加氢催化裂解技术用于高演化源岩有机质表征研究  

Study on the application of hydropyrolysis technique to the description of organic matter in highly mature source rocks

作　　者：孙永革[1] Will Meredith Colin E Snape 柴平霞[1] 

机构地区：[1]中国科学院广州地球化学研究所有机地球化学国家重点实验室,广东广州510640 [2]School of Chemical,Environmental and Mining Engineering(SCHEME),University of Nottingham,University Park,NG72RD,United Kindom

出　　处：《石油与天然气地质》2008年第2期276-282,共7页Oil & Gas Geology

基　　金：国家自然科学基金(40472060);国家重点基础研究发展规划(973)项目(2006CB202303)

摘　　要：加氢催化裂解技术作为近年来新发展起来的有机质大分子裂解技术,专门应用于大分子中共价键结合小分子的释放。本研究探索该技术应用于含油气沉积盆地高演化油气源岩原生有机质提取的可能性。以塔里木盆地下古生界油气源岩为例,选取了障壁泻湖相、欠补偿盆地相、闭塞欠补偿陆源海湾相、灰泥丘相等四类典型潜在源岩进行了加氢催化裂解实验,结果表明,加氢催化裂解产物中正构烷烃与甾烷的分布特征与上述源岩相完全吻合,证明加氢催化裂解实验可以有效地提取高演化油气源岩的原生有机质,为下一步实现该技术应用于油气源的对比奠定了基础。Hydropyrolysis is a newly-developed technique used to set free small molecular from macromolecular of organic matters by covalented-bond cracking, Our study has been focused on the possibility of employing the technique in extracting primary organic matters from highly mature hydrocarbon source rocks, The Lower Palaeo- zoic source rocks of four sedimentary facies in Tarim basin were selected to run the hydropyrolysis experiments, The results show that molecular compositions of hydropyrolysis products （ n-alkanes and steranes） from kerogens match well with that of the selected source rocks, proving that the technique works effectively in extraction of primary organic matters from highly mature hydrocarbon source rocks. The study paves the way for further application of the technique to oil-source correlation.

关 键 词：加氢催化裂解 高演化烃源岩 生物标志化合物 塔里木盆地 

分 类 号：TE135[石油与天然气工程—油气勘探]