CN202970588U - Pumping well polished rod sealing device enabling sealing piece to be conveniently taken out - Google Patents
Pumping well polished rod sealing device enabling sealing piece to be conveniently taken out Download PDFInfo
- Publication number
- CN202970588U CN202970588U CN 201220680535 CN201220680535U CN202970588U CN 202970588 U CN202970588 U CN 202970588U CN 201220680535 CN201220680535 CN 201220680535 CN 201220680535 U CN201220680535 U CN 201220680535U CN 202970588 U CN202970588 U CN 202970588U
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- seal
- support pipe
- stay pipe
- sealing
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- Expired - Fee Related
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Abstract
The utility model provides a pumping well polished rod sealing device enabling a sealing piece to be conveniently taken out. The sealing piece is arranged in a sealing box. Threads of an adjusting nut are screwed and combined with threads of the sealing box. An end portion of a support pipe is located in the sealing box. The sealing piece is arranged on an upper end face of the support pipe. Upper threads of the support pipe are left-hand threads, and lower threads of the sealing box are left-hand threads. The upper threads of the support pipe and the lower threads of the sealing box are matched, screwed and combined together. A blowout prevention sealing piece is arranged in a connector, and upper threads of the connector are connected with lower threads of a connecting sleeve. Lower threads of the support pipe are left-hand threads, and upper threads of the connecting sleeve are left-hand threads. The lower threads of the support pipe and the upper threads of the connecting sleeve are matched, screwed and combined together. The lower portion of the support pipe is inserted into the connector. The lower end face of the support pipe presses the blowout prevention sealing piece. A sealing ring is arranged between the support pipe and the connector. The pumping well polished rod sealing device is convenient and rapid in the process of taking out an old sealing piece, short in oil well idling period, and high in well opening success rate, reduces or eliminates the influence of thickened oil and shakeout on well opening of an oil well again, reduces well maintenance cost, and has remarkable economical benefit.
Description
Technical field
The utility model is the oil field pumping well wellhead equipment, is a kind of convenient sealing machine for oil well polish rod that takes out seal.
Background technology
in the pumpingh well oil pumping, oil pumper drives polished rod, sucker rod, oil well pump pumps and realizes oil pumping, because oil pumping system is airtight, the crude oil of extracting out has certain pressure, so polished rod will pump in polished rod sealer, polished rod sealer tightly embrace polished rod, seal in polished rod sealer easily damages, need often to change seal, first stop well during replacing, take out again old seal, then Xinmi City's sealing of packing into, due to reasons such as the structure of polished rod sealer and working environments, polished rod is located again in the inner, gap between polished rod and seal box is little, take out old seal more difficult, general employing bottle opener is drawn in narrow space and is got old seal, it is long to take out the needed time of old seal, the oil well off-time is long, grown for heavy oil wells and sand well off-time and can cause the difficulty that drives a well again, many oil wells can't afford to drive, increase workover cost, economic loss is very large.
Summary of the invention
The purpose of this utility model is a kind of convenient sealing machine for oil well polish rod that takes out seal of design, makes it take out seal convenient, fast, reduces the time of changing seal.
The purpose of this utility model is achieved in that and comprises adjusting cap, seal, seal box, stay pipe, seal is arranged in seal box, regulating the screw thread of cap and the screw thread of seal box screws, the end of stay pipe is in seal box, seal is sitting on the upper surface of stay pipe, the upper screw thread of stay pipe is left hand thread, and the lower thread of seal box is left hand thread, and the upper screw thread of stay pipe and the lower thread of seal box match and spin together.
The blowout prevention seal is installed in connector, the top screw thread of connector is connected with the lower thread of adapter sleeve, the lower screw thread of stay pipe is left hand thread, the top screw thread of adapter sleeve is left hand thread, the lower screw thread of stay pipe and the top screw thread of adapter sleeve match and spin together, insert in connector the bottom of stay pipe, and the blowout prevention seal is pushed down in the lower surface of stay pipe, between stay pipe and connector, sealing ring is installed.
The beneficial effects of the utility model are: convenient and swift when taking out old seal, the oil well off-time is short, the impact that alleviates or eliminate viscous crude, shake out oil well is driven a well again, and the success rate that drives a well is high, reduces workover cost, has significant economic benefit.
Description of drawings
Accompanying drawing is the assembling drawing of the utility model embodiment.
The specific embodiment
Below in conjunction with accompanying drawing, the utility model embodiment is described.
as seen from the figure, embodiment of the present utility model comprises adjusting cap 1, seal 2, seal box 3, stay pipe 4, adapter sleeve 5, sealing ring 6, blowout prevention seal 7, connector 8, seal 2 is arranged in seal box 3, regulating the screw thread of cap 1 and the screw thread of seal box 3 screws, the end of stay pipe 4 is in seal box 3, seal 2 is sitting on the upper surface of stay pipe 4, the tightness that cap 1 can be regulated seal 2 is regulated in rotation, the upper screw thread of stay pipe 4 is left hand thread, the lower thread of seal box 3 is left hand thread, the upper screw thread of stay pipe 4 and the lower thread of seal box 3 match and spin together.
In order not put borehole pressure when changing seal 2, the utility model has been taked further technical scheme: the interior installation blowout prevention of connector 8 seal 7, the top screw thread of connector 8 is connected with the lower thread of adapter sleeve 5, the lower screw thread of stay pipe 4 is left hand thread, the top screw thread of adapter sleeve 5 is left hand thread, the lower screw thread of stay pipe 4 and the top screw thread of adapter sleeve 5 match and spin together, insert in connector 8 bottom of stay pipe 4, blowout prevention seal 7 is pushed down in the lower surface of stay pipe 4, and sealing ring 6 is installed between stay pipe 4 and connector 8.
Come off after having moved back for the connecting thread that prevents seal box 3, stay pipe 4, adapter sleeve 5, the head diameter of stay pipe 4 is the diameter of thread greatly thereon, the lower diameter of stay pipe 4 is greater than the lower diameter of thread, for the ease of installing, stay pipe 4 is that two parts link into an integrated entity, and is welding in the present embodiment.
During use, connector 8 is connected with the well head flow tee, when needing to take out seal 2, first bleed off the pressure under seal 2, cap 1 is regulated in counter-rotating, make and regulate the compacting that cap 1 breaks away from seal 2, then counter-rotating sealing box 3, relative displacement produced at left hand thread effect lower seal box 3 and stay pipe 4, the descending stay pipe 4 of seal box 3 ejects seal 2 in seal box 3, do not need to adopt bottle opener to get seal from drawing between polished rod and seal box.
The adapter sleeve 5 of the utility model setting, sealing ring 6, blowout prevention seal 7, connector 8 are in order not put also Operating Pressure not of borehole pressure.When needing to change seal 2, the stay pipe 4 that first reverses makes 7 compressions of blowout prevention seal encase polished rod, thereby borehole pressure is separated, and in well, the band press liquid can not spray when changing seal 2, can get safely the seal operation.When finishing changing the seal 2 normal opening well and making production of needs, the forward stay pipe 4 again, and the connecting thread between stay pipe 4 and adapter sleeve 5 is unclamped, and blowout prevention seal 7 is in off position, can not be in contact with it when polished rod is walked within it, can guarantee that work on when changing seal next time.
Claims (2)
1. one kind facilitates the sealing machine for oil well polish rod that takes out seal, comprise and regulate cap (1), seal (2), seal box (3), stay pipe (4), seal (2) is arranged in seal box (3), regulating the screw thread of cap (1) and the screw thread of seal box (3) screws, it is characterized in that: the end of stay pipe (4) is in seal box (3), seal (2) is sitting on the upper surface of stay pipe (4), the upper screw thread of stay pipe (4) is left hand thread, the lower thread of seal box (3) is left hand thread, the lower thread of the upper screw thread of stay pipe (4) and seal box (3) matches and spins together.
2. convenience according to claim 1 is taken out the sealing machine for oil well polish rod of seal, it is characterized in that: blowout prevention seal (7) is installed in connector (8), the top screw thread of connector (8) is connected with the lower thread of adapter sleeve (5), the lower screw thread of stay pipe (4) is left hand thread, the top screw thread of adapter sleeve (5) is left hand thread, the top screw thread of the lower screw thread of stay pipe (4) and adapter sleeve (5) matches and spins together, insert in connector (8) bottom of stay pipe (4), blowout prevention seal (7) is pushed down in the lower surface of stay pipe (4), between stay pipe (4) and connector (8), sealing ring (6) is installed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680535 CN202970588U (en) | 2012-12-03 | 2012-12-03 | Pumping well polished rod sealing device enabling sealing piece to be conveniently taken out |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220680535 CN202970588U (en) | 2012-12-03 | 2012-12-03 | Pumping well polished rod sealing device enabling sealing piece to be conveniently taken out |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202970588U true CN202970588U (en) | 2013-06-05 |
Family
ID=48511675
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220680535 Expired - Fee Related CN202970588U (en) | 2012-12-03 | 2012-12-03 | Pumping well polished rod sealing device enabling sealing piece to be conveniently taken out |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202970588U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996094A (en) * | 2012-12-03 | 2013-03-27 | 张海峰 | Polished rod sealer facilitating taking out sealing element for oil pumping well |
-
2012
- 2012-12-03 CN CN 201220680535 patent/CN202970588U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102996094A (en) * | 2012-12-03 | 2013-03-27 | 张海峰 | Polished rod sealer facilitating taking out sealing element for oil pumping well |
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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 |
Granted publication date: 20130605 Termination date: 20151203 |
|
| EXPY | Termination of patent right or utility model |