摘要
地面激发、井中接收是有可能在油田开发中了解剩余油气分布的一类地井电磁勘探技术。本文提出地井垂直电磁Walkaway剖面法,采用积分方程三维模拟软件,对地面变井源距施工方式中的目标体电阻率、尺寸、埋深以及离井距离的模拟,反映了该方法在油气藏开发动态变化的异常响应规律;通过模拟和分析均匀介质背景与层状介质背景两种情况下三维油藏目标动态模型的异常特征,表明该方法探测范围大,信噪比高,可有效监测油气动态变化,为该方法在油田开发中的应用提供了一条新途径。
The surface-to-borehole electromagnetic technology is a method with great potential for detecting residual oil gas.Walkaway vertical electromagnetic profile of surface-to-borehole was put forward.In this paper some rules of dynamic reservoir process are drawn by modeling surface walkaway power supply and changing conductivity,size,depth and distance from receive well of model using 3D integral equation forward code.3D modeling comparison between homogeneous background and layered medium shows that it has wider detection range and more accurate,which can effectively monitor the dynamic oil gas process.The simulation study suggests practical application of walkaway vertical electromagnetic profile method for reservoir exploration as a new approach.
出处
《石油地球物理勘探》
EI
CSCD
北大核心
2012年第4期653-664,682+517,共12页
Oil Geophysical Prospecting
基金
国家重大专项"大型油气田及煤层气开发"中"高精度地球物理勘探技术研究与应用"项目(2011ZX05019-007)资助
