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Leaking stoppage synergist and preparation method and use method thereof

A technology of synergist and plugging slurry, which is applied in chemical instruments and methods, earthwork drilling, wellbore/well components, etc. Application prospect, good compatibility effect

Inactive Publication Date: 2017-07-07
CNPC XIBU DRILLING ENG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a plugging synergist and its preparation method and use method, which overcomes the above-mentioned deficiencies in the prior art, and can effectively solve the problem of poor plugging performance of existing domestic leak plugging agents

Method used

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  • Leaking stoppage synergist and preparation method and use method thereof

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Effect test

Embodiment 1

[0015] Embodiment 1: the plugging synergist, including raw materials including 80 mesh to 120 mesh plant fiber 20 to 30 parts, 120 mesh to 150 mesh plant fiber 25 to 50 parts and 150 mesh to 200 mesh plant fiber in parts by weight 50 to 70 parts of plant fibers, the plugging synergist is obtained as follows: mix the required amount of plant fibers from 80 mesh to 120 mesh, 120 mesh to 150 mesh plant fibers and 150 mesh to 200 mesh plant fibers After uniformity, a plugging synergist is obtained.

Embodiment 2

[0016] Embodiment 2: the plugging synergist, including raw materials in parts by weight including 20 parts or 30 parts of plant fibers from 80 mesh to 120 mesh, 25 parts or 50 parts of plant fibers from 120 mesh to 150 mesh and 150 mesh to 200 mesh 50 parts or 70 parts of plant fibers, the plugging synergist is obtained as follows: the required amount of 80 mesh to 120 mesh plant fibers, 120 mesh to 150 mesh plant fibers and 150 mesh to 200 mesh plant fibers are mixed After uniformity, a plugging synergist is obtained.

Embodiment 3

[0017] Embodiment 3: the plugging synergist, including raw materials including 80 mesh to 120 mesh plant fiber 30 parts, 120 mesh to 150 mesh plant fiber 25 parts and 150 mesh to 200 mesh plant fiber 70 parts by weight, so The plugging synergist is obtained as follows: the required amount of plant fibers of 80 mesh to 120 mesh, 120 mesh to 150 mesh and plant fibers of 150 mesh to 200 mesh are uniformly mixed to obtain the plugging synergist.

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Abstract

The invention relates to the technical field of drilling plugging agents and discloses a leaking stoppage synergist and a preparation method and a use method of the leaking stoppage synergist. The leaking stoppage synergist comprises the following raw materials by weight: 20-30 parts of 80-120 mesh plant fiber, 25-50 parts of 120-150 mesh plant fiber, and 50-70 parts of 150-200 mesh plant fiber. The leaking stoppage performance of the leaking stoppage synergist is better than that of the domestic common leaking plugging agent, the compatibility with a drilling fluid is good, the leaking stoppage synergist is suitable for various drilling fluid systems, the sliding drilling is not affected, the signal transmission of an instrument is not interfered, the technical support is provided for improving the complex processing efficiency of leakage, the effective technique support is provided for accelerating the complex formation drilling and the oil and gas development, meanwhile, the leaking stoppage synergist is wide in source of the materials, so that the leaking stoppage synergist has a broader application prospect.

Description

technical field [0001] The invention relates to the technical field of drilling plugging agents, and relates to a plugging synergist and its preparation method and use method. Background technique [0002] Lost circulation is a common complex situation in drilling engineering. According to different types of lost circulation, various types of lost circulation materials have been developed, making the lost circulation materials the main means to solve lost circulation. In directional wells, horizontal wells, and high-temperature, high-density wells, the use of these plugging materials usually has serious disadvantages, and often cannot meet the working environment requirements of downhole tools and instruments, or the plugging materials have insufficient temperature and pressure resistance. , and even cause drastic changes in the performance of the drilling fluid, and there are many inconveniences in use. Moreover, when lost circulation occurs in directional wells and horizon...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K8/03C09K8/42C09K8/467E21B33/138
CPCC09K8/426C09K8/03C09K8/467C09K2208/08E21B33/138
Inventor 屈刚代瑜张志刚
Owner CNPC XIBU DRILLING ENG
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