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Well mouth anti-corrosion diverter

A diverter and diversion hole technology, which is applied in wellbore/well components, earthwork drilling, sealing/packing, etc., can solve the problems of difficult high-pressure oil and gas layered well operations, avoid well control imbalance, reduce The effect of affecting and reducing the probability of occurrence

Inactive Publication Date: 2018-03-09
邹跃明
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a wellhead anti-corrosion deflector, which solves the problems in the prior art that easily cause blowout and difficult to kill wells in high-pressure oil-gas formations when drilling into abnormally high-pressure oil-gas formations.

Method used

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  • Well mouth anti-corrosion diverter

Examples

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Embodiment 1

[0024] Such as Figure 1~3As shown, this embodiment includes a body 1, a support plate 9, a sphere 5 and an upper ball seat 13, and a liquid inlet 3 is opened inside the body 1, and the support plate 9 is fixed on the lower part of the liquid inlet 3, and the upper The ball seat 13 is fixed on the upper part of the liquid inlet hole 3 and its inside is connected with the liquid inlet hole 3. A support shaft 8 is arranged in the middle part of the support plate 9. The spring 7 is sleeved on the support shaft 8. There are a plurality of The small hole 10, the top of the spring 7 is provided with a limit plate 16, and there is a gap between the bottom of the limit plate 16 and the top of the support shaft 8, the upper end of the support shaft 8 is provided with an elastic cone point 18, and the bottom surface of the limit plate 16 is embedded with The rubber block 17 facing the conical point 18, the lower ball seat 6 is fixed on the limit plate 16, a spherical blowout prevention ...

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Abstract

The invention discloses a wellhead anti-corrosion deflector, which comprises a body, a support plate, a sphere and an upper ball seat, a liquid inlet hole is opened inside the body, the support plate is fixed at the lower part of the liquid inlet hole, and the upper ball seat is fixed at the liquid inlet The upper part of the hole and its interior are connected with the liquid inlet hole. A support shaft is set in the middle of the support plate. The spring is sleeved on the support shaft. There are multiple small holes on the support plate. There is a gap between the bottom and the top of the support shaft, the lower ball seat is fixed on the limit plate, and a through hole connected with the liquid inlet hole is opened in the middle of the sphere; connect. Through the adjustment of the connecting cross-section of the liquid inlet hole by the adjusting mechanism, the oil and gas flowing upwards are blocked, preventing wellhead overflow or expansion of well kick accidents caused by the upward movement of oil and gas flow, and avoiding the occurrence of well control disorders.

Description

technical field [0001] The invention relates to the field of natural gas exploitation, in particular to a wellhead anti-corrosion deflector. Background technique [0002] During the drilling operation of natural gas well production, formation fluid (oil, gas and water) inevitably enters the wellbore. Generally, the formation fluid entering the wellbore is pressed into the well by heavy mud through the kill manifold. When drilling into an oil and gas formation with abnormal high pressure, the oil flow in the high pressure oil and gas formation moves upwards under the pressure and drives the mud to the wellhead together. The upward movement of the oil flow causes drilling failure. Otherwise, the well control will be out of control. Usually, it is easy to cause a blowout accident, and the well killing operation of the high-pressure oil and gas layer is not easy to carry out, which disturbs the normal operation of drilling and production operations. Contents of the invention ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/06
CPCE21B33/06
Inventor 邹跃明
Owner 邹跃明
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