苏伊士湾中新统蒸发岩广泛发育,部分钻井在蒸发岩层系测试获得工业油流,展示出良好的油气勘探开发前景。为了厘清蒸发岩层系储层特征及展布规律,以埃及North West Gemsa区块中新统South Gharib组为例,利用岩心、铸体薄片、压汞实验、物...苏伊士湾中新统蒸发岩广泛发育,部分钻井在蒸发岩层系测试获得工业油流,展示出良好的油气勘探开发前景。为了厘清蒸发岩层系储层特征及展布规律,以埃及North West Gemsa区块中新统South Gharib组为例,利用岩心、铸体薄片、压汞实验、物性分析及测井资料等,对SG组岩性及储层特征进行研究。结果表明:SG组岩石类型多样,以盐岩为主,夹硬石膏、杂卤石、光卤石及白云岩等;储集空间主要为晶间孔,样品压汞曲线形态及孔喉半径分布显示出细歪度、微细喉等特征,渗流条件较差;白云岩及叶片状硬石膏物性条件相对较好,为研究区重要的储层发育岩石类型,其余蒸发岩类物性整体较差,一般不能作为储层;有利储层分布区主要位于区块西部,为SG组下步勘探重点区域。该研究成果对苏伊士湾地区中新统蒸发岩层系的油气勘探开发具有重要指导意义。展开更多
The Gulf of Suez region is one of the most interesting geothermal areas in Egypt because of the high temperatures of its springs.The eastern and western shores of the Gulf of Suez are characterized by superficial ther...The Gulf of Suez region is one of the most interesting geothermal areas in Egypt because of the high temperatures of its springs.The eastern and western shores of the Gulf of Suez are characterized by superficial thermal manifestations including a cluster of hot springs with varied temperatures.Variations of deuterium and oxygen-18 concentrations in thermal waters have been used to aid in describing the source of recharge in the Gulf of Suez hot springs.Isotope and geochemical data for the Gulf of Suez thermal waters suggest that recharge to the hot springs may not be entirely from the Gulf of Suez water,but possibly from the meteoric water that comes from areas of higher altitude surrounding the hot springs.展开更多
文摘苏伊士湾中新统蒸发岩广泛发育,部分钻井在蒸发岩层系测试获得工业油流,展示出良好的油气勘探开发前景。为了厘清蒸发岩层系储层特征及展布规律,以埃及North West Gemsa区块中新统South Gharib组为例,利用岩心、铸体薄片、压汞实验、物性分析及测井资料等,对SG组岩性及储层特征进行研究。结果表明:SG组岩石类型多样,以盐岩为主,夹硬石膏、杂卤石、光卤石及白云岩等;储集空间主要为晶间孔,样品压汞曲线形态及孔喉半径分布显示出细歪度、微细喉等特征,渗流条件较差;白云岩及叶片状硬石膏物性条件相对较好,为研究区重要的储层发育岩石类型,其余蒸发岩类物性整体较差,一般不能作为储层;有利储层分布区主要位于区块西部,为SG组下步勘探重点区域。该研究成果对苏伊士湾地区中新统蒸发岩层系的油气勘探开发具有重要指导意义。
基金the stuff of National Research of Astronomy and Geophysics,Egypt for their continuous support and help
文摘The Gulf of Suez region is one of the most interesting geothermal areas in Egypt because of the high temperatures of its springs.The eastern and western shores of the Gulf of Suez are characterized by superficial thermal manifestations including a cluster of hot springs with varied temperatures.Variations of deuterium and oxygen-18 concentrations in thermal waters have been used to aid in describing the source of recharge in the Gulf of Suez hot springs.Isotope and geochemical data for the Gulf of Suez thermal waters suggest that recharge to the hot springs may not be entirely from the Gulf of Suez water,but possibly from the meteoric water that comes from areas of higher altitude surrounding the hot springs.
