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Deepwater drilling riser

A deepwater drilling and riser technology, applied in drill pipes, drilling equipment, drill pipes, etc., can solve the problems of easily damaged buoyancy devices, unstable connections, complex structures, etc., to increase service life, improve use safety, and improve The effect of crashworthiness

Inactive Publication Date: 2019-09-17
重庆诺登液压机械制造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a deepwater drilling riser to solve the problems of the existing riser connection device with complex structure, unstable connection and easy damage to the buoyancy device

Method used

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Embodiment Construction

[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0019] see Figure 1-Figure 4 As shown, the present invention provides the following technical solutions: a deepwater drilling riser, comprising a first pipe body 1 and a second pipe body 4, the first pipe body 1 is provided with a connecting device 2, and the first pipe body 1 is connected by The device 2 is fixedly connected to the second pipe body 4, the connection device 2 includes a first joint 5 and a second joint 6, the first joint 5 is socketed on the ...

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Abstract

The invention belongs to the technical field of drilling risers, and discloses a deepwater drilling riser. The deepwater drilling riser comprises a first pipe body and a second pipe body, the first pipe body is provided with a connecting device, the connecting device comprises a first joint and a second joint, the first pipe body and the second pipe body are both provided with stress blocks, a groove ring block is mounted at the bottom of the first pipe body, the second pipe body is connected with the groove ring block in a clamping mode, the first joint is provided with a bolt, and the first joint is fixedly connected with the second joint through the bolt. According to the deepwater drilling riser, a drilling riser connecting structure is arranged, the structure is simple, the sealing performance is high, environments inside and outside the pipe body can be effectively isolated, thus the work state in the pipe body cannot be influenced, the fastness of the structure is high, stability and reliability are achieved, connection of the risers cannot loose, the using safety of the riser is improved, mounting of the connecting structure is simple, and large amount of labor can be saved.

Description

technical field [0001] The invention belongs to the technical field of drilling water risers, and in particular relates to a deep water drilling water riser. Background technique [0002] The offshore drilling riser is an important equipment for offshore oil production. It is a liquid delivery pipeline from the offshore drilling platform (or drilling ship) to the submarine blowout preventer device. The main function of the offshore drilling riser is to isolate the external seawater, to circulate the drilling fluid, install the underwater BOP, and support various control pipelines (mainly including choke and kill pipelines, drilling fluid replenishment pipelines, hydraulic transmission pipelines, etc.) etc., and play the role of guiding drill pipes and drilling tools from the drill floor to the subsea wellhead. Among them, the drilling riser joint, as the connecting device between each riser, plays an important role. [0003] However, the existing riser used in the connectio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B17/01E21B17/08
CPCE21B17/012E21B17/085
Inventor 陈文祥
Owner 重庆诺登液压机械制造有限公司
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