摘要
依据基础地质和室内样品测试分析资料 ,应用储层沉积学、石油地质学、煤田地质学及天然气地质学的理论和方法 ,对洛阳地区上古生界煤系地层的生、储、盖等含油气地质特征进行了综合评价。认为洛阳地区上古生界煤气地层中的煤及暗色泥岩有机质丰度高 ,处于成熟—过成熟阶段 ,为主要的生气岩 ;煤系地层中的砂岩较发育 ,对煤成气有一定储集能力 ,区域盖层以石千峰组上部泥质岩及七煤段泥质岩为主 ,煤成气总资源量为 739.32× 10 8～4 32 .4 1× 10 8m3 ,具有一定的勘探前景。
Based on the information of basic geology and the analysis of sample test in the lab, some theories and methods about reservoir sedimentology, petroleum geology, coalfield geology and nature gas geology were applied to evaluate the geographic features of the formation, storage and casing of coalbed gas in ancient paleozoic erathem at Luoyang District. Conclusion was reached that the coal and the dark pelite of coal measure stratum in ancient paleozoic erathem at Luoyang District contained abundant organic substance, which was between maturity and over maturity and was chief gas yielding rock. The sandstone in coal measure stratum was quite rich, which could accumulate some coalbed gas. The pelite at the top of Shiqianfeng Group and Qimeiduan was typical of district casing. The overall resource of coalbed gas at this district was 739.32×108m 3-432.41×108m 3, which had quite a bright future for prospecting.
