Blowout wreaking equipment for driving well

An equipment and cone technology, applied in the field of steam flooding well blowout devices, can solve the problems of high temperature expansion, hydrogen sulfide aging, and difficult operation, and achieve the effects of eliminating constraints, ensuring construction safety, and reducing well control risks.

Inactive Publication Date: 2019-06-18
SHAANXI XINGCHEN PETROLEUM TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It overcomes the shortcomings of existing well control equipment such as high temperature expansion, hydrogen sulfide aging, and difficult operation

Method used

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  • Blowout wreaking equipment for driving well

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Effect test

Embodiment Construction

[0007] see figure 1 , a kind of spraying equipment for well flooding, which is composed of a cock valve 1, a tubing hanging cone 2 and a split flange 3; the cock valve 1 is connected with the tubing hanging cone 2 with threads, and the lower end of the tubing hanging cone 2 is connected to the tubing Threaded connection, the lower end of the oil pipe hanging cone 2 is cone-shaped, and the upper end is covered with a split flange 3, and the oil pipe hanging cone 2 is made of high temperature resistant and anti-aging metal materials.

[0008] After the present invention is connected with the oil pipe, it realizes the action of running continuously by directly lowering. Utilize the guidance and righting of the oil pipe hanging cone 2 to force the oil pipe to be automatically centered, and then complete the steel ring into the groove. Use the split flange 3 to rotate the flange surface at will, align the upper and lower screw holes, and quickly tighten the wellhead screw.

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Abstract

The invention relates to the technical field of steam drive well repair work and well control protection, in particular to blowout wreaking equipment for driving a well. The blowout wreaking equipmentfor driving the well is composed of a plug valve, an oil pipe hanger cone and a split type flange; and the plug valve is in screw connection with the oil pipe hanger cone, the lower end of the oil pipe hanger cone is in screw connection with an oil pipe, the lower end of the oil pipe hanger cone is in a cone shape, and the split type flange sleeves the upper end of the oil pipe hanger cone. The blowout wreaking equipment for driving the well realizes high-temperature resistant and aging resistant metal sealing, driving centering of the oil pipe, automatic in-groove of a steel coil and free hole facing of screws are achieved, and rapid and long-acting well sealing can be achieved. The defects of high-temperature expansion, sulfuretted hydrogen aging and big operation difficulty existing inexisting well control equipment are overcome.

Description

technical field [0001] The invention belongs to the technical field of auxiliary equipment for oil exploitation, and relates to a blowout device for steam flooding wells. Background technique [0002] With the promotion and implementation of steam flooding projects, the existing well control equipment is difficult to meet the high temperature, high pressure and high sulfur well control needs of construction wells of steam flooding projects. Most of the well control equipment currently used is a blowout preventer with rubber seal components. The rubber parts will expand and deform when the temperature exceeds 200 ° C. If they are exposed to hydrogen sulfide for a long time, they will age. The well cannot be closed for a long time under high pressure. At the same time, there are synchronous well shut-ins High difficulty, long shut-in time and other defects. There is an urgent need to develop steam flooding supporting blowout prevention facilities to improve the prevention and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B33/06E21B43/24
Inventor 程世英
Owner SHAANXI XINGCHEN PETROLEUM TECH
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