Study on distribution regularities of high-quality source rocks in Chang-7 reservoirs of Wuqi-Zhidan region

By fully use of core data,well logging curve,total organic carbon content of source rocks,hydrocarbon source rock pyrolysis,hydrocarbon source rocks of vitrinite reflectance data,etc.,the study on distribution regularities of high-quality source rocks in Chang-7 reservoirs of WuqiZhidan region has been carried out.And the hydrocarbon generation potential has been evaluated. The evaluation standard of high-quality source rocks has been established and the distribution range of preferable source rocks has been made clear.The study results indicate the source rocks in Chang-7 reservoirs have high organic matter abundance and high hydrocarbon generation conversion rate.Therefore,it has a good hydrocarbon generation potential and the preferable source rocks are mainly distributed in Fanxue area in the southwest and Maying area in the south.