CN201943639U - Pressure-typed sealing machine for oil well polish rod - Google Patents
Pressure-typed sealing machine for oil well polish rod Download PDFInfo
- Publication number
- CN201943639U CN201943639U CN2011200188826U CN201120018882U CN201943639U CN 201943639 U CN201943639 U CN 201943639U CN 2011200188826 U CN2011200188826 U CN 2011200188826U CN 201120018882 U CN201120018882 U CN 201120018882U CN 201943639 U CN201943639 U CN 201943639U
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- packing
- pressure
- bag
- packing box
- sealing machine
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Abstract
A pressure-typed sealing machine for an oil well polish rod comprises an upper pressure cap (1), a packing box (2), upper pressure and lower pressure bags (3 and 6 ), upper and lower check valves (4 and 7 ), upper and lower packings (5 and 8 ), a coupling (9), a high voltage flexible metal tube (10) and a clamp head or an inner screw thread coupling (11). A polish rod through hole is arranged in the center of the sealing machine; the clamp head or the inner screw thread coupling (11) is arranged at the lower portion of the sealing machine; and the high voltage flexible metal tube (10), the coupling (9) and the packing box (2) are sequentially connected with the upper portion of the clamp head or the inner screw thread coupling (11). The lower packing (8) and the upper packing (5) are arranged inside a cylindrical hole cavity of the packing box (2), the lower pressure bag (6) and the upper pressure bag (3) are arranged between the packings and the casing of the packing box (2), the lower check valve (7) and the upper check valve (4) are respectively arranged at the lower portions of the lower pressure bag (6) and the upper pressure bag (3), and the upper pressure cap (1) is connected with the screw thread on the upper portion of the packing box (2). The pressure-typed sealing machine enables the polish rod to be aligned with the wellhead automatically, the pressure-fastened packings are good in sealing, and the sealing machine has a long service life.
Description
Technical field
The utility model relates to oil field pumping well wellhead equipment and Sealing Technology, particularly is a kind of pressure type pumpingh well polished rod sealer.
Background technology
At present, in the oilfield pumping well manufacturing process, well head sealing, tuningout are the key technologies of pumpingh well management, existing this respect patented technology is many, as the anti-polarisation rod seal device of the antitheft blowout prevention of pumpingh well, the patent No.: ZL 02 2 12627.9, but there is following defective in this design: the well head sealing performance is bad, the chopped-off head packing life-span is short, and bolt connects easily destroyed.Thereby prior art still can not better address the above problem.
Summary of the invention
The purpose of this utility model is exactly at above-mentioned weak point, designs a kind of pressure type pumpingh well polished rod sealer.
Above-mentioned purpose is realized by following technical proposals:
The utility model comprises: upper pressing cap, packing box, upward pressure bag, go up ball-and-seat, go up packing, downforce bag, ball-and-seat, packing, box cupling, high-pressure metal flexible pipe, clip head or internal thread box cupling down down.Its center is provided with the polished rod through hole, the bottom is provided with clip head or internal thread box cupling, so that connect with the well head threeway, clip head or internal thread box cupling top are connecting high-pressure metal flexible pipe, box cupling, packing box successively, packing is housed down in the packing box cylindrical bore, goes up packing, downforce bag, upward pressure bag are housed between packing and packing box housing, and downforce bag, upward pressure bag bottom are equipped with down ball-and-seat respectively, are gone up ball-and-seat, the packing box top upper pressing cap that is being threaded.Press packet is the oil-resistant rubber material manufacturing, fills nitrogen by ball-and-seat, and last packing is the work packing, and following packing seals usefulness when replacing with packing.
The beneficial effects of the utility model are: the high-pressure metal flexible pipe can make polished rod and well head automatic centering, and the automatic sealed packing of pressure is effective, the packing long service life, need not fastening packing during ordinary production, time saving and energy saving, rate when improving oil well production increases crude output.
Description of drawings
Accompanying drawing is that the utility model master looks the partial cutaway structural representation.
Among the figure, 1-upper pressing cap, 2-packing box, 3-upward pressure bag, the last ball-and-seat of 4-, the last packing of 5-, 6-downforce bag, ball-and-seat under the 7-, packing under the 8-, 9-box cupling, 10-high-pressure metal flexible pipe, 11-clip head.
The specific embodiment
This pressure type pumpingh well polished rod sealer, by upper pressing cap 1, packing box 2, upward pressure bag 3, go up ball-and-seat 4, go up packing 5, downforce bag 6, down ball-and-seat 7, packing 8, box cupling 9, high-pressure metal flexible pipe 10, clip head 11 are formed down.Polished rod passes from its central through hole, bottom clip head 11 or internal thread box cupling connect with the well head threeway, clip head 11 or internal thread box cupling top are connecting high-pressure metal flexible pipe 10, box cupling 9, packing box 2 successively, following packing 8, last packing 5 are installed in the packing box 2, downforce bag 6, upward pressure bag 3 are installed between packing and packing box 2 housings, the packing box 2 tops upper pressing cap 1 that is being threaded.To upward pressure bag 3 inflated with nitrogen, packing 5 is gone up in the extruding of expanding, and reaches the purpose of sealing polished rod by last ball-and-seat 4.By ball-and-seat 7 is to downforce bag 6 inflated with nitrogen down, the extruding of expanding is packing 8 down, and temporary sealing replaces with packing 5 operations.
Claims (1)
1. pressure type pumpingh well polished rod sealer comprises: upper pressing cap (1), packing box (2), upward pressure bag (3), go up ball-and-seat (4), go up packing (5), downforce bag (6), ball-and-seat (7), packing (8), box cupling (9), high-pressure metal flexible pipe (10), clip head or internal thread box cupling (11) down down; It is characterized in that: described pressure type pumpingh well polished rod sealer center is provided with the polished rod through hole, the bottom is provided with clip head or internal thread box cupling (11), clip head or internal thread box cupling (11) top are connecting high-pressure metal flexible pipe (10) successively, box cupling (9), packing box (2), in packing box (2) cylindrical bore packing (8) is housed down, last packing (5), between packing and packing box (2) housing, downforce bag (6) is housed, upward pressure bag (3), downforce bag (6), upward pressure bag (3) bottom is equipped with down ball-and-seat (7) respectively, last ball-and-seat (4), packing box (2) the top upper pressing cap (1) that is being threaded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200188826U CN201943639U (en) | 2011-01-21 | 2011-01-21 | Pressure-typed sealing machine for oil well polish rod |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200188826U CN201943639U (en) | 2011-01-21 | 2011-01-21 | Pressure-typed sealing machine for oil well polish rod |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201943639U true CN201943639U (en) | 2011-08-24 |
Family
ID=44470988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200188826U Expired - Fee Related CN201943639U (en) | 2011-01-21 | 2011-01-21 | Pressure-typed sealing machine for oil well polish rod |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201943639U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787819A (en) * | 2012-07-16 | 2012-11-21 | 甄国卿 | Tire type puncture-proof eccentric packing box |
| CN104675359A (en) * | 2015-01-21 | 2015-06-03 | 铜仁中能天然气有限公司 | Safe shale gas well plugging device |
| CN106968631A (en) * | 2017-04-24 | 2017-07-21 | 赵吉春 | A kind of long-acting anti-oil leakage device of well mouth of oil well |
| CN111173470A (en) * | 2018-11-13 | 2020-05-19 | 中国石油天然气股份有限公司 | Sealing device and sealing method for polished rod of oil pumping unit |
-
2011
- 2011-01-21 CN CN2011200188826U patent/CN201943639U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787819A (en) * | 2012-07-16 | 2012-11-21 | 甄国卿 | Tire type puncture-proof eccentric packing box |
| CN104675359A (en) * | 2015-01-21 | 2015-06-03 | 铜仁中能天然气有限公司 | Safe shale gas well plugging device |
| CN106968631A (en) * | 2017-04-24 | 2017-07-21 | 赵吉春 | A kind of long-acting anti-oil leakage device of well mouth of oil well |
| CN111173470A (en) * | 2018-11-13 | 2020-05-19 | 中国石油天然气股份有限公司 | Sealing device and sealing method for polished rod of oil pumping unit |
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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: 20110824 Termination date: 20140121 |