At present, the methane resources in seam has become one of the hot points in the developing field of natural gas prospecting.
目前，煤层甲烷资源已成为天然气勘探开发领域的热点之一。
2
The structural deformation is the principal geological factor that affects the thickness variation of coal seam on a mine field scale.
构造作用是控制井田范围内煤层厚度变化的主要地质因素。
3
Tectonic group patterns of coal seam depended on tectonic stress field, mechanical properties of rock of coal-bearing formation and surrounding environments.