气田采收率计算过程中的问题探讨

The discussion about some issues of the calculation of recovery ratio in gasfield

李宝国 石万里 王淑娟 郝玉鸿

Li Baoguo Shi Wanli Wang Shujuan Hao Yuhong

中国石油天然气股份有限公司长庆石油勘探局培训中心, 甘肃宁县 745217; 中国石油天然气股份有限公司长庆油田分公司第二采气厂, 陕西榆林 719000

Training Center of Changqing Petroleum Exploration Bureau, PetroChina Company Limited, Ningxian 745217, China; Changqing Oilfield Company No.2 Gas Production Plant, PetroChina Company Limited, Yulin 71900, China

人们有时对"采收率"的理解和应用比较笼统,往往忽视了"采收率与地质储量应满足一一对应的逻辑匹配关系"这一基本原则,把静、动态地质储量或者各自对应的采收率相混淆,错误地理解和应用采收率,导致可采储量误差大。基于采收率的定义和计算原理,探讨了动态地质储量与静态地质储量及各自对应采收率之间的区别和联系,提出了根据动、静地质储量比换算采收率的关系式,为今后正确理解和合理应用采收率、得到正确可靠的可采储量及认识和结论起到重要指导作用;同时提出了"重视可采储量、动态地质储量及其采收率,淡化探明地质储量及其采收率"的观点。

Sometimes we comprehend and apply the concept of "recovery ratio" in general terms, ignoring the basic principle that "recovery ratio should match with geological reserves one by one in logic", confuse the static and dynamic geological reserves or corresponding recovery ratios, and comprehend and use it by mistake. This passage discusses the differentiation and relation of the static and dynamic geological reserves with corresponding recovery ratios, put forward the formulary to convert recovery ratio by the ratio of the static and dynamic geological reserves which gives significant directions to the correct understanding and use of recovery ratio. The passage also brings forward the point of view that "attach more importance to the recoverable reserves, dynamic geological reserves and its recovery ratio".