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About This Item

 

Full Description

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.
 

Document History

  1. API Spec 4F


    Drilling and Well Servicing Structures, Fourth Edition

    • Most Recent
  2. API Spec 4F

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    Drilling and Well Servicing Structures, Third Edition

    • Historical Version
  3. API 4F


    Specification for Drilling and Well Servicing Structures

    • Historical Version