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水介质的化学性质和流动方式对深部碎屑岩储层成岩作用的影响
引用本文:袁静,赵澄林.水介质的化学性质和流动方式对深部碎屑岩储层成岩作用的影响[J].中国石油大学学报(自然科学版),2000,24(1).
作者姓名:袁静  赵澄林
作者单位:1. 石油大学石油资源科学系,山东东营257062
2. 石油大学地球科学系,北京102200
摘    要:对东营凹陷下第三系深部碎屑岩储层成岩作用的影响因素进行了研究 ,结果表明 ,有机无机化学反应提供的酸性水介质环境和异常压力带流体的循环热对流是影响和控制深部碎屑岩储层成岩作用的重要因素。有机质热演化、粘土矿物转化、硫酸盐热化学氧化还原反应、油田水化学性质和烃类物质进入储层等因素引起地层水介质化学性质的变化 ,这严重影响了深部碎屑岩储层的成岩作用。循环热对流是深部储层流体的主要流动方式 ,它控制着自生矿物在砂层中的析出位置和次生孔隙的分布特征

关 键 词:深部储层  有机-无机化学反应  水介质性质  循环热对流  成岩作用

INFLUENCE OF CHEMISTRY OF FLUID AND CIRCULATED CONVECTION CURRENT ON DIAGENESIS OF PETROCLASTIC ROCK IN DEEP FORMATION
Yuan Jing,Zhao Cheng-lin.INFLUENCE OF CHEMISTRY OF FLUID AND CIRCULATED CONVECTION CURRENT ON DIAGENESIS OF PETROCLASTIC ROCK IN DEEP FORMATION[J].Journal of China University of Petroleum,2000,24(1).
Authors:Yuan Jing  Zhao Cheng-lin
Affiliation:Yuan Jing and Zhao Cheng lin
Abstract:Synthetic analysis of petroclastic rock in deep formation of Paleogene in Dongying sag show that acidic medium caused from organic-inorganic interactions and circulated convection current in abnormal high pressure formation are important factors influencing and controlling diagenesis. Changes of chemistry of formation water caused by thermal evolution of organic matters, transformation of clay minerals, thermochemical oxidation\|reduction reaction of sulphate, chemistry of water in oilfield and entrance of hydrocarbon to reservoir strongly influenced diagenesis of clastic reservoir in deep formation. As the main flow manner of formation water in deep reservoir, circulated convection current controlled authigenic mineral location and secondary pore distribution.
Keywords:deep formation reservoir  organic-inorganic interactions  fluid chemistry  circulated convection current  diagenesis
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