CN202348206U - Leakage-proof and blowout-proof device for wellhead packing box - Google Patents
Leakage-proof and blowout-proof device for wellhead packing box Download PDFInfo
- Publication number
- CN202348206U CN202348206U CN2011203646243U CN201120364624U CN202348206U CN 202348206 U CN202348206 U CN 202348206U CN 2011203646243 U CN2011203646243 U CN 2011203646243U CN 201120364624 U CN201120364624 U CN 201120364624U CN 202348206 U CN202348206 U CN 202348206U
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- China
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- packing
- packing box
- cap
- proof
- wellhead
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- Expired - Fee Related
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Abstract
The utility model provides a leakage-proof and blowout-proof device for a wellhead packing box. The leakage-proof and blowout-proof device for a wellhead packing box is suitable for all pumping wells which need mechanical oil production, are provided with polish rods moving up and down, and need to seal the packing. The device consists of an upper press cap, seal packing, follow-up packing, a master control press cap, a lubricating oil room, an emptying short section, a screwed plug and a lower press cap. The seal packing is tightly pressed by the upper press cap, and the upper, the lower and the outer side of the follow-up packing have a certain gap, so that the follow-up packing can move along with the polish rod up and down and can be finely tuned left and right, and attachments and the like on the wall of the polish rod can be scraped; the lubricating oil room can be internally filled with lubricating oil, and the press caps of the wellhead packing boxes of all types can be improved; and the lower press cap of the device is directly connected with the wellhead packing box, so that all the characteristics of the used wellhead packing box can not be influenced. The device is practical, convenient, simple in structure, and high in the use ratio of packing in the packing box; the packing in the packing box does not need changing, so that the cost can be saved, the labor intensity of workers can be reduced, and the well stop time can be reduced; the device has the functions of sealing, polish rod lubricating, leakage control and blowout control; and the device is applicable to the requirements of 'safety and environment protection'.
Description
Technical field
The utility model relates to the petroleum recovering field, and a kind of all mechanical oil recoverys and polished rod of being applicable to is to move up and down to need the pumpingh well of packing_seal well head packing box leakproof preventer.
Background technology
The on-the-spot pumpingh well wellhead polish rod sealer that uses of oil-field thick-oil exploitation at present has many kinds of models; Primary seal and secondary seal are arranged, and function is identical, effect is the same; Packing also has numerous species; Therefore still have no idea to solve the phenomenon of leakage of oil, blowout, increased working strength of workers, cost of idleness, dangerous, not environmental protection.Do not dry grind because produce between polished rod and the packing during fuel-displaced for intermittently fuel-displaced well; The packing that is easy to grind away runs oil; And high temperature also can destroy the coating on polished rod surface; Some acidity or alkaline matter also can corrode the polished rod surface in the oil well simultaneously, also can cause sealing effectiveness bad, shorten the application life of polished rod.
Summary of the invention
The purpose of the utility model be to overcome the shortcoming of prior art and provide a kind ofly can effectively solve wellhead polish rod and misalign, polished rod dry grinding packing provided polished rod lubricated when polished rod eccentric wear, polished rod sealer leakage of oil and oil well were intermittently fuel-displaced; Effectively seal polished rod; Prevent the generation of leakage of oil or blowout phenomenon, increase the application life of packing and polished rod, guarantee equipment cleaning; Prevent the pollution of the environment the well head packing box leakproof preventer that reduces production costs.
The technical scheme that the utility model adopts is: well head packing box leakproof preventer, to form by upper pressing cap, sealed packing, servo-actuated packing, main control pressure cap, oil chamber, emptying pipe nipple, plug, lower pressing cap, and the middle part of this device is penetrated with polished rod (1); Upper pressing cap (2) is connected with main control pressure cap (5); Main control pressure cap (5) is connected with lower pressing cap (11), and upper pressing cap (2) compresses on the sealed packing (3), and sealed packing (3) compresses on the main control pressure cap (5); Servo-actuated packing (4) is arranged at main control pressure cap (5) top; Emptying pipe nipple (9) is connected with main control pressure cap (5), and plug (10) is connected with main control pressure cap (5), and the oil chamber is arranged at lower pressing cap (11) top
(6), lower pressing cap (11) is connected with the well head packing box, and overfall (7) and guiding gutter (8) are arranged between main control pressure cap (5) and lower pressing cap (11).
The utility model is practical and convenient, simple in structure, and the interior packing utilization rate of polished rod and packing box is high, practices thrift cost, alleviates labor strength, reduces and stops the well time, has sealing, lubricated polished rod, leakproof, blowout prevention function, the needs of adaptation " safety and environmental protection ".
Description of drawings
Accompanying drawing is the structural representation of the utility model.
The specific embodiment
Shown in accompanying drawing; Be made up of polished rod (1), upper pressing cap (2), sealed packing (3), servo-actuated packing (4), main control pressure cap (5), oil chamber (6), overfall (7), guiding gutter (8), emptying pipe nipple (9), plug (10), lower pressing cap (11), the polished rod (1) that is positioned at the middle part runs through this device from top to bottom, and upper pressing cap (2) is threaded with main control pressure cap (5); Main control pressure cap (5) is threaded with lower pressing cap (11); Upper pressing cap (2) compresses sealed packing (3), and sealed packing (3) compresses main control pressure cap (5), and servo-actuated packing (4) is arranged at main control pressure cap (5) top; Emptying pipe nipple (9) is connected with main control pressure cap (5); Plug (10) is connected with main control pressure cap (5), and lower pressing cap (11) is connected with well head packing box external screw thread, and oil chamber (6) is arranged at lower pressing cap (11) top.
The oil chamber can adorn lubrication oil, thereby polished rod is lubricated in the process of moving up and down, and forms one deck lubrication oil diaphragm on the polished rod surface; Guaranteed the polished rod packing of not dry grinding; Also slowed down the soda acid thing corrosion surperficial in the well,, can also get in the guiding gutter through the overfall of oil chamber and discharged by the emptying pipe nipple simultaneously from well head packing box oil spill to polished rod; Emptying pipe nipple place can connect flexible rubber hose; Flexible rubber hose root people wellhead sampling is drained the oil in the bucket, and barrel interior crude oil of draining the oil is recyclable, does not pollute the environment.
Use our well head packing box leakproof preventer, reduced well head and run oil, guaranteed safety and environmental protection, prolonged polished rod life-span and the cycle of changing packing, dropped to working strength of workers greatly, improved operating efficiency.
Claims (1)
1. well head packing box leakproof preventer; It comprises polished rod (1), upper pressing cap (2), sealed packing (3), servo-actuated packing (4), main control pressure cap (5), oil chamber (6), overfall (7), guiding gutter (8), emptying pipe nipple (9), plug (10), pressure cap; It is characterized by: the middle part of this device is penetrated with polished rod (1), and upper pressing cap (2) is connected with main control pressure cap (5), and main control pressure cap (5) is connected with lower pressing cap (11); Upper pressing cap (2) compresses on the sealed packing (3); Sealed packing (3) compresses on the main control pressure cap (5), and servo-actuated packing (4) is arranged at main control pressure cap (5) top, and emptying pipe nipple (9) is connected with main control pressure cap (5); Plug (10) is connected with main control pressure cap (5); Oil chamber (6) is arranged at lower pressing cap (11) top, and lower pressing cap (11) is connected with the well head packing box, and overfall (7) and guiding gutter (8) are arranged between main control pressure cap (5) and lower pressing cap (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203646243U CN202348206U (en) | 2011-09-25 | 2011-09-25 | Leakage-proof and blowout-proof device for wellhead packing box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203646243U CN202348206U (en) | 2011-09-25 | 2011-09-25 | Leakage-proof and blowout-proof device for wellhead packing box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202348206U true CN202348206U (en) | 2012-07-25 |
Family
ID=46537215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203646243U Expired - Fee Related CN202348206U (en) | 2011-09-25 | 2011-09-25 | Leakage-proof and blowout-proof device for wellhead packing box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202348206U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912510A (en) * | 2015-04-27 | 2015-09-16 | 大庆宏测技术服务有限公司 | Overflow reinjection blowout prevention system of injection well |
-
2011
- 2011-09-25 CN CN2011203646243U patent/CN202348206U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104912510A (en) * | 2015-04-27 | 2015-09-16 | 大庆宏测技术服务有限公司 | Overflow reinjection blowout prevention system of injection well |
| CN104912510B (en) * | 2015-04-27 | 2017-11-07 | 大庆宏测技术服务有限公司 | Injection well overflow re-injection spraying-preventing system |
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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: 20120725 Termination date: 20130925 |