API 7-1 : 2006

API 7-1 : 2006

SPECIFICATION FOR ROTARY DRILL STEM ELEMENTS

American Petroleum Institute

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Abstract

Describes 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.

General Product Information

Document Type Standard
Status Current
Publisher American Petroleum Institute
ProductNote Reconfirmed EN

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