300-foot self-elevating drilling platform spud leg and shoe segmented carrying method

A drilling platform leg and jack-up technology, which is applied in the field of offshore engineering and ship construction, can solve problems such as undiscovered, and achieve the effects of controlling welding deformation, superior space conditions, and improving welding quality and work efficiency.

Active Publication Date: 2015-09-23
NANTONG ZHENHUA HEAVY EQUIP MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

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Method used

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  • 300-foot self-elevating drilling platform spud leg and shoe segmented carrying method
  • 300-foot self-elevating drilling platform spud leg and shoe segmented carrying method
  • 300-foot self-elevating drilling platform spud leg and shoe segmented carrying method

Examples

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Embodiment 1

[0040] Such as figure 1 As shown, the present invention discloses a stepwise loading method of pile legs and pile boots for a 300-foot jack-up drilling platform. The method is to first fold the first section 1 of the pile legs and the pile boots 2 on the slideway of the offshore platform. Then, the first section of the pile leg is hoisted integrally into the enclosed shaft 3 sections for positioning.

[0041] Such as figure 2 As shown, the specific steps of the above-mentioned pile leg and pile shoe mounting method are as follows:

[0042] (1) The first section of the pile leg and the pile shoe are closed in sections:

[0043] S1. Arrangement of pile shoe tire frame: such as figure 2 As shown, the pile shoes 2 are placed on the offshore platform 4 in sections, and a tire frame 5 is arranged at the bottom of the pile shoes 2, and then the levelness of the pile shoes 2 is measured and adjusted to keep the pile shoes level;

[0044] S2, the first section of the leg is turned over to in...

Embodiment 2

[0053] Such as Picture 9 As shown, this embodiment is on the basis of embodiment 1. In step S1, the level of the pile shoe is adjusted, and the level of the pile shoe section is measured based on the foreign punch hole 12 in the pile shoe section workshop. Degree, and ensure the levelness ≤ 2mm.

[0054] In this embodiment, the levelness of the pile shoe sections is measured by the foreign punching eyes on the pile shoe sections, and the levelness is guaranteed to be ≤ 2mm, which ensures the accuracy of the first section of the subsequent pile leg and the pile shoe.

Embodiment 3

[0056] Such as Picture 10 As shown, this embodiment is based on embodiment 1 or embodiment 2, in step S3, in step S3, the hoisting of the first section 1 of the pile leg is staggered by 5° from the vertical plate 7 of the pile shoe segment, and the first section of the pile leg is rotated to view the pile shoe Adjust the assembly clearance between the top and bottom of the vertical plate and the rack plate. If the gap between the top of the vertical plate and the rack is too small, the legs cannot be rotated in place, and the vertical plate is repaired; if the gap between the bottom of the vertical plate and the rack is too small If it is too small, the leg cannot be rotated in place. Adjust the bottom of the main chord to the outside to rotate the leg in place.

[0057] In this embodiment, when hoisting, the first section of the pile leg is staggered by 5° with the segmented vertical plate of the pile shoe, and then the first section of the pile leg is rotated. By checking the ...

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Abstract

The invention relates to a 300-foot self-elevating drilling platform spud leg and shoe segmented carrying method. The method comprises the steps that firstly, a first section of a spud leg and a shoe are combined, and then a trunk section of the first section of the spud leg is integrally hoisted to be positioned; and the combining method of the first section of the spud leg and the shoe comprises the steps of arrangement of a shoe jig frame, reversed installation of a mooring rope at the first section of the spud leg, hoisting of the first section of the spud leg, fixing of the mooring rope, adjusting and welding of the relative positions of the first section of the spud leg and the shoe section, and installation of a reinforcing rib plate and a bulk tube. The 300-foot self-elevating drilling platform spud leg and shoe segmented carrying method has the advantages that combination is conducted before hoisting; combination of a spud leg and a shoe in a narrow space of the trunk section in the prior art is changed into combination on a maritime work platform; the construction environment is improved; a superior spatial condition is provided for welding; the welding quality and working efficiency are improved.

Description

Technical field [0001] The invention relates to the technical field of marine engineering and ship construction, and in particular to a method for carrying pile legs and pile shoes in sections of a 300-foot jack-up drilling platform. Background technique [0002] In the process of offshore oil and gas resource development, jack-up drilling platforms are mainly used to explore oil and gas wells, and can also be used for production wells and workover operations. They can also be used as drilling and production platforms in early production. The realization of these main functions mainly depends on For its special components such as pile legs, lifting systems, locking devices and cantilever beams. [0003] The jack-up drilling platform is loaded with drilling machinery, power, equipment, residential equipment and a number of liftable legs. During drilling, the pile shoes at the bottom of the legs are on the bottom, and the platform rises to a certain height from the sea along the legs...

Claims

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Application Information

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IPC IPC(8): E02B17/02
Inventor 沈鹏鹏
Owner NANTONG ZHENHUA HEAVY EQUIP MFG
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