摘要
地震反演技术在油气地质储量研究及井位部署等方面的应用广泛。由于地震资料的带限性,使得反演时的目标函数在多处存在极小值,需通过在模型空间的广泛搜索寻求全局最优解。模拟退火波阻抗反演方法是寻找全局最优解的较好方法之一,它与约束稀疏脉冲反演及宽带反演方法不同,通过使全局最优对地震资料进行波阻抗反演。该方法综合利用石油地质、地球物理等进行约束反演,最终得到详细的储层模型,其波阻抗反演剖面的分辨率明显高于目前广泛使用的约束稀疏脉冲反演结果。
Seismic inversion technique is widely used in hydroear-bon geological reserve investigation and in well location selection. But zonal limitation of seismic data leads to the existence of several object function minima in inversion, so comprehensive optimal solution has to be widely pursued in the whole model space. Simulated annealing wave impedance inversion is one of the best methods to find optimal solution, in difference with restricted sparse pulse inversion and wideband inversion method, it performs wave impedance inversion on seismic data to realize comprehensive optimization. Petroleum geology and geophysical methods are used to conduct restricted inversion, and the detailed reservoir model is finally obtained , the resolution of its wave impedance inversion profile is much higher than that of restricted sparse pulse inversion.
出处
《大庆石油地质与开发》
CAS
CSCD
2003年第6期67-68,共2页
Petroleum Geology & Oilfield Development in Daqing
关键词
波阻抗反演
模拟退火
约束稀疏脉冲反演
分辨率
wave impedance inversion
simulated annealing
re-stricted sparse pulse inversion
resolution
