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API SPEC 7-1

1st Edition, March 2006

Complete Document

Specification for Rotary Drill Stem Elements

Includes all amendments and changes through Reaffirmation Notice , April 2015


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Product Details:

  • Revision: 1st Edition, March 2006
  • Published Date: April 2015
  • Status: Active
  • Document Language: English
  • Published By: American Petroleum Institute (API)
  • Page Count: 110
  • ANSI Approved: Yes
  • DoD Adopted: No

Description / Abstract:

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.

NOTE 1 For the purposes of the provision in footnote a, API Specs 8A and 8C are equivalent to ISO 13535.

NOTE 2 For the purposes of the provision in footnote b, API Specs 5D and 7 are equivalent to ISO 11961.

NOTE 3 All connections between lower kelly upset and the bit are RH.

NOTE 4 All connections between upper kelly upset and swivel are LH.