古地理学报2017,Vol.19Issue(1):147-159,13.DOI:10.7605/gdlxb.2017.01.012
碎屑岩储集层中绿泥石包膜的研究现状
An overview on study of chlorite films in clastic reservoirs
摘要
Abstract
Chlorite films were common in clastic rock reservoirs,and their inhibiting overgrowth of quartz and influence on reservoir properties are research focus at home and abroad.Study history of chlorite films was reviewed and the current research results were summarized,including micro-morphological oc-currence,timing and mechanism of chlorite growth, controlling factors, their inhibiting overgrowth of quartz and influence on reservoir properties.Results show that:(1 ) Most of the discovered chlorite films are Fe-rich with “two layers structure” following Ostwald processes.The inner part adjacent to grain is fi-ner-crystalline chlorite which is mainly parallel to the grain surface,and the outer part near pore space is coarser-crystalline which is generally perpendicular to the grain surface.Fe-rich clay films,precursor min-erals of the inner part,will recrystallize in the eogenetic stage,and continue to precipitate based on the incipient chlorite films.(2) Ferromagnesian minerals,like volcanic materials (volcanic debris and ash) and dark minerals (biotite and amphibole),are the main sources of chlorite films,and their enrichment are closely related to hydrodynamic facies,such as the subaqueous distributary channel and mouth bar in the deltaic front.(3) The growth morphology of pore-lining chlorite films is affected by hydrocarbon injec-tion in diffident places.(4) Chlorite films help to protect the intergranular pore,but easily damage the pore-throat connectivity.Finally,existing problems and research trend on chlorite films were proposed.关键词
绿泥石包膜/石英次生加大/火山岩岩屑/成岩作用Key words
chlorite films/quartz overgrowth/debris of volcanic rock/diagenesis分类
天文与地球科学引用本文复制引用
马鹏杰,林承焰,张世奇,董春梅,魏孟吉..碎屑岩储集层中绿泥石包膜的研究现状[J].古地理学报,2017,19(1):147-159,13.基金项目
国家油气重大专项子课题(编号2011 ZX05006-004)和中央高校基本科研业务费专项资金项目(编号16CX06037A)联合资助。[Co-funded by the sub-project of National Significant Petroleum Special Projects of China (No.2011 ZX05006-004) and Fundamental Research Funds for the Central Universities (No.16CX06037A)] ()