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研究了秋明СГ—6号井6424～7502m段下三叠统—上二叠统(?)沉积—火山成因层有机质中不溶成分和沥青成分。该层存在少量生油气的暗色粉砂岩和薄泥板岩,从这些岩石提取的深成作用晚期第Ⅲ阶段的不溶有机质具有很强的包裹结构特征,但还远不如石墨。沥青质在随深度增加不断脂化的同时经受了破坏作用,破坏作用是缓慢进行的。所研究沉积—火山成因岩的含油远景不大。
The insoluble and bitumen components in the organic matter of Triassic-Upper Permian (?) Sedimentary-volcanic facies beneath the Qunming СГ-6 well, from 6424 to 7502m, were studied. There is a small amount of dark-colored siltstone and thin-bedded slate in this layer. The insoluble organic matter in the late stage of deep stage Ⅲ extracted from these rocks has a strong feature of parcel structure but far less than graphite. Asphaltenes are undergoing destructive action while increasing their depth with increasing fatification, and the destructive effect is slow. The studied sedimentary-volcanogenic rocks have little prospect of oil content.