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Construction method of jack-up drilling platform

A technology of drilling platform and construction method, which is applied in construction, artificial island, infrastructure engineering, etc., can solve the problems of high cost and low efficiency, and achieve the effect of saving cost and improving production efficiency

Active Publication Date: 2018-11-09
SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a low-cost, high-efficiency jack-up drilling platform construction method in order to overcome the defects of high cost and low efficiency in the prior art

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  • Construction method of jack-up drilling platform
  • Construction method of jack-up drilling platform
  • Construction method of jack-up drilling platform

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Embodiment Construction

[0022] The present invention will be further described by means of embodiments below in conjunction with the accompanying drawings, but the present invention is not limited to the scope of the described embodiments.

[0023] Such as figure 1 Shown, the construction method of jack-up drilling platform of the present invention comprises the following steps:

[0024] Step 100: Load the main body in the hull, and make the loading positioning reference of the spud can 20 lower than the baseline of the hull, and insert the spud legs 10 into the main body.

[0025] The jack-up drilling platform comprises a hull, legs 10 and spud cans 20 which comprise a body and a ledge portion 30 .

[0026] During the normal operation of the jack-up drilling platform, the hull and the legs 10 move up and down relative to each other through the lifting mechanism, and the spud shoes 20 are installed on the ends of the legs 10 and inserted into the seabed.

[0027] When the drilling platform is built...

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Abstract

The invention discloses a construction method of a self-elevating type drilling platform. The self-elevating type drilling platform comprises a ship body, a pile leg and a pile shoe; and the pile shoe comprises a body and a boss part. The construction method comprises the following steps: S1, loading the body in the ship body, enabling a loading positioning reference of the pile shoe to be lower than a base line of the ship body, and inserting the pile leg in the body; S2, welding the body and the pile shoe; S3, welding the loss part to the lower part of the body; S4, enabling the loading positioning reference of the pile shoe to be parallel and level to the base line of the ship body; and S5, fixing the pile shoe relative to the ship body. By the method, the ship body does not require to rise, therefore, large pile elevating equipment is not required, costs are saved, and production efficiency is improved.

Description

technical field [0001] The invention relates to a construction method of a self-elevating drilling platform. Background technique [0002] In the construction of the jack-up drilling platform, there is a welding blind spot at the joint between the first leg and the spud can, which cannot be welded according to the normal operation method. At present, the common practice at home and abroad is to carry out the pile lifting operation before the jack-up drilling platform is launched, and the hull of the jack-up drilling platform is raised to expose the welding blind area. After the welding operation is completed, the hull is lowered, and then the drilling platform can be launched. Operation. This will result in a long dock cycle, increase tooling costs, and low operating efficiency. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a low-cost, high-efficiency jack-up drilling platform construction method in order to ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B17/00
CPCE02B17/00E02B17/0004E02B2017/0043E02B2017/0047
Inventor 徐占勇叶飞
Owner SHANGHAI WAIGAOQIAO SHIP BUILDING CO LTD