摘要
煤层气含量测定时获得的吸附时间参数是评价气体扩散速率的量化指标,也是煤层气资源评价的一个敏感性指标。该指标控制煤层气井初始和长期的产出速率,直接参与煤储层模拟。通过我国部分煤层气井的实际测试,对煤储层的吸附时间特征及影响测试值的因素进行了探讨,对吸附时间参数的应用提出了一些新认识。
The adsorption time as gas evaluating parameter, being obtained in processing of coalbed gas measurement, is the quantitative index for evaluating gas desorption rate. The parameter is important for coalbed gas reservoir simulation and as a sensible index to control initial and long period gas producing rate of coalbed well. The purpose of this paper is to discuss the characteristics and affecting factors of adsorption time and preset some new understanding for this parameter application, based on conducted gas measurements for some coalbed gas wells in China.
出处
《天然气地球科学》
EI
CAS
CSCD
2003年第6期502-505,共4页
Natural Gas Geoscience
基金
十五"国家重点科技攻关项目(编号:2001BA605A-07-01)
科学技术部科研院所社会公益专项资金项目(编号:2001DIA10016)
国家"973"项目(编号:2002CB211703)联合资助.
关键词
煤层气
气含量
吸附时间
解吸速率
Coalbed gas
Gas content
Adsorption time
Desorption rate.
