TSR对碳酸盐岩中沥青生烃影响的模拟实验  

Simulation Experiment of TSR Effects on Hydrocarbon Generation of Bitumen in Carbonate Rocks

作　　者：罗厚勇[1,2,3] 刘文汇[2] 王万春[1] 腾格尔[2] 苏龙[1] 吴远东[1,3] 韩元红[1,2,3] 曹涛涛 Liu Wenhui;Luo Houyong;Wang Wanchun;Teng Geer;Su Long;Wu Yuandong;Han Yuanhong;CaoTaotao

机构地区：[1]中国科学院油气资源研究重点实验室 [2]中国石化石油勘探开发研究院无锡石油地质研究所 [3]中国科学院大学

出　　处：《海相油气地质》2016年第3期29-38,共10页Marine Origin Petroleum Geology

基　　金：国家重点基础研究发展计划(973计划)项目“早古生代海相层系烃源特征与成藏过程示踪”(编号:2012CB214801)资助

摘　　要：利用地层孔隙热压生排烃模拟仪实验装置,对采自四川盆地西北部广元矿山梁地区下寒武统具高有机质含量、高氢指数和低成熟度特征的固体沥青,开展了模拟地层条件下的"沥青+白云岩+去离子水"(系列A)和"沥青+白云岩+硫酸镁+去离子水"(系列B)生排烃实验。结果表明,这两个系列的气体产率具有较大差异,其中,加入硫酸镁的系列(系列B)发生了热化学硫酸盐还原反应(TSR),使气态烃和非烃气体的产率增大,同时也加速了重烃气体的裂解,导致重烃气体大量裂解的温度降低。The samples o f the Lower Cambrian solid bitumen w ith the characteristics o f high organic content, highhydrogen index, and low asphaltene m aturity were collected at Kuangshanliang in Guangyuan in the northwestpart o f Sichuan Basin. The form ation porosity therm o-com pression sim ulation experiment was used to launch thegeneration and expulsion sim ulation experiments o f "solid bitumen + dolostone + deionized w ater1' (Series A) ando f "solid bitumen + dolostone + magnesium sulfate + deionized w ater,J (Series B) under reservoir conditions. Theresults show that tw o series have quite different ratios o f gas yield. Between them, Series B occurrencesthermochemical sulfate reduction (TSR), w hich makes not only increasing the gaseous hydrocarbon and non hydrocarbongas yields but also accelerating the heavy hydrocarbon pyrolysis and reducing the temperature o fheavy hydrocarbon pyrolysis.

关 键 词：生烃 碳酸盐岩 历青 热裂解 TSR 模拟实-险 

分 类 号：TE135.2[石油与天然气工程—油气勘探]