东营凹陷纯西辉长岩对烃源岩异常生排烃作用研究  

STUDY ON EXCEPTIONAL HYDROCARBONS GENERATING AND ELIMINATING OF GABBROS TO SOURCE ROCKS IN CHUNXI AREA OF DONGYING DEPRESSION

作　　者：万从礼[1] 金强[1] 

机构地区：[1]石油大学地球资源与信息学院,山东东营257061

出　　处：《西安工程学院学报》2003年第1期20-25,共6页Journal of Xi'an Engineering University

基　　金：石油行业中青年创新基金(EX-99-09);石油大学211基金联合资助

摘　　要：　基性岩浆带来大量的热量和地幔物质,并产生极高的压力,加速了周围烃源岩的成熟演化,且促使其排烃,形成放射状排烃格局;辉长岩中的过渡金属由于有机酸的活化、迁移,并最终在周围烃源岩中沉淀、聚集,它们对烃源岩生烃起到显著的催化作用,使其早熟;火山热液中以及辉长岩蚀变产生的CH4和H2对烃源岩生烃起到加氢作用,显著扩大了其生烃量和提高了区域油气丰度。Gabbros brought a lot of hot and materials from mantle, and generated very high pressure, speeding up source rocks mature, and making hydrocarbons eliminate. Transition metals from the gabbros had catalysis on the source rocks,leading to its early mature H2, CH4 in hydrothermal fluid and formed due to alteration gabbros produce hydrogenation on the source rocks, enlarging its hydrocarbons generating.

关 键 词：辉长岩 烃源岩 加氢作用 生排烃作用 

分 类 号：P618.13[天文地球—矿床学]