The IADC Lexicon (IADCLexicon.org) is a compendium of upstream-related terms, which, unlike conventional glossaries, are official definitions drawn from legislation, regulation and regulatory guidance, standards (global, national and regional), and IADC guidelines. Terms often have multiple definitions from different sources.
This month’s Featured Term is:
“Elephant Hide” (API SPEC 5DP, Specification for Drill Pipe, First Edition, August 2009.) :
Wrinkled outside diameter surfaces of the drill-pipe body caused by the upsetting process.
(click the link to read the full definition on the IADC Lexicon.)