CN201050322Y - Pumping unit mine mouth sealer - Google Patents
Pumping unit mine mouth sealer Download PDFInfo
- Publication number
- CN201050322Y CN201050322Y CNU2007201519374U CN200720151937U CN201050322Y CN 201050322 Y CN201050322 Y CN 201050322Y CN U2007201519374 U CNU2007201519374 U CN U2007201519374U CN 200720151937 U CN200720151937 U CN 200720151937U CN 201050322 Y CN201050322 Y CN 201050322Y
- Authority
- CN
- China
- Prior art keywords
- short circuit
- sealer
- well
- nipple
- linked
- 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
A well head sealer of oil extractor comprises an upper end enclosure (1) in which the lower end is in threaded connection with an upper nipple (2). The lower end of the upper nipple (2) is linked with a retractable hose (3) in which the lower end is linked with an lower nipple (4). The lower thread of the lower nipple (4) is linked with an lower end enclosure (5) in which the inside of the lower end hole is provided with a circular groove (6). A scraping packing washer (7) is arranged internally in the circular groove (6). Through the sealer, the liquid inside the well and the well head polish rod can be separated so that the liquid leakage on the well head packing box will not occur in the operation process of the top-down stroke of an well pumping unit. Therefore, the environmental protection purpose is met and the labour intensity of workers is reduced at the same time.
Description
Technical field:
The utility model relates to a kind of device in the oilfield downhole operation field, relates in particular to a kind of rod-pumped well sealer for mouth.
Background technology:
In recovering the oil in the oil field, well head mainly is the production tree device at present, and production tree is made of blowout prevention box, four way valve and four-way junction of casing, and wherein the blowout prevention box mainly plays sealing function, and the sealing quality of well head and polished rod is the efficient of influence oil recovery directly.Existing sealing device is to use packing box, because packing box reasons in structure sealing effectiveness is poor, makes well head packing box place effusion body pollution environment in the oil pumper up-down stroke running; Packing box needs closing well just can operate with advancing the weak point in application life when changing packing, and complicated operation, wastes time and energy, and labor strength is big.
The utility model content:
In order to overcome the deficiency in the background technology, the utility model provides a kind of rod-pumped well sealer for mouth, the sealing device can be separated liquid in the well and wellhead polish rod, make the non-leakage liquid in well head packing box place in the oil pumper up-down stroke running, reach the environmental protection purpose, reduced labor strength simultaneously.
The technical solution of the utility model is: this rod-pumped well sealer for mouth comprises upper cover (1), upper cover lower end screw thread is connected with short circuit, last short circuit lower end is connected with telescopic rubber pipe, the telescopic rubber pipe lower end is connected with down short circuit, low head has been threaded under the following short circuit, in the following stomidium of low head annular groove is arranged, annular groove is built-in with the scraping fluid joint ring.
The beneficial effect that the utlity model has is: the sealing device places the lower end of packing box, the scraping fluid joint ring is arranged in the lower end of sealer, liquid in the well and wellhead polish rod can be separated, make the non-leakage liquid in well head packing box place in the oil pumper up-down stroke running, avoid contaminated environment to reach the environmental protection purpose, reduce labor strength simultaneously, improved operating efficiency.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present utility model.
1-upper cover among the figure, the last short circuit of 2-, 3-telescopic rubber pipe, short circuit under the 4-, 5-low head, 6-annular groove, 7-scraping fluid joint ring.
The specific embodiment:
Below in conjunction with accompanying drawing will the utility model is described in further detail:
During use, the rod-pumped well sealer for mouth is penetrated polished rod.The sealing device comprises upper cover 1, upper cover 1 is connected the sealing well head with packing box, upper cover 1 lower end screw thread is connected with short circuit 2, last short circuit 2 lower ends are connected with telescopic rubber pipe 3, telescopic rubber pipe 3 lower ends are connected with down short circuit 4, last short circuit 2 and 4 interconnect functions of following short circuit, telescopic rubber pipe 3 can be by the length of required stroke size adjustment sealer, the following short circuit low head 5 that has been threaded for 4 times, in the following stomidium of low head 5 annular groove 6 is arranged, annular groove 6 is built-in with scraping fluid joint ring 7, and scraping fluid joint ring 7 is wiped the liquid on the polished rod off and played sealing simultaneously.
Claims (1)
1. rod-pumped well sealer for mouth, comprise upper cover (1), it is characterized in that: upper cover (1) lower end screw thread is connected with short circuit (2), last short circuit (2) lower end is connected with telescopic rubber pipe (3), telescopic rubber pipe (3) lower end is connected with down short circuit (4), the low head (5) that has been threaded under the following short circuit (4) has annular groove (6) in the following stomidium of low head (5), annular groove (6) is built-in with scraping fluid joint ring (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201519374U CN201050322Y (en) | 2007-06-18 | 2007-06-18 | Pumping unit mine mouth sealer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201519374U CN201050322Y (en) | 2007-06-18 | 2007-06-18 | Pumping unit mine mouth sealer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201050322Y true CN201050322Y (en) | 2008-04-23 |
Family
ID=39336806
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201519374U Expired - Fee Related CN201050322Y (en) | 2007-06-18 | 2007-06-18 | Pumping unit mine mouth sealer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201050322Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644148B (en) * | 2008-08-06 | 2013-01-16 | 大庆油田有限责任公司 | Non-smooth flexible rope corrugated pipe wellhead sealing device |
-
2007
- 2007-06-18 CN CNU2007201519374U patent/CN201050322Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101644148B (en) * | 2008-08-06 | 2013-01-16 | 大庆油田有限责任公司 | Non-smooth flexible rope corrugated pipe wellhead sealing 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: 20080423 Termination date: 20100618 |