摘要
本文研究了应用声波孔隙度(φ_s)与中子孔隙度(φ_s)的差值(简称双孔隙度差值)识别气水层的方法。 研究了气层声波时差与孔隙度关系,自然伽马相对值和自然电位组合与含水饱和度的关系;并解释了声波孔隙度和原始含气饱和度。
<ABSTRACT> This paper discusses how differences beween sonic porosity (φ)
and ncutron porosity (φN ) are used to distinguish gas-water sands.
The relations between sonic travel time in gas sands and porosity, relative
value of natural gamma ray, composition of self-potential and water saturation
is studied, interpreting sonic porosity and original gas saturation.
出处
《大庆石油地质与开发》
CAS
CSCD
北大核心
1990年第4期71-78,共8页
Petroleum Geology & Oilfield Development in Daqing
关键词
气田
气层
水层
划分
孔隙度
:gas sand, log interpretation porosity saturation, Fuyu,Yangdaehengzi reservoir. 3-Zhao depression
