Coverage This standard specifies the technical delivery conditions for steel drill pipe with upset pipe body ends and welded on tool joints for use in drilling and production operations in petroleum...
Coverage This standard specifies requirements for the following drill stem elements: upper and lower kelly valves; square and hexagonal kellys; drill stem subs; standard steel and non-magnetic drill...
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...