阜阳探区石炭系-二叠系烃源岩生烃特点分析  

The Hydrocarbon Genetic Characteristics of Carboniferous-Permian Source Rocks in Fuyang Area

作　　者：张健伟[1] 

机构地区：[1]中石化江苏油田分公司勘探开发研究院,江苏扬州225009

出　　处：《长江大学学报（自科版）（中旬）》2016年第12期18-23,共6页Journal of Yangtze University(Nature Science Edition)

基　　金：中国石油化工股份有限公司油田事业部基金项目(G5800-14-ZS-YTB011)产出论文

摘　　要：为了明确阜阳探区石炭系-二叠系烃源岩生烃潜力，以石炭系-二叠系泥岩和煤岩生烃模拟试验数据为基础，明确烃源岩热演化过程中各个阶段的生烃量和生烃演化特点，估算其资源量。结果表明：泥岩镜质体反射率（Ro）在1．0％～1．3％之间为生油高峰阶段，Ro大于2．0％为大量生气阶段；煤岩Ro在1．0％～1．3％之间为生油高峰阶段，Ro大于0．7％进入规模生气阶段，随着R。增高，生气量逐渐增大。由于该区每个凹陷石炭系-二叠系烃源岩热演化程度不同，其生烃类型存在差异；颜集凹陷以生成天然气为主，倪丘集凹陷既可以生油又可以生气，古城低凸起以生油为主。资源量估算证实天然气资源潜力区在颜集凹陷和倪丘集凹陷，油资源潜力区在倪丘集凹陷和古城低凸起。In order to clarify the Carboniferous-Permian hydrocarbon generating potential of source rocks in Fuyang Exploration Area,based on the data of hydrocarbon generation simulation experiment,the quantity of hydrocarbon generation and the characteristics of hydrocarbon generation at different stages in the thermal evolution of hydrocarbon source rocks were clarified,the amount of resources was estimated.Study indicated that mudstone vitrinite reflectance values between 1%~1.3% was the peak stage of oil generation,the vitrinite reflectance value larger than 2% was a higher stage of natural gas generation,coal vitrinite reflectance value between 1%~1.3% was he peak stage of oil generation,the vitrinite reflectance value greater than 0.7% was to enter the period of natural gas generation,with the increase of the vitrinite reflectance,natural gas production increases gradually.Because in each sag of Carboniferous-Permian,the thermal evolution degree was different,the hydrocarbon generation type was different,natural gas was mainly generated in Yanji Sag,both oil and gas were generated in Niqiuji Sag,oil was mainly generated in Gucheng Bulge.Estimation of resources demonstrate that natural gas resource potential areas are in Niqiuji Sag and Yanji Sag,oil resource potential area is in Niqiuji Sag and Gucheng Bulge.

关 键 词：阜阳探区 烃源岩 生烃模拟试验 生烃演化史 资源量 

分 类 号：TE122.1[石油与天然气工程—油气勘探]