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Improved drilling fluid with high-strength wall protection effect and preparation method thereof, and equipment

A drilling fluid, an improved technology, applied in separation methods, chemical instruments and methods, drilling compositions, etc., can solve the problems of large water loss, poor economy, low viscosity, etc., to reduce water loss and stop leaks Good effect, high viscosity effect

Active Publication Date: 2021-03-12
河北省水利工程局集团有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, the water-based drilling fluid composition in this invention patent has the problems of too low viscosity and large water loss during use, and there are many types of materials, which are expensive and costly, and the process parameters and equipment accuracy are affected during mixing and preparation. The requirements are high, so the economy is poor

Method used

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  • Improved drilling fluid with high-strength wall protection effect and preparation method thereof, and equipment
  • Improved drilling fluid with high-strength wall protection effect and preparation method thereof, and equipment
  • Improved drilling fluid with high-strength wall protection effect and preparation method thereof, and equipment

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Embodiment

[0040] Example: as attached figure 1 , 2 As shown in , 3, 4 and 5, an improved drilling fluid with high-strength wall protection, its material composition includes: water, soda ash, bentonite, fluid loss reducer, suspension accelerator and plugging agent, each by weight The components are as follows: 900-1000 parts of water, 3-5 parts of soda ash, 35-40 parts of bentonite, 2-5 parts of fluid loss reducer, 3-6 parts of suspension accelerator, and 15-25 parts of plugging agent.

[0041] Specifically, the drilling fluid includes the following components by weight: 1000 parts of water, 5 parts of soda ash, 40 parts of bentonite, 3.5 parts of fluid loss reducer, 4 parts of suspension accelerator, and 20 parts of plugging agent.

[0042] The preparation method of drilling fluid comprises the following steps in sequence:

[0043] S1, add 1000kg of water in the stirred tank, then add 5kg of soda ash to obtain a solvent system with a pH of 8.5;

[0044] S2, add 40kg bentonite in the...

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Abstract

The invention belongs to the technical field of horizontal directional drilling, and particularly relates to improved drilling fluid with a high-strength wall protection effect and a preparation method thereof, and equipment. According to the invention, the drilling fluid is prepared by stirring and compounding water, sodium carbonate, bentonite, a fluid loss agent, a suspension accelerator and aplugging agent, and the drilling fluid is matched with a vibrating screen in the use process to achieve the effect of effectively using the drilling fluid. The drilling fluid has the advantages of being simple and effective in preparation method, high in viscosity, low in water loss, high in gelling strength, good in suspension and chip conveying capacity, good in leaking stoppage effect and capable of forming a high-quality filter cake to be used for leakage prevention and collapse prevention; the vibrating screen can effectively separate and remove large-particle drilling chips and effectively recycle small-particle drilling cuttings and a drilling fluid filtrate, so resources are saved; and the vibrating screen is good in structural stability and easy and convenient to use, adjust, replace, disassemble, assemble and maintain in daily life.

Description

technical field [0001] The invention belongs to the technical field of horizontal directional drilling, and in particular relates to an improved drilling fluid with high-strength wall protection function, a preparation method and equipment thereof. Background technique [0002] Drilling fluid, or drilling fluid, refers to the drilling protection fluid used to coat the hole wall and transport the soil cuttings after being injected into the tunnel during the horizontal directional drilling process, so as to improve the stability of the tunnel and reduce the dragging friction coefficient and the effect of reducing the slewing torque. But on the other hand, the current existing drilling fluids have the problems of poor targeted use and complicated manufacturing process. Therefore, there is an urgent need in the market for a drilling fluid that is convenient and efficient to manufacture and suitable for specific drilling environments. [0003] On the other hand, there is an urge...

Claims

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Application Information

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IPC IPC(8): C09K8/20C09K8/42B01D33/03B07B1/28B07B1/42B07B1/46
CPCC09K8/206C09K8/426B07B1/28B07B1/42B07B1/46B01D33/033Y02P20/141
Inventor 刘忠良董智杰胡宝文马建国闫婷婷张利锋曹永刚靳中磊范光明路层书焦秀丽邢彦波王建刘赞松刘旭尊田永飞田林红耿鑫鑫石媛媛赵瑞红
Owner 河北省水利工程局集团有限公司
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