CN101962946A - Method for arranging hoisting points and floating-supported conduit frame with skirt pile sleeves - Google Patents

Method for arranging hoisting points and floating-supported conduit frame with skirt pile sleeves Download PDF

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Publication number
CN101962946A
CN101962946A CN2009100895773A CN200910089577A CN101962946A CN 101962946 A CN101962946 A CN 101962946A CN 2009100895773 A CN2009100895773 A CN 2009100895773A CN 200910089577 A CN200910089577 A CN 200910089577A CN 101962946 A CN101962946 A CN 101962946A
Authority
CN
China
Prior art keywords
skirt pile
conduit frame
jacket
pile sleeve
skirt
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
Application number
CN2009100895773A
Other languages
Chinese (zh)
Inventor
俞剑勇
崔玉军
辛晓辉
张延军
高静坤
张艳芳
尹汉军
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Offshore Oil Corp CNOOC
Offshore Oil Engineering Co Ltd
Original Assignee
China National Offshore Oil Corp CNOOC
Offshore Oil Engineering Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China National Offshore Oil Corp CNOOC, Offshore Oil Engineering Co Ltd filed Critical China National Offshore Oil Corp CNOOC
Priority to CN2009100895773A priority Critical patent/CN101962946A/en
Publication of CN101962946A publication Critical patent/CN101962946A/en
Pending legal-status Critical Current

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Abstract

The invention relates to a method for arranging a hoisting point and a floating-supported conduit frame with skirt pile sleeves. The floating-supported conduit frame comprises a conduit frame main body, wherein the bottom of the conduit frame main body is provided with an underwater framework, a plurality of horizontal layers are arranged on the underwater framework, and a plurality of water-isolating sleeve guides are arranged on the horizontal layers; both sides of the underwater framework are provided with a plurality of main upright leg pipe columns, and ice cones are arranged on the main upright leg pipe columns; and a skirt pile sleeves are arranged on the plane of the conduit frame main body beyond the four corners, and the skirt pile sleeves are connected with the main upright leg pipe columns into a whole through a plurality of support rods to form an open type straight leg conduit frame structure with the skirt pile sleeves. The hoisting points are arranged on the top of the skirt pile sleeves. The method structurally increases the loading capacity of the supporting conduit frame, and the conduit frame is applicable to loading larger upper blocks; the penetration depth of piles driven into the bottom of the sea and pile driving refusal risk caused by marine pile driving work can be reduced, and hoisting can not be influenced by well mouth guides and the ice cones arranged on conduit frame pile legs; and the marine installation process of the conduit frame is furthest simplified, and marine installation cost and risk are also reduced.

Description

The floating holder jacket of band skirt pile sleeve and the method to set up of suspension centre
Technical field
The present invention relates to jacket, relate in particular to a kind ofly, belong to offshore oil engineering field with the floating holder jacket of skirt pile sleeve and the method to set up of suspension centre.
Background technology
In the petroleum development engineering, need build various platforms such as production platform, accommodation platform, central processing platform at sea at sea.Platform is main comprising generally: ocean engineering chunk, the marine ocean engineering structures such as a jacket, single-point that support.
Exploitation along with the larger hydrocarbon field, platform structure is increasing, and the upper chunk load sharply increases, and traditional chunk lifting mounting means has become very difficult, need to adopt the floating holder of chunk mounting means, the jacket that supports as chunk adopts floating holder jacket usually.
As shown in Figure 1, the floating holder jacket of existing macrotype platform is the straight leg jacket structure of open type, comprise: the jacket body that connects and composes by strut by main leg tube column 3 and leveling course 1, the bottom of jacket body is provided with framework under water, framework is provided with two leveling courses 1 under water, leveling course 1 is provided with several waterproof casing guiding 2, and the both sides of leveling course 1 are provided with several main leg tube columns 3, and main leg tube column 3 is provided with ice piton 4.
Existing jacket owing to after whole platform load strengthens, need stronger pile foundation to be used for supporting, and squeeze into marine pile go into the mud degree of depth need nearly hundred meters dark, easily cause during the marine guidance piling operation and refuse to hammer into shape risk.
When jacket being installed at sea suspension centre 5 need be set on jacket, lift for loop wheel machine.Above-mentioned jacket is a chunk floating-supported type jacket, and suspension centre 5 generally is located at below first leveling course of jacket, and the lifting rope 6 of loop wheel machine (generally adopting derrick barge) passes leveling course and hangs on the suspension centre 5 and implement operation.The sea of existing jacket is installed to be provided with and is had following shortcoming:
1, because suspension centre 5 is arranged on below the jacket leveling course 1, more well head guiding 2 is set on the jacket, has limited lifting rope 6, cause lifting rope 6 angles to increase, increased the hoisting height of loop wheel machine passing through leveling course connection suspension centre 5.Therefore, need the stronger derrick barge of lifting ability, increased equipment cost.
2, lifting rope leads 2 nearerly apart from well head, and jacket collides well head guiding 2 easily when implementing lifting operation.
For fear of above-mentioned shortcoming, the improved route of existing jacket mounting means can only be that suspension centre 5 is moved upward on the main leg tube column 3 of jacket leveling course more than 1, but this suspension centre setting has the following disadvantages:
1) install for the floating holder that does not influence upper brace, chunk is after lifting puts in place, and the suspension centre on the main leg tube column 3 must excise, so, if the position of suspension centre 5 below 8, can be brought cutting under water at water surface curve; The position of suspension centre 5 is as at water surface curve more than 8, then occupy the position of ice piton 4, having excised also needs cylinder to polish flat so that the ice piton 9 (it is to advance in the ship for fear of the floating holder of chunk to collide with ice piton that this part ice piton 9 is left to marine the installation in advance) of reserved part is installed, prolong the operation on the sea time, increased the risk of operation on the sea.
2) as suspension centre is moved upwards up to ice piton more than 4 again, then can cause root 10 local pressures of main leg tube column 3 to increase, need to strengthen the intensity of main leg tube column 3 roots, cause spud leg column materials amount to increase, whole jacket weightening finish, material, construction and installation cost all can correspondingly increase.
Summary of the invention
Main purpose of the present invention is to overcome the above-mentioned shortcoming that prior art exists, and provide a kind of with the floating holder jacket of skirt pile sleeve and the method to set up of suspension centre, it is provided with the skirt pile sleeve structure outside four jiaos of jacket body plane, make jacket increase by four foundation piles, on the basis that does not increase the foundation pile construction difficulty, promote the supporting capacity of supporting tube frame from the structure angle, adapted to more large-scale upper chunk load; Greatly reduce the stake of squeezing into the seabed go into the mud degree of depth and marine guidance piling operation the time cause and refuse to hammer into shape risk, and not influenced by the anti-ice piton on well head guiding and the jacket spud leg during lifting; Farthest simplify the marine installation process of jacket, reduced marine installation cost and risk.
The objective of the invention is to realize by following technical scheme:
A kind of floating holder jacket with skirt pile sleeve, comprise: the jacket body, the bottom of jacket body is provided with framework under water, framework is provided with several leveling courses under water, leveling course is provided with several waterproof casing guiding, the framework both sides are provided with several main leg tube columns under water, and main leg tube column is provided with ice piton; It is characterized in that: be provided with skirt pile sleeve outside four jiaos of jacket body plane, this skirt pile sleeve connects as one the straight leg jacket structure of open type that constitutes a band skirt pile sleeve by several struts and main leg tube column.
It is outside the frame construction of skeleton that described skirt pile sleeve is arranged on main leg tube column.
The height of described skirt pile sleeve is lower than the height of framework under water.
A kind of method to set up of the floating holder jacket suspension centre with skirt pile sleeve, it is characterized in that: the suspension centre setting is installed in the top of skirt pile sleeve.
Beneficial effect of the present invention: the present invention is owing to be outside four jiaos of jacket body plane the skirt pile sleeve structure to be set, make jacket increase by four foundation piles, on the basis that does not increase the foundation pile construction difficulty, promote the supporting capacity of supporting tube frame from the structure angle, adapted to more large-scale upper chunk load; That has reduced the stake of squeezing into the seabed goes into the mud degree of depth, stake go into the mud depth controlled in 70 meters, cause when greatly reducing the marine guidance piling operation and refuse to hammer into shape risk, and not influenced by the ice piton on well head guiding and the jacket spud leg during lifting; Lifting rope no longer is subjected to the influence of leveling course, can reduce the angle of lifting rope to greatest extent, can adopt economic crane barge resource; Farthest simplify the marine installation process of jacket, reduced marine installation cost and risk.
Description of drawings:
Fig. 1 is the structural representation of existing floating holder jacket.
Fig. 2 is provided with schematic diagram for the structure and the suspension centre of jacket of the present invention.
Major label description in figure:
1 leveling course, 2 waterproof casings guiding, 3 main leg tube columns, 4 ice pitons, 5 suspension centres, 6 lifting ropes, 7 skirt pile sleeves, 8 water surface curves, 9 ice pitons, 10 column roots.
The specific embodiment
As shown in Figure 2, the floating holder jacket of band skirt pile sleeve of the present invention comprises: the jacket body that is connected and composed by strut by main leg tube column 3 and leveling course 1, the bottom of jacket body is provided with framework under water, framework is provided with two leveling courses 1 under water, 1 is provided with several waterproof casing guiding 2 on the leveling course, present embodiment is: on first and second leveling course several waterproof casings guiding 2 are set, and second leveling course drops on mud face place, seabed after installation; The framework both sides are provided with several main leg tube columns 3 under water, and main leg tube column 3 is provided with ice piton 4; Be provided with skirt pile sleeve 7 outside four jiaos of jacket body plane, this skirt pile sleeve 7 adopts welding manner to connect as one the straight leg jacket structure of open type of formation one band skirt pile sleeve by several struts and main leg tube column 3.
Present embodiment is: it is outside the frame construction of skeleton that skirt pile sleeve 7 is arranged on main leg tube column 3.
The height of skirt pile sleeve 7 is lower than the height of framework under water.
The method to set up of the floating holder jacket suspension centre of above-mentioned band skirt pile sleeve: suspension centre 5 is provided with the top that is installed in skirt pile sleeve 7.
Present embodiment is: adopt the suspension centre plate to add ring-plate suspension centre 5, and adopt welding manner to be fixed on the top of skirt pile sleeve 7 suspension centre 5.
When implementing lifting operation, by snap ring lifting rope 6 is connected on the suspension centre hole, the other end of lifting rope 6 hangs on the suspension hook of loop wheel machine and carries out lifting operation.
During installation, by piling bar waterborne that passes main leg tube column and the snag that passes skirt pile sleeve, jacket is fixed in the seabed, wherein, piling bar waterborne adopts welding to be connected with main leg tube column 3 with the mode of grouting, and snag adopts filling high-strength cement slurry mode to be connected with skirt pile sleeve 7.
Leveling course 1, suspension centre 5 give system for adopting prior art, and the technology of not specified (NS) is a prior art.
The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, every foundation technical spirit of the present invention all still belongs in the scope of technical solution of the present invention any simple modification, equivalent variations and modification that above embodiment did.

Claims (4)

1. floating holder jacket with skirt pile sleeve, comprise: the jacket body, the bottom of jacket body is provided with framework under water, framework is provided with several leveling courses under water, leveling course is provided with several waterproof casing guiding, the framework both sides are provided with several main leg tube columns under water, and main leg tube column is provided with ice piton; It is characterized in that: be provided with skirt pile sleeve outside four jiaos of jacket body plane, this skirt pile sleeve connects as one the straight leg jacket structure of open type that constitutes a band skirt pile sleeve by several struts and main leg tube column.
2. the floating holder jacket of band skirt pile sleeve according to claim 1 is characterized in that: it is outside the frame construction of skeleton that described skirt pile sleeve is arranged on main leg tube column.
3. the floating holder jacket of band skirt pile sleeve according to claim 1 and 2 is characterized in that: the height of described skirt pile sleeve is lower than the height of framework under water.
4. method to set up with the floating holder jacket suspension centre of skirt pile sleeve, it is characterized in that: the suspension centre setting is installed in the top of skirt pile sleeve.
CN2009100895773A 2009-07-24 2009-07-24 Method for arranging hoisting points and floating-supported conduit frame with skirt pile sleeves Pending CN101962946A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2009100895773A CN101962946A (en) 2009-07-24 2009-07-24 Method for arranging hoisting points and floating-supported conduit frame with skirt pile sleeves

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2009100895773A CN101962946A (en) 2009-07-24 2009-07-24 Method for arranging hoisting points and floating-supported conduit frame with skirt pile sleeves

Publications (1)

Publication Number Publication Date
CN101962946A true CN101962946A (en) 2011-02-02

Family

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Family Applications (1)

Application Number Title Priority Date Filing Date
CN2009100895773A Pending CN101962946A (en) 2009-07-24 2009-07-24 Method for arranging hoisting points and floating-supported conduit frame with skirt pile sleeves

Country Status (1)

Country Link
CN (1) CN101962946A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103266625A (en) * 2013-05-31 2013-08-28 中海石油(中国)有限公司番禺作业公司 Gravity base structure seabed base disc
CN103290823A (en) * 2013-06-27 2013-09-11 中国海洋石油总公司 Wellhead frame mounting guide device
CN103758095A (en) * 2014-01-08 2014-04-30 中国海洋石油总公司 Offshore jacket production platform
CN103882842A (en) * 2014-03-20 2014-06-25 中国海洋石油总公司 Cross-sliding-way hoisting in-position technology for horizontal sheet of large pipe guiding frame
CN107010170A (en) * 2016-01-27 2017-08-04 中国国际海运集装箱(集团)股份有限公司 The preparation method and folding method of waterproof casing base platform
CN113236141A (en) * 2021-06-08 2021-08-10 中国海洋石油集团有限公司 Surface layer conduit bearing capacity reinforcing device and operation method thereof

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103266625A (en) * 2013-05-31 2013-08-28 中海石油(中国)有限公司番禺作业公司 Gravity base structure seabed base disc
CN103266625B (en) * 2013-05-31 2015-04-22 中海石油(中国)有限公司番禺作业公司 Gravity base structure seabed base disc
CN103290823A (en) * 2013-06-27 2013-09-11 中国海洋石油总公司 Wellhead frame mounting guide device
CN103758095A (en) * 2014-01-08 2014-04-30 中国海洋石油总公司 Offshore jacket production platform
CN103882842A (en) * 2014-03-20 2014-06-25 中国海洋石油总公司 Cross-sliding-way hoisting in-position technology for horizontal sheet of large pipe guiding frame
CN107010170A (en) * 2016-01-27 2017-08-04 中国国际海运集装箱(集团)股份有限公司 The preparation method and folding method of waterproof casing base platform
CN107010170B (en) * 2016-01-27 2019-02-15 中国国际海运集装箱(集团)股份有限公司 The production method and folding method of waterproof casing base platform
CN113236141A (en) * 2021-06-08 2021-08-10 中国海洋石油集团有限公司 Surface layer conduit bearing capacity reinforcing device and operation method thereof

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Application publication date: 20110202