吉林油田黑59区块注气井地层压力的计算  

Application of Gas Injection Well Formation Pressure Calculation in Jilin Oilfield Black 59 Blocks

作　　者：王焱[1] 王怒涛[1] 蒋佩[1] 

机构地区：[1]西南石油大学石油工程学院,四川成都610500

出　　处：《天然气与石油》2013年第3期50-52,3,共3页Natural Gas and Oil

基　　金："十二五"国家重大专项"注CO2驱开发动态分析方法及应用研究"(2011ZX05016)

摘　　要：注气井地层压力是油气藏动态分析中的重要参数之一。如何准确地获取目前注气井的地层压力,是油气藏工程的重要课题。介绍了实测法、产能方程反算法、流压—产量外推法和注采系统法等四种计算注气井地层压力方法,并根据实例的计算结果对四种方法的优缺点进行了简要分析,最后优选出了具有较高可靠程度、误差较小的产能方程反算法和注采系统法,作为求取吉林油田黑59区块注气井地层压力的主要方法。Formation pressure of gas injection well is one of important parameters in dynamic analysis on gas reservoir.How to obtain accurate formation pressure of gas injection well is one important question for discussion in reservoir engineering.At present,there are many methods for calculating formation pressure and each has its advantages and disadvantages.CO 2 flooding pilot test goes well in Jilin Oilfield and obvious dynamic reflect has appeared.Introduced are such four methods as field measurement method,productivity equation inverse algorithm,flow pressure-production extrapolation method and injection—production system method in order to select the optimum one for calculating the formation pressure of gas injection wells in Jilin Oilfield Black 59 blocks.Conducted is brief analysis on the advantages and disadvantages of these methods based on calculation results obtained from study cases and finally selected are such two methods with higher reliability and smaller errors as productivity equation inverse algorithm and injection—production system method for calculating gas injection well formation pressure.

关 键 词：注气井 地层压力 产能方程 注采系统法 

分 类 号：TE357.7[石油与天然气工程—油气田开发工程]