دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: see internal upset end. International Association of Drilling Contractors (IADC) n: an organisation of drilling contractors that sponsors or conducts research on education, accident prevention, drilling technology, and other matters of interest to drilling contractors and their employees. Its official publication is The Drilling Contractor: Address: Box 4287;Houston, TX 77210;(281) 578-7171;fax (281) 578-0589.

n: the inner wall of drilling tube that is thickened.