摘要
用带润湿剂的比重瓶水密度法测得煤的孔隙下限为0.3～0.4nm,与氦密度法测得的孔隙下限相近,且简便易行;与汞置换法相比,安全可靠,节省时间与费用,能够满足研究煤层气产出特征的需要。
The minimum pore diameter of coal matrix block measured by specific gravity bottle test with water and moist catalysis is about (3～4)×10^(-4)μm. The value is equal to the result with the method of helium density. The gravity bottle test is much easy than helium density measurement,and safer than mercury replacement. It not only satisfies the needs of methane recovery,but also saves time and money.
出处
《地质科技情报》
CAS
CSCD
北大核心
1996年第2期68-70,共3页
Geological Science and Technology Information
基金
"八五"国家重点科技攻关项目(85-102-11)成果
