低渗透气藏修正等时试井资料处理新方法  

A New Method for Processing of Modified Isochronal Well Test Data in Low Permeability Gas Reservoir

作　　者：张宗林[1] 张振文[1] 胡建国[2] 

机构地区：[1]中国石油长庆油田分公司第一采气厂,陕西靖边718500 [2]中国石化石油勘探开发科学研究院,北京100083

出　　处：《新疆石油地质》2006年第4期481-483,共3页Xinjiang Petroleum Geology

摘　　要：修正等时试井在气田产能评价中发挥了相当重要的作用。对于低渗透气藏,气井延续流量阶段的流压很难达到平稳,同时不同时间二项式方程的系数B难以保持常数,制约了修正等时试井的应用。建立了适合低渗透气藏修正等时试井资料处理新方法,通过应用实例的对比,该方法得到的结果较常规方法更精确、更可靠。Modified isochronal well test plays an important role in productivity evaluation of gas field. For low permeability gas reservoir, it is difficult to keep the bottom hole flowing pressure stable in the stage of continuing flowing of gas well. At the same time, it is also difficult for coefficient B of turbulent flow equation with different time to maintain constant, hence the application of modified isochronal well test is confined. In this paper, the new method for processing of modified isochronal well test data for low permeability gas field was established. By application and case comparison, the resuhs show that this method is more accurate and reliable than existing conventional approaches.

关 键 词：低渗透气藏 气藏 试井 方法 

分 类 号：TE375[石油与天然气工程—油气田开发工程]