CN103967436A - Underwater wellhead mud line hanger - Google Patents
Underwater wellhead mud line hanger Download PDFInfo
- Publication number
- CN103967436A CN103967436A CN201410209320.8A CN201410209320A CN103967436A CN 103967436 A CN103967436 A CN 103967436A CN 201410209320 A CN201410209320 A CN 201410209320A CN 103967436 A CN103967436 A CN 103967436A
- Authority
- CN
- China
- Prior art keywords
- casing hanger
- ring
- hanger
- assembly
- casing
- 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.)
- Pending
Links
- 238000007789 sealing Methods 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims description 16
- 238000005553 drilling Methods 0.000 claims description 9
- 210000001503 joint Anatomy 0.000 claims description 3
- 238000000034 method Methods 0.000 claims description 3
- 239000000203 mixture Substances 0.000 claims description 2
- 238000004140 cleaning Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 210000000664 rectum Anatomy 0.000 description 2
- 239000000725 suspension Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- RAFZYSUICBQABU-HMMYKYKNSA-N Phytal Chemical compound CC(C)CCCC(C)CCCC(C)CCC\C(C)=C\C=O RAFZYSUICBQABU-HMMYKYKNSA-N 0.000 description 1
- RAFZYSUICBQABU-QYLFUYDXSA-N Phytal Natural products CC(C)CCC[C@@H](C)CCC[C@@H](C)CCC\C(C)=C/C=O RAFZYSUICBQABU-QYLFUYDXSA-N 0.000 description 1
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000003653 coastal water Substances 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- RAFZYSUICBQABU-UHFFFAOYSA-N phytenal Natural products CC(C)CCCC(C)CCCC(C)CCCC(C)=CC=O RAFZYSUICBQABU-UHFFFAOYSA-N 0.000 description 1
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- Earth Drilling (AREA)
Abstract
The invention discloses an underwater wellhead mud line hanger. The mud line hanger comprises a 20' guide pipe sit-hung joint (3), a 13.3/8' casing pipe hanger assembly (2), a 9.5/8' casing hanger assembly (1) and 20' guide pipes (4). The two 20' guide pipes (4) are connected through the 20' guide pipe sit-hung joint (3), the 13.3/8' casing pipe hanger assembly (2) is installed in the 20' guide pipe sit-hung joint (3), the 9.5/8' casing hanger assembly (1) is installed on the 13.3/8' casing pipe hanger assembly (2), and then the mud line hanger is formed. The mud line hanger is simple in structure, safe and reliable in sealing, stable in connection mode and long in service life.
Description
Technical field
The present invention relates to underwater well head, be specifically related to a kind of underwater well head mudline hanger.
Background technology
As everyone knows, China is always in starting state aspect the development and Application of ocean subsea equipment at present, and it is blank that mudline hanger still belongs at home.For this reason, analyze and research and make great efforts exploitation and belong to mud line wellhead assembly under the ocean water of China's independent intellectual property right and seem very important.Mud line suspension equipment belongs to a kind of particular requirement device in underwater well head, is applicable to phytal zone, coastal waters.When with seat bottom type drilling rig or the drilling well of platform mode, use mud line equipment to ensure drilling well, abandoned well and the tieback with respect to platform or underwater completion.
Summary of the invention
The object of the invention is to: a kind of underwater well head mudline hanger is provided, and this mud line suspension arrangement is simple in structure, and sealingly secure is reliable, and connecting mode is firm, long service life.
The scheme of technical solution problem of the present invention is: this mudline hanger comprises: 20 " conduit is sat hanging joint, 13.3/8 " casing hanger assembly, 9.5/8 " casing hanger assembly and 20 " conduit, two 20 " conduit is by 20 " conduits are sat hanging joint and are connected, 13.3/8 " casing hanger assembly is arranged on 20 " conduit is sat in hanging joint, on 9.5/8 " casing hanger assembly is arranged on 13.3/8 " casing hanger assembly, form mudline hanger, wherein, 20 " to sit hanging joint be Butt Joint to conduit, is that 13.3/8 " casing hanger assembly provides bearing surface with 45 ° of shoulders of carrying, 13.3/8 " casing hanger assembly is by 13.3/8 " casing hanger body, support ring and jump ring form, 13.3/8 " top of casing hanger body is sent into and is promoted screw thread and tieback and promote screw thread with hanger, while being connected for tie back tool with 5 ° of metal sealing taperings on hanger top, realize metal sealing, the support ring with circulation port supports 13.3/8 " casing hanger assembly is sat and hung over 20 " catheter interior, circulation port in drilling process for mud provides circulation canal, 9.5/8 " casing hanger assembly is by 9.5/8 " casing hanger body, elastic ring back-up ring, elastic ring, discharge ring and load-carrying ring composition, 9.5/8 " on casing hanger body with circulating opening, 9.5/8 " top of casing hanger body is sent into and is promoted screw thread and tieback lifting screw thread with hanger, while being connected for tie back tool with 5 ° of metal sealing taperings on hanger top, realize metal sealing, mud circulation while jointly providing mud circulation passage for drilling well with the circulating opening on mud circulation groove and casing hanger body on elastic ring back-up ring, elastic ring is for 9.5/8, and " seat of casing hanger body is hung, " casing hanger body is sat and is suspended to a rear locking positioning to discharge ring 9.5/8.
The present invention has the following advantages:
1, employing sleeve pipe hangs at seabed mud line face, has filled up domestic blank, and adopts sealing and hanger separate structure, after realization well cementation, seals again, and hanger sealing is more reliable, and is convenient to hanger maintenance in the future, has reduced the cost of oil exploitation.
2, the upper end of 13.3/8 " casing hanger body and 9.5/8 " casing hanger body is designed with two trapezoidal boxes that rotation direction is contrary, left-handed box is used for matching with landing sub and realizes the function of sending into of hanger, dextrorotation box is used for matching with tieback sub and realizes the tieback function of sleeve pipe, convenience quick for installation.
3,9.5/8 " the flexible baffle ring of casing hanger assembly band, on this baffle ring, with mud circulation groove, for well cementation circulation time provides circulation canal, and this baffle ring can play the effect of righting hanger in installation process, makes hanger more be conducive to sit and is suspended to position.
4,9.5/8 " casing hanger assembly is with elastic ring, and during through less latus rectum, this ring can shrink, while having crossed less latus rectum, can automatically spring open, and also 90 ° of the seat hanging platform of elastic ring shoulders, load-carrying properties are better.
5, the top of 13.3/8 " casing hanger assembly and 9.5/8 " casing hanger assembly is designed with metal sealing position, in the time matching with tie back tool joint, on 5 ° of conical surfaces, forms metal sealing effect, and relies on rubber seal auxiliary seal; Meanwhile, top and the bottom of the tie back tool joint coordinating with it are all designed with metal sealing position, have realized bidirectional metal sealing, for well head provides maximum pressure integrality, safe and reliable.
Brief description of the drawings
Fig. 1 is structural representation of the present invention.
" casing hanger assembly, 2,13.3/8 " casing hanger assembly, 3,20 in figure: 1,9.5/8 " conduit is sat hanging joint; 4,20 " conduit, 5,45 ° of shoulders, 6,13.3/8 " casing hanger body; 7 support rings, and 8, jump ring, 9,9.5/8 " casing hanger body, 10, elastic ring back-up ring, 11, elastic ring, 12, discharge ring, 13 load-carrying rings, 14,13.3/8 " sleeve pipe, 15,9.5/8 " sleeve pipe.
Detailed description of the invention
As shown in Figure 1, this mudline hanger comprises: 20 " conduit is sat hanging joint 3,13.3/8 " casing hanger assembly 2,9.5/8 " casing hanger assembly 1 and 20 " conduit 4, two 20 " conduit 4 is by 20 " conduits are sat hanging joint 3 and are connected, 13.3/8 " casing hanger assembly 2 is arranged on 20 " conduit is sat in hanging joint 3, on 9.5/8 " casing hanger assembly 1 is arranged on 13.3/8 " casing hanger assembly 2, form mudline hanger, wherein, 20 " to sit hanging joint 3 be Butt Joint to conduit, is that 13.3/8 " casing hanger assembly 2 provides bearing surface with carrying 45 ° of shoulders 5, 13.3/8 " casing hanger 2 assemblies are by 13.3/8 " casing hanger body 6, support ring 7 and jump ring 8 form, 13.3/8 " top of casing hanger body 6 is sent into and is promoted screw thread and tieback and promote screw thread with hanger, while being connected for tie back tool with 5 ° of metal sealing taperings on hanger body top, realize metal sealing, the support ring 7 with circulation port supports 13.3/8 " casing hanger assembly 2 is sat and hung over 20 " conduit 4 inside, circulation port in drilling process for mud provides circulation canal, 9.5/8 " casing hanger assembly 1 is by 9.5/8 " casing hanger body 9, elastic ring back-up ring 10, elastic ring 11, discharging ring 12 and load-carrying ring 13 forms, 9.5/8 " on casing hanger body 9 with circulating opening, 9.5/8 " top of casing hanger body 9 is sent into and is promoted screw thread and tieback lifting screw thread with hanger, while being connected for tie back tool with 5 ° of metal sealing taperings on hanger body top, realize metal sealing, mud circulation while jointly providing mud circulation passage for drilling well with the circulating opening on mud circulation groove and casing hanger body on elastic ring back-up ring 10, elastic ring 11 is for 9.5/8, and " seat of casing hanger body 9 is hung, " casing hanger body 9 is sat and is suspended to a rear locking positioning to discharge ring 12 9.5/8.
20 " conduit 4 is fixed under water by digging into mode; Be lowered to 13.3/8 " sleeve pipe 14; be threaded connection 13.3/8 by 13.3/8 " tie back tool is by 13.3/8 " casing hanger assembly 2 " on sleeve pipe, utilize the circulation well cementation of 13.3/8 " circulation port of the bracing ring of casing hanger assembly 2 realizes 13.3/8 " sleeve pipe 14; Be lowered to 9.5/8 " sleeve pipe 15 is threaded connection 9.5/8 by 9.5/8 " tie back tool is by 9.5/8 " casing hanger assembly 1 " on sleeve pipe 15, realize 9.5/8 " the circulation well cementation of sleeve pipe; After circulation well cementation finishes, use 13.3/8 " cleaning means and 9.5/8 " cleaning means respectively casing hanger, pipe inner wall to be cleaned; When interim abandoned well; fetch and deliver instrument by interim abandoned well corrosion-proof joint and send into 13.3/8 " interim abandoned well corrosion-proof joint or 9.5/8 " interim abandoned well corrosion-proof joint, and be connected respectively in 13.3/8 " casing hanger and 9.5/8 " casing hanger and protect hanger by screw thread.
Claims (1)
1. underwater well head mudline hanger, this mudline hanger comprises: 20 " conduit is sat hanging joint (3), 13.3/8 " casing hanger assembly (2), 9.5/8 " casing hanger assembly (1) and 20 " conduit (4), two 20 " conduit (4) is by 20 " conduits are sat hanging joint (3) and are connected, 13.3/8 " casing hanger assembly (2) is arranged on 20 " conduit is sat in hanging joint (3), 9.5/8 " casing hanger assembly (1) is arranged on 13.3/8 " casing hanger assembly (2) is upper, forms mudline hanger, it is characterized in that: wherein, 20 that " it be Butt Joint that conduit is sat hanging joint (3), and " casing hanger assembly (2) provides bearing surface with to carry 45 ° of shoulders (5) be 13.3/8, 13.3/8 " casing hanger (2) assembly is by 13.3/8 " casing hanger body (6), support ring (7) and jump ring (8) form, 13.3/8 " top of casing hanger body (6) is sent into and is promoted screw thread and tieback and promote screw thread with hanger, while being connected for tie back tool with 5 ° of metal sealing taperings on hanger body top, realize metal sealing, the support ring (7) with circulation port supports 13.3/8 " casing hanger assembly (2) is sat and hung over 20 " conduit (4) inside, circulation port in drilling process for mud provides circulation canal, 9.5/8 " casing hanger assembly (1) is by 9.5/8 " casing hanger body (9), elastic ring back-up ring (10), elastic ring (11), discharge ring (12) and load-carrying ring (13) composition, 9.5/8 " casing hanger body (9) is upper with circulating opening, 9.5/8 " top of casing hanger body (9) is sent into and is promoted screw thread and tieback lifting screw thread with hanger, while being connected for tie back tool with 5 ° of metal sealing taperings on hanger body top, realize metal sealing, mud circulation when elastic ring back-up ring (10) above provides mud circulation passage for drilling well jointly with the circulating opening on mud circulation groove and casing hanger body, elastic ring (11) is for 9.5/8, and " seat of casing hanger body (9) is hung, " casing hanger body (9) is sat and is suspended to a rear locking positioning to discharge ring (12) 9.5/8.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209320.8A CN103967436A (en) | 2014-05-19 | 2014-05-19 | Underwater wellhead mud line hanger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410209320.8A CN103967436A (en) | 2014-05-19 | 2014-05-19 | Underwater wellhead mud line hanger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN103967436A true CN103967436A (en) | 2014-08-06 |
Family
ID=51237394
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410209320.8A Pending CN103967436A (en) | 2014-05-19 | 2014-05-19 | Underwater wellhead mud line hanger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103967436A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989314A (en) * | 2015-06-12 | 2015-10-21 | 美钻能源科技(上海)有限公司 | Underwater mud line Christmas tree and installation method thereof |
| CN107313736A (en) * | 2017-06-14 | 2017-11-03 | 山东科瑞井控系统制造有限公司 | A kind of new casing head body bottom portion attachment means |
| CN109488239A (en) * | 2019-01-16 | 2019-03-19 | 上海霞为石油设备技术服务有限公司 | Underwater well head casing hanger and seal assembly one way running tool and method |
| CN112727377A (en) * | 2021-01-08 | 2021-04-30 | 西安交通大学 | Sandstone heat storage three-throw geothermal well body structure and construction method |
| RU216817U1 (en) * | 2022-12-28 | 2023-03-02 | Дмитрий Александрович Березкин | Bottom casing hanger |
| CN119507842A (en) * | 2025-01-20 | 2025-02-25 | 威飞海洋装备制造有限公司 | A casing mudline suspension system and its delivery method and use method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3974875A (en) * | 1971-01-04 | 1976-08-17 | Mcevoy Oilfield Equipment Co. | Underwater well completion method and apparatus |
| US4577686A (en) * | 1984-04-26 | 1986-03-25 | Vetco Offshore, Inc. | Mudline support hanger assembly |
| EP0261909A2 (en) * | 1986-09-23 | 1988-03-30 | Plexus Ocean Systems Limited | Casing hanger systems |
| CN1860282A (en) * | 2003-08-08 | 2006-11-08 | 澳洲澳德赛能源有限公司 | Method of suspending, completing and working over a well |
| CN101769146A (en) * | 2009-12-30 | 2010-07-07 | 中国石油天然气集团公司 | Metal-to-metal sealing tieback connector |
| CN202706978U (en) * | 2012-07-27 | 2013-01-30 | 李鹏飞 | Multistage casing head |
-
2014
- 2014-05-19 CN CN201410209320.8A patent/CN103967436A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3974875A (en) * | 1971-01-04 | 1976-08-17 | Mcevoy Oilfield Equipment Co. | Underwater well completion method and apparatus |
| US4577686A (en) * | 1984-04-26 | 1986-03-25 | Vetco Offshore, Inc. | Mudline support hanger assembly |
| EP0261909A2 (en) * | 1986-09-23 | 1988-03-30 | Plexus Ocean Systems Limited | Casing hanger systems |
| CN1860282A (en) * | 2003-08-08 | 2006-11-08 | 澳洲澳德赛能源有限公司 | Method of suspending, completing and working over a well |
| CN101769146A (en) * | 2009-12-30 | 2010-07-07 | 中国石油天然气集团公司 | Metal-to-metal sealing tieback connector |
| CN202706978U (en) * | 2012-07-27 | 2013-01-30 | 李鹏飞 | Multistage casing head |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104989314A (en) * | 2015-06-12 | 2015-10-21 | 美钻能源科技(上海)有限公司 | Underwater mud line Christmas tree and installation method thereof |
| CN104989314B (en) * | 2015-06-12 | 2017-10-20 | 美钻能源科技(上海)有限公司 | Mud line production tree and its installation method under water |
| CN107313736A (en) * | 2017-06-14 | 2017-11-03 | 山东科瑞井控系统制造有限公司 | A kind of new casing head body bottom portion attachment means |
| CN107313736B (en) * | 2017-06-14 | 2023-06-27 | 威飞海洋装备制造有限公司 | Novel casing head body bottom connecting device |
| CN109488239A (en) * | 2019-01-16 | 2019-03-19 | 上海霞为石油设备技术服务有限公司 | Underwater well head casing hanger and seal assembly one way running tool and method |
| CN112727377A (en) * | 2021-01-08 | 2021-04-30 | 西安交通大学 | Sandstone heat storage three-throw geothermal well body structure and construction method |
| RU216817U1 (en) * | 2022-12-28 | 2023-03-02 | Дмитрий Александрович Березкин | Bottom casing hanger |
| CN119507842A (en) * | 2025-01-20 | 2025-02-25 | 威飞海洋装备制造有限公司 | A casing mudline suspension system and its delivery method and use method |
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| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20140806 |
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| WD01 | Invention patent application deemed withdrawn after publication |