CN111852377B - Wellhead assembly - Google Patents
Wellhead assembly Download PDFInfo
- Publication number
- CN111852377B CN111852377B CN202010701088.5A CN202010701088A CN111852377B CN 111852377 B CN111852377 B CN 111852377B CN 202010701088 A CN202010701088 A CN 202010701088A CN 111852377 B CN111852377 B CN 111852377B
- Authority
- CN
- China
- Prior art keywords
- lower shell
- sealing
- screw rod
- wellhead
- oil
- Prior art date
- 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.)
- Active
Links
- 238000007789 sealing Methods 0.000 claims abstract description 83
- 238000000605 extraction Methods 0.000 claims abstract description 19
- 230000001681 protective effect Effects 0.000 claims abstract description 13
- 238000011084 recovery Methods 0.000 claims abstract 6
- 230000002457 bidirectional effect Effects 0.000 claims description 23
- 238000004519 manufacturing process Methods 0.000 claims description 16
- 230000008719 thickening Effects 0.000 claims description 9
- 241000191291 Abies alba Species 0.000 abstract description 5
- 238000005553 drilling Methods 0.000 abstract description 3
- 239000007789 gas Substances 0.000 description 7
- 239000003129 oil well Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000003209 petroleum derivative Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Images
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B33/00—Sealing or packing boreholes or wells
- E21B33/02—Surface sealing or packing
- E21B33/03—Well heads; Setting-up thereof
Landscapes
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Geology (AREA)
- Mining & Mineral Resources (AREA)
- Physics & Mathematics (AREA)
- Environmental & Geological Engineering (AREA)
- Fluid Mechanics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Earth Drilling (AREA)
Abstract
Description
Claims (8)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010701088.5A CN111852377B (en) | 2020-07-20 | 2020-07-20 | Wellhead assembly |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202010701088.5A CN111852377B (en) | 2020-07-20 | 2020-07-20 | Wellhead assembly |
Publications (2)
Publication Number | Publication Date |
---|---|
CN111852377A CN111852377A (en) | 2020-10-30 |
CN111852377B true CN111852377B (en) | 2021-04-27 |
Family
ID=73001629
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202010701088.5A Active CN111852377B (en) | 2020-07-20 | 2020-07-20 | Wellhead assembly |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN111852377B (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112682001B (en) * | 2020-12-30 | 2022-07-19 | 山西工程技术学院 | Coal mine inclined large-diameter drill hole sealing method based on hand-driven connecting rod telescopic positioning |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN2101103U (en) * | 1991-08-15 | 1992-04-08 | 河南石油勘探局第二采油厂 | Well and smooth sealing device for hot power petroleum exploitation well |
US5203409A (en) * | 1992-01-27 | 1993-04-20 | Cooper Industries, Inc. | Geothermal well apparatus and eccentric hanger spool therefor |
CN2771467Y (en) * | 2004-12-26 | 2006-04-12 | 中国石化胜利油田有限公司海洋石油开发公司 | Screw pump well repair operation blow-out preventer |
CN2761826Y (en) * | 2005-01-28 | 2006-03-01 | 金丽杰 | Multifunction well enclosing device |
CN2906042Y (en) * | 2006-05-15 | 2007-05-30 | 卢占峰 | Double-seal automatically-enclosed type blowout preventer |
CN201802343U (en) * | 2010-09-27 | 2011-04-20 | 中国石油天然气股份有限公司 | Wellhead double-sealing high-pressure valve |
RU2606471C1 (en) * | 2015-10-08 | 2017-01-10 | Общество с ограниченной ответственностью "Электро" | Quick-detachable wellhead check valve |
CN208122800U (en) * | 2018-04-17 | 2018-11-20 | 盐城市骊麟石油机械有限公司 | A kind of well mouth sealing device |
CN108412448A (en) * | 2018-06-11 | 2018-08-17 | 大庆市鹏翔石油科技有限公司 | Micro- profit two-restriction double-seal double wellhead assembly |
CN210829158U (en) * | 2019-10-23 | 2020-06-23 | 东营市三和石油装备有限公司 | Controllable well plugging tool |
-
2020
- 2020-07-20 CN CN202010701088.5A patent/CN111852377B/en active Active
Also Published As
Publication number | Publication date |
---|---|
CN111852377A (en) | 2020-10-30 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PB01 | Publication | ||
PB01 | Publication | ||
SE01 | Entry into force of request for substantive examination | ||
SE01 | Entry into force of request for substantive examination | ||
TA01 | Transfer of patent application right |
Effective date of registration: 20210408 Address after: 163000 No.4, Beiyi Road, Huoju village, Saertu District, Daqing City, Heilongjiang Province Applicant after: DALIAN SHENGWEI MACHINERY MANUFACTURING Co.,Ltd. Address before: 151600 group 13, Xinjian Street 1st Committee, Qinggang Town, Qinggang County, Suihua City, Heilongjiang Province Applicant before: Xi Xiaoping |
|
TA01 | Transfer of patent application right | ||
GR01 | Patent grant | ||
GR01 | Patent grant | ||
TR01 | Transfer of patent right |
Effective date of registration: 20230406 Address after: 163000 Guangming Industrial Park, Longfeng District, Daqing City, Heilongjiang Province Patentee after: DAQING RUISIDE PETROLEUM MACHINERY MANUFACTURING CO.,LTD. Address before: 163000 No.4, Beiyi Road, Huoju village, Saertu District, Daqing City, Heilongjiang Province Patentee before: DALIAN SHENGWEI MACHINERY MANUFACTURING Co.,Ltd. |
|
TR01 | Transfer of patent right |