收稿日期: 2008-07-28
修回日期: 2008-10-27
网络出版日期: 2009-04-10
基金资助
国家重大基础研究发展规划(973)项目(编号：2001CB209100)资助.
Application of Modern Production Decline Analysis in the |Performance Analysis of Gas Condensate Reservoirs
Received date: 2008-07-28
Revised date: 2008-10-27
Online published: 2009-04-10
现代产量递减分析方法综合考虑流动压力和产量之间关系，通过特征曲线等分析求取地层相关参数并计算单井动态储量，取代了试井的部分功能。在对生产数据进行分析、处理后，采用现代产量递减方法对各单井的生产情况进行动态分析，提出了分析中可能会遇到的几种问题，计算了表皮系数、渗透率及动储量等参数，为井后期开发及井网调整部署提供了依据。经分析，目前吉拉克凝析气田由于边底水上升快，单井控制总储量明显小于气田地质储量，在分析基础上结合地质分析及数值模拟研究成果新钻3口水平井，随着井网逐渐加密，井储量控制程度明显增大。
关键词： 递减分析; 凝析气田; 特征曲线; 动态储量; Blasingame方法
李勇, 李保柱, 胡永乐, 唐明龙, 肖香姣, 张芬娥 . 现代产量递减分析在凝析气田动态分析中的应用[J]. 天然气地球科学, 2009 , 20(2) : 304 -308 . DOI: 10.11764/j.issn.1672-1926.2009.02.304
Combined with the correlation of well bottom\|hole pressure and well production rate, the modern production decline analysis can give reservoir properties and single well dynamic reserve through type curve analysis. This method can substitute part functions of well test analysis. After the production data analysis of the field, the modern production decline analysis is applied for all single wells, and several problems are solved for reference. The skin factor, permeability and well dynamic reserve are calculated, which supports gas field later development and well pattern adjustment deploying. The result shows that the Jilake gas condensate field needs well pattern adjustment because of the edge-bottom water drive and the small well control reserve compared to the geologic reserve. Based on the modern production decline analysis and reservoir simulation results, three new producing horizontal wells are drilled, and the dynamic reserve increases dramatically.
Key words： Gas condensate reservoir; Type curve; Dynamic reserve; Blasingame method.
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