一种基于随钻VSP地震地质导向的钻井轨迹高效优化方法及其应用

杨敬雅, 李相文, 刘永雷, 徐博, 高江涛, 王茂, 吴江勇, 张泉

An efficient method for drilling trajectory optimization based on seismological and geological guidance of VSP data during drilling and its application

Jing-Ya YANG, Xiang-Wen LI, Yong-Lei LIU, Bo XU, Jiang-Tao GAO, Mao WANG, Jiang-Yong WU, Quan ZHANG

图6 基于VSP驱动处理前后速度对比图(曲线、剖面)与井震标定剖面 a—VSP速度、校正前地震速度和校正后地震速度叠合对比;b—原始地震速度场连井剖面;c—应用VSP数据修正后的速度场连井剖面;d—基于新偏移成像的地震数据的VSP标定结果

Fig.6 Velocity contrast map (curve,profile) and well-seismic calibration profile based on VSP driving processing a—the stacking contrast of VSP velocity,pre-correction seismic velocity and post-correction seismic velocity;b—original seismic velocity field cross-well profile;c—the velocity field cross-well profile modified by VSP data;d—the VSP calibration results based on new migration imaging seismic data