Penetrant for coal-bed flooding

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...

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