CN102849185A - Pile leg installation method for self-elevating drilling platform - Google Patents

Pile leg installation method for self-elevating drilling platform Download PDF

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Publication number
CN102849185A
CN102849185A CN2012103453451A CN201210345345A CN102849185A CN 102849185 A CN102849185 A CN 102849185A CN 2012103453451 A CN2012103453451 A CN 2012103453451A CN 201210345345 A CN201210345345 A CN 201210345345A CN 102849185 A CN102849185 A CN 102849185A
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China
Prior art keywords
spud leg
platform
crawler crane
pile leg
closed
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Application number
CN2012103453451A
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Chinese (zh)
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CN102849185B (en
Inventor
吕宏伟
孙友杰
赵京坤
王建才
郑志民
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CNPC Bohai Equipment Manufacturing Co Ltd
China Petroleum Liaohe Equipment Co
Original Assignee
LIAONING LUHAI PETROLEUM EQUIPMENT RESEARCH INSTITUTE CO LTD
China Petroleum Liaohe Equipment Co
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Priority to CN201210345345.1A priority Critical patent/CN102849185B/en
Publication of CN102849185A publication Critical patent/CN102849185A/en
Application granted granted Critical
Publication of CN102849185B publication Critical patent/CN102849185B/en
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Abstract

The invention relates to the technical field of ocean engineering and ship construction, and in particular relates to a pile leg installation method for a self-elevating drilling platform. The method comprises the following steps of: 1, closing the self-elevating drilling platform on the flat ground or a dock; 2, installing a pile leg of the self-elevating drilling platform: (1) installing a crawler crane moving foundation fixture, and fixing the fixture on a main deck of the platform; (2) lowering the height of the drilling platform so that the height difference between the drilling platform and an outfitting quay is reduced to minimum, and driving a crawler crane of over 400 tons to the main deck of the platform through a trestle; (3) hoisting the pile leg formed after a third pile leg section and a fourth pile leg section are closed to the main deck by using the crawler crane; and (4) lifting the platform to the lower position of the top of a second pile leg section by using a lifting system. With the adoption of the method, the cost for a large-sized ultrahigh crane is reduced, the height for installing the pile leg is effectively reduced by using the lifting system, and the construction cost is greatly reduced.

Description

A kind of spud leg installation method of jack-up drilling unit
Technical field:
The present invention relates to a kind of ocean engineering and ship building technical field, particularly a kind of spud leg installation method of jack-up drilling unit.
Background technology:
At present, shoe location is mainly followed in the construction of jack-up drilling unit, and main body closes up, and the lifting basis closes up, and life building, helicopter deck close up and cantilever beam such as closes up at the step, and then spud leg and shoe are closed up.Owing to be subject to gauntry crane height (70-90 rice) restriction, just begin off the stocks after generally receiving two or three section spud leg, then tug the fitting-out quay and hang by the sea more remaining spud leg has been connect.
Above-mentioned jack-up drilling unit is in the spud leg installation process, require very high to weight-lifting equipment, especially at harbour pile extension leg, 300 feet, 350 feet and 400 feet platforms often will reach more than 120 ~ 160 meter height, use the somewhat expensive of large-scale loop wheel machine (hang in crawler crane or sea), cause the fabrication cost of platform to increase severely.
Summary of the invention:
The technical problem to be solved in the present invention provides a kind of spud leg installation method of jack-up drilling unit, and the method has realized saving the expense of using large-scale superelevation loop wheel machine, effectively reduces the height that spud leg is installed by self jacking system, greatly reduces laid down cost.Overcome existing spud leg installation method and need to use large-scale loop wheel machine, somewhat expensive, the deficiency that production cycle is long.
The technical solution used in the present invention is: a kind of spud leg installation method of jack-up drilling unit, and the method step is as follows:
One, jack-up drilling unit on the level land or dock close up:
(1) three shoe location;
(2) each body section of platform is placed on the moulding bed of suitably highly neatly arranging take shoe ground line-transect as benchmark closes up;
(3) after the body section weld seam was all finished, lifting basis and tightening device closed up, and the bow superstructure is closed up;
(4) after the level land closed up, first paragraph spud leg bottom closed up with shoe more first for first paragraph spud leg and second segment spud leg;
Two, the installation of pile legs of self-elevating drilling platform:
(1) crawler crane is installed and is moved basic frock, be fixed on the platform main deck;
(2) reduce the drilling platform height, make itself and the fitting-out quay discrepancy in elevation be reduced to minimum, by trestle crawler crane more than 400 tons is reached on the platform main deck;
(3) be lifted on the main deck with the spud leg of crawler crane after with the 3rd section spud leg and the 4th section spud leg folding;
(4) utilize jacking system that platform is risen on the lower side position, second segment spud leg top;
(5) utilize more than 400 tons crawler crane that the 3rd section and the 4th section spud leg are docked, adjust, locate and weld with the second segment spud leg;
(6) utilize jacking system decline platform to first paragraph spud leg middle part with upper/lower positions, repeat front (3), (4), (5) step, finish the spreading of all the other spud legs;
(7) after the spud leg spreading is finished, remove crawler crane and move basic frock, carry out again cantilever beam and close up.
The invention has the beneficial effects as follows: the present invention is owing to adopted the mode of platform self jacking system and crawler crane pile extension leg on main deck, thereby have and save the effect of using large-scale superelevation loop wheel machine expense, effectively reduce the height that spud leg is installed, the construction period is short, greatly reduces laid down cost.
The specific embodiment:
A kind of spud leg installation method of jack-up drilling unit, the method step is as follows:
One, jack-up drilling unit on the level land or dock close up:
(1) three shoe location;
(2) each body section of platform is placed on the moulding bed of suitably highly neatly arranging take shoe ground line-transect as benchmark closes up;
(3) after the body section weld seam was all finished, lifting basis and tightening device closed up, and the bow superstructure is closed up;
(4) after the level land closed up, first paragraph spud leg bottom closed up with shoe more first for first paragraph spud leg and second segment spud leg;
Two, the installation of pile legs of self-elevating drilling platform:
(1) crawler crane is installed and is moved basic frock, be fixed on the platform main deck;
(2) reduce the drilling platform height, make itself and the fitting-out quay discrepancy in elevation be reduced to minimum, by trestle crawler crane more than 400 tons is reached on the platform main deck;
(3) be lifted on the main deck with the spud leg of crawler crane after with the 3rd section spud leg and the 4th section spud leg folding;
(4) utilize jacking system that platform is risen on the lower side position, second segment spud leg top;
(5) utilize more than 400 tons crawler crane that the 3rd section and the 4th section spud leg are docked, adjust, locate and weld with the second segment spud leg;
(6) utilize jacking system decline platform to first paragraph spud leg middle part with upper/lower positions, repeat front (3), (4), (5) step, finish the spreading of all the other spud legs;
(7) after the spud leg spreading is finished, remove crawler crane and move basic frock, carry out again cantilever beam and close up.
Be understandable that, more than about specific descriptions of the present invention, only for the present invention being described and being not to be subject to the described technical scheme of the embodiment of the invention, those of ordinary skill in the art is to be understood that, still can make amendment or be equal to replacement the present invention, to reach identical technique effect; Use needs as long as satisfy, all within protection scope of the present invention.

Claims (1)

1. the spud leg installation method of a jack-up drilling unit, it is characterized in that: the method step is as follows:
One, jack-up drilling unit on the level land or dock close up:
(1) three shoe location;
(2) each body section of platform is placed on the moulding bed of suitably highly neatly arranging take shoe ground line-transect as benchmark closes up;
(3) after the body section weld seam was all finished, lifting basis and tightening device closed up, and the bow superstructure is closed up;
(4) after the level land closed up, first paragraph spud leg bottom closed up with shoe more first for first paragraph spud leg and second segment spud leg;
Two, the installation of pile legs of self-elevating drilling platform:
(1) crawler crane is installed and is moved basic frock, be fixed on the platform main deck;
(2) reduce the drilling platform height, make itself and the fitting-out quay discrepancy in elevation be reduced to minimum, by trestle crawler crane more than 400 tons is reached on the platform main deck;
(3) be lifted on the main deck with the spud leg of crawler crane after with the 3rd section spud leg and the 4th section spud leg folding;
(4) utilize jacking system that platform is risen on the lower side position, second segment spud leg top;
(5) utilize more than 400 tons crawler crane that the 3rd section and the 4th section spud leg are docked, adjust, locate and weld with the second segment spud leg;
(6) utilize jacking system decline platform to first paragraph spud leg middle part with upper/lower positions, repeat front (3), (4), (5) step, finish the spreading of all the other spud legs;
(7) after the spud leg spreading is finished, remove crawler crane and move basic frock, carry out again cantilever beam and close up.
CN201210345345.1A 2012-09-18 2012-09-18 Pile leg installation method for self-elevating drilling platform Expired - Fee Related CN102849185B (en)

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Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104477323A (en) * 2014-12-03 2015-04-01 舟山长宏国际船舶修造有限公司 Shoe preferential docking technology
CN104878733A (en) * 2015-04-21 2015-09-02 南通蓝岛海洋工程有限公司 Drilling platform pile leg segmented closing technology
CN104929097A (en) * 2014-09-28 2015-09-23 南通振华重型装备制造有限公司 300-foot self-elevating drilling platform spud leg and shoe segmented carrying method
CN105084195A (en) * 2015-08-27 2015-11-25 上海外高桥造船有限公司 Pile leg shifting method
CN105152040A (en) * 2015-09-08 2015-12-16 山东海湾吊装工程股份有限公司 Process for sectionally closing and hoisting pile legs of self-elevating offshore oil platform through crawler crane
CN105178274A (en) * 2015-08-21 2015-12-23 上海外高桥造船有限公司 Constructing method for self-elevating platform
CN105523477A (en) * 2016-01-08 2016-04-27 招商局重工(江苏)有限公司 Method for carrying out pile leg connection by utilizing 3000t floating crane
CN105586864A (en) * 2015-11-30 2016-05-18 中国国际海运集装箱(集团)股份有限公司 Method for folding self-lifting-type platform truss-type pile legs
CN105735223A (en) * 2016-03-18 2016-07-06 中国石油集团渤海石油装备制造有限公司 Technology for turning and sliding pile extension of pile legs of self-elevating drilling platform
CN105836061A (en) * 2016-03-21 2016-08-10 中国船舶工业集团公司第七○八研究所 Self-lifting semi-submersible type underwater working platform
CN106468054A (en) * 2015-08-17 2017-03-01 辽宁陆海石油装备研究院有限公司 A kind of four spud legs pair boring tower self-elevating drilling platform
CN104386219B (en) * 2014-10-15 2017-07-25 舟山长宏国际船舶修造有限公司 The follow-up docking technique of jack-up unit shoe
CN107399412A (en) * 2016-05-19 2017-11-28 烟台中集来福士海洋工程有限公司 MOPU method of construction
CN107653855A (en) * 2016-07-26 2018-02-02 中集海洋工程研究院有限公司 The spud leg folding method of jack-up unit
CN107653856A (en) * 2016-07-26 2018-02-02 中集海洋工程研究院有限公司 The construction folding method of jack-up unit

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Cited By (20)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104929097A (en) * 2014-09-28 2015-09-23 南通振华重型装备制造有限公司 300-foot self-elevating drilling platform spud leg and shoe segmented carrying method
CN104929097B (en) * 2014-09-28 2017-04-12 南通振华重型装备制造有限公司 300-foot self-elevating drilling platform spud leg and shoe segmented carrying method
CN104386219B (en) * 2014-10-15 2017-07-25 舟山长宏国际船舶修造有限公司 The follow-up docking technique of jack-up unit shoe
CN104477323A (en) * 2014-12-03 2015-04-01 舟山长宏国际船舶修造有限公司 Shoe preferential docking technology
CN104878733A (en) * 2015-04-21 2015-09-02 南通蓝岛海洋工程有限公司 Drilling platform pile leg segmented closing technology
CN106468054A (en) * 2015-08-17 2017-03-01 辽宁陆海石油装备研究院有限公司 A kind of four spud legs pair boring tower self-elevating drilling platform
CN105178274A (en) * 2015-08-21 2015-12-23 上海外高桥造船有限公司 Constructing method for self-elevating platform
CN105084195B (en) * 2015-08-27 2017-09-01 上海外高桥造船有限公司 Spud leg displacement method
CN105084195A (en) * 2015-08-27 2015-11-25 上海外高桥造船有限公司 Pile leg shifting method
CN105152040A (en) * 2015-09-08 2015-12-16 山东海湾吊装工程股份有限公司 Process for sectionally closing and hoisting pile legs of self-elevating offshore oil platform through crawler crane
CN105586864A (en) * 2015-11-30 2016-05-18 中国国际海运集装箱(集团)股份有限公司 Method for folding self-lifting-type platform truss-type pile legs
CN105523477A (en) * 2016-01-08 2016-04-27 招商局重工(江苏)有限公司 Method for carrying out pile leg connection by utilizing 3000t floating crane
CN105735223A (en) * 2016-03-18 2016-07-06 中国石油集团渤海石油装备制造有限公司 Technology for turning and sliding pile extension of pile legs of self-elevating drilling platform
CN105735223B (en) * 2016-03-18 2017-12-15 中国石油集团渤海石油装备制造有限公司 A kind of technique for turning to sliding pile extension for pile legs of self-elevating drilling platform
CN105836061A (en) * 2016-03-21 2016-08-10 中国船舶工业集团公司第七○八研究所 Self-lifting semi-submersible type underwater working platform
CN107399412A (en) * 2016-05-19 2017-11-28 烟台中集来福士海洋工程有限公司 MOPU method of construction
CN107399412B (en) * 2016-05-19 2019-11-01 烟台中集来福士海洋工程有限公司 The method of construction of MOPU
CN107653855A (en) * 2016-07-26 2018-02-02 中集海洋工程研究院有限公司 The spud leg folding method of jack-up unit
CN107653856A (en) * 2016-07-26 2018-02-02 中集海洋工程研究院有限公司 The construction folding method of jack-up unit
CN107653856B (en) * 2016-07-26 2019-10-22 中集海洋工程研究院有限公司 The construction folding method of jack-up unit

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