沉积与特提斯地质Issue(4)：60-67,8.
深部细粒碎屑岩储层成岩作用研究--以苏北盆地张家垛油田阜三段为例
Diagenesis of the deep-seated fine-grained clastic reservoirs:An example from the 3rd member of the Funing Formation in the Zhangjiaduo Oil Field,Subei Basin
摘要
Abstract
Currently much attention is given to the fine-grained clastic reservoirs with the exploration and development of dense oil and shale gas. The diagenesis of the deep-seated fine-grained clastic reservoirs from the 3rd member of the Funing Formation in the Zhangjiaduo Oil Field is dealt with in this paper on the basis of cast section examination,X-ray diffraction analysis and SEM. The results of research are outlined as follows. (1)The intergranular pores can be well preserved when the disequilibrium compaction took place,and the fine-grained clastic reservoirs with relatively higher compositional maturity and textural maturity are commonly sealed by mudstones;(2 )Abundant micropores are caused by higher contents of matrix due to weakly hydrodynamic conditions during the deposition of the fine-grained clastic reservoirs;(3 )The occurrence of abundant clay minerals leads to the increase of specific surface of the pores and the decrease of the precipitation of siliceous and carbonate cements;(4)The increase of specific surface of the pores slows down the convective velocity and diffusive velocity of pore fluids,and may be unfavourable for the formation of the secondary pores. The study of the diagenesis of the fine-grained clastic reservoirs in this paper is of both theoretical and practical values.关键词
细粒储层/成岩作用/粘土矿物/阜三段/张家垛油田Key words
fine-grained clastic reservoirs/diagenesis/clay mineral/3rd member of the Funing Formation/Zhangjiaduo Oil Field分类
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韩玫梅,丁晓琪,张哨楠,陈倩倩..深部细粒碎屑岩储层成岩作用研究--以苏北盆地张家垛油田阜三段为例[J].沉积与特提斯地质,2015,(4):60-67,8.基金项目
国家自然科学基金项目，大气淡水在碎屑岩次生孔隙形成中的作用 （）
