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湖北省石油学会、中国地质学会石油地质专业委员会联合召开的中国南方天然沥青与油气研讨会,于1987年11月17日至19日在武汉召开。参加研讨会的有地质矿产部、石油工业部、煤炭工业部及院校共22个单位的46名代表。会议收到论文19篇。 我国已在南方9个省区内发现了80处以上的沥青脉。根据多年的研究,与会者对天然沥青的分类、形成机制、与油气的关系等阐述了各自的看法。提出两个有代表性的分类方案,其一,根据天然沥青产出的地质特征,划分为原生—同层沥青、后生—储层沥青(又分A,B两亚类)、岩浆热变质沥青和浅层氧化沥青四类;其二,根据天然沥青原始有机质类型和演化变质程度,划分为未变质沥青类
Hubei Petroleum Institute, China Geological Society of Petroleum Geology Committee jointly held in southern China natural bitumen and oil and gas seminar, November 17, 1987 to November 19 held in Wuhan. Participants in the seminar included 46 representatives from 22 units in the Department of Geology and Mineral Resources, Ministry of Petroleum Industry, Ministry of Coal Industry and institutions. The conference received 19 papers. China has found more than 80 asphalt veins in nine southern provinces and autonomous regions. Based on years of research, attendees elaborated their own views on the classification of natural bitumen, its formation mechanism and its relationship to oil and gas. Two typical classification schemes are put forward. First, according to the geological characteristics of natural bitumen output, they are divided into primary-secondary strata, secondary-reservoir bitumen (subdivided into categories A and B), magmatic thermal-modified bitumen And shallow layer of four types of asphalt; Second, according to the natural type of original asphalt and evolution of the degree of metamorphism, divided into unmodified asphalt