Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Annular lower floating body semi-submersible platform

A semi-submersible platform, annular technology, applied in floating buildings, ship parts, anchoring arrangements, etc., can solve the problem of low working efficiency of the propeller, and achieve the effect of reducing power, good stability and improving working efficiency

Inactive Publication Date: 2013-03-13
DALIAN SHIPBUILDING IND
View PDF7 Cites 22 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The closer the thrusters are, the more interactions will occur, making the thrusters less efficient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Annular lower floating body semi-submersible platform
  • Annular lower floating body semi-submersible platform
  • Annular lower floating body semi-submersible platform

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Embodiments of the present invention will be further described below in conjunction with the accompanying drawings.

[0020] Such as Figure 1~5 As shown, a semi-submersible platform with an annular lower floating body is provided with a lower floating body 1 and an upper hull 2, the two are connected by columns 3, the lower floating body 1 is a regular hexagonal annular cylinder, and the column 3 is five Hexagonal cylinder, the uprights 3 are evenly distributed on the six corners of the lower floating body 1, the upper hull 2 ​​is a hexagonal frustum with a floating outward, and the center of the box deck 8 of the upper hull 2 ​​has a moon pool 9.

[0021] This platform is also equipped with a dynamic positioning system and an anchoring positioning system. The anchoring positioning system is composed of three sets of windlasses 4 arranged at the corners of the port bow, port stern, and starboard center of the upper hull 2 ​​deck. The windlass is equipped with four an...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention discloses an annular lower floating body semi-submersible platform. The annular lower floating body semi-submersible platform is provided with a lower floating body (1) and an upper ship body (2) which are connected through stand columns (3), wherein the lower floating body (1) is a regular hexagonal annular column body; the stand columns (3) are pentagonal column bodies and are uniformly distributed on the six corners of the lower floating body (1); the upper ship body (2) is a hexagonal frustum with a flare; and a moon pool (9) is arranged in the center of a box-type deck (8) of the upper ship body (2). The annular lower floating body semi-submersible platform is excellent in motion performance, has the characteristic of unconditional stability, is wide in application range of operation water depth, good in overall structure strength, light in weight, low in manufacturing cost and low in operation energy consumption, and can be applied to deepwater oil and gas exploitation under harsh marine environment conditions.

Description

Technical field: [0001] The invention relates to an offshore oil and natural gas development device, in particular to a semi-submersible drilling and oil production platform suitable for harsh weather and sea conditions. Background technique: [0002] With the development of offshore oil and gas entering deep water, traditional drilling and oil production platforms can no longer meet the needs of offshore deep water oil and gas development. The floating platform is the main tool suitable for the exploration and development of deep-water oil and gas fields, and the semi-submersible platform is more suitable for harsh sea conditions because of its good stability. [0003] A traditional semi-submersible platform has two parallel lower floating bodies with uprights on the lower buoys, and the uprights are connected by tubular cross braces. The relatively weak tubular cross brace bears the longitudinal shear force and transverse separation force from the lower floating body, and...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B63B35/44B63B21/50
Inventor 赵杰姜福洪董庆辉林海花马延德王飞戴挺伞立忠刘刚郭洪生冷阿伟刘跃强平锋彭贵胜梅荣兵王欣姚云熙李在鹏王海军刘洪峰刘庆江孙连科马来润
Owner DALIAN SHIPBUILDING IND
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com