DS DS/EN ISO 10424-1
DS DSEN SO 10424-1 2004-DEC-01 Petroleum and natural gas ndustres - Rotary drllng equpment - Part 1 Rotary drll stem elements
DS DSEN SO 10424-1 2004-DEC-01 Petroleum and natural gas ndustres - Rotary drllng equpment - Part 1 Rotary drll stem elements
This part of ISO 10424 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 collars; drilling and coring bits. This part of 10424 is not applicable to drill pipe and tool joints, rotary shouldered connection designs, thread gauging practice, or grand master, reference master and working gauges.
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