摘要
粘土矿物分布的广泛性和特有的晶体结构、物理化学特性,使它与石油地质和钻采工程中诸多方面有着密切的关系。不同类型的粘土矿物与砂岩孔隙度、渗透率有不同的相关关系;同一种粘土矿物形态和产状的差异与孔隙度、渗透率相关性也有差异。粘土矿物是最重要的油气层损害的潜在因素,不同类型的粘土矿物引起的油气层损害程度有明显的区别,根据粘土矿物分析研究成果采取相应的预防油气层损害的有利措施,才能使油气稳产、高产。
Clay minerals are closed to petroleum geology and drilling-producing engineering owing to their distribution universality, unique crystal structure and physicochemical property. There are different correlations between different clay minerals and sand porosity and permeability; and there exist differentiations in correlativity or correlation coefficient between the same clay mineral and sand porosity and permeability due to its difference in shape and occurrence. Such a most important and potential factor for causing oil-gas reservoir damages appears the fact that different clay minerals could cause different damages of oil-gas reservoir. It is concluded that taking corresponding and advantageous measures for preventing oil-gas reservoir damages based on available studied results of clay minerals can gain stable and high yields of oil-gas reservoirs or fields.
出处
《新疆石油地质》
CAS
CSCD
北大核心
2009年第4期533-536,共4页
Xinjiang Petroleum Geology
关键词
粘土矿物
油气
储集层物性
油气层损害
clay minerals
hydrocarbon
petrophysical property
oil-gas reservoir damage
