Research the gas deposit law based on delineation gas-geological unit——take B₂seam in Xuehu coal mine as an example

Abstract：Through the statistical analysis of the Xuehu mine geological exploration during the gas information, magmatic rocks invasive is found as major geological factors, which impact of coal mine gas Xuehu occurrence.Magmatic intrusion makes the poor coal degenerate into anthracite coal and natural coke.Anthracite and natural coke is easy of gas migration.Magmatic rocks pushing a certain width of the structure coal belt separates the lateral seam gas flows, formed a three independent gas geological unit.Coal seam gas outcrop become outward dispersion along the main thoroughfare.By using multivariate linear regression, gas content in the various geological units is predicted.

Keyword：gas source;magmatic;gas geological unit;multivariate linear regression;