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Environment-friendly flushing fluid system for geological drilling and preparation method of environment-friendly flushing fluid system

A geological drilling, environmental protection technology, applied in the direction of chemical instruments and methods, drilling composition, etc., can solve the problem of not meeting the need to maintain the stability of the hole wall, it is difficult to obtain the accurate formula of environmental protection flushing fluid, and the cost of additive materials is large, etc. problems, to achieve the effect of facilitating large-scale production, good market promotion and application value, and improving the quality of mud cake

Inactive Publication Date: 2021-05-28
青海煤炭地质一0五勘探队
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Environmentally-friendly flushing fluids based on synthetic bases, water-based, methylglucose, etc. in the prior art cannot meet the needs of maintaining hole wall stability in the drilling of complex coal formations in plateau areas, and it is difficult to obtain accurate formulations of environmentally friendly flushing fluids , and the cost of additive materials is very high, so it is not suitable for use in relatively small-scale geological drilling work

Method used

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  • Environment-friendly flushing fluid system for geological drilling and preparation method of environment-friendly flushing fluid system
  • Environment-friendly flushing fluid system for geological drilling and preparation method of environment-friendly flushing fluid system
  • Environment-friendly flushing fluid system for geological drilling and preparation method of environment-friendly flushing fluid system

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Embodiment 1

[0029] An environment-friendly flushing fluid system for geological drilling, comprising 1% by mass of matrix, 0.1% of viscosifier, 0.1% of coating agent, 0.8% of fluid loss reducer, 0.1% of inhibitor, and the rest are composed of clear water; the substrate is selected from bentonite; the fluid loss reducer is a composite fluid loss reducer composed of modified starch, hydrolyzed ammonium salt, silicate, blocking agent, and graphite powder. The bentonite is sodium bentonite; the tackifier is carboxypropyl methylcellulose; the coating agent is a zwitterionic FA367 type coating agent; the inhibitor is potassium polyacrylate;

[0030] A preparation method of an environment-friendly flushing fluid system for geological drilling, the raw materials are selected according to the above mass percentage, and the preparation is carried out according to the following steps.

[0031] S1. Fill the on-site slurry mixing tank with clean water;

[0032] S2. Add the matrix in the clear water, ...

Embodiment 2

[0039] A geological drilling environment-friendly flushing fluid system, comprising a mass percentage of 2% matrix, 0.3% viscosifier, 0.15% coating agent, 0.9% fluid loss reducer, 0.15% inhibitor, and the rest consists of clear water; the substrate is selected from bentonite; the fluid loss reducer is a composite fluid loss reducer composed of modified starch, hydrolyzed ammonium salt, silicate, blocking agent, and graphite powder. The bentonite is sodium-based bentonite; the thickener is sodium carboxymethyl cellulose; the coating agent is an artificially synthesized FA141 type coating agent; and the inhibitor is potassium silicate.

[0040] A preparation method of an environment-friendly flushing fluid system for geological drilling, the raw materials are selected according to the above mass percentage, and the preparation is carried out according to the following steps.

[0041] S1. Fill the on-site slurry mixing tank with clean water;

[0042] S2. Add the matrix in the cl...

Embodiment 3

[0049] A method for preparing an environment-friendly flushing fluid system for geological drilling, comprising a matrix with a mass percentage of 4%, a viscosifier of 0.5%, a coating agent of 0.2%, a fluid loss reducer of 1%, and an inhibitor of 0.2%, The remaining composition is clear water; the base is selected from bentonite; the fluid loss reducer is a composite fluid loss reducer composed of modified starch, hydrolyzed ammonium salt, silicate, plugging agent and graphite powder. The bentonite is sodium bentonite; the thickener is carboxypropylmethylcellulose and sodium carboxymethylcellulose; the coating agent is zwitterionic FA367 type coating agent and artificially synthesized FA141 type coating Agent; The inhibitor is potassium polyacrylate and potassium silicate;

[0050] A preparation method of an environment-friendly flushing fluid system for geological drilling, the raw materials are selected according to the above mass percentage, and the preparation is carried o...

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Abstract

The invention discloses an environment-friendly flushing fluid system for geological drilling and a preparation method of the environment-friendly flushing fluid system. The environment-friendly flushing fluid system comprises the following components in percentage by mass: 1-4% of a matrix, 0.1-0.5% of a tackifier, 0.1-0.2% of a coating agent, 0.8-1% of a fluid loss agent, 0.1-0.2% of an inhibitor and the balance of clear water, the substrate is selected from bentonite; the fluid loss agent is a composite fluid loss agent; and the raw materials of the environment-friendly flushing fluid system are good in wall protection performance, wide in source, stable in performance, environment-friendly and non-toxic. The preparation method is simple, low in cost and convenient for large-scale production, and has better market popularization and application value.

Description

technical field [0001] The invention relates to the technical field of environment-friendly flushing fluid, in particular to an environment-friendly flushing fluid system for geological drilling and a preparation method thereof. Background technique [0002] Geological exploration, as the basic, pioneering and strategic work of national economic construction, has long occupied a pivotal position and has made indelible contributions to ensuring the sustained, rapid and coordinated development of the national economy. However, with the rapid development of my country's economy, soil pollution, water pollution, air pollution, biodiversity destruction and secondary geological disasters caused by large-scale and extensive mineral exploration and development activities are not uncommon. The relationship between environmental protection and resource protection contradictions are becoming increasingly prominent. [0003] Environmentally-friendly flushing fluids based on synthetic ba...

Claims

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Application Information

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IPC IPC(8): C09K8/514C09K8/467C09K8/42C09K8/88C09K8/90
CPCC09K8/426C09K8/467C09K8/514C09K8/882C09K8/905C09K2208/12
Inventor 鲍海山牛索安东主苏延鹤王伟超张文龙
Owner 青海煤炭地质一0五勘探队
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