摘要
对于岩性、物性差异较大的砂砾岩储层,测井解释模型的建立不能套用岩性物性相近的较为简单的砂泥岩储层标准。为此,以取心井岩心分析为基础,分沉积相分岩性分别研究砾岩、含砾砂岩-砂岩储层岩性、物性、电性和含油性两两之间的关系,同时对不同的岩性采用不同的地层指数,分别建立了砾岩和含砾砂岩-砂岩孔隙度、渗透率、含油饱和度测井解释模型。应用所建测井解释模型对研究区进行了二次解释,结果表明分相带分岩性建立的测井解释模型具有较高精度,应用该方法对提高砂砾岩油藏储层测井精细解释的准确性具有实际意义。
A model for logging interpretation of glutenite reservoirs with large differences between lithology and physical property was not simply based on the criterion of siltstone reservoirs with similar lithology and physical property to be used.Based on core analyses of coring wells,the four property relationships(i.e,lithology,physical property,conductivity and oil bearing)between conglomerate and glutenite formation were studied;the logging interpretation models were established for porosity,permeability and oil saturation in conglomerate and glutenite reservoirs with different lithologies.By using the interpretation models,the studied area was reinterpreted.The result shows that the interpretation models based on different sedimentary microfacies and different lithologies have higher accuracy and important significance in improving accuracy of conglomerate reservoir interpretation.
出处
《石油天然气学报》
CAS
CSCD
北大核心
2008年第5期85-88,98,共5页
Journal of Oil and Gas Technology
关键词
测井解释
沉积微相
砾岩
砂砾岩
解释模型
log interpretation
sedimentary microfacies
conglomerate
glutenite
