摘要
本文论述了在特定的条件下，利用振幅与厚度成线性关系（ΔH=K·A），估算薄砂层厚度的基本原理和方法，重点阐述了比例因子K的两种求取方法：（1）在有井控制的情况下，采用算术平均法，即K／N（N为采用的井数），求得比例因子K；（2）在无井控制的砂层情况下，采用比例因子K依赖于反射系数R的大小的变化规律K1R1=K2R2，求得比例因子K。K值的求取是估算薄层厚度的关键，文中列举了厚度估算的应用实例。
Ren Dunzhan,(Gcophysical Rescarch Institute,Burcau of Oil Gcophysical Prospecting,Zhuozhou 072751) Considering the linearity of amplitude to thickness under certain circumstances,we describe the principle and methods of evaluation of sand thin-bed, giving emphasis to two methods of computing scale factor K: (1)with control wells,using method of average,i. e. K is the number of control wells); (2)without control wells,using the formula K1R1 = K2R2 (R1,R2are reflection coefficients). Since the computation of factor K is the crux in the evaluation of thinbed thickness,we present practical examples of the evaluation.
出处
《石油物探》
EI
CSCD
北大核心
1995年第4期73-78,共6页
Geophysical Prospecting For Petroleum
