Home / Standards / GB/T 21411.2-2009 GB/T 21411.2-2009 Active Downhole equipment for petroleum and natural gas industries - Progressing cavity pump systems for artificial lift - Part 2: Surface-drive systems 石油天然气工业井下设备 人工举升用螺杆泵系统 第2部分：地面驱动装置 Standard Type GBT ICS 75.180.10 CCS E92 Status 现行 Issue Date 2009-04-02 Implementation 2010-01-01 Responsible Dept 国家标准委 Drafting Unit N/A