CN202176302U - Multi-level security sealing and centering wellhead device - Google Patents
Multi-level security sealing and centering wellhead device Download PDFInfo
- Publication number
- CN202176302U CN202176302U CN2011203260534U CN201120326053U CN202176302U CN 202176302 U CN202176302 U CN 202176302U CN 2011203260534 U CN2011203260534 U CN 2011203260534U CN 201120326053 U CN201120326053 U CN 201120326053U CN 202176302 U CN202176302 U CN 202176302U
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- China
- Prior art keywords
- packing
- sealing
- wellhead
- centering
- packing box
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- 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
The utility model provides a multi-level security sealing and centering wellhead device, relating to a wellhead sealing device of a rod pumping well. The device is composed of a packing box, an eccentric centering disc and an anti-spraying ball; an oil dripping umbrella is additionally arranged on a packing pressing cap of the packing box and the root part of the oil dripping umbrella is sleeved with an oil accepting box; and a tubular column between the packing box and the eccentric centering disc is connected with a wellhead sealing adjustment valve. The wellhead sealing adjustment valve is in a bilateral symmetry shape; a valve rod is embedded into a valve body and an umbrella-shaped gear at the inner end of the valve rod is engaged with the gear at the upper edge of a swivel nut; an inner wall screw buckle of the swivel nut is matched with an outer wall screw buckle of a pressing sleeve and the pressing sleeve is used for tightly pressing and sealing a packing. The multi-safety sealing and centering wellhead device provided by the utility model has the advantages of rational design, safety, energy saving and environmental friendliness. As the multi-level security sealing treatment is designed, the safety of the work is increased; the packing box and a polish rod are arranged on the same straight line due to the design of a centering device, so that the wellhead packing is prevented from the eccentric wear. The multi-level security sealing and centering wellhead device has the advantages of uniform stress in the process of working, no eccentric wear, no leakage, no environmental pollution, and capability of prolonging the service life of the packing.
Description
Technical field
The utility model relates to the rod-pumped well well mouth sealing device, relates in particular to wellhead assembly in a kind of maltilevel security sealing accent.
Background technology
During oil producing operation, well head sealing and eccentric wear directly affect the operating efficiency of oil recovery, and the installation of the oil pumping unit base that has is difficult to realize fully overlapping of polished rod axis and well head axis, causes oil pumper polished rod generation lateral shift in the process that turns round.Very easily cause the suspension point track and the tubing string axis of oil pumper to depart from, cause the flat eccentric wear of sucker rod in the oil recovery process, therefore, the well head packing box is main anti-inclined to one side, blowout prevention instrument.And existing packing box exists the tuningout weak effect owing to unreasonable structure, and the packing utilization rate is low, the replacing packing cycle is short, prolongs maintenance time, and production efficiency is low.
Summary of the invention
The utility model is intended to overcome the deficiency of prior art, wellhead assembly during a kind of maltilevel security sealing that provides is transferred.
Wellhead assembly during the maltilevel security sealing of the utility model is transferred; Be to constitute by packing box, eccentric mid-game and the spray-proof ball transferred; On the packing pressure cap of packing box, set up the oil dripping umbrella; At the root suit of oil dripping umbrella swab case, transfer at packing box and eccentric between the tubing string of mid-game to have connected the well head sealed-regulating valve.
Further improvement as the utility model; Described well head sealed-regulating valve is the bilateral symmetric form, is in valve body, to embed valve rod, and the bevel gear of the inner of valve rod is meshed with the gear of swivel nut upper edge; The inwall spiral shell button of swivel nut matches with the outer wall spiral shell button of gland, and gland compresses sealed packing.
Wellhead assembly during the sealing of the maltilevel security of the utility model is transferred, reasonable in design, safety, energy-conserving and environment-protective owing to designed multi-sealed processing, have increased the safety of work; Design of device in the accent; Make packing box and polished rod point-blank; Prevented well head packing eccentric wear, as run into polished rod and fracture that spray-proof ball can be sealed the effect that blowout prevention is played in outlet; In the utility model when work, is stressed evenly, not eccentric wear, do not leak, free from environmental pollution, application life of having prolonged packing.
Description of drawings
Fig. 1 is the longitudinal sectional drawing of the utility model.
The specific embodiment
The further introduction of doing below in conjunction with 1 pair of the utility model of accompanying drawing.
Wellhead assembly during the maltilevel security sealing of the utility model is transferred is to be made up of packing box 1, eccentric mid-game 2 and the spray-proof ball 3 transferred.On the packing pressure cap 4 of packing box 1, set up oil dripping umbrella 5, at the root suit of oil dripping umbrella 5 swab case 6, transfer at packing box 1 and eccentric between the tubing string of mid-game 2 to have connected well head sealed-regulating valve 7.Described well head sealed-regulating valve 7 is the bilateral symmetric form; Be in valve body 8, to embed valve rod 9; The bevel gear 10 of the inner of valve rod 9 is meshed with the gear of swivel nut 11 upper edges, and the inwall spiral shell button of swivel nut 11 matches with the outer wall spiral shell button of gland 12, and gland 12 compresses sealed packing 13.
Claims (2)
1. wellhead assembly during the maltilevel security sealing is transferred; Be to constitute by packing box (1), eccentric mid-game (2) and the spray-proof ball (3) transferred; It is characterized in that having set up oil dripping umbrella (5) on the packing pressure cap (4) of packing box (1); At the root suit of oil dripping umbrella (5) swab case (6), transfer at packing box (1) and eccentric between the tubing string of mid-game (2) to have connected well head sealed-regulating valve (7).
2. wellhead assembly during maltilevel security sealing as claimed in claim 1 is transferred; It is characterized in that well head sealed-regulating valve (7) is the bilateral symmetric form; Be in valve body (8), to embed valve rod (9); The bevel gear (10) of the inner of valve rod (9) is meshed with the gear of swivel nut (11) upper edge, and the inwall spiral shell button of swivel nut (11) matches with the outer wall spiral shell button of gland (12), and gland (12) compresses sealed packing (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203260534U CN202176302U (en) | 2011-09-01 | 2011-09-01 | Multi-level security sealing and centering wellhead device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203260534U CN202176302U (en) | 2011-09-01 | 2011-09-01 | Multi-level security sealing and centering wellhead device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202176302U true CN202176302U (en) | 2012-03-28 |
Family
ID=45866187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203260534U Expired - Fee Related CN202176302U (en) | 2011-09-01 | 2011-09-01 | Multi-level security sealing and centering wellhead device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202176302U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691488A (en) * | 2012-06-21 | 2012-09-26 | 王亚祥 | Device and method for sealing opening of oil well by dynamic plastic injection of packing |
| CN103233697A (en) * | 2013-04-26 | 2013-08-07 | 中国石油天然气股份有限公司 | Oil well mouth blowout preventing device |
-
2011
- 2011-09-01 CN CN2011203260534U patent/CN202176302U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102691488A (en) * | 2012-06-21 | 2012-09-26 | 王亚祥 | Device and method for sealing opening of oil well by dynamic plastic injection of packing |
| CN102691488B (en) * | 2012-06-21 | 2015-08-26 | 王亚祥 | Anomalous character plastic cement injects packing_seal wellhead assembly and method |
| CN103233697A (en) * | 2013-04-26 | 2013-08-07 | 中国石油天然气股份有限公司 | Oil well mouth blowout preventing device |
| CN103233697B (en) * | 2013-04-26 | 2015-08-05 | 中国石油天然气股份有限公司 | Well mouth of oil well blowout hookup |
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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: 20120328 Termination date: 20120901 |