【摘要】 东营凹陷南坡沙河街组四段纯下亚段发育滩坝砂岩油藏,已经探明地质储量近3×108t。滩坝砂岩油藏储层具有埋藏深、砂泥薄互层沉积、物性致密、描述难度大等特点,导致开发效果差,储量动用率低。以东营凹陷南坡樊159地区为例,开展坝砂发育区预测研究,应用地震拓频、属性降维等物探技术寻找油藏"甜点",取得了阶段性成果。研究表明,樊159地区主要存在樊159、纯113和纯斜103共3个坝砂发育区。更多还原

【Abstract】 Beach-bar sandstone reservoirs were developed in Chunxia subsection of the Es24 of Shahejie Formation in the south slope of Dongying Sag and its proven geological reserves was up to 3×108t.The beach-bar sandstone reservoirs had the characteristics of deep burial,the interlayer deposits of thin sand and shale and dense properties and hard to be described.They were poor development with low producing reserves.The Fan-159 Area in the south slope of Dongying Sag was used as an example to forecast bar development areas.The technologies of seismic frequency expansion and attribute reduction were used to search for the reservoir"dessert"and staged achievement was gained.Studies show that there exist 3bar development areas-Fan 159,Chun 133 and Chunxie 103 Areas in Block Fan 159.更多还原