摘要
以郑庄北Ⅲ类资源区的1.5亿m^3先导试验井作为研究对象,通过油藏工程的手段,引入比采气指数、递减率、递减指数等新的参数表征该区煤层气的开发效果,对其产气/水特征、压力变化规律和产量预测方法进行研究。结果显示该区生产井的产气/水和压力变化与实际地质特征存在明显的匹配,同时运用递减规律诊断方程的方法对气井产量降低的初始阶段进行拟合计算可以较为准确的预测后续产气情况。
The paper takes the 150 million pilot development wells distributed in class Ⅲ resource area in the north of Zhengzhuang Block as the research object. By means of reservoir engineering, some new parameters, such as specific gas production index, declining rate and decline exponent, are introduced to characterize the development effect of the CBM in this area and study the laws. The research results show that there are obvious matching rules between the gas production, water production, pressure variation and the geological characteristics.
出处
《中国煤层气》
2017年第4期19-24,共6页
China Coalbed Methane
基金
中国石油华北油田2017年度公司级科研项目<2018年煤层气规划部署研究>
