钻柱单向阀规范

详细信息   

• 中文主题词：钻柱 ; 单向阀 ; 规范
• 标准号：API SPEC 7NRV-2006
• 发布日期：2006-07-10
• 英文题名：Specification for Drill String Non-return Valves
• 英文主题词：Specification ; Drill String ; Non-return Valves
• 标准状态：现行
• 发布单位：US-API
• 国际标准分类号：75.180.10
• 载体形态：32P.;A4
• 中国标准分类号：E92
• 国别：美国石油学会

文摘

This standard has been developed by users/purchasers and suppliers/manufacturers of Drill String Non-return Valve equipment intended for use in the petroleum and natural gas industry worldwide. This Standard is intended to give requirements and informatio