石油实验地质2016，Vol.38Issue(2)：231-239,9.DOI:10.11781/sysydz201602231
渤南洼陷页岩生烃组分动力学分析及其对页岩油气勘探的意义
Kinetic analysis of hydrocarbon generation components in shales from the Bonan sub-Sag and its significance for hydrocarbon exploration
摘要
Abstract
The Paleogene shales in the East China contain Type I organic matter comprised mainly of planktonic algae. A kinetic analysis of the hydrocarbon generation of this source rock was made using a pyrolysis-gas chro⁃matograph. The hydrocarbon generation potential, composition and oil saturation of shales in the Bonan sub⁃Sag were studied in the context of the thermal history of the Shahejie Formation. The hydrocarbon conversion rates of light and heavy hydrocarbons in source rocks in the middle section of the third member of Shahejie Formation ( Es3 ) are 31.1% and 43.8%, respectively, indicating the oil generation period. The oil saturation index might reach 273.24 mg/g, showing some shale oil potential. However, the oil is too heavy for exploitation. The lower section of Es3( and the upper section of Es4 ) has a high oil saturation up to 571.17 mg/g and a high elastic force with coexisting oil and gas, and hence is an excellent target for shale oil exploitation. The middle and lower sec⁃tions of Es4 arrived at the peak of methane generation. Any residual oil would have been cracked. Shale gas should be the main exploration focus unless an overpressure system developed.关键词
生烃组分动力学/含油饱和度/页岩油气/烃源岩/沙河街组/渤南洼陷/沾化凹陷/渤海湾盆地Key words
kinetic analysis of hydrocarbon generation components/oil saturation/shale oil and gas/hydrocarbon source rock/Shahejie Formation/Bonan sub-Sag/Zhanhua Sag/Bohai Bay Basin分类
石油、天然气工程引用本文复制引用
蒋启贵,申宝剑,仰云峰,李志明,马媛媛,钱门辉..渤南洼陷页岩生烃组分动力学分析及其对页岩油气勘探的意义[J].石油实验地质,2016,38(2):231-239,9.基金项目
国家重点基础研究计划（973计划）项目（2014CB239101）资助。 （）
