Penetrant for coal-bed flooding

A coal seam water injection and penetrant technology, which is applied in the directions of dust prevention, fire prevention, mining equipment, etc., can solve problems such as poor effect, and achieve the effect of improving efficiency, increasing wetting radius, and reducing surface tension

Active Publication Date: 2012-02-01
SHANDONG UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, when applying such agents to control coal dust with a high degree of deterioration, the effect is often not good

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0012] Add 0.01g sodium dodecyl sulfonate, 0.1g dioctyl sodium sulfosuccinate, 0.1g lauryl betaine, 0.04g sodium oleamide ethanesulfonate and 0.4g chloride to 99.35g water Calcium, stirred at room temperature for 30 minutes to obtain the penetrant for coal seam water injection.

Embodiment 2

[0014] Add 0.1g sodium dodecyl sulfonate, 0.01g dioctyl sodium sulfosuccinate, 0.01g lauryl betaine, 0.1g sodium oleamide ethanesulfonate and 1.0g chloride to 98.87g water Calcium, stirring at room temperature for 50 minutes, that is, the penetrant for coal seam water injection.

Embodiment 3

[0016] Add 0.03g sodium dodecyl sulfonate, 0.02g dioctyl sodium sulfosuccinate, 0.03g lauryl betaine, 0.01g sodium oleamide ethanesulfonate and 0.5g chloride to 99.41g water Calcium, stirred at room temperature for 30 minutes to obtain the penetrant for coal seam water injection.

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PUM

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Abstract

The invention relates to a penetrant for coal-bed flooding. The penetrant comprises the following components by weigh percent: 0.01%-0.10% of sodium dodecyl sulfate, 0.01%-0.10% of sodium diisooctylester sulfosuccinate, 0.01%-0.10% of dodecylbetaine, 0.01%-0.10% of sodium oleoyl methyl ethanesulfonate, 0.1%-1.0% of calcium chloride and the balance of water. By using the penetrant for coal-bed flooding in the invention, the problems that a coal bed is not easily wetted and penetrated by water can be effectively solved, the efficiency of coal-bed flooding is improved, the flooding amount, wetting radius and flooding speed of the coal bed are greatly improved, the production amount of working face coal dust is effectively reduced, accident potential is eliminated, and coal mining efficiency is improved.

Description

technical field [0001] The invention relates to a chemical additive for coal seam water injection, in particular to a penetrant for coal seam water injection. Background technique [0002] Coal seam water injection is an important technical means to prevent and control various disasters in coal mines. Through coal seam water injection, it can effectively reduce the dust production when coal is broken, prevent the impact of rock pressure, coal and gas outburst disasters, and increase the thermal conductivity of coal Coefficient, reduce coal body temperature, prevent spontaneous combustion of coal seam. In addition, water injection into the coal seam can soften the hard coal body, speed up recovery, and improve coal production and efficiency. When water is injected into the coal seam, the first is the infiltration process of water along the cracks and large pores of the coal body under the action of pressure, and then the self-movement of water under the physical and chemical...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09K3/22E21F5/06
Inventor 程卫民聂文周刚陈连军亓玉栋吴立荣杨俊磊崔向飞张孝强马有营
Owner SHANDONG UNIV OF SCI & TECH
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