生产分析方法在碳酸盐岩凝析气井动态分析中的应用  

The application of single-well production analysis for carbonate gas condensate reservoirs

作　　者：李勇[1] 李保柱[1] 胡永乐[1] 施英[2] 邓兴梁[2] 丁伟 

机构地区：[1]中国石油勘探开发研究院油气田开发所,北京100083 [2]中国石油塔里木油田公司勘探开发研究院,新疆库尔勒841000 [3]中国石油国际海外研究中心,北京100083

出　　处：《油气地质与采收率》2009年第5期79-81,共3页Petroleum Geology and Recovery Efficiency

基　　金：国家重大基础研究发展规划“973”项目“高效天然气藏形成分布规律与凝析、低效气藏经济开发的基础研究”(2001CB209100)

摘　　要：碳酸盐岩凝析气藏具有极强的非均质性,其单井生产动态分析非常复杂。生产分析方法综合考虑流动压力与产量的关系,通过特征曲线等分析方法对单井生产动态进行诊断分析,并求取地层渗透率、表皮系数等相关参数及单井动态储量。以塔中Ⅰ号气田开发试验区为例,阐述了生产分析方法在碳酸盐岩凝析气藏单井动态分析中的具体应用。由分析结果可知,生产分析方法对单井生产动态具有一定的诊断作用;该方法对储层参数评价准确,与后期井的实际生产动态吻合较好,对未有不稳定测试资料的碳酸盐岩凝析气井来说,可直接采用生产分析法对储层进行评价;该方法可以为单井后期开发及措施实施提供依据。Carbonate gas condensate reservoir is extremely heterogeneous,so the well production performance of this kind of reservoirs is very difficult. A method of production analysis for carbonate gas condensate reservoirs is proposed,which fully integrates flow pressure and production rate in order to correctly evaluate the formation permeability,well skin and dynamic reserve and so on. And the characteristic curve analysis of this method can provide some diagnostic information. Experiment was made in Tazhong No. 1 gasfield to present the details of this method. The results show that production analysis is diagnostic to single-well production performance. It can correctly evaluate the properties of the reservoir. The result matches with the actual well production performance at later stage. The production analysis method can be directly used for the reservoir property evaluation for the wells without any pressure transient tests. This method can provide basic foundation for well production design and well stimulation.

关 键 词：生产分析 碳酸盐岩 凝析气藏 动态分析 特征曲线 

分 类 号：TE344[石油与天然气工程—油气田开发工程]