Geochemistry and geological significance of the Upper Paleozoic and Mesozoic source rocks in the Lower Yangtze region

作     者：HUANG Yanran ZHANG Zhihuan WU Liyuan ZANG Chunjuan LI Qiong HUANG Yanran;ZHANG Zhihuan;WU Liyuan;ZANG Chunjuan;LI Qiong

作者机构：State Key Laboratory of Petroleum Resource and ProspectingChina University of PetroleumBeijing 102249China Hunan Provmce Key Laboratory of Coal Resources Clean-utilization and Mine Environment ProtectionHunan University of Science and TechnologyXiangtan 411201China Sinopec East China CompanyNanjing 210011China 

出 版 物：《Chinese Journal Of Geochemistry》 (中国地球化学学报)

年 卷 期：2012年第31卷第3期

页      面：315-322页

核心收录：

学科分类：081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 

主　　题：长江中下游地区 烃源岩 地球化学特征 地质意义 上古生界 中生界 有机质丰度 天然气生产 

摘      要：The Lower Yangtze region is one of the important marine sedimentation areas of oil and gas distribution in southern China,for its favorable source rocks,reservoirs and ***,the intense tectonic movements and complex hydrocarbon generation process made it highly impossible to form large-sized oil and gas *** it was divided to different hydrocarbon-bearing preservation units in oil-gas *** study shows that the Permian and Lower Triassic source rocks in the Lower Yangtze region are complicated in *** hydrocarbon generation potential of limestone there is low while argillaceous source rocks are overall of high abundance with excellent organic types,now in the process of hydrocarbon generation,so differences in high maturity influence the evaluation of organic matter abundance and *** characteristics indicate a reductive environment.n-alkanes are marked by a single peak,with no odd-even *** composition and distribution of the carbon numbers of n-alkanes,and the high abundance of long-chain tricyclic terpanes are indicative of marine *** high contents of pregnane,homopregnane,rearranged hopane suggest that the source rocks are of high *** is a good linear correlation between methylphenanthrene index and vitrinite *** correlation of oil-source rocks indicated that the oil of Well HT-3 may come from the Permian Longtan Formation in the Huangqiao area,the oil of Wells Rong-2 and Juping-1 came from the Lower Triassic Qinglong Formation in the Jurong *** exploration here is promising in those different source rocks which all have great potential in hy-drocarbon generating,and oil and gas were produced in the late stage of hydrocarbon generation.