CN102849180B - Launching process of jack-up offshore drilling platform by airbag - Google Patents
Launching process of jack-up offshore drilling platform by airbag Download PDFInfo
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- CN102849180B CN102849180B CN201210347402.XA CN201210347402A CN102849180B CN 102849180 B CN102849180 B CN 102849180B CN 201210347402 A CN201210347402 A CN 201210347402A CN 102849180 B CN102849180 B CN 102849180B
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Abstract
The invention relates to the technical field of offshore oil drilling, in particular to a launching process of a jack-up offshore drilling platform by an airbag. The process includes the steps of firstly, horizontally constructing the platform on a building berth; secondly, using an over-sized and ultrahigh-pressure launching airbag; thirdly, lengthening a bearing segment of the structure of the building berth; fourthly, distributing a construction pier; fifthly, using a footing blocking fixture to block footings; sixthly, performing secondary pier reversing after closing the platform; seventhly, dragging the fixed platform; eighthly, distributing the airbag below a main hull of the platform; ninthly, removing the construction pier of the platform; tenthly, shifting the platform to the water edge after second pier reversing; eleventhly, releasing to launch; and twelfthly, recovering the airbag and the footing blocking fixture. The drilling platform uses the airbag which is stable, efficient and low in cost to launch, the airbag is stable and controllable, launching period of the platform is shortened, construction cost and difficulty in construction of the platform are greatly reduced, and requirements of the platform for shipyards are lowered effectively.
Description
Technical field:
The present invention relates to a kind of offshore oil drilling technical field, particularly a kind of self-lifting type marine drilling platform air bag launching process.
Background technology:
Under self-lifting type marine drilling platform, water technology mainly to adopt at present both at home and abroad under building dock launching, arine railway water and refutes technology such as launching a ship.Building dock launching technology, requires higher to the capital construction of shipyard, and shipyard must possess the Large Ship Dock adapted with institute construct platform, and this technology is only applicable to have Large Ship Dock shipyard, and general middle boatyard cannot apply.Water technology under arine railway, needs to possess slideway needed for lower water, and needing increases extra investment cost; And the building berth of slideway has been installed, limit building berth and build the applicability of project, lower horizontal stability control ratio is more complicated, and in order to water steadying under ensureing platform is controlled, need the sliding system that design is complicated, platform construction difficulty is larger.Refute the technology of launching a ship, need to solve the complicated problem such as plateau levels translation, upper barge, need to possess large-scale partly diving and refute, require higher to the waters residing for shipyard, under platform, water process is consuming time longer.Other launching technology, cannot meet the particular/special requirement of water under platform.
Summary of the invention:
The technical problem to be solved in the present invention is to provide a kind of self-lifting type marine drilling platform air bag launching process, the method achieve the air bag launching that drilling platform adopts steady high efficiency, low cost, steadily controlled, the water cycle under shortening platform, greatly lower the laid down cost of platform and build difficulty, effectively reducing the door that construct platform requires shipyard.The large-scale capital construction facility that the construction overcoming the jack-up platform under existing self-lifting type marine drilling platform in water technology need possess Large Ship Dock, complicated slideway or half is dived refutes etc., laid down cost is high, builds the deficiency that difficulty is large.
The technical solution used in the present invention is: a kind of self-lifting type marine drilling platform air bag launching process, and the method step is as follows:
One, platform level on building berth is built: low different construction pier after high before arranging, platform keeps level to build;
Two, water ballonet under employing super large, superhigh pressure;
Three, carrying elongated segment is carried out to berth structure: according to water calculation sheet water level and requirement for bearing capacity under platform, prolongation building berth carrying segment length, and extra large operation is swept to Xia Shui waters, remove sharp-pointed hard foreign material, avoid hurting hull during lower water;
Four, construction pier is arranged;
Five, adopt shoe shutoff frock to implement shutoff to shoe: shoe shutoff frock adopts steel-wood structure design, adopt wire sling and platform to be reliably connected and fixed, main body and shoe shutoff frock adopt transition processing; Open wire sling after lower water, shoe shutoff frock can depart from hull, uses after reclaiming in order to follow-up secondary;
Six, platform closes up the process of falling pier of rear secondary: close up rear platform and carry out the process of secondary falling pier process, replace original construction pier, reach the platform after closing up and building berth keeping parallelism, required sliding force requirement when meeting water under platform;
Seven, fixed platform is drawn: secondary falls after pier completes, and carries out traction fixing, to prevent the uncontrollable downward slippage of airbag aeration rear platform with winch and trailer coupling to platform;
Eight, the layout of air bag under platform main body: according to the size of air bag and the feature of platform structure, carry out orderly layout to air bag, meets the requirement of platform structure to air bag bearing capacity; Air bag is inflated air bag, until reach lower water calculation sheet requirement pressure, is made platform main body be lifted away from construction pier completely after arranging;
Nine, platform construction pier is removed: air bag has been suppressed, and platform main body is removed all platform construction piers, and removed the hard implements of building berth upper gasbag rolling place after departing from construction pier, keeps building berth to clean smooth;
Ten, the secondary rear platform of falling pier is to the translation of waterside: secondary falls after pier, need to carry out to waterside translation to platform, operation adopts winch traction control retracting platform, step is divided into: pre-arranged air bag, platform translation certain distance, braking platform, supplementary airbag aeration pressurize, circulation comes and goes above-mentioned steps, until water is required to waterside translation distance under reaching platform;
11, water under threading off: dead work terminates, required water level is opened buckle release, is applied starting force by mechanism after meeting, and overcome platform movement friction dead point, before and after coordinating, the inflation/deflation of air bag operates, and implementation platform is flexible lower water steadily;
12, air bag and shoe shutoff frock reclaim: platform regains time water ballonet after descend water smoothly, removes and regains shoe shutoff frock, and avoiding affects spud leg standing at the bottom after water under platform, and so far platform air bag launching work all terminates.
The invention has the beneficial effects as follows: the present invention is owing to have employed the mode of the air bag launching of steady high efficiency, low cost, thus have steadily controlled, in the water cycle under shortening platform, greatly lower the laid down cost of platform and build the advantage of difficulty, effectively reducing the door that construct platform requires shipyard.
Detailed description of the invention:
A kind of self-lifting type marine drilling platform air bag launching process, the method step is as follows:
One, platform level on building berth is built: low different construction pier after high before arranging, platform keeps level to build;
Two, water ballonet under employing super large, superhigh pressure;
Three, carrying elongated segment is carried out to berth structure: according to water calculation sheet water level and requirement for bearing capacity under platform, prolongation building berth carrying segment length, and extra large operation is swept to Xia Shui waters, remove sharp-pointed hard foreign material, avoid hurting hull during lower water;
Four, construction pier is arranged;
Five, adopt shoe shutoff frock to implement shutoff to shoe: shoe shutoff frock adopts steel-wood structure design, adopt wire sling and platform to be reliably connected and fixed, main body and shoe shutoff frock adopt transition processing; Open wire sling after lower water, shoe shutoff frock can depart from hull, uses after reclaiming in order to follow-up secondary;
Six, platform closes up the process of falling pier of rear secondary: close up rear platform and carry out the process of secondary falling pier process, replace original construction pier, reach the platform after closing up and building berth keeping parallelism, required sliding force requirement when meeting water under platform;
Seven, fixed platform is drawn: secondary falls after pier completes, and carries out traction fixing, to prevent the uncontrollable downward slippage of airbag aeration rear platform with winch and trailer coupling to platform;
Eight, the layout of air bag under platform main body: according to the size of air bag and the feature of platform structure, carry out orderly layout to air bag, meets the requirement of platform structure to air bag bearing capacity; Air bag is inflated air bag, until reach lower water calculation sheet requirement pressure, is made platform main body be lifted away from construction pier completely after arranging;
Nine, platform construction pier is removed: air bag has been suppressed, and platform main body is removed all platform construction piers, and removed the hard implements of building berth upper gasbag rolling place after departing from construction pier, keeps building berth to clean smooth;
Ten, the secondary rear platform of falling pier is to the translation of waterside: secondary falls after pier, need to carry out to waterside translation to platform, operation adopts winch traction control retracting platform, step is divided into: pre-arranged air bag, platform translation certain distance, braking platform, supplementary airbag aeration pressurize, circulation comes and goes above-mentioned steps, until water is required to waterside translation distance under reaching platform;
11, water under threading off: dead work terminates, required water level is opened buckle release, is applied starting force by mechanism after meeting, and overcome platform movement friction dead point, before and after coordinating, the inflation/deflation of air bag operates, and implementation platform is flexible lower water steadily;
12, air bag and shoe shutoff frock reclaim: platform regains time water ballonet after descend water smoothly, removes and regains shoe shutoff frock, and avoiding affects spud leg standing at the bottom after water under platform, and so far platform air bag launching work all terminates.
Be understandable that, above about specific descriptions of the present invention, the technical scheme described by the embodiment of the present invention is only not limited to for illustration of the present invention, those of ordinary skill in the art is to be understood that, still can modify to the present invention or equivalent replacement, to reach identical technique effect; Needs are used, all within protection scope of the present invention as long as meet.
Claims (1)
1. a self-lifting type marine drilling platform air bag launching process, is characterized in that: the method step is as follows:
One, platform level on building berth is built: low different construction pier after high before arranging, platform keeps level to build;
Two, water ballonet under employing super large, superhigh pressure;
Three, carrying elongated segment is carried out to berth structure: according to water calculation sheet water level and requirement for bearing capacity under platform, prolongation building berth carrying segment length, and extra large operation is swept to Xia Shui waters, remove sharp-pointed hard foreign material, avoid hurting hull during lower water;
Four, construction pier is arranged;
Five, adopt shoe shutoff frock to implement shutoff to shoe: shoe shutoff frock adopts steel-wood structure design, adopt wire sling and platform to be reliably connected and fixed, main body and shoe shutoff frock adopt transition processing; Open wire sling after lower water, shoe shutoff frock can depart from hull, uses after reclaiming in order to follow-up secondary;
Six, platform closes up the process of falling pier of rear secondary: close up rear platform and carry out the process of secondary falling pier process, replace original construction pier, reach the platform after closing up and building berth keeping parallelism, required sliding force requirement when meeting water under platform;
Seven, fixed platform is drawn: secondary falls after pier completes, and carries out traction fixing, to prevent the uncontrollable downward slippage of airbag aeration rear platform with winch and trailer coupling to platform;
Eight, the layout of air bag under platform main body: according to the size of air bag and the feature of platform structure, carry out orderly layout to air bag, meets the requirement of platform structure to air bag bearing capacity; Air bag is inflated air bag, until reach lower water calculation sheet requirement pressure, is made platform main body be lifted away from construction pier completely after arranging;
Nine, platform construction pier is removed: air bag has been suppressed, and platform main body is removed all platform construction piers, and removed the hard implements of building berth upper gasbag rolling place after departing from construction pier, keeps building berth to clean smooth;
Ten, the secondary rear platform of falling pier is to the translation of waterside: secondary falls after pier, need to carry out to waterside translation to platform, operation adopts winch traction control retracting platform, step is divided into: pre-arranged air bag, platform translation certain distance, braking platform, supplementary airbag aeration pressurize, circulation comes and goes above-mentioned steps, until water is required to waterside translation distance under reaching platform;
11, water under threading off: dead work terminates, required water level is opened buckle release, is applied starting force by mechanism after meeting, and overcome platform movement friction dead point, before and after coordinating, the inflation/deflation of air bag operates, and implementation platform is flexible lower water steadily;
12, air bag and shoe shutoff frock reclaim: platform regains time water ballonet after descend water smoothly, removes and regains shoe shutoff frock, and avoiding affects spud leg standing at the bottom after water under platform, and so far platform air bag launching work all terminates.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210347402.XA CN102849180B (en) | 2012-09-18 | 2012-09-18 | Launching process of jack-up offshore drilling platform by airbag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210347402.XA CN102849180B (en) | 2012-09-18 | 2012-09-18 | Launching process of jack-up offshore drilling platform by airbag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102849180A CN102849180A (en) | 2013-01-02 |
| CN102849180B true CN102849180B (en) | 2014-12-31 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201210347402.XA Expired - Fee Related CN102849180B (en) | 2012-09-18 | 2012-09-18 | Launching process of jack-up offshore drilling platform by airbag |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105586863A (en) * | 2014-11-11 | 2016-05-18 | 江苏海王星海洋油气装备有限公司 | Bottom hull type mobile platform and launching technology of bottom hull type mobile platform |
| CN104859788B (en) * | 2015-05-08 | 2018-05-04 | 中国海洋石油集团有限公司 | A kind of quick method of construction of octagonal FDPSO |
| CN105253270B (en) * | 2015-10-30 | 2017-07-28 | 青岛海西重机有限责任公司 | One kind combination floating box type maritime platform launching gear and maritime platform launching method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424101A (en) * | 2011-11-19 | 2012-04-25 | 南通贝斯特船舶与海洋工程设计有限公司 | Technology for launching ship with airbags |
| CN202337334U (en) * | 2012-03-27 | 2012-07-18 | 广新海事重工股份有限公司 | Self-floating launching poppet platform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH01197196A (en) * | 1988-02-02 | 1989-08-08 | Mitsubishi Heavy Ind Ltd | Launching way recovery method |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102424101A (en) * | 2011-11-19 | 2012-04-25 | 南通贝斯特船舶与海洋工程设计有限公司 | Technology for launching ship with airbags |
| CN202337334U (en) * | 2012-03-27 | 2012-07-18 | 广新海事重工股份有限公司 | Self-floating launching poppet platform |
Non-Patent Citations (5)
| Title |
|---|
| JP平1-197196A 1989.08.08 * |
| 气囊首次用于大型钻井平台下水获成功;张远平;《中国船舶报》;20111125;第006版 * |
| 船舶与海洋平台平地建造及气囊下水研究;聂晓玲;《哈尔滨工程大学工程硕士学位论文》;20090630;全文 * |
| 船舶气囊下水技术大步走向世界;孙菊香等;《中国修船》;20120630;第25卷(第3期);36-38 * |
| 船舶气囊下水技术现状与展望;孙菊香;《军民两用技术与产品》;20101231(第8期);45-48 * |
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| CN102849180A (en) | 2013-01-02 |
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Granted publication date: 20141231 Termination date: 20170918 |