API 7-1 : 2006 : INC : ADD 3 : 2011

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

Published
Document Type	Standard
Status	Current
Publisher	American Petroleum Institute
ProductNote	Reconfirmed 2011
Pages
ISBN