缝洞型油藏动态储量计算的一种新方法——以塔里木盆地哈拉哈塘油田为例  

A New Method to Calculate Dynamic Reserves in Fractured-Vuggy Reservoirs:A Case from Halahatang Oilfield,Tarim Basin

作　　者：陈利新 王连山 高春海 孙银行 王霞 张茂 

机构地区：[1]中国石油塔里木油田分公司塔北勘探开发项目经理部,新疆库尔勒841000 [2]恒泰艾普石油天然气技术服务股份有限公司,北京100084

出　　处：《新疆石油地质》2016年第3期356-359,共4页Xinjiang Petroleum Geology

基　　金：国家科技重大专项(2011ZX05004-004)

摘　　要：缝洞型碳酸盐岩油藏大部分油井的开发特点互不相同,用常规方法对其动态储量难以准确评价。物质平衡法计算动态储量时需要的计算参数较多,难以准确求取,导致计算结果存在一定的误差。当准确判断油藏所处的驱动阶段后,利用油藏弹性驱阶段两次测压井底原油密度的差值及其期间的累计产油量,可以较为准确地求取其动态储量。与物质平衡法及其他方法相比,井底原油密度差法的优点是规避了原油体积系数、原油压缩系数及岩石压缩系数对计算结果的影响,进一步提高了动态储量计算结果的准确性。It is difficult for conventional methods to evaluate dynamic reserves in fractured-vuggy carbonate reservoirs due to great differ-ences in well performances.Accurate results cann＇t be obtained with material balance method because more parameters are needed for cal-culation,which tends to bring some errors of them.After the driving stage is defined for reservoirs,the difference value of bottom-hole crudeoil density obtained from two pressure tests and the cumulative production during the stage can be used to calculate the dynamic reservesmore accurately.Compared with material balance equation and other methods,the method of bottom-hole crude oil density difference canavoid impacts of crude oil volume factor,crude oil compressibility coefficient and rock compressibility coefficient on calculation results,and the accuracy of calculated dynamic reserves can be further improved.

关 键 词：塔里木盆地 哈拉哈塘油田 缝洞型碳酸盐岩油藏 动态储量 物质平衡法 井底原油密度差 

分 类 号：TE133[石油与天然气工程—油气勘探] TE313.8