CN102206938A - Novel method for installing upper part block of offshore platform - Google Patents
Novel method for installing upper part block of offshore platform Download PDFInfo
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- CN102206938A CN102206938A CN 201010505312 CN201010505312A CN102206938A CN 102206938 A CN102206938 A CN 102206938A CN 201010505312 CN201010505312 CN 201010505312 CN 201010505312 A CN201010505312 A CN 201010505312A CN 102206938 A CN102206938 A CN 102206938A
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- chunk
- substructure
- upper chunk
- ship
- column
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Abstract
The invention relates to a novel method for installing an upper part block of an offshore platform, which is characterized in that: the upper part block is transferred from a transport ship to the top of a lower part guide pipe frame which has been constructed on the offshore platform by a hydraulic jacking lower supporting installation method; after the transport ship loaded with the upper part block arrives at a construction site, the transport ship is towed to the front of a constructed upright post with a lower part structure to be positioned; jacking equipment specially arranged on the transport ship is used for jacking the upper part block; the transport ship is towed to the middle of the constructed upright post with the lower part structure to make the bottom supporting point of the upper part block aligned with the top of the upright post with the lower part structure; and the upper part block is lowered through the drop of the water level of falling tide or by operating the jacking equipment to be seated on the top of the upright post with the lower part structure, so that the block upright post and a pile leg of the lower part guide pipe frame are butted with each other and welded and fixed. The method has the advantages that: a large floating crane with expensive rent and rare resources is not required to used during offshore construction installation, so that offshore installation cost is obviously reduced.
Description
Technical field
The invention belongs to the innovation of ocean engineering field jacket upper chunk mounting method.
Background technology
Existing offshore platform top chunk is to the mounting method that is built in marine substructure, and the most frequently used method is that upper chunk is delivered ship after the substructure of having built is nearby in place, utilizes crane barge upper chunk to be lifted the top of substructure.This method need be employed rent costliness and the very nervous large-scale floating crane of resource, and its expense is higher.
Summary of the invention
The objective of the invention is to create a kind of new method, make upper chunk change the subiculum method into by traditional method of hanging oneself to the transfer of bottom structural top.Thereby do not need to employ rent costliness and the very nervous large-scale floating crane of resource, only need get final product, to reach the purpose of the marine mounting cost of remarkable reduction by hydraulic jacking device.
The technical solution adopted for the present invention to solve the technical problems is, marine positioning to offshore platform top chunk delivery ship, and upper chunk transferred to the installation that is built in marine platform lower guide pipe support top from the delivery ship, it is characterized in that the installation that upper chunk is transferred to lower guide pipe support top from the delivery ship is the subiculum mounting method that adopts hydraulic lifting.After the delivery ship that upper chunk is housed arrives the job location, the place ahead that upper chunk is delivered the column that is dragged to the substructure of having built on the ship is in place, utilize the Lifting Equipment of special arrangement on the delivery ship that upper chunk is risen again, make its outer column top elevation that props up a little higher than substructure of point height that is suspended from the bottom of ship side both sides, then upper chunk being delivered ship pulls in the middle of the column of the substructure of having built, the column top of upper chunk bottom fulcrum and substructure is aligned, utilize ebb tide drawdown or operation Lifting Equipment that upper chunk is transferred again, make it to be seated at substructure column top, the chunk column is docked with lower guide pipe support spud leg, and welding is fixing.
The invention has the beneficial effects as follows as mentioned above, do not need to employ rent costliness and the very nervous large-scale floating crane of resource during construction and installation at sea, significantly reduced marine mounting cost.
Description of drawings
The invention will be further described below in conjunction with drawings and Examples.
Fig. 1 is a platform upper chunk shipment arrangement diagram of the present invention;
Fig. 2 is that platform upper chunk delivery ship is other with regard to bitmap in substructure;
Fig. 3 is that platform upper chunk hydraulic cylinder is installed connection layout;
Fig. 4 jacking that is the platform upper chunk on the delivery ship is with regard to bitmap;
Fig. 5 is that platform superstructure delivery ship deck slideway docks with regard to bitmap with substructure end face slideway;
Fig. 6 is platform upper chunk and substructure installation figure.
Wherein: 1-combined type pontoon barge; The 2-lash ship; The 3-lash barge; 4-box-girder track; The 5-crawler crane; The 6-jacket; The 7-upper chunk; The 8-pin-and-hole; The 9-hydraulic cylinder; The 10-dragging track; The 11-connecting axle; The 12-water surface; 13-mud face.
The specific embodiment
No. 302 combined type pontoon barges 1 of extra large grace that main construction boats and ships are built for the research and development of Neptune company, wherein lash ship 2 length overalls are 99 meters, 32 meters of molded breadths, 6.5 meters of moldeed depth, 3 meters of Light Drafts, 4.5 meters of full-load drafts, 40 tons of cranes, about 8000 tons of cargo dead-weight, 8 of windlass (in the cabin), 4 in hoist engine; 35.8 meters of lash barge 3 length overalls, 16.5 meters of molded breadths, 6.5 meters of moldeed depth.Lash barge 3 is connected by diaxon 11 with lash ship 2, and is rotatable, detachable; 250 tons of crawler cranes (set upright and hang), dismountable, can adjust the position, deck; Can install the box beam of encorbelmenting additional, long 24 meters, wide 3 meters, high 3 meters; 40 tons of cranes, detachable.
Sea grace 302 combined type pontoon barges 1 at first carry out terminal ship, the pre-installation of fixed structure part are welded upper chunk 7 jacking slippages shipment.
Wherein the step of upper chunk 7 shipments is:
Adjust combined type pontoon barge 1 position, allow stem over against harbour, stem case beam sliding way is over against the chunk piston shoes;
Welding on combined type pontoon barge 1 deck, the pre-mounting portion of shipment fixed structure;
Combined type pontoon barge 1 on the dilatory upper chunk 7 of stepping pulling device on the slideway;
After arriving the job location, install jacket 6 after, begin to carry out the installation of upper chunk 7.
Wherein the step of upper chunk 7 installations is:
Combined type pontoon barge 1 is in place again, allows the stem semi girder over against jacket 6;
Enter in the semi girder by jacket 6 by the strand anchor;
Combined type pontoon barge 1 transferred carry, allow combined type pontoon barge 1 least draught (absorbing water 3 meters approximately);
Remove upper chunk 7 deck fixed structures;
Spud leg piston shoes hydraulic cylinder 9 jack-up make the column top elevation of an a little higher than substructure of point height of its outer bottom that is suspended from the ship side both sides, guarantee that upper chunk 7 columns exceed 6 about 0.5m in top of jacket, as catch up with high-tide period can be without hydraulic lifting;
Superstructure 7 combined type pontoon barges are pulled in the middle of the column of the substructure of having built, and hydraulic cylinder 9 step-by-step movement pulling devices promote upper chunk 7 to jacket 6 tops;
By the strand anchor, 7 contrapositions of fine setting upper chunk align the column top of superstructure bottom fulcrum and substructure;
Utilize ebb tide drawdown or operation spud leg hydraulic cylinder 9 equipment that upper chunk 7 is transferred, make it to be seated at substructure column top, allow upper chunk 7 columns dock with lower guide pipe support 6 spud legs;
Welding is fixing;
Remove piston shoes, 9 connections of spud leg hydraulic cylinder.
Claims (1)
1. new offshore platform top chunk mounting method, it is characterized in that it is the subiculum mounting method that adopts hydraulic lifting that upper chunk is transferred to the installation that is built in marine platform lower guide pipe support top from the delivery ship, after the pontoon barge that upper chunk is housed arrives the job location, the place ahead that upper chunk is delivered the column that is dragged to the substructure of having built on the ship is in place, utilize the Lifting Equipment of special arrangement on the delivery ship that upper chunk is risen again, make its outer column top elevation that props up a little higher than substructure of point height that is suspended from the bottom of ship side both sides, then upper chunk being delivered ship pulls in the middle of the column of the substructure of having built, the column top of upper chunk bottom fulcrum and substructure is aligned, utilize ebb tide drawdown or operation Lifting Equipment that upper chunk is transferred again, make it to be seated at substructure column top, the chunk column is docked with lower guide pipe support spud leg, and welding is fixing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010505312 CN102206938A (en) | 2010-10-13 | 2010-10-13 | Novel method for installing upper part block of offshore platform |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010505312 CN102206938A (en) | 2010-10-13 | 2010-10-13 | Novel method for installing upper part block of offshore platform |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102206938A true CN102206938A (en) | 2011-10-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010505312 Pending CN102206938A (en) | 2010-10-13 | 2010-10-13 | Novel method for installing upper part block of offshore platform |
Country Status (1)
| Country | Link |
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| CN (1) | CN102206938A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539188A (en) * | 2011-12-28 | 2012-07-04 | 中国海洋石油总公司 | Test device for continuous lifting system of large-tonnage topside module |
| CN102758438A (en) * | 2012-07-25 | 2012-10-31 | 中国海洋石油总公司 | Lowering device for large-scale ocean platform block |
| CN104002931A (en) * | 2014-05-08 | 2014-08-27 | 天津大学 | U-shaped offshore engineering installation vessel and jacket topside module installation method |
| CN104310235A (en) * | 2014-09-25 | 2015-01-28 | 太平洋海洋工程（舟山）有限公司 | Maritime work accommodation platform complete superstructure lifting method |
| CN104831955A (en) * | 2015-05-26 | 2015-08-12 | 中国能源建设集团广东省电力设计研究院有限公司 | Offshore substation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101732A (en) * | 1985-06-19 | 1986-12-24 | 塞彭公司 | Upper structure of offshore platform integral installation method and implement the equipment of this method |
| CN1109431A (en) * | 1993-10-29 | 1995-10-04 | Etpm公司 | A method of installing the deck of an offshore platform on a support structure at sea and an offshore platform deck |
-
2010
- 2010-10-13 CN CN 201010505312 patent/CN102206938A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN86101732A (en) * | 1985-06-19 | 1986-12-24 | 塞彭公司 | Upper structure of offshore platform integral installation method and implement the equipment of this method |
| CN1109431A (en) * | 1993-10-29 | 1995-10-04 | Etpm公司 | A method of installing the deck of an offshore platform on a support structure at sea and an offshore platform deck |
Non-Patent Citations (1)
| Title |
|---|
| 《中国造船》 20031031 闫建华 赵东油田固定式钻井平台的海上安装 第44卷, * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102539188A (en) * | 2011-12-28 | 2012-07-04 | 中国海洋石油总公司 | Test device for continuous lifting system of large-tonnage topside module |
| CN102758438A (en) * | 2012-07-25 | 2012-10-31 | 中国海洋石油总公司 | Lowering device for large-scale ocean platform block |
| CN102758438B (en) * | 2012-07-25 | 2015-01-07 | 中国海洋石油总公司 | Lowering device for large-scale ocean platform block |
| CN104002931A (en) * | 2014-05-08 | 2014-08-27 | 天津大学 | U-shaped offshore engineering installation vessel and jacket topside module installation method |
| CN104310235A (en) * | 2014-09-25 | 2015-01-28 | 太平洋海洋工程（舟山）有限公司 | Maritime work accommodation platform complete superstructure lifting method |
| CN104831955A (en) * | 2015-05-26 | 2015-08-12 | 中国能源建设集团广东省电力设计研究院有限公司 | Offshore substation |
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| Date | Code | Title | Description |
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| DD01 | Delivery of document by public notice |
Addressee: Qiang Qiang Document name: Notification to Make Rectification |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111005 |