摘要
基于鸡西盆地500余口钻井资料、58个瓦斯解吸资料、多年矿井瓦斯涌出量、瓦斯突出事故资料和大量样品测试资料,通过对盆地煤层煤化程度、埋藏深度、围岩封盖条件及地质构造分析,得出鸡西盆地内煤层埋藏较深、煤化程度高、生气量较大,节理不发育、围岩封闭条件较好、煤层含气量大,一级构造单元中的隆起部位不利于煤层气富集,坳陷部位有利于煤层气富集,若坳陷内次级背斜核部缺失穆棱组上部地层含气量小,反之则变大,逆冲断裂带及其附近遭受挤压揉皱的构造煤有利于煤层气赋存。
According to the records of 500 drilling wells in Jixi basin, gas analysis on 58 drilling wells, several years of mine gas-gushing quantity, outburst events, a lot of records of specimen抯 test, and analysis of the metamorphic grade, imbedding depth of coal bed, capping conditions of wall rock, and geologic structure, we conclude that imbedding depth of coal seam is deep, metamorphic grade is high, yield of coal gas is large, joint is undevelop, capping ability of wall rock is good, coal gas content is large, first grade structure unit抯 heave isn抰 beneficial to the reservation of coal gas, depression is beneficial to the reservation of coal gas, secondary anticlines core抯 reservation of coal gas changed vastly because of the development of Muling team抯 top strata, tectonics coal of the extrusion zone appendage is beneficial to the reservation of coal gas.
出处
《辽宁工程技术大学学报（自然科学版）》
CAS
北大核心
2003年第1期44-46,共3页
Journal of Liaoning Technical University (Natural Science)
