CN204060602U - A kind of bimetallic (spring cone) seal formula casing head - Google Patents
A kind of bimetallic (spring cone) seal formula casing head Download PDFInfo
- Publication number
- CN204060602U CN204060602U CN201420360999.6U CN201420360999U CN204060602U CN 204060602 U CN204060602 U CN 204060602U CN 201420360999 U CN201420360999 U CN 201420360999U CN 204060602 U CN204060602 U CN 204060602U
- Authority
- CN
- China
- Prior art keywords
- ring
- main body
- mandrel type
- casing head
- type hanger
- 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
Landscapes
- Earth Drilling (AREA)
Abstract
The utility model relates to a kind of petroleum drilling and mining casing head, particularly a kind of bimetallic (spring cone) seal formula casing head.The lid flange of this device is connected with casing head body, and casing hanger assembly is arranged in lid flange and casing head body, casing hanger assembly comprises mandrel type hanger main body, the upper end step of mandrel type hanger main body is set with upper press ring successively, upper metallic packing ring and upper supporting ring, mandrel type hanger main body is sealed by the conical surface of inboard wall of upper metallic packing ring and lid flange, mandrel type hanger body outer wall by installing FS sealing ring and upper supporting ring lower end on the inwall of lid flange seals, the lower end step of mandrel type hanger main body is set with lower pressure ring successively, lower metallic packing ring, lower support ring and locking nut, mandrel type hanger main body is sealed by the conical surface of inboard wall of lower metallic packing ring and casing head body.It is strong that the utility model achieves corrosion resistance, and sealing is reliable, long service life, improves the safety of oil-gas mining.
Description
Technical field:
The utility model relates to a kind of petroleum drilling and mining casing head, particularly a kind of bimetallic (spring cone) seal formula casing head.
Background technology:
In petroleum drilling and mining process, casing head is widely used, and sleeve pipe hang mainly contains mandrel type and slip-type.The main at present hermetically-sealed construction of mandrel type hanger has: compression primary seal, and compression primary seal and " O " RunddichtringO assist secondary seal, compression primary seal secondary seal auxiliary with " BT ", metal primary seal and rubber auxiliary seal; When sulfide hydrogen gas recovery well is exploited for a long time, " BT " secondary seal or " O " RunddichtringO assist the effect of secondary seal to lose efficacy, acid medium very easily corrodes jackscrew sealing (building rubber compound) and produces leak point, scene is very difficult takes other remedial measure, can only kill-job, closing well.Serious threat Well site safety, affects oil-gas mining.
Utility model content:
The technical problems to be solved in the utility model is to provide a kind of bimetallic (spring cone) seal formula casing head, the arrangement achieves corrosion resistance strong, and sealing is reliable, long service life, improves the safety of oil-gas mining.Overcome existing mandrel type hanger hermetically-sealed construction to be easily corroded, easily produce leak point, affect the deficiency of oil-gas mining.
Technical solution adopted in the utility model is: a kind of bimetallic (spring cone) seal formula casing head, and comprise lid flange, casing hanger assembly and casing head body, lid flange is connected with casing head body, and casing hanger assembly is arranged in lid flange and casing head body, casing hanger assembly comprises mandrel type hanger main body, the upper end step of mandrel type hanger main body is set with upper press ring successively, upper metallic packing ring and upper supporting ring, mandrel type hanger main body is sealed by the conical surface of inboard wall of upper metallic packing ring and lid flange, mandrel type hanger body outer wall by installing FS sealing ring and upper supporting ring lower end on the inwall of lid flange seals, the lower end step of mandrel type hanger main body is set with lower pressure ring successively, lower metallic packing ring, lower support ring and locking nut, mandrel type hanger main body is sealed by the conical surface of inboard wall of lower metallic packing ring and casing head body, casing head body sidewall is provided with location anti-rotation seal group, location anti-rotation seal group comprises shop bolt, shop bolt front end extend in mandrel type hanger main body central slot, between shop bolt front end and mandrel type hanger main body, dust-proof seal ring is installed, shop bolt outer end is set with lower seal pad from inside to outside successively, airtight and watertight padding, upper sealing mat and pressure cap.
The beneficial effects of the utility model are: the utility model, owing to have employed the mode of bimetallic (spring cone) seal and FS sealing ring, thus has the advantage that corrosion resistance is strong, and sealing is reliable, long service life, improve the safety of oil-gas mining.
Accompanying drawing illustrates:
Below in conjunction with the drawings and specific embodiments, the utility model is described in more detail.
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the structural representation of casing hanger assembly.
Fig. 3 is the structural representation of location anti-rotation seal group.
Detailed description of the invention:
As shown in Figure 1, Figure 2, Figure 3 shows, a kind of bimetallic (spring cone) seal formula casing head, comprise lid flange 1, casing hanger assembly 3 and casing head body 5, lid flange 1 is connected with casing head body 5, and casing hanger assembly 3 is arranged in lid flange 1 and casing head body 5, casing hanger assembly 3 comprises mandrel type hanger main body 6, the upper end step of mandrel type hanger main body 6 is set with upper press ring 7 successively, upper metallic packing ring 8 and upper supporting ring 9, mandrel type hanger main body 6 is sealed with the conical surface of inboard wall of lid flange 1 by upper metallic packing ring 8, the inwall of lid flange 1 seals with mandrel type hanger main body 6 outer wall of upper supporting ring 9 lower end by installing FS sealing ring 2, the lower end step of mandrel type hanger main body 6 is set with lower pressure ring 10 successively, lower metallic packing ring 11, lower support ring 12 and locking nut 13, mandrel type hanger main body 6 is sealed with the conical surface of inboard wall of casing head body 5 by lower metallic packing ring 11, casing head body 5 sidewall is provided with location anti-rotation seal group 4, location anti-rotation seal group 4 comprises shop bolt 14, shop bolt 14 front end extend in mandrel type hanger main body 6 central slot, dust-proof seal ring 19 is installed between shop bolt 14 front end and mandrel type hanger main body 6, shop bolt 14 outer end is set with lower seal pad 18 from inside to outside successively, airtight and watertight padding 17, upper sealing mat 16 and pressure cap 15.Location anti-rotation seal group 4 has dust-proof, preventing covering upside down effect.
Be understandable that, above about specific descriptions of the present utility model, the technical scheme described by the utility model embodiment is only not limited to for illustration of the utility model, those of ordinary skill in the art is to be understood that, still can modify to the utility model or equivalent replacement, to reach identical technique effect; Needs are used, all within protection domain of the present utility model as long as meet.
Claims (1)
1. a bimetallic (spring cone) seal formula casing head, comprise lid flange (1), casing hanger assembly (3) and casing head body (5), lid flange (1) is connected with casing head body (5), and casing hanger assembly (3) is arranged in lid flange (1) and casing head body (5), it is characterized in that: casing hanger assembly (3) comprises mandrel type hanger main body (6), the upper end step of mandrel type hanger main body (6) is set with successively upper press ring (7), upper metallic packing ring (8) and upper supporting ring (9), mandrel type hanger main body (6) is sealed by the conical surface of inboard wall of upper metallic packing ring (8) with lid flange (1), the inwall of lid flange (1) seals with mandrel type hanger main body (6) outer wall of upper supporting ring (9) lower end by installing FS sealing ring (2), the lower end step of mandrel type hanger main body (6) is set with successively lower pressure ring (10), lower metallic packing ring (11), lower support ring (12) and locking nut (13), mandrel type hanger main body (6) is sealed by the conical surface of inboard wall of lower metallic packing ring (11) with casing head body (5), casing head body (5) sidewall is provided with location anti-rotation seal group (4), location anti-rotation seal group (4) comprises shop bolt (14), shop bolt (14) front end extend in mandrel type hanger main body (6) central slot, dust-proof seal ring (19) is installed between shop bolt (14) front end and mandrel type hanger main body (6), shop bolt (14) outer end is set with lower seal pad (18) from inside to outside successively, airtight and watertight padding (17), upper sealing mat (16) and pressure cap (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420360999.6U CN204060602U (en) | 2014-07-01 | 2014-07-01 | A kind of bimetallic (spring cone) seal formula casing head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420360999.6U CN204060602U (en) | 2014-07-01 | 2014-07-01 | A kind of bimetallic (spring cone) seal formula casing head |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204060602U true CN204060602U (en) | 2014-12-31 |
Family
ID=52202140
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420360999.6U Active CN204060602U (en) | 2014-07-01 | 2014-07-01 | A kind of bimetallic (spring cone) seal formula casing head |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204060602U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847295A (en) * | 2015-04-10 | 2015-08-19 | 西南石油大学 | Mandrel-type hanger capable of replacing failure metal sealing part after well cementation |
| CN105507850A (en) * | 2016-01-19 | 2016-04-20 | 中国石油集团渤海石油装备制造有限公司 | Metal-sealed fracturing shale gas production wellhead |
| CN106761528A (en) * | 2016-12-19 | 2017-05-31 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | One kind can compensate for X-type metal sealing cushion ring casing head |
| CN107387015A (en) * | 2017-08-24 | 2017-11-24 | 中国石油集团渤海石油装备制造有限公司 | A kind of sealed casing head of HTHP MULTIPLE COMPOSITE |
| CN108412449A (en) * | 2018-03-10 | 2018-08-17 | 西南石油大学 | A kind of all-metal is multistage and waits the mandrel type hanger of cone sealing structure |
| CN108561097A (en) * | 2018-03-10 | 2018-09-21 | 重庆新泰机械有限责任公司 | A kind of 3U types multistage all-metal sealing mandrel type hanger |
| CN114112235A (en) * | 2020-08-31 | 2022-03-01 | 中国石油天然气股份有限公司 | Mandrel type casing hanger testing device |
-
2014
- 2014-07-01 CN CN201420360999.6U patent/CN204060602U/en active Active
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104847295A (en) * | 2015-04-10 | 2015-08-19 | 西南石油大学 | Mandrel-type hanger capable of replacing failure metal sealing part after well cementation |
| CN105507850A (en) * | 2016-01-19 | 2016-04-20 | 中国石油集团渤海石油装备制造有限公司 | Metal-sealed fracturing shale gas production wellhead |
| CN106761528A (en) * | 2016-12-19 | 2017-05-31 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | One kind can compensate for X-type metal sealing cushion ring casing head |
| CN106761528B (en) * | 2016-12-19 | 2019-06-21 | 宝鸡石油机械有限责任公司广汉钻采设备厂 | One kind can compensate for X-type metal sealing cushion ring casing head |
| CN107387015A (en) * | 2017-08-24 | 2017-11-24 | 中国石油集团渤海石油装备制造有限公司 | A kind of sealed casing head of HTHP MULTIPLE COMPOSITE |
| CN108412449A (en) * | 2018-03-10 | 2018-08-17 | 西南石油大学 | A kind of all-metal is multistage and waits the mandrel type hanger of cone sealing structure |
| CN108561097A (en) * | 2018-03-10 | 2018-09-21 | 重庆新泰机械有限责任公司 | A kind of 3U types multistage all-metal sealing mandrel type hanger |
| CN114112235A (en) * | 2020-08-31 | 2022-03-01 | 中国石油天然气股份有限公司 | Mandrel type casing hanger testing device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204060602U (en) | A kind of bimetallic (spring cone) seal formula casing head | |
| CN202520265U (en) | Gas production well head device with metallic seals | |
| CN201606024U (en) | All-metal sealing oil-gas wellhead device | |
| CN205225152U (en) | Metal seal wellhead assembly | |
| CN107387015A (en) | A kind of sealed casing head of HTHP MULTIPLE COMPOSITE | |
| CN204002674U (en) | A kind of metallic combination sealing shroud tube head | |
| CN201738915U (en) | Sealing and suppressing device of well sealing device for oil field | |
| CN202100220U (en) | Oil pipe and casing hanger with controllable sealing performance | |
| CN204532248U (en) | A kind of embedded gate valve type Dual tubing heat extraction wellhead | |
| CN103452515A (en) | Wellhead bimetal seal assembly | |
| CN204646172U (en) | Pressure sealing casing head can be repaired | |
| CN207278233U (en) | A kind of sealed casing head of high temperature and pressure MULTIPLE COMPOSITE | |
| CN105443067A (en) | Metal sealing tubing hanger for fracturing and gas recovery wellhead | |
| CN203097772U (en) | Ultra-deep well mandrel type sleeve hanging device | |
| CN203742531U (en) | Novel semi-combination expanding packer rubber sleeve | |
| CN205297442U (en) | Fracturing, gas production metal seal's for well head tubing hanger | |
| CN204691696U (en) | A kind of high-temperature metal sealing petroleum tube connector | |
| CN108019179A (en) | A kind of metal sealing component and boll-weevil hanger | |
| CN204024571U (en) | high-pressure gas well casing head | |
| CN105507850A (en) | Metal-sealed fracturing shale gas production wellhead | |
| CN203742520U (en) | Integrally-detachable stagewise sleeve head | |
| CN202560149U (en) | Full metal seal slip type sleeve head | |
| CN206376781U (en) | A kind of metal sealing hanging device of oil sleeve | |
| CN205330615U (en) | Metal seal shale atmospheric pressure splits gas production well head | |
| CN101514616B (en) | Low pre-tightening force adjustable heat extraction packing box |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20201023 Address after: 100007 Beijing, Dongzhimen, North Street, No. 9, No. Patentee after: CHINA NATIONAL PETROLEUM Corp. Patentee after: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. Address before: 300457 Binhai New Area, Tianjin Binhai Service Outsourcing Industrial Park, building 3 Patentee before: CNPC Bohai Petroleum Equipment Manufacturing Co.,Ltd. |
|
| TR01 | Transfer of patent right |