Home / Standards / GB/T 41164-2021 GB/T 41164-2021 Active Specifications technology for multistage fracturing in horizontal well within roof of broken-soft and low permeability coal seam 碎软低渗煤层顶板水平井分段压裂技术规范 Standard Type GBT ICS 73.020 CCS D15 Status 现行 Issue Date 2021-12-31 Implementation 2022-07-01 Responsible Dept 中国煤炭工业协会 Drafting Unit N/A