平湖凝析气藏放一断块产水动态特征研究  被引量:4

Study on Water Production Dynamic Performance of F1 Fault Block in Pinghu Gas Condensate Reservoir

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作  者:孙业恒[1] 

机构地区:[1]中国石化胜利油田分公司地质科学研究院,山东东营257015

出  处:《石油钻探技术》2011年第3期100-105,共6页Petroleum Drilling Techniques

基  金:上海市科委2009年度"创新行动计划"临港新城(海洋科技)科技支撑项目子课题"东海油气田薄油层开发关键技术"(编号:09DZ1201100)部分研究成果

摘  要:针对平湖凝析气藏气井出水问题,依据气井动态测试资料,将出水气井划分为明确出水层位和不明确出水层位两类气井,分别分析了其出水机理和产水动态规律:明确出水层位气井的产出水来自其他断块的水层,其带水生产能力与产水气层的产气比例具有良好的相关关系,出水气层的产气比例越小,气井的带水生产能力越高,反之则带水生产能力越低;不明确出水层位气井的产出水是异常高温高压边水凝析气藏的地层水在生产过程中转成水蒸气后的凝析水。随着开发的进行在边水水体与生产井之间形成3个不同的凝析水饱和流动区,根据凝析气藏地层水气化饱和模式和饱和凝析水生产水气比与压力关系曲线,可以进行气井产水类型的判断和地层水出水风险的预报。For the problem of water production in Pinghu gas condensate reservoir,gas wells are divided into wells with identified and unidentified water producing formation based on gas well dynamic testing data. Water production mechanism and performance are analyzed. The result shows that the gas well water production comes from other blocks. Water production capacity has good correlation with the gas ratio in gas formation with water production. The smaller the gas ratio, the higher the water production capacity and vise verse. The production water in wells without identified formation is transformed by condensate water under abnormal HTHP conditions. With the development of the reservoir,three different saturated zones of condensate water are formed between side water and producing well. According to condensate gas reservoir formation water gasification mode and the relation between water-gas-ratio Of condensate water and pressure, the type of gas well water production and water production risk can be predicted.

关 键 词:凝析油气田 气井水淹 平湖油气田 放一断块 

分 类 号:TE332[石油与天然气工程—油气田开发工程]

 

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