CN204851144U - A high -efficient fishing tap for fishing operation in pit - Google Patents
A high -efficient fishing tap for fishing operation in pit Download PDFInfo
- Publication number
- CN204851144U CN204851144U CN201520486482.6U CN201520486482U CN204851144U CN 204851144 U CN204851144 U CN 204851144U CN 201520486482 U CN201520486482 U CN 201520486482U CN 204851144 U CN204851144 U CN 204851144U
- Authority
- CN
- China
- Prior art keywords
- screw thread
- die nipple
- nipple main
- thread
- fishing
- 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 high -efficient fishing tap for fishing operation in pit in oil and natural gas -oil gas well fishing operation field, including interior screwed joint (1), die nipple main part (2), hydrophthalmia (3) and salvage screw (4), die nipple main part (2) one end is connected with interior screwed joint (1), and the outer circular conical surface of die nipple main part (2) other end is equipped with salvages screw (4), and the center of interior screwed joint (1) and die nipple main part (2) is equipped with hydrophthalmia (3) had a perfect understanding, its characterized in that: it has the same double thread of forming to 1# external screw thread (5) and 2# external screw thread (6) of, the same tapering, the same helical pitch, the same screw tooth form size that revolves by two to salvage screw (4). The utility model discloses be favorable to improving and salvage efficiency, shorten the fishing operation engineering time, reduce the spending.
Description
Technical field
The utility model relates to oil and gas Oil/gas Well fishing field, is specifically related to a kind of efficient fishing tap for underground fishing operation.
Background technology
Die nipple belongs to the one of oil fishing tool, is a kind of special instrument carrying out thread making salvaging from the endoporus of the porose junks such as oil pipe, drilling rod, milling pipe, packer, injection well downhole flow regulator, production mandrel.In wellbore construction or oil, well manufacturing process, form trouble of lost tool in hole because the card that is hampered, the instantaneously factor such as overload or fatigue failure cause drill string to rupture unavoidably, now just need to carry out fishing.Along with the increase of drilling depth and oil, the prolongation of well production time, the frequency that trouble of lost tool in hole accident occurs also increases gradually, for improving the salvaging efficiency of existing die nipple to shorten man-hour, to cut down expenses, now the structure of die nipple being improved to improve it and salvaging efficiency.
Summary of the invention
The purpose of this utility model is to provide a kind of die nipple that rapidly and efficiently can carry out thread making salvaging from trouble of lost tool in hole endoporus.
The technical solution of the utility model is as follows: a kind of efficient fishing tap for underground fishing operation, comprise female adapter, die nipple main body, hydrophthalmia and salvaging screw thread, die nipple main body one end is connected with can female adapter joining with drilling rod, die nipple main body other end outer conical surface is provided with the salvaging screw thread for thread making, the center of female adapter and die nipple main body is provided with through hydrophthalmia, female adapter, die nipple main body, hydrophthalmia and salvaging screw thread have the central axis overlapped completely, it is characterized in that: described salvaging screw thread is double thread.
Described a kind of efficient fishing tap for underground fishing operation, is characterized in that: described salvaging screw thread is made up of the 1# external screw thread of identical rotation direction, identical tapering, identical helical pitch, identical form of thread size and 2# external screw thread by two.
Described salvaging screw thread, is characterized in that: described 1# external screw thread and the externally threaded starting point of 2# are positioned at the same plane perpendicular to central axis and opposing axial is 180 ° of angle distributions.
The utility model has the advantages that: by the salvaging screw thread of die nipple is improved to double thread structure by one start screw, make the lead angle of salvaging screw thread increase one times, thus often tip chi in when adding thread making.Salvage junk endoporus when die nipple enters and after applying suitable the pressure of the drill, rotation drilling tool, among the easier wedging trouble of lost tool in hole of salvaging screw thread, thus promote thread making speed, being conducive to improving and salvaging efficiency, shorten the salvaging engineering time, cut down expenses.
Accompanying drawing explanation
Fig. 1 be the utility model die nipple partly cut open structural representation.
Fig. 2 is the close-up schematic view at the position of A shown in Fig. 1.
Detailed description of the invention
As shown in Figure 1, the utility model comprises female adapter (1), die nipple main body (2), hydrophthalmia (3) and salvaging screw thread (4), described die nipple main body (2) one end be connected with can with the joining female adapter of drilling rod (1), die nipple main body (2) other end outer conical surface is provided with the salvaging screw thread (4) for thread making, the center of female adapter (1) and die nipple main body (2) is provided with through hydrophthalmia (3), female adapter (1), die nipple main body (2), hydrophthalmia (3) and salvaging screw thread (4) have the central axis overlapped completely, described salvaging screw thread (4) is double thread.
As shown in Figure 2, salvaging screw thread (4) has identical rotation direction, identical tapering, identical helical pitch, the 1# external screw thread (5) of identical form of thread size and 2# external screw thread (6) to form by two, and the starting point of 1# external screw thread (5) and 2# external screw thread (6) is positioned at the same plane perpendicular to central axis and opposing axial is 180 ° of angles distributes.
After die nipple enters salvaging junk endoporus, add suitable the pressure of the drill, and rotation drilling tool, force salvaging screw thread extruding wedging junk inwall to carry out thread making.Have employed the structure of double thread owing to salvaging screw thread, have larger lead angle, die nipple is salvaged among the easier wedging trouble of lost tool in hole of screw thread, thus promotes thread making salvaging speed.When the button made can bear certain pulling force and moment of torsion time, can take to carry or the way of back-off is pulled out all or part of for junk.
Claims (2)
1. the efficient fishing tap for underground fishing operation, comprise female adapter (1), die nipple main body (2), hydrophthalmia (3) and salvaging screw thread (4), die nipple main body (2) one end be connected with can with the joining female adapter of drilling rod (1), die nipple main body (2) other end outer conical surface is provided with the salvaging screw thread (4) for thread making, the center of female adapter (1) and die nipple main body (2) is provided with through hydrophthalmia (3), female adapter (1), die nipple main body (2), hydrophthalmia (3) and salvaging screw thread (4) have the central axis overlapped completely, it is characterized in that: described salvaging screw thread (4) is double thread.
2. a kind of efficient fishing tap for underground fishing operation according to claim 1, it is characterized in that: described salvaging screw thread (4) has identical rotation direction, identical tapering, identical helical pitch, the 1# external screw thread (5) of identical form of thread size and 2# external screw thread (6) to form by two, the starting point of 1# external screw thread (5) and 2# external screw thread (6) is positioned at the same plane perpendicular to central axis and opposing axial is 180 ° of angles distributions.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520486482.6U CN204851144U (en) | 2015-07-08 | 2015-07-08 | A high -efficient fishing tap for fishing operation in pit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520486482.6U CN204851144U (en) | 2015-07-08 | 2015-07-08 | A high -efficient fishing tap for fishing operation in pit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204851144U true CN204851144U (en) | 2015-12-09 |
Family
ID=54741702
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520486482.6U Expired - Fee Related CN204851144U (en) | 2015-07-08 | 2015-07-08 | A high -efficient fishing tap for fishing operation in pit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204851144U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411913A (en) * | 2020-05-15 | 2020-07-14 | 中国石油天然气集团有限公司 | Detachable fishing male tap and using method |
| CN115030679A (en) * | 2021-03-04 | 2022-09-09 | 中国石油天然气集团有限公司 | Male cone for coiled tubing salvage slim-hole choke and use method |
-
2015
- 2015-07-08 CN CN201520486482.6U patent/CN204851144U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111411913A (en) * | 2020-05-15 | 2020-07-14 | 中国石油天然气集团有限公司 | Detachable fishing male tap and using method |
| CN115030679A (en) * | 2021-03-04 | 2022-09-09 | 中国石油天然气集团有限公司 | Male cone for coiled tubing salvage slim-hole choke and use method |
| CN115030679B (en) * | 2021-03-04 | 2024-05-14 | 中国石油天然气集团有限公司 | Male cone for coiled tubing fishing slim hole throttle and use method |
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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: 20151209 Termination date: 20160708 |