On reservoir boundary detection with marine CSEM
用海洋可控源电磁法确定油气储层边界的研究(英文)作者机构:BGP CNPC KMS Technologies-KJT EnterprisesInc.
出 版 物:《Applied Geophysics》 (应用地球物理(英文版))
年 卷 期:2008年第5卷第3期
页 面:181-188页
核心收录:
学科分类:081801[工学-矿产普查与勘探] 081802[工学-地球探测与信息技术] 08[工学] 0818[工学-地质资源与地质工程]
主 题:reservoir boundary detection 3D modeling MCSEM
摘 要:After decades of research and development, Marine Controlled Source ElectroMagnetics (MCSEM) has come into the application phase for oil and gas exploration. However, presently 3D modeling of MCSEM is far from practical with simple models and much computing time. Based on a forward modeling study of 3D frequency-domain MCSEM over a complicated target body and its sensitivity analysis, we derive a method which can delineate the edges of the resistive reservoir. We use the second derivative of the magnitude versus offset (MVO) curve to define the resistive reservoir edges. For the air-wave-dominated far field zone, we suggest using the less affected apparent resistivities in order to improve the adaptability of the method.