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Upper part connecting device of ocean drilling vertical pipe

A technology for connecting device and riser, applied in drill pipe, drill pipe, casing and other directions, can solve the problem of high manufacturing and installation costs, and achieve the effects of low manufacturing cost, weight reduction, and saving manufacturing and installation transportation costs

Pending Publication Date: 2017-09-29
PERA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to provide an upper connection device for an ocean drilling riser to solve the problem of high manufacturing and installation costs in the prior art

Method used

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  • Upper part connecting device of ocean drilling vertical pipe
  • Upper part connecting device of ocean drilling vertical pipe
  • Upper part connecting device of ocean drilling vertical pipe

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Embodiment Construction

[0023] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below in conjunction with examples.

[0024] In order to enable those skilled in the art to better understand the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only a part of the present invention, rather than Full examples. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0025] Deep sea oil extraction technology is China's weakness, and as a country with a large energy demand, China has huge demand and prospects for future offshore oil extraction.

[0026] ...

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Abstract

The invention provides an upper part connecting device of an ocean drilling vertical pipe, which comprises an oblique front bracket and a vertical back bracket; both sides of the front bracket are fixedly connected with the back bracket through a side bracket; the upper end of the back bracket is equipped with a mother container joint unit; a continuous oil pipe supporting structure is installed on the back bracket; one side of the front bracket far from the back bracket is equipped with an underwater connector joint unit and a hanging platform from bottom to top. In the technical scheme, the front bracket and the back bracket are connected and formed to be a trapezoid structure layout; layout of a cubic framework structure in the prior art is abandoned; through the analysis and simulation verification of finite elements, design requirements such as intensity and fatigue under various working conditions can be comprehensively satisfied; therefore, weight of the overall structure is greatly lightened; for the structure is simplified, the production, transportation, installation and the later maintenance are greatly simplified; therefore, the manufacturing and installing transportation costs are greatly saved.

Description

technical field [0001] The invention relates to the technical field of ocean drilling, in particular to an upper connection device for an ocean drilling riser. Background technique [0002] In deep sea oil projects, the riser and the connection between the riser and the FPSO tanker are very important. Among them, the upper connection assembly of the marine riser is a key component. [0003] The design of the upper connection components of the marine riser involves the dynamic load of the suspension tube, the dynamic load of the riser, the dynamic load of the tanker, and the dynamic load transmitted by various connecting pipelines, so it is extremely complicated. The size of the upper connection components of the marine riser is generally as high as more than ten meters, and the design weight is usually more than one hundred tons. In addition, depending on the purpose of the riser, the design of the upper connection components of each marine riser has certain differences. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B19/00
CPCE21B19/004
Inventor 朱刚
Owner PERA
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