SN/T 0821-2011
Rules for the inspection of drill pipe for import and export (English Version)

Standard No.

SN/T 0821-2011

Language

Chinese, Available in English version

Release Date

2011

Published By

Professional Standard - Commodity Inspection

Latest

SN/T 0821-2011

Replace

SN/T 0821-1999

Scope

This standard specifies the sampling, inspection items, inspection methods and inspection results judgment rules for imported and exported oil drill pipes. This standard is applicable to the inspection of drill pipes of various specifications and wall thicknesses listed in API Spec 5D for Group 1 and Group 3 used in oil wells.

SN/T 0821-2011 Referenced Document

• API SPEC 5D Specification for Drill Pipe Fifth Edition*， 2024-04-19 Update
• API SPEC 7 Specification for Rotary Drill Stem Elements Fortieth Edition

SN/T 0821-2011 history

• 2011 SN/T 0821-2011 Rules for the inspection of drill pipe for import and export
• 1999 SN/T 0821-1999 Rules for the inspection of welding drill pipes for import and export