基于现代产量递减分析法的煤层气井应用研究

Research on Application of CBM Wells Based on Modern Production Decreasing Analysis

以系统阐释现代产量递减分析法发展为基础,根据来自延川南区某一煤层气井组出产的资料,并结合使用Blasingame、Agarwal-Gardner、NPI、Transient这几种分析版图,得出了这一井组的有效裂缝半长、储层渗透率和泄流半径,并且分析了它们与加砂量和压裂总液量之间的各种关系,达到了研究现代产量递减分析于煤层气井中利用的目的。

Based on the systematic interpretation of the development of the modern production decline analysis method, based on the data from a gas well group in a certain coal seam well in the south of Yanchuan, and using a combination of Blasingame. Agarwal-Gardner, NPI, and Transient analysis charts, have obtained the effective fracture half length, reservoir penetration probability, and discharge radium of a coal seam well formation were analyzed and their relationships with the sand addition amount and the total fracturing fluid volume were analyzed, and the modern production decline analysis was used to study the utilization of coalbed methane wells the goal of.