摘要
本文采用多种有机地球化学分析方法,讨论了岔路河凹陷下第三系暗色泥岩中陆源有机质的丰度、类型、性质及热演化特征,并初步探讨了其生油气性。研究表明,2700～2800m以下相对富含壳质组的暗色泥岩为良好的生油气岩,揭示出本区具良好的油气勘探前景。
Adopting various geochemical analysis techniques including extract data, saturated hydrocarbon chromatography, kerogen microscopic observation, vitrinite reflectance, elemental analysis, infrared spectroscopy and stable carbon isotope assay,as well as Rock-Eval pyrolysis chromatography and py- rolysis-gas chromatography analyses,etc.,the authors discuss the geochemical characteristics of the ter- rigenous organic matter in the dark mudstones of Lower Tertiary in Chaluhe Depression and tentatively inquire into the probability of generating oil and gas from it. The result shows that the Lower Tertiary exinite-richer dark mudstones below 2700-2800m are the good source rocks in Chaluhe Depression. It is prospective to explore high-wax oil,light oil,condensate and natural gas in this region.
出处
《天然气工业》
EI
CAS
CSCD
北大核心
1991年第5期13-20,共8页
Natural Gas Industry
关键词
石油
天然气
地球化学勘探
Songliao Basin
Yilan-Yitong Graben
Chaluhe Depression
Lower Tertiary
terrigenous organic matter
petroleum
natural gas
geochemical characteristic
