Home / Standards / GB/T 21412.7-2018 GB/T 21412.7-2018 Active Petroleum and natural gas industries—Design and operation of subsea production systems—Part 7:Completion/workover riser systems 石油天然气工业 水下生产系统的设计与操作 第7部分:完井或修井隔水管系统 Standard Type GBT ICS 75.180.10 CCS E94 Status 现行 Issue Date 2018-03-15 Implementation 2018-10-01 Responsible Dept 国家标准委 Drafting Unit N/A