摘要
在自然电位测井中,偶极层边缘是确定的,它的形状实际上是不确定的,这给反演带来了很大的困难。根据张庚骥先生的向量势理论,自然电位不是由偶极层产生,而是由旋度源产生,旋度源在偶极层的边缘。采用概率成像的方法,对地下空间的点状旋度源进行成像,把概率成像、自然电位测井和向量势理论相结合,给出扫描函数,实现了无界均匀空间中自然电位测井的反演。并提供了2个算例分析。
It is difficult to inverse spontaneous potential(SP) logging data because the borders of dipole layers are fixed but the shapes are uncertain. According to Mr Zhang's vector potential theory, SP doesn't generated or originated from dipole layers but curl sources in the borders of dipole layers. Probability tomography is used to imagine the point curl sources in the ground space. Combined probability tomography with SP logging data and vector potential theory , scanning function is figured out to inverse the SP data in infinite and uniform space. Two cases are given.
出处
《测井技术》
CAS
CSCD
2005年第1期23-26,共4页
Well Logging Technology
关键词
自然电位
偶极层
向量势理论
概率成像
扫描函数
旋度源
spontaneous potential
dipole layer
vector potential theory
probability tomography
scanning function
curl source
