CN102839936A - Sealer for oilfield wellhead - Google Patents
Sealer for oilfield wellhead Download PDFInfo
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- CN102839936A CN102839936A CN2011102135739A CN201110213573A CN102839936A CN 102839936 A CN102839936 A CN 102839936A CN 2011102135739 A CN2011102135739 A CN 2011102135739A CN 201110213573 A CN201110213573 A CN 201110213573A CN 102839936 A CN102839936 A CN 102839936A
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- main body
- sleeve
- sealing ring
- gland
- flange
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Abstract
The invention relates to a sealing device for an oilfield, and particularly relates to a sealer for an oilfield wellhead. The technical scheme is as follows: the sealer for the oilfield wellhead is mainly composed of a polish rod, a spherical seat, a main body, a sealing ring, a flange disc, a gland and a sleeve, wherein the polish rod is fixed among the spherical seat, the main body and the sleeve, the sealing ring is arranged between the polish rod and the sleeve, the arc part of the spherical seat is matched with the conical surface of the main body, the main body is sleeved to the lower end of the sleeve, the gland is arranged on the sealing ring, the flange is arranged on the upper end surface of the gland, and the flange is fixed with the sleeve via a bolt. The sealer for the oilfield wellhead disclosed by the invention has the advantages of being good in leak tightness, convenient for replacement operation for an oil pumping rod, reduced in wear, and convenient to be used together with other devices; and the spherical seat is matched with the main body, and a wellhead oil production tree is connected to the lower part of the spherical seat, and the end surface of the spherical seat is spherical and capable of being combined with the conical surface of the main body well, so that the problem of the eccentric wear of the polish rod and the sealing ring is reduced, and replacements for a packing are reduced.
Description
Technical field
The present invention relates to a kind of oil field and use sealing device, particularly a kind of oil field shaft mouth sealer.
Background technology
In the oil well repairing operation, mainly adopt packing that sucker rod is sealed at present, because packing and sucker rod sealing surface are cylindrical; Sealing device polished rod and packing eccentric wear phenomenon commonly used at present are serious, make packing impaired serious, and the life-span reduces; When changing packing, because packing is pressed in the packing box very closely, difficulty is big during replacing; Waste time and energy, influence field produces.
Summary of the invention
The object of the invention is exactly the above-mentioned defective that exists to prior art, and a kind of oil field shaft mouth sealer is provided, and good airproof performance is convenient to sucker rod and is changed operation, reduces wear.
Its technical scheme is: mainly be made up of polished rod, spheric seat, main body, sealing ring, flange, gland, sleeve; Polished rod is fixed between spheric seat, main body and the sleeve, is provided with sealing ring between polished rod and the sleeve, the circular arc portion of spheric seat and the cone match of main body; The lower end socket main body of sleeve; Gland places above the sealing ring, and the upper surface of gland is provided with flange, and flange and sleeve pass through bolt.
The invention has the beneficial effects as follows: good airproof performance; Be convenient to sucker rod and change operation; Reduce wear, convenient simultaneously and other devices are used, and match with main body through adopting spheric seat; The bottom of spheric seat connects the well head production tree, and the end face of spheric seat is spherical can the combination with the conical surface of main body preferably.Reduce the eccentric wear problem of polished rod and sealing ring, reduced the replacing of packing.
Description of drawings:
Accompanying drawing 1 is a structural representation of the present invention;
Last figure: polished rod 1, spheric seat 2, main body 3, sealing ring 4, flange 5, gland 6, cylindrical shell 7.
The specific embodiment:
In conjunction with accompanying drawing 1, the present invention is done further description:
The present invention mainly is made up of polished rod 1, spheric seat 2, main body 3, sealing ring 4, flange 5, gland 6, sleeve 7; Polished rod 1 is fixed between spheric seat 2, main body 3 and the sleeve 7, is provided with sealing ring 4 between polished rod 1 and the sleeve 7, the cone match of the circular arc portion of spheric seat 2 and main body 3; The lower end socket main body 3 of sleeve 7; Gland 6 places above the sealing ring 4, and the upper surface of gland 6 is provided with flange 5, and flange 5 passes through bolt with sleeve 7.
Through using this device; Can reach good airproof performance, be convenient to sucker rod and change operation, reduce wear; Convenient simultaneously and other devices are used; Through adopting spheric seat to match with main body, the bottom of spheric seat connects the well head production tree, and the end face of spheric seat is spherical can the combination with the conical surface of main body preferably.Reduce the eccentric wear problem of polished rod and sealing ring, reduced the replacing of packing.
Claims (1)
1. oil field shaft mouth sealer; It is characterized in that: mainly form by polished rod (1), spheric seat (2), main body (3), sealing ring (4), flange (5), gland (6), sleeve (7); Polished rod (1) is fixed between spheric seat (2), main body (3) and the sleeve (7), is provided with sealing ring (4) between polished rod (1) and the sleeve (7), the cone match of the circular arc portion of spheric seat (2) and main body (3); The lower end socket main body (3) of sleeve (7); Gland (6) places above the sealing ring (4), and the upper surface of gland (6) is provided with flange (5), and flange (5) passes through bolt with sleeve (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102135739A CN102839936A (en) | 2011-07-28 | 2011-07-28 | Sealer for oilfield wellhead |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011102135739A CN102839936A (en) | 2011-07-28 | 2011-07-28 | Sealer for oilfield wellhead |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102839936A true CN102839936A (en) | 2012-12-26 |
Family
ID=47367628
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011102135739A Pending CN102839936A (en) | 2011-07-28 | 2011-07-28 | Sealer for oilfield wellhead |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102839936A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2245114Y (en) * | 1995-09-15 | 1997-01-15 | 刘建国 | Sealer for well head |
| CA2260655A1 (en) * | 1999-02-02 | 2000-08-02 | Keith D. Farquharson | Wellhead production blowout preventer ram |
| CN2677597Y (en) * | 2003-09-08 | 2005-02-09 | 焦士俊 | Multi-steering anti-partial wear packing box |
| RU2347060C1 (en) * | 2007-07-12 | 2009-02-20 | Закрытое акционерное общество Научно-производственное предприятие ЗАО "НПП "СибБурМаш" | Estuarine rotary sealer |
| CN201236658Y (en) * | 2008-06-27 | 2009-05-13 | 山东宝世达石油装备制造有限公司 | Adjustable polished rod sealer |
| CN202202833U (en) * | 2011-07-28 | 2012-04-25 | 南通天华和睿科技创业有限公司 | Sealer of oil field well mouth |
-
2011
- 2011-07-28 CN CN2011102135739A patent/CN102839936A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2245114Y (en) * | 1995-09-15 | 1997-01-15 | 刘建国 | Sealer for well head |
| CA2260655A1 (en) * | 1999-02-02 | 2000-08-02 | Keith D. Farquharson | Wellhead production blowout preventer ram |
| CN2677597Y (en) * | 2003-09-08 | 2005-02-09 | 焦士俊 | Multi-steering anti-partial wear packing box |
| RU2347060C1 (en) * | 2007-07-12 | 2009-02-20 | Закрытое акционерное общество Научно-производственное предприятие ЗАО "НПП "СибБурМаш" | Estuarine rotary sealer |
| CN201236658Y (en) * | 2008-06-27 | 2009-05-13 | 山东宝世达石油装备制造有限公司 | Adjustable polished rod sealer |
| CN202202833U (en) * | 2011-07-28 | 2012-04-25 | 南通天华和睿科技创业有限公司 | Sealer of oil field well mouth |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20121226 |