API SPEC 4F Specification for Drilling and Well Servicing Structures
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API SPEC 4F Document Information:
Title
Specification for Drilling and Well Servicing Structures
American Petroleum Institute
Publication Date:
Jan 1, 2008
Scope:
This specification states requirements and gives recommendations
for suitable steel structures for drilling and well-servicing
operations in the petroleum industry, provides a uniform method of
rating the structures, and provides two PSLs.
This specification is applicable to all new designs of all steel
derricks, masts, guyed masts, substructures, and crown blocks.
Annex A provides a number of standard Supplementary Requirements
(SRs) which apply only if specified by the purchaser.
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