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A spiral flow foam drilling machinery defoamer

A defoamer and helical flow technology, which is used in earth-moving drilling, flushing wellbore, wellbore/well components, etc., to achieve the effect of large foam processing capacity, high defoaming efficiency, and meeting defoaming requirements.

Inactive Publication Date: 2017-10-31
JILIN UNIV
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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 helical flow foam drilling mechanical defoamer for solving many problems existing in the defoaming process during drilling

Method used

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  • A spiral flow foam drilling machinery defoamer
  • A spiral flow foam drilling machinery defoamer
  • A spiral flow foam drilling machinery defoamer

Examples

Experimental program
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Effect test

Embodiment Construction

[0018] see figure 1 , figure 2 and image 3 Shown:

[0019] The spiral flow foam drilling machinery defoamer provided by the present invention includes a foam receiving pipe 1, a spiral pipe 2, a gas distribution pipe 3, an outer pipe 4 and a diffuser pipe 5, wherein one end of the foam receiving pipe 1 is connected to one end of the spiral pipe 2 Connection, the foam receiving pipe 1 is connected with the spiral pipe 2, the other end of the spiral pipe 2 is connected with the diffuser pipe 5, the air distribution pipe 3 is set on the spiral pipe 2, and the outer wall of the spiral pipe 2 is provided with several spiral protrusions 6, and the spiral protrusions The riser 6 closely cooperates with the inner wall of the air distribution pipe 3 to form several spiral passages 7, and the outer pipe 4 is sleeved on the air distribution pipe 3.

[0020] One end of the air distribution pipe 3 is provided with an air inlet 8 , and the outer pipe 4 is connected with an air inlet pi...

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Abstract

The invention discloses a spiral flow type foam drilling machine foam breaker which comprises a foam receiving pipe, a spiral pipe, a gas distributing pipe, an outer pipe and a diffusing pipe. One end of the foam receiving pipe is connected with one end of the spiral pipe. The foam receiving pipe is communicated with the spiral pipe. The other end of the spiral pipe is connected with the diffusing pipe. The gas distributing pipe is arranged on the spiral pipe in a sleeving mode. A plurality of spiral protrusions are arranged on the outer wall of the spiral pipe. The spiral productions are closely matched with the inner wall of the gas distributing pipe to form a plurality of spiral channels. The outer pipe is arranged on the gas distributing pipe in a sleeving mode. A gas inlet is formed in one end of the gas distributing pipe. The outer pipe is communicated with a gas inlet pipe. The gas inlet pipe and the gas inlet can convey high-pressure gas into the gas distributing pipe. The foam breaker has the advantages that vacuum and shearing are utilized for breaking foam, foam breaking efficiency is high, the foam processing amount is large, and the foam-breaking requirement of a foam drilling site can be met.

Description

technical field [0001] The invention relates to a drilling machinery defoamer, in particular to a helical flow foam drilling machinery defoamer. Background technique [0002] At present, foam drilling technology is an important part of underbalanced drilling technology. It has the advantages of increasing mechanical penetration rate, reducing reservoir damage, and solving the problem of formation water drilling. It has significant technical advantages in the exploration and development of low-permeability and low-pressure formations, unconventional oil and gas resources, and old oil and gas fields, and is widely used. However, due to the stabilizer contained in the foam fluid, a large amount of foam will accumulate in the mud pool after returning from the bottom of the well, and it will not break for a long time. Increase. [0003] Although the use of chemical defoaming agents can achieve rapid defoaming and high defoaming rate, but its consumption is large, the cost is hi...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): E21B21/06E21B21/14
CPCE21B21/06E21B21/085E21B21/14
Inventor 陈宝义曹品鲁陈云望龙翔王如生刘安
Owner JILIN UNIV
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