be deposited in the helicla flute, and bigger object will be squeezed between washing pipe 4 and outer tube 5 inwalls, on carry working string and can take it out of well head.If the rotary-cut mechanism of washing pipe 4 bottoms is fan page or leaf blades, trouble of lost tool in hole also can along with flushing fluid and rotary-cut mechanism rotate into a fan page or leaf blade top, on carry working string, junk can be with the referred ground of this instrument.
Claims (3)
1, a kind of trouble of lost tool in hole fishing tool, comprise top connection (1), pipe nipple (2) and washing pipe (4), washing pipe (4) bottom is a wedge, be connected with pipe nipple (2), it is characterized in that outside washing pipe (4), being provided with outer tube (5), top in outer tube (5) is provided with through hole, and the bottom or the bottom of washing pipe (4) are provided with rotary-cut mechanism.
2, a kind of trouble of lost tool in hole fishing tool according to claim 1, the rotary-cut mechanism that it is characterized in that being arranged on washing pipe (4) bottom is screw blade (6), the rotary-cut mechanism that is arranged on washing pipe (4) bottom is a fan page or leaf blade.
3, a kind of trouble of lost tool in hole fishing tool according to claim 1 is characterized in that outer tube (5) is connected on the pipe nipple (2), and pipe nipple (2) and washing pipe (4) are by lower contact (3) connection; The cylindrical respective outer side edges of the inner-cavity structure of lower contact (3) and pipe nipple (2) and washing pipe (4), its external diameter is greater than the top internal diameter of outer tube (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086182 CN2816338Y (en) | 2005-08-11 | 2005-08-11 | Device for fishing drops underground |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520086182 CN2816338Y (en) | 2005-08-11 | 2005-08-11 | Device for fishing drops underground |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2816338Y true CN2816338Y (en) | 2006-09-13 |
Family
ID=36996145
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520086182 Expired - Fee Related CN2816338Y (en) | 2005-08-11 | 2005-08-11 | Device for fishing drops underground |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2816338Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029957A (en) * | 2018-01-12 | 2019-07-19 | 中石化石油工程技术服务有限公司 | Vane type fishing device and Refloatation method |
| CN111622703A (en) * | 2020-06-12 | 2020-09-04 | 中国石油天然气集团有限公司 | Tool and method for washing and salvaging small-sized falling objects through underground television of tubular column |
-
2005
- 2005-08-11 CN CN 200520086182 patent/CN2816338Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110029957A (en) * | 2018-01-12 | 2019-07-19 | 中石化石油工程技术服务有限公司 | Vane type fishing device and Refloatation method |
| CN111622703A (en) * | 2020-06-12 | 2020-09-04 | 中国石油天然气集团有限公司 | Tool and method for washing and salvaging small-sized falling objects through underground television of tubular column |
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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 |