METHOD OF DETERMINING GAS KINETIC CHARACTERISTICS OF COAL-BED

摘要

FIELD: mining.;SUBSTANCE: method of determining the gas-kinetic characteristics of coal-bed, comprising drilling wells and sampling of coal drilled out in sampling sealed cups and unsealed containers with their delivery to the laboratory to determine gas bearing capacity, true and apparent density, fractional and technical composition of coal. And in the method of drilling the transportation of coal to the wellhead is performed by its air-flushing, and the wellhead is equipped with screens separating coal flow with holes decreasing with distance from the wellhead. The separated coal sample falling out between the screens is placed in a sampling cup and sealed with a cover having a connection to the gas pipeline. And in the said sampling cup there are electronic pressure and temperature sensors for recording their reading in time, based on which the speed and energy of emitting gas is evaluated, and the metal balls for grinding sample on the vibrating table for the analysis of coal sample in the laboratory conditions.;EFFECT: providing increased reliability, accuracy and efficiency of determining the gas-kinetic of characteristics of the bed.;4 cl, 2 dwg