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A jacket base plate structure and a jacket comprising the bottom base plate structure

A jacket and template technology, applied in infrastructure engineering, underwater structures, buildings, etc., can solve the problems that cannot meet the needs of large-scale drilling and production platforms or central processing platform jacket transportation and launching, and achieve simple construction, Effects of reduced capacity requirements and reduced installation weight

Active Publication Date: 2022-01-07
CHINA NAT OFFSHORE OIL CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the launching barge HYSY229 with the strongest capacity in China has a launching capacity of about 30,000 tons, which often cannot meet the transportation and launching requirements of large-scale drilling and production platforms or central processing platform jackets with a water depth of 300-400m.

Method used

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  • A jacket base plate structure and a jacket comprising the bottom base plate structure
  • A jacket base plate structure and a jacket comprising the bottom base plate structure
  • A jacket base plate structure and a jacket comprising the bottom base plate structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] Such as figure 1 , figure 2 , image 3 As shown, this embodiment provides a base plate structure at the bottom of a large jacket in ultra-deep water, including the following components:

[0040] Base plate main legs 3, several of the base plate main legs 3 are vertically arranged below the jacket main body structure 1 and distributed in a polygonal shape; the top of each of the base plate main legs 3 is provided with a support pad 5, and each of the base plate main legs 3 A pile holder 6 is provided near the top of the main leg 3 of the base plate;

[0041] Pile group sleeves 7, several groups of pile group sleeves 7 are respectively connected to the corresponding main legs 3 of the base plate through connecting plates, and the inside of each group of pile group sleeves 7 is provided with a fixing device driven into the seabed. pile;

[0042]The horizontal façade frame 8 and the first vertical façade frame 9 , the base plate main legs 3 are sequentially and alterna...

Embodiment 2

[0044] Such as figure 1 , figure 2 , image 3 , Figure 7 As shown, this embodiment provides a base plate structure at the bottom of a large jacket in ultra-deep water, including the following components:

[0045] Base plate main legs 3, several of the base plate main legs 3 are vertically arranged below the jacket main body structure 1 and distributed in a polygonal shape; the top of each of the base plate main legs 3 is provided with a support pad 5, and each of the base plate main legs 3 A pile holder 6 is provided near the top of the main leg 3 of the base plate;

[0046] Pile group sleeves 7, several groups of pile group sleeves 7 are respectively connected to the corresponding main legs 3 of the base plate through connecting plates, and the inside of each group of pile group sleeves 7 is provided with a fixing device driven into the seabed. pile;

[0047] The horizontal façade frame 8 and the first vertical façade frame 9 , the base plate main legs 3 are sequential...

Embodiment 3

[0052] Such as Figures 1 to 8 As shown, this embodiment provides a base plate structure at the bottom of a large jacket in ultra-deep water, including the following components:

[0053] Base plate main legs 3, several of the base plate main legs 3 are vertically arranged below the jacket main body structure 1 and distributed in a polygonal shape; the top of each of the base plate main legs 3 is provided with a support pad 5, and each of the base plate main legs 3 A pile holder 6 is provided near the top of the main leg 3 of the base plate;

[0054] Pile group sleeves 7, several groups of pile group sleeves 7 are respectively connected to the corresponding main legs 3 of the base plate through connecting plates, and the inside of each group of pile group sleeves 7 is provided with a fixing device driven into the seabed. pile;

[0055] The horizontal façade frame 8 and the first vertical façade frame 9 , the base plate main legs 3 are sequentially and alternately connected th...

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Abstract

The present invention relates to a bottom base plate structure of a jacket and a jacket comprising the bottom base plate structure. Polygonal distribution; the top of each of the base plate main legs 3 is provided with a support pad 5, and each of the base plate main legs 3 is provided with a pile clamp 6 near its top; pile group sleeves 7, several groups of The pile group sleeves 7 are respectively connected to the corresponding main legs 3 of the base plate through connecting plates, and the inside of each group of pile group sleeves 7 is provided with fixed piles driven into the seabed; the horizontal facade frame 8 and the second A vertical façade frame 9 , the base plate main legs 3 are alternately connected sequentially through the horizontal façade frame 8 and the first vertical façade frame 9 to form a polygonal base plate structure. The invention divides the jacket into two parts, the main body structure of the upper jacket and the base plate structure of the bottom, which are installed separately at sea, which can effectively reduce the installation weight of the jacket itself.

Description

technical field [0001] The invention relates to a base plate structure at the bottom of a jacket and a jacket comprising the base plate structure, belonging to the field of offshore oil and gas development equipment. Background technique [0002] In recent years, a number of oil and gas fields with a water depth of 300-400 m have been discovered in the South my country Sea. In this water depth range, the fixed jacket platform is still a competitive platform model. Jacket platforms used in seas with a water depth of more than 300m are usually called ultra-deepwater jacket platforms. The application of such ultra-deepwater jacket platforms is often limited by domestic construction and installation resources, especially the capacity of launching barges. At present, the launching barge HYSY229 with the strongest capacity in China has a launching capacity of about 30,000 tons, which often cannot meet the transportation and launching requirements of large-scale drilling and produc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E02B17/00
CPCE02B17/00E02B2017/006
Inventor 贾旭孙友义付殿福沈晓鹏王忠畅于春洁刘明慈洪生邵卫东董德龙王春升张晖
Owner CHINA NAT OFFSHORE OIL CORP
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