喇北东块萨三组沉积特征研究

Study and Application of Sedimentary Characteristics on S Ⅲ Oil-bearing Formations in the Thrith District of Northeast Block

针对喇嘛甸油田层状砂岩油藏特高含水期开发阶段剩余油零散复杂的状况,通过对密井网储层进行精细解剖,确定喇嘛甸油田北东块萨三组各沉积单元砂体的沉积特征,揭示砂体平面非均质特点;将储层分布特征及生产动态情况紧密结合,分析特高含水期分流平原相砂体剩余油分布规律,指导三元复合驱试验区的措施挖潜方案编制,在精细调整中取得了良好的挖潜效果。

According to the complicated condition of residual oil in high water cut development stage in bedded sandstone of Lamadian Oilfield,fine anatomizing method is used in dense well pattern reservoir to make sure the sedimentary characteristics of every sedimentation sand unit of Sasan group NE block in Lamadian oilfield,and the heterogeneous characteristics of sand unit plane could be revealed.United characteristics of reservoir distribution and condition of production performance closely,the distribution law of sand unit residual oil of distributary plain on extra high water cut development is analyzed,the project programming of potentiality exploration tapping in experimental area of ASP flooding is guided preferably,so the better effect of potentiality exploration is got in fine adjustment.