CN205477489U - Hydraulic pressure can move back formula fishing tool - Google Patents
Hydraulic pressure can move back formula fishing tool Download PDFInfo
- Publication number
- CN205477489U CN205477489U CN201620276860.2U CN201620276860U CN205477489U CN 205477489 U CN205477489 U CN 205477489U CN 201620276860 U CN201620276860 U CN 201620276860U CN 205477489 U CN205477489 U CN 205477489U
- Authority
- CN
- China
- Prior art keywords
- urceolus
- core pipe
- bailer grab
- fishing tool
- top connection
- 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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- Earth Drilling (AREA)
Abstract
The utility model relates to a hydraulic pressure can move back formula fishing tool mainly comprises top connection, urceolus, core pipe, spring, steel ball and bailer grab, go up the outer diametral plane of connection end section and connect the one end at the urceolus, should go up connection end section inner surface with the core union coupling, the bailer grab cover is on the core pipe to be located the urceolus, the spring is located the urceolus, one end and top connection end face contaction, the other end and bailer grab end face contaction, the steel ball is located the intraductal inclined plane of core to form sealedly with the inclined plane, be equipped with flow channel m on the core pipe, the bailer grab is equipped with the split groove. The utility model discloses not measured time is carried salvage bridging plug or junk in highly deviated well or horizontal well after to the scheme, need not rotate the tubular column and suppresses the hydraulic pressure can move back formula fishing tool who withdraws from through the bowling, and it is high to salvage the success rate, simple structure, dependable performance.
Description
Technical field
This utility model relates to a kind of oil field well fishing tool, particularly relates to a kind of hydraulic returnable fishing tool, belongs to oilfield exploitation field of mechanical technique.
Background technology
During oilfield downhole operation, salvaging bridging plug or trouble of lost tool in hole will use fishing tool, when carrying motionless after dragging for bridging plug or junk, fishing tool also requirement can be exited.Existing fishing tool as exited, then must rotate tubing string and exit, but rotates tubing string difficulty in high angle hole or horizontal well, and such fishing tool just cannot exit, and makes accident complicate.In order to solve can to exit smoothly when existing fishing tool carries motionless in high angle hole or horizontal well, need a kind of to rotate the fishing tool that tubing string just can exit.
Utility model content
This utility model purpose be provide to overcome the deficiencies in the prior art a kind of in high angle hole or horizontal well, salvage bridging plug or junk after when carrying motionless, tubing string need not be rotated and be suppressed the hydraulic returnable fishing tool that exits by pitching.
For reaching above-mentioned purpose, the technical solution adopted in the utility model is: a kind of hydraulic returnable fishing tool, is mainly made up of top connection, urceolus, core pipe, spring, steel ball and bailer grab, and described top connection outer end diameter face is connected to one end of urceolus；This top connection inner end diameter face is connected with described core pipe；Described bailer grab is enclosed within core pipe, and is positioned at urceolus；Described spring is positioned at urceolus, one end and top connection end contact, the other end and bailer grab end contact；Described steel ball is positioned on the inclined-plane of core pipe, and forms sealing with inclined-plane；Described core pipe is provided with fluid course m；Described bailer grab is provided with a point lobe groove.
Improving further as this utility model, described top connection outer end diameter face is threaded connection with urceolus；Described top connection inner end diameter face is threaded connection with described core pipe.
Improving further as this utility model, described top connection and core pipe, bailer grab pass through several seal with O rings respectively with core pipe, bailer grab and urceolus.
Due to the utilization of technique scheme, this utility model compared with prior art has the advantage that
A kind of hydraulic returnable fishing tool of this utility model scheme, when carrying motionless after salvaging bridging plug or junk in high angle hole or horizontal well, tubing string need not be rotated and suppress the hydraulic returnable fishing tool that exits by pitching, fishing success ratio height, simple in construction, dependable performance.
Accompanying drawing explanation
Below in conjunction with the accompanying drawings technical solutions of the utility model are described further:
Accompanying drawing 1 is the structural representation of this utility model hydraulic returnable fishing tool；
Wherein: 1, top connection；2, urceolus；3, core pipe；4, spring；5, O；6, steel ball；7, bailer grab；8, inclined-plane；9, screw thread.
Detailed description of the invention
Below in conjunction with the accompanying drawings and specific embodiment the utility model is described in further detail.
nullDescribed in the utility model a kind of hydraulic returnable fishing tool as shown in Figure 1，Main by top connection 1、Urceolus 2、Core pipe 3、Spring 4、O 5、Steel ball 6 and bailer grab 7 form，Top connection 1 is threadeded with urceolus 2，Top connection 1 is threadeded with core pipe 3，And sealed by O 5，Bailer grab 7 is enclosed within core pipe 3，And it is positioned at urceolus 2，Bailer grab 7 forms annular seal space with core pipe 3 by O 5，Bailer grab 7 and urceolus 2 are formed by O 5 and seal，Spring 4 is positioned at urceolus 2，One end and top connection 1 end contact，The other end and bailer grab 7 end contact，Steel ball 6 is positioned on the inclined-plane 8 of core pipe 3，And form sealing with inclined-plane 8，Top connection 1 is provided with the screw thread 9 being connected with fishing string (not shown)，Core pipe 3 is provided with fluid course m，Bailer grab 7 is provided with a point lobe groove (not shown).
nullDuring use，First the steel ball 6 in this hydraulic returnable fishing tool is taken out，Again hydraulic returnable fishing tool is connected on fishing string，During by hydraulic returnable fishing tool down to bridging plug or junk top certain distance，Turn on pump rinses，After flushing terminates，Transfer hydraulic returnable fishing tool，Load certain load on bridging plug or junk，Upper lifting pipe post，As carried, trip out fishing string and pull bridging plug or junk out，As motionless in carried，Steel ball 6 is put in tubing string，Time on steel ball 6 to hydraulic returnable fishing tool core pipe inclined-plane 8，Turn on pump is suppressed in fishing string，Hydraulic pressure enters, by the fluid course m on core pipe 3, the annular seal space that bailer grab 7 is formed with core pipe 3，Promote bailer grab 7 up，Bailer grab 7 loses the support of urceolus 2，Bailer grab 7 separates with the top of fish of bridging plug or junk，It is proposed that hydraulic returnable fishing tool.
Below it is only concrete exemplary applications of the present utility model, protection domain of the present utility model is not constituted any limitation.The technical scheme that all employing equivalents or equivalence are replaced and formed, within the scope of all falling within this utility model rights protection.
Claims (3)
1. a hydraulic returnable fishing tool, it is characterised in that: being mainly made up of top connection, urceolus, core pipe, spring, steel ball and bailer grab, described top connection outer end diameter face is connected to one end of urceolus；This top connection inner end diameter face is connected with described core pipe；Described bailer grab is enclosed within core pipe, and is positioned at urceolus；Described spring is positioned at urceolus, one end and top connection end contact, the other end and bailer grab end contact；Described steel ball is positioned on the inclined-plane of core pipe, and forms sealing with inclined-plane；Described core pipe is provided with fluid course m；Described bailer grab is provided with a point lobe groove.
Hydraulic returnable fishing tool the most according to claim 1, it is characterised in that: described top connection outer end diameter face is threaded connection with urceolus；Described top connection inner end diameter face is threaded connection with described core pipe.
Hydraulic returnable fishing tool the most according to claim 1, it is characterised in that: described top connection and core pipe, bailer grab pass through several seal with O rings respectively with core pipe, bailer grab and urceolus.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620276860.2U CN205477489U (en) | 2016-04-06 | 2016-04-06 | Hydraulic pressure can move back formula fishing tool |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620276860.2U CN205477489U (en) | 2016-04-06 | 2016-04-06 | Hydraulic pressure can move back formula fishing tool |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205477489U true CN205477489U (en) | 2016-08-17 |
Family
ID=56647056
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620276860.2U Expired - Fee Related CN205477489U (en) | 2016-04-06 | 2016-04-06 | Hydraulic pressure can move back formula fishing tool |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205477489U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561095A (en) * | 2018-06-28 | 2018-09-21 | 唐山冀东石油机械有限责任公司 | Salable tail pipe unseals fishing tool |
-
2016
- 2016-04-06 CN CN201620276860.2U patent/CN205477489U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108561095A (en) * | 2018-06-28 | 2018-09-21 | 唐山冀东石油机械有限责任公司 | Salable tail pipe unseals fishing tool |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180406 |