古地理学报Issue(6)：769-789,21.DOI:10.7605/gdlxb.2014.06.062
含油气盆地深部高过成熟烃源岩古 TOC 恢复方法及其应用
Recovery method of original TOC and its application in source rocks at high mature-over mature stage in deep petroliferous basins
摘要
Abstract
According to the change of residual hydrocarbon generation materials in the evolution process of source rocks,the geological conceptual model about the TOC recovery was restored,so it pro-posed a quantitative pattern between TOC evolution and the main controlling factors.Then through giving a certain value for each factor that calculated the TOC recovery coefficient,the TOC evolution charts for muddy source rocks and carbonate source rocks in the case of different kerogen types were made.The main characteristic of this method was able to avoid the deviation that subjective factors and physical simulation experiment conditions might lead to.The results were as follows:With the increasing of thermal evolution level,the residual TOC in source rocks reduced gradually in large hydrocarbon expulsion stages (RO =0.5%~2.0%);the reduction amount was biggest for source rocks in high mature-over mature stage (RO>1.2%);the recovery coefficient gradually increased with the increasing of RO .The TOC recovery coeffi-cients can respectively reached to 3.0,2.0,and 1.4 for muddy source rocks in case of kerogen types Ⅰ,Ⅱ,and Ⅲ;for carbonate source rocks,the TOC recovery coefficients were respectively 3.2,2.2,and 1.5.The practical applications of TOC recovery were exemplified in field.关键词
含油气盆地深部/高过成熟烃源岩/TOC 恢复/烃源岩有效性判别/烃源岩有效性评价Key words
deep petroliferous basin/high mature -over mature source rock/recovery of TOC/discriminant standard of effective source rock/evaluation of effective source rock分类
能源科技引用本文复制引用
庞雄奇,李倩文,陈践发,黎茂稳,庞宏..含油气盆地深部高过成熟烃源岩古 TOC 恢复方法及其应用[J].古地理学报,2014,(6):769-789,21.基金项目
国家“973”项目（编号2011CB201100）和国家自然科学基金重点项目（编号U 1362205）联合资助 （）
