DIN EN ISO 11961 E : 2019现行
Petroleum and natural gas industries – Steel drill pipe (ISO 11961:2018)
出版：German Institute for Standardisation (Deutsches Institut für Normung)
专家解读视频
This document specifies the technical delivery conditions for steel drill-pipes with upset pipe-body ends and weld-on tool joints for use in drilling and production operations in petroleum and natural gas industries for three product specification levels (PSL-1, PSL-2 and PSL-3).
ISO 11961:2018 - Identical
EN ISO 11961:2018 - Identical
ISO 11961:2018 - Identical
EN ISO 11961:2018 - Identical
