塔河缝洞型油藏未充填溶洞体积确定方法  

Determination method of unfilled cave volume in Tahe fracturevuggy reservoir

作　　者：朱桂良[1] ZHU Guiliang(Petroleum Exploration&Production Research Institute,SINOPEC,Beijing 100083,China)

机构地区：[1]中国石化石油勘探开发研究院,北京100083

出　　处：《中国科技论文》2025年第1期24-29,共6页China Sciencepaper

基　　金：国家科技重大专项(2016ZX05014-004)。

摘　　要：针对塔河缝洞型油藏未充填溶洞体积大小确定的难题,基于试井动态数据分析,通过建立油气水三相流存在时井储系数与未充填溶洞体积之间的关系式,形成了基于试井井储系数的未充填溶洞体积确定方法,确定了塔河现场生产井钻遇未充填溶洞等效半径最大值为14.8 m,平均值为5.91 m,为缝洞型油藏的数值模拟、试井分析及现代产量递减分析提供了重要的参考依据。In order to solve the problem of determining the volume size of unfilled karst caverns in Tahe fracture-cavity type reservoir,an unfilled karst cave volume determination method based on well test reservoir coefficient was formed by establishing the relationship between well storage coefficient and unfilled karst cave volume in the presence of oil,gas and water three-phase flow on the basis of dynamic data analysis of well testing.Based on this method,it was determined that the maximum equivalent radius of the unfilled cave encountered in the field production wells of Tahe is 14.8 m and the average value is 5.91 m.This provides important reference for numerical simulation,well test analysis and modern production decline analysis of fractured-vuggy reservoir.

关 键 词：溶洞体积 未充填溶洞 井储系数 缝洞型油藏 塔河油田 

分 类 号：TM344.1[电气工程—电机]