CN2627195Y - Lose-hand device for oil extraction well narrow-bore water blocking tube - Google Patents
Lose-hand device for oil extraction well narrow-bore water blocking tube Download PDFInfo
- Publication number
- CN2627195Y CN2627195Y CN 03260087 CN03260087U CN2627195Y CN 2627195 Y CN2627195 Y CN 2627195Y CN 03260087 CN03260087 CN 03260087 CN 03260087 U CN03260087 U CN 03260087U CN 2627195 Y CN2627195 Y CN 2627195Y
- Authority
- CN
- China
- Prior art keywords
- lose
- giving
- hand
- lock ball
- endosome
- 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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- Quick-Acting Or Multi-Walled Pipe Joints (AREA)
Abstract
The utility model discloses a lose-hand device for oil extraction well narrow-bore water blocking tube. The device consists of a lower joint, a lose-hand inner body, a lose-hand inner loop, a lock ball, an upper joint and a pin. The cylindrical lose-hand inner body is embedded in the inside hole of the lower and upper joints, with the upper joint connected with the lose-hand inner body. The inner surface of the lower joint is provided with a hemicycle dent and a round hole is arranged on the wall of the lose-hand inner body corresponding to the dent, wherein a lock ball is embedded in the dent and the round hole. The lose-hand inner loop is arranged in the inside cavity of the lose-hand inner body, with the lock ball and the lose-hand inner loop connected by a pin. As the water blocking tube with the lower joint is lowered to a designated spot, an external force disconnects the pin from the lose-hand inner loop and the lock ball rolls out of the round hole and the dent, and then the lower joint and the water blocking tube are detached from the utility model to complete the lose-hand process. The utility model has the advantages of simple structure, reliable operation and easy operation.
Description
Technical field: the utility model relate to a kind of be used for to the water plugging string of producing well give up the construction device.
Background technology: the back-off sub used of Water in Water Shutoff in Oil Field tubing string at present, generally adopt catching mechanism or pin relieving mechanism, these mechanism structure are complicated and work unreliablely, give up in work progress easily midway, brought inconvenience to job execution.
Utility model content:, provide a kind of releasing device of simple in structure and reliable operation in order to overcome the prior art complex structure and insecure defective of working.The utility model is achieved by following scheme: a kind of producing well minor diameter water plugging string releasing device, it is by lower contact 1, the endosome 2 of giving up, ring 3 in giving up, lock ball 4, top connection 5 and pin 6 are formed, the endoporus of the lower contact 1 of round buss shape and the top connection 5 of round buss shape is connected, the endosome 2 of giving up of round buss shape is embedded in the endoporus of lower contact 1 and top connection 5, top connection 5 is connected with the endosome 2 of giving up, have semicircular pit 1-1 on the inner surface of lower contact 1, give up and have circular hole 3-1 with pit 1-1 corresponding section on the wall of endosome 2, stud with lock ball 4 among pit 1-1 and the circular hole 3-1, ring 3 is arranged in the inner chamber of the endosome 2 of giving up in giving up, lock ball 4 with give up in encircle 3 and be connected by pin 6.When with water plugging string that lower contact 1 is connected under in the well behind the assigned address, acting on interior ring of giving up with external force just can make pin 6 disconnect on 3, ring 3 comes off in giving up, lock ball 4 rolls out from circular hole 3-1 and pit 1-1, lower contact 1 just breaks away from together with water plugging string and the utility model, finishes the work of giving up.The utility model is not easy the accident that takes place to give up midway, has simple in structure, reliable operation and maneuverable advantage.
Description of drawings: Fig. 1 is a structural representation of the present utility model, and Fig. 2 is the enlarged diagram at I place among Fig. 1.
The specific embodiment: specify the utility model below in conjunction with Fig. 1 and Fig. 2.It is by lower contact 1, the endosome 2 of giving up, ring 3 in giving up, lock ball 4, top connection 5 and pin 6 are formed, the endoporus of the lower contact 1 of round buss shape and the top connection 5 of round buss shape is connected, the endosome 2 of giving up of round buss shape is embedded in the endoporus of lower contact 1 and top connection 5, top connection 5 is connected with the endosome 2 of giving up, have semicircular pit 1-1 on the inner surface of lower contact 1, give up and have circular hole 3-1 with pit 1-1 corresponding section on the wall of endosome 2, stud with lock ball 4 among pit 1-1 and the circular hole 3-1, ring 3 is arranged in the inner chamber of the endosome 2 of giving up in giving up, lock ball 4 with give up in encircle 3 and be connected by pin 6.Top connection 5 is connected by screw thread 5-1 with the endosome 2 of giving up.
Claims (2)
1, a kind of producing well minor diameter water plugging string releasing device, it is characterized in that it is by lower contact (1), the endosome (2) of giving up, the interior ring (3) of giving up, lock ball (4), top connection (5) and pin (6) are formed, the endoporus of the top connection (5) of lower contact of round buss shape (1) and round buss shape is connected, the endosome of giving up (2) of round buss shape is embedded in the endoporus of lower contact (1) and top connection (5), top connection (5) is connected with the endosome of giving up (2), have semicircular pit (1-1) on the inner surface of lower contact (1), give up and have circular hole (3-1) with pit (1-1) corresponding section on the wall of endosome (2), stud with lock ball (4) in pit (1-1) and the circular hole (3-1), the interior ring (3) of giving up is arranged in the inner chamber of the endosome of giving up (2), and lock ball (4) is connected by pin (6) with the interior ring (3) of giving up.
2, producing well minor diameter water plugging string releasing device according to claim 1 is characterized in that top connection (5) is connected by screw thread (5-1) with the endosome of giving up (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03260087 CN2627195Y (en) | 2003-06-13 | 2003-06-13 | Lose-hand device for oil extraction well narrow-bore water blocking tube |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03260087 CN2627195Y (en) | 2003-06-13 | 2003-06-13 | Lose-hand device for oil extraction well narrow-bore water blocking tube |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2627195Y true CN2627195Y (en) | 2004-07-21 |
Family
ID=34254987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03260087 Expired - Fee Related CN2627195Y (en) | 2003-06-13 | 2003-06-13 | Lose-hand device for oil extraction well narrow-bore water blocking tube |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2627195Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533189A (en) * | 2018-05-28 | 2018-09-14 | 东北石油大学 | A kind of coiled tubing tubing string hydraulic fracture device |
-
2003
- 2003-06-13 CN CN 03260087 patent/CN2627195Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533189A (en) * | 2018-05-28 | 2018-09-14 | 东北石油大学 | A kind of coiled tubing tubing string hydraulic fracture device |
| CN108533189B (en) * | 2018-05-28 | 2019-07-30 | 东北石油大学 | A kind of coiled tubing tubing string hydraulic fracture device |
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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: 20040721 Termination date: 20100613 |