Home / Standards / GB/T 39539-2020 GB/T 39539-2020 Active Technical requirements for determination of gas diffusion coefficient in shale reservoir 页岩储层气体扩散系数的测定技术要求 Standard Type GBT ICS 75.010 CCS E 11 Status 现行 Issue Date 2020-11-19 Implementation 2021-06-01 Responsible Dept 国家标准委 Drafting Unit N/A