CN105114025A - Connector for undersea Christmas tree - Google Patents
Connector for undersea Christmas tree Download PDFInfo
- Publication number
- CN105114025A CN105114025A CN201510546828.1A CN201510546828A CN105114025A CN 105114025 A CN105114025 A CN 105114025A CN 201510546828 A CN201510546828 A CN 201510546828A CN 105114025 A CN105114025 A CN 105114025A
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- Prior art keywords
- hydraulic
- sub
- production tree
- upper body
- hole
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Abstract
A connector for an undersea Christmas tree comprises an upper body and a lower body mounted below the upper body, wherein an adaptive seal gasket is disposed between the upper body and the lower body, the middle of the upper body and the middle of the lower body are provided with through holes used for receiving a wellhead, a fastener block cooperating with a locking slot of the wellhead is arranged in the through hole of the lower body, a plurality of hydraulic devices are mounted at the bottom of the lower body and are connected with a hydraulic sliding rod disposed in a receiving hole arranged in the lower portion of the lower body, the hydraulic sliding rod is pivoted with an eccentric wheel through an eccentric wheel positioning shaft, and the eccentric wheel is abutted to the fastener block. Each damaged part can be replaced on a platform or land according to damage conditions of the hydraulic devices, thus the overall connector replacement problem caused by failure of a hydraulic system is solved; in addition, sealing reliability is improved, operational difficulty is decreased, and production cost is greatly reduced.
Description
Technical field
The present invention relates to submerged production tree connected structure, particularly relate to the subsea production tree connector that a kind of self adaptation is installed.Belong to Offshore Engineering technical field.
Background technology
In recent years, along with the development of economy, the demand of countries in the world to petroleum resources is increasing.Due to the exhaustion day by day of Land petroleum resource, sight has been shifted to ocean by various countries one after another.Subsea production system obtains extensive concern and the application of various countries with its significant technical advantage, considerable economic benefit.Use subsea production system, not only can avoid building expensive offshore production platform, thus, save a large amount of construction investment; And subsea production system is less by disaster weather effect, and reliability is strong.Therefore, it has become one of the key facility in mining depth aqueous hydrocarbon field.
Underwater well head and oil production equipment are not only the key components of subsea production system, and, be also the important equipment in offshore and gas development.Its duty determines the state of whole subsea production system operation.Wellhead connector is wherein then the visual plant of gas and oil in sea exploitation, wellhead assembly is connected under it, it connects subsea blowout preventer (bore completion and well workover operating mode) or production tree (production status), there is the effect connecting well head and production tree tree body, prevent external applied load in HTHP oil and gas leakage in well, support metal sealing ring, carrying.Wellhead connector is mainly used in the location between production tree with underwater well head and is connected, and its form of structure and connected mode have a great impact the installation progress of subsea production system and gross investment tool.
At present, domestic research for subsea production tree is also in the starting stage, lacks subsea production tree key technology and structure-design technique.In the urgent need to carrying out design studies to each vitals of subsea production tree.Wellhead connector as deep water subsea production tree is one of critical component.Existing wellhead connector principal mode is: fluid pressure type C shape retaining ring structure and jack catchs type structure.And these two kinds due to its hydraulic system be connected fastening system and be structure as a whole, therefore, require higher to the hydraulic packing of wellhead connector, once hydraulic packing was lost efficacy, then need to change whole wellhead connector, add cost of production.
Summary of the invention
Main purpose of the present invention is the above-mentioned shortcoming overcoming prior art existence, and a kind of subsea production tree connector of improvement is provided, it can not only damage situation according to hydraulic press, damage parts can be changed respectively at platform or land, solve the connector integral replacing problem because hydraulic system fails causes, and, also improve the reliability of sealing, reduce operation easier, greatly save cost of production.
The object of the invention is to be realized by following technical scheme:
A kind of subsea production tree connector, it is characterized in that: comprising: a upper body, be arranged on sub-body below upper body, wherein, be provided with a self-adapting seal packing ring between upper body and sub-body, the middle part of upper body and sub-body is provided with the through hole for accommodating well head head; And the fixture block be provided with in sub-body through hole for matching with the locking draw-in groove of well head head; The bottom of sub-body is provided with several hydraulic press; This hydraulic press is connected with the hydraulic thrust pull bar in the containing hole being located at sub-body bottom by hydraulic control lines, by eccentric wheel locating shaft and an eccentric wheel pivot joint on hydraulic thrust pull bar; And eccentric wheel is conflicted on fixture block.
Described upper body upper end is provided with the bolt hole for being connected with production tree, and production tree carries out bolt with upper body by production tree link bolt hole and is connected.
The diameter of described sub-body through hole is greater than the through hole of upper body.
Described fixture block is semicircle ring-type, is provided with spring between bottom the bottom of fixture block and the through hole of sub-body.
Described hydraulic press is the hydraulic press of integrated type hydraulic cylinder, and this hydraulic press is connected with Hydraulic Station, and provides hydraulic power by Hydraulic Station.
Described hydraulic thrust pull bar is
shape.
The invention has the beneficial effects as follows:
(1) hydraulic system and connected system modularization, hydraulic press can according to circumstances be changed at platform or land, avoids the connector integral replacing because hydraulic system fails causes, has greatly saved cost of production.
(2) self-adapting seal packing ring is adopted, and, carry out pre-sealed under production tree Action of Gravity Field, the reliability sealed can be ensured.
(3) adopt Camlock structure, the hydraulic pressure operating latch segment needs can be reduced, reduce operation easier.
Accompanying drawing explanation
Fig. 1 is overall structure schematic diagram of the present invention.
Major label description in figure:
1. bolt hole, 2. upper body, 3. self-adapting seal packing ring, 4. upper and lower connecting bolt, 5. sub-body, 6. hydraulic thrust pull bar, 7. hydraulic control lines, 8. hydraulic press connecting bolt, 9. hydraulic press, 10. well head head, 11. eccentric wheels, 12. eccentric wheel locating shafts, 13. fixture blocks, 14. springs.
Detailed description of the invention
As shown in Figure 1, the present invention includes: a upper body 2, adopt upper and lower connecting bolt 4 connected mode to be arranged on sub-body 5 below upper body 2, wherein, be provided with a self-adapting seal packing ring 3 between upper body 2 and sub-body 5, upper body 2 is provided with the through hole for accommodating well head head 10 with the middle part of sub-body 5; And the fixture block 13 be provided with in sub-body 5 through hole for matching with the locking draw-in groove of well head head 10; The bottom of sub-body 5 is provided with several hydraulic press 9 by hydraulic press connecting bolt 8 connected mode; This hydraulic press 9 is connected with the hydraulic thrust pull bar 6 in the another containing hole being located at sub-body 5 bottom by hydraulic control lines 7, by eccentric wheel locating shaft 12 and eccentric wheel 11 pivot joint on hydraulic thrust pull bar 6; And eccentric wheel 11 is conflicted on fixture block 13.
By hydraulic control lines 7 hydraulic control pull bar 6, and hydraulic thrust pull bar 6 is with movable eccentric wheel 11 to rotate around eccentric wheel locating shaft 12, compresses the locking draw-in groove of semicircle ring-type fixture block 13 to well head head 10.
Above-mentioned upper body 2 upper end is provided with the bolt hole 1 for being connected with production tree, and production tree carries out bolt with connector upper body 2 by production tree link bolt hole 1 and is connected.
The diameter of above-mentioned sub-body 5 through hole is greater than the through hole of upper body 2.
Above-mentioned fixture block 13 is semicircle ring-type, is provided with spring 14 between bottom the bottom of fixture block 13 and the through hole of sub-body 5.
Above-mentioned hydraulic press 9 is: the hydraulic press of integrated type hydraulic cylinder, hydraulic press 9 is connected with Hydraulic Station, and provides hydraulic power by Hydraulic Station.
Above-mentioned hydraulic thrust pull bar 6 is
shape.
Operating principle of the present invention: when installing subsea production tree, first connector is transferred to well head head 10, self-adapting seal packing ring 3 carries out pre-sealed under production tree Action of Gravity Field, simultaneously, semicircle ring-type fixture block 13 is placed into well head head 10 locking clamp slot put, primer fluid depressor 9, hydraulic press 9 is by hydraulic control lines 7 hydraulic control pull bar 6, hydraulic thrust pull bar 6 is with movable eccentric wheel 11 to rotate around eccentric wheel locating shaft 12, compresses semicircle ring-type fixture block 13 on the locking draw-in groove of well head head 10.During disengagement, reverse starting hydraulic press 9, hydraulic press 9 is by hydraulic control lines 7 hydraulic control pull bar 6, hydraulic thrust pull bar 6 is with movable eccentric wheel 11 to rotate backward, unclamp the semicircle ring-type fixture block 13 of compression, semicircle ring-type fixture block 13 is externally opened under spring 14 acts on, and is separated with well head head 10.
The above, it is only preferred embodiment of the present invention, not any pro forma restriction is done to the present invention, every above embodiment is done according to technical spirit of the present invention any simple modification, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (6)
1. a subsea production tree connector, it is characterized in that: comprising: a upper body, be arranged on sub-body below upper body, wherein, be provided with a self-adapting seal packing ring between upper body and sub-body, the middle part of upper body and sub-body is provided with the through hole for accommodating well head head; And the fixture block be provided with in sub-body through hole for matching with the locking draw-in groove of well head head; The bottom of sub-body is provided with several hydraulic press; This hydraulic press is connected with the hydraulic thrust pull bar in the containing hole being located at sub-body bottom by hydraulic control lines, by eccentric wheel locating shaft and an eccentric wheel pivot joint on hydraulic thrust pull bar; And eccentric wheel is conflicted on fixture block.
2. subsea production tree connector according to claim 1, is characterized in that: described upper body upper end is provided with the bolt hole for being connected with production tree, and production tree carries out bolt with upper body by production tree link bolt hole and is connected.
3. subsea production tree connector according to claim 1, is characterized in that: the diameter of described sub-body through hole is greater than the through hole of upper body.
4. subsea production tree connector according to claim 1, is characterized in that: described fixture block is semicircle ring-type, is provided with spring between bottom the bottom of fixture block and the through hole of sub-body.
5. subsea production tree connector according to claim 1, is characterized in that: described hydraulic press is the hydraulic press of integrated type hydraulic cylinder, and this hydraulic press is connected with Hydraulic Station, and provides hydraulic power by Hydraulic Station.
6. subsea production tree connector according to claim 1, is characterized in that: described hydraulic thrust pull bar is
shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546828.1A CN105114025A (en) | 2015-08-31 | 2015-08-31 | Connector for undersea Christmas tree |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510546828.1A CN105114025A (en) | 2015-08-31 | 2015-08-31 | Connector for undersea Christmas tree |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105114025A true CN105114025A (en) | 2015-12-02 |
Family
ID=54662111
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510546828.1A Pending CN105114025A (en) | 2015-08-31 | 2015-08-31 | Connector for undersea Christmas tree |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105114025A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110418872A (en) * | 2017-03-14 | 2019-11-05 | 卷轴动力许可公司 | Long-range actuating attachment device for the connection of spiral shoulder |
| CN116220643A (en) * | 2022-12-26 | 2023-06-06 | 江苏雄越石油机械设备制造有限公司 | Fracturing manifold sled connects device soon |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2024919A (en) * | 1978-06-19 | 1980-01-16 | Nl Industries Inc | Toggle mechanism connector |
| US4496172A (en) * | 1982-11-02 | 1985-01-29 | Dril-Quip, Inc. | Subsea wellhead connectors |
| US4856594A (en) * | 1988-08-26 | 1989-08-15 | Vetco Gray Inc. | Wellhead connector locking device |
| US6070669A (en) * | 1997-02-15 | 2000-06-06 | Abb Vetco Gray Inc. | Adjustable wellhead connector |
| CN101806199A (en) * | 2010-03-19 | 2010-08-18 | 中国石油天然气集团公司 | Sea deepwater hydraulic connector |
| CN102003157A (en) * | 2010-12-10 | 2011-04-06 | 中国石油大学(北京) | Subsea wellhead connector |
| CN102155181A (en) * | 2011-03-28 | 2011-08-17 | 中国海洋石油总公司 | Wellhead tieback connector |
| CN102182419A (en) * | 2011-04-01 | 2011-09-14 | 宝鸡石油机械有限责任公司 | Hydraulic connecting device for deepwater pipeline |
-
2015
- 2015-08-31 CN CN201510546828.1A patent/CN105114025A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2024919A (en) * | 1978-06-19 | 1980-01-16 | Nl Industries Inc | Toggle mechanism connector |
| US4496172A (en) * | 1982-11-02 | 1985-01-29 | Dril-Quip, Inc. | Subsea wellhead connectors |
| US4856594A (en) * | 1988-08-26 | 1989-08-15 | Vetco Gray Inc. | Wellhead connector locking device |
| US6070669A (en) * | 1997-02-15 | 2000-06-06 | Abb Vetco Gray Inc. | Adjustable wellhead connector |
| CN101806199A (en) * | 2010-03-19 | 2010-08-18 | 中国石油天然气集团公司 | Sea deepwater hydraulic connector |
| CN102003157A (en) * | 2010-12-10 | 2011-04-06 | 中国石油大学(北京) | Subsea wellhead connector |
| CN102155181A (en) * | 2011-03-28 | 2011-08-17 | 中国海洋石油总公司 | Wellhead tieback connector |
| CN102182419A (en) * | 2011-04-01 | 2011-09-14 | 宝鸡石油机械有限责任公司 | Hydraulic connecting device for deepwater pipeline |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110418872A (en) * | 2017-03-14 | 2019-11-05 | 卷轴动力许可公司 | Long-range actuating attachment device for the connection of spiral shoulder |
| CN110418872B (en) * | 2017-03-14 | 2022-01-25 | 卷轴动力许可公司 | Remotely actuated connection for a helical shoulder connection |
| CN116220643A (en) * | 2022-12-26 | 2023-06-06 | 江苏雄越石油机械设备制造有限公司 | Fracturing manifold sled connects device soon |
| CN116220643B (en) * | 2022-12-26 | 2024-02-27 | 江苏雄越石油机械设备制造有限公司 | Fracturing manifold sled connects device soon |
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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 | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant after: China Offshore Oil Group Co., Ltd. Applicant after: Offshore Oil Engineering Co., Ltd. Applicant after: China Petroleum University (East China) Address before: 100010 Chaoyangmen North Street, Dongcheng District, Dongcheng District, Beijing Applicant before: China National Offshore Oil Corporation Applicant before: Offshore Oil Engineering Co., Ltd. Applicant before: China Petroleum University (East China) |
|
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20151202 |