煤田地质与勘探2012，Vol.40Issue(3)：32-35,4.DOI:10.3969/j.issn.1001-1986.2012.03.008
等变质煤系烃源岩的生气特征
Characteristics of hydrocarbon generating source rocks in isometamorphic coal measure
摘要
Abstract
In order to study the characteristics of hydrocarbon generating source rocks in different coal measure more objectively, the semi-open system is adopted to carry out the pyrolysis experiment on coal, carbonaceous mudstone and mudstone samples collected from isometamorphic Jurassic coal measure source rocks in Kuqa depression, Tarim basin. The results showed that the gas generating capacity of the isometamorphic coal measure source rocks was good, but there were differences among them. The gas generating capacity of coal and carbonaceous mudstone was better than that of coal measure mudstone. With the increasing of thermal evolution degree, the overall yield (Cu) of the coal-measure source rocks increased correspondingly. In the high thermal evolution stage, methane was the main product.The value of carbon isotope pyrolytic gas component of coal measure source rocks was related to pyrolysis temperature. When the pyrolysis temperature increased, methane carbon isotope value reduced first and then increased, while ethane carbon isotope value kept rising. At the same temperature, the δ l3C1.value of pyrolytic gas was higher than the δ 13C2 value.关键词
煤系烃源岩/半开放体系/生气特征/库车坳陷Key words
coal measure source rocks/ semi-open system/ characteristics of hydrocarbon generation/ Kuqa depression分类
天文与地球科学引用本文复制引用
冯松宝,李贤庆,顿亚鹏,马小敏,黄孝波,王萌..等变质煤系烃源岩的生气特征[J].煤田地质与勘探,2012,40(3):32-35,4.基金项目
中央高校基本科研业务费专项(2010YM01) （2010YM01）
煤炭资源与安全开采国家重点实验室自主科研课题(SKLCRSM10B04) （SKLCRSM10B04）
国家油气科技重大专项课题(2008ZX05007-03,2011ZX05007-02) （2008ZX05007-03,2011ZX05007-02）
高等学校博士学科点专项科研基金项目(20110023110017) （20110023110017）
