Underwater standpipe inhibition device

A technology for suppressing devices and risers, applied in drill pipes, casings, drilling equipment, etc., can solve problems affecting oil and gas production, fatigue damage, engineering and environmental accidents, etc., and achieve simple structure, improved fatigue life, and low cost. Effect

Inactive Publication Date: 2019-04-30
黄玉春
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The marine environment is harsh, and the riser will inevitably produce vortex-induced vibration. Under the action of continuous vortex-induced vibration, the riser may eventually suffer fatigue damage, which will affect oil and gas production, and even cause serious engineering and environmental accidents

Method used

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  • Underwater standpipe inhibition device

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Embodiment Construction

[0009] The present invention will be further described below in conjunction with accompanying drawing.

[0010] see figure 1 , the underwater standpipe suppressing device of the present invention comprises a standpipe body 1, the top and bottom of the standpipe body 1 are provided with rubber sleeves 3, the side of the standpipe body 1 is provided with deflectors 2, and the deflectors 2 have arrays , every two groups are symmetrically arranged, and the adjacent two groups are arranged alternately, the length of the rubber sleeve 3 is one-tenth of the length of the riser body 1, and the rubber sleeve 3 and the deflector 2 are connected with the riser body 1 Bonded by high-strength waterproof glue.

[0011] The riser body 1 is provided with a rubber sleeve 3 and a deflector 2, which can realize omnidirectional turbulence, and can effectively reduce the amplitude of the vortex-induced vibration of the standpipe; the invention has simple structure, low cost, and easy installation...

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PUM

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Abstract

The invention discloses an underwater standpipe inhibition device which comprises a standpipe body, wherein rubber sleeves are arranged at the top and the bottom of the standpipe body; a plurality ofgroups flow guide plates are arranged on the side face of the standpipe body; every two groups of the flow guide plates are arranged symmetrically; and the two adjacent groups of the flow guide platesare arranged in a staggered manner. The device is simple in structure, lower in cost and simple to mount, and can achieve omnidirectional turbulence, effectively reduce a vortex-induced vibration amplitude of a standpipe and prolong a fatigue life of the standpipe.

Description

technical field [0001] The invention relates to a suppression device, in particular to an underwater riser suppression device. Background technique [0002] With the increasing shortage of land oil supply, the development and exploitation of deep sea oil and gas has become an important way to solve the current energy crisis. As a key connection between the subsea production system and the floating device, the marine riser system provides a channel for the lifting of oil and gas, and its safe service is the fundamental guarantee for deep-sea oil and gas exploitation. The marine environment is harsh, and the riser will inevitably produce vortex-induced vibration. Under the continuous vortex-induced vibration, the riser may eventually suffer fatigue damage, which will affect oil and gas extraction, and even cause serious engineering and environmental accidents. Contents of the invention [0003] The object of the present invention is to provide an underwater riser suppressio...

Claims

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Application Information

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IPC IPC(8): E21B17/01F15D1/00
CPCE21B17/01F15D1/0025
Inventor 黄玉春
Owner 黄玉春
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