CN102953709A - Novel suction pile type subsea drilling template - Google Patents
Novel suction pile type subsea drilling template Download PDFInfo
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- CN102953709A CN102953709A CN201110238029XA CN201110238029A CN102953709A CN 102953709 A CN102953709 A CN 102953709A CN 201110238029X A CN201110238029X A CN 201110238029XA CN 201110238029 A CN201110238029 A CN 201110238029A CN 102953709 A CN102953709 A CN 102953709A
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Abstract
A novel suction pile type subsea drilling template comprises pile foundations, guide cylinders and a frame template and is characterized in that the pile foundations are suction pile foundations, suctions piles, the frame template and the guide cylinders are connected to form a integral structure which is capable of leveling simultaneously during suction immersion. The frame template is a single triangular pipe frame which is integrated with the guide cylinders and the top middles of the suction piles by means of welding. A wellhead guide structure can be welded or in pipe clamp connection with the frame template. The number of the wellhead can be adjusted flexibly. The novel suction pile type subsea drilling template has the advantages that the novel suction pile type subsea drilling template is simple in structure, lightweight, low in welding quantity and easy to increase wellhead number, wellhead positions can be adjusted, underwater immersing can be achieved by miniature cranes, the template can be adjusted simultaneously during immersion of the suction piles, no large equipment or special equipment such as barges, floating cranes, pile hammers, leveling machines and grouting machines is needed for marine installation, and accordingly marine installation procedures are simplified, marine installation time is shortened, and cost is reduced.
Description
Technical field
The invention belongs to the innovation of ocean engineering field ocean floor drilling basal disc structural shape.
Background technology
Implement jacket at sea relevant with the offshore oil field development scheme with the docking of basal disc direction peg.Mainly contain two kinds of development plans and implement docking operations, the one, adopt pre-drilling well, the 2nd, remain with the exploratory well of extraction value.Adopt the scheme of pre-drilling well, i.e. the design of drilling well and platform facility and construction are carried out synchronously, can shorten the exploitation duration, reduce the whole development engineering cost, speed the repayment speed of investment.This scheme generally adopts subsea template to carry out drilling well.For jacket is accurately positioned on the basal disc, generally at basal disc direction peg is set and docks with the sleeve that the jacket bottom arranges.The ocean floor drilling basal disc is the structure facility of pre-drillng operation, and traditional ocean floor drilling basal disc adopts driven pile to be fixed in the seabed.The direction peg that the part of driven pile more than the basal disc sleeve docked with template as jacket, the level from jacket of mainly bearing is to impact.Tradition ocean floor drilling basal disc installation process, piling work, leveling operation and grouting operation are arranged, need construction equipment to be useful on to load transportation ocean floor drilling basal disc and stake barge, be used for lifting ocean floor drilling basal disc and stake crane barge, be used for the special-purpose leveller of ocean floor drilling basal disc leveling, and pile hammer, grouting equipment etc., use drill ship to go to sea at every turn a basal disc can only be installed, not only the construction period longer, and operating expenses is high.The Wenchang jacket installation used suction pile formula basal disc afterwards, can in suction pile negative pressure sinking process, finish the basal disc leveling, need not piling, leveling, grouting operation, thereby simplified marine erection procedure, shortened the marine installation period of ocean floor drilling basal disc, reduced expense, but basal disc adopts trussed construction, and form is comparatively complicated, and weight is slightly heavy, welding capacity is larger, and Once you begin build shaft collar, quantity is difficult to change again.
Summary of the invention
In order to alleviate basal disc weight, reduce welding capacity, overcome the nonadjustable shortcoming of shaft collar, the invention provides a kind of new suction pile type ocean floor drilling base metal.This basal disc form of structure is simple, lightweight, and the well head guide frame can weld with the framework basal disc or connect with pipe clamp, but well head quantity flexible modulation can be transported to the construction marine site by light tug; Just can realize transferring in the water by small-sized crane, and reach the purpose that shortens marine installation period, reduces mounting cost.
The technical solution adopted for the present invention to solve the technical problems is: the ocean floor drilling basal disc is comprised of pile foundation, guide cylinder and framework basal disc, it is characterized in that pile foundation adopts suction pile, suction pile and framework basal disc, guide cylinder are connected to the overall structure of simultaneously leveling in the suction sinking.The framework basal disc is single triangle tube shelf structure, and the center of top column of same guide cylinder, suction pile is welded as a whole.The well head guide frame can weld with the framework basal disc or connect with pipe clamp, but well head quantity flexible modulation.
The invention has the beneficial effects as follows, marine installation process only needs a tugboat and a small-sized crane to get final product, and uses new type of deep-water pump sledge block system during the suction injection, can significantly shorten marine installation period, decrease cost, improves marine safety of installing.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is front elevation drawing of the present invention;
Fig. 2 is top view of the present invention;
Fig. 3 is marine transportation view of the present invention;
Fig. 4 is suction sinking leveling schematic diagram of the present invention.
Wherein: the 1-suction pile; The 2-guide cylinder; 3-framework basal disc; The 4-pumping hole; The 5-submersible pump; The 6-tugboat; The 7-water surface; 8-soil.
The specific embodiment
The structure of suction pile type ocean floor drilling base metal is seen Fig. 1 and Fig. 2, is comprised of three suction piles 1, two guide cylinders 2 and framework basal disc 3, and guide cylinder 2 is positioned at the center of top of suction pile 1, and framework basal disc 3 links together with guide cylinder 2; The suction pile top is provided with pumping hole 4, its top installing submersible pump 5 or air-powered pump.
Suction pile type ocean floor drilling base metal marine transportation state is seen Fig. 3, is dragged to the installation site by tugboat 6.
By the small-sized crane on the tugboat suction pile type ocean floor drilling base metal is lifted lower water, suction pile type ocean floor drilling base metal relies on deadweight to make the suction pile initial penetration into mud reach the native air-proof condition of stake after entering mud, this moment is by extracting the water in the suction pile, make in the suction pile injection ocean bottom soil 8, in injection soil 8 processes, by controlling respectively the discharge capacity of three suction pile 1 top submersible pumps 5, adjust corresponding suction pile 1 driving depth, thereby adjust the levelness of basal disc, see Fig. 4.
Claims (3)
1. new suction pile type ocean floor drilling base metal, formed by pile foundation, guide cylinder and framework basal disc, it is characterized in that pile foundation adopts suction pile, suction pile and framework basal disc, guide cylinder are connected to the overall structure of simultaneously leveling in the suction sinking, and the well head guide frame connects with the framework basal disc.
2. according to claim 1 new suction pile type ocean floor drilling base metal is characterized in that said framework basal disc is single triangle tube shelf structure, and the center of top column of same guide cylinder, suction pile is welded as a whole.
3. according to claim 1 new suction pile type ocean floor drilling base metal is characterized in that said well head guide frame can weld with the framework basal disc or connects with pipe clamp, but well head quantity flexible modulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110238029XA CN102953709A (en) | 2011-08-19 | 2011-08-19 | Novel suction pile type subsea drilling template |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110238029XA CN102953709A (en) | 2011-08-19 | 2011-08-19 | Novel suction pile type subsea drilling template |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102953709A true CN102953709A (en) | 2013-03-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110238029XA Pending CN102953709A (en) | 2011-08-19 | 2011-08-19 | Novel suction pile type subsea drilling template |
Country Status (1)
| Country | Link |
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| CN (1) | CN102953709A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556972A (en) * | 2013-10-23 | 2014-02-05 | 中国海洋石油总公司 | Self-installed ocean floor drilling template and installation method thereof |
| CN104653871A (en) * | 2013-11-18 | 2015-05-27 | 天津市海王星海上工程技术股份有限公司 | Reinforcing and repairing device of suspension damage section of sea pipe |
| CN110144925A (en) * | 2019-05-27 | 2019-08-20 | 中国能源建设集团广东省电力设计研究院有限公司 | Blower fan system, jacket basis and its construction method |
| CN110685296A (en) * | 2019-09-17 | 2020-01-14 | 广州海洋地质调查局 | Combined suction anchor and seabed penetration method thereof |
| CN114555908A (en) * | 2019-10-03 | 2022-05-27 | Spt设备有限公司 | Suction type ocean bottom well head |
-
2011
- 2011-08-19 CN CN201110238029XA patent/CN102953709A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103556972A (en) * | 2013-10-23 | 2014-02-05 | 中国海洋石油总公司 | Self-installed ocean floor drilling template and installation method thereof |
| CN104653871A (en) * | 2013-11-18 | 2015-05-27 | 天津市海王星海上工程技术股份有限公司 | Reinforcing and repairing device of suspension damage section of sea pipe |
| CN110144925A (en) * | 2019-05-27 | 2019-08-20 | 中国能源建设集团广东省电力设计研究院有限公司 | Blower fan system, jacket basis and its construction method |
| CN110685296A (en) * | 2019-09-17 | 2020-01-14 | 广州海洋地质调查局 | Combined suction anchor and seabed penetration method thereof |
| CN110685296B (en) * | 2019-09-17 | 2024-01-12 | 广州海洋地质调查局 | Combined suction anchor and seabed penetration method thereof |
| CN114555908A (en) * | 2019-10-03 | 2022-05-27 | Spt设备有限公司 | Suction type ocean bottom well head |
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Legal Events
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| C06 | Publication | ||
| PB01 | Publication | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130306 |