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API Spec 4F:2008

Заменен
Drilling and Well Servicing Structures, Third Edition — 45 стр.
Effective July 1, 2008

Covers the design, manufacture, and use of steel derricks, portable masts, crown block assemblies, and substructures suitable for drilling and well-servicing operations in the petroleum industry. It includes requirements for marking, inspection, a uniform method of rating, and design loading for the equipment. This document provides two product specification levels (PSLs) that define two levels of technical and quality requirements.
Тематика
Series 4: Derricks and Masts