This International Standard specifies 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 product specification levels. This International Standard is applicable to all new designs of all standard steel derricks, special steel derricks, portable masts and substructures. Annex A provides a number of standard supplementary requirements which apply only if specified by the purchaser.
DS/EN ISO 13626:2005 history
2005DS/EN ISO 13626:2005 Petroleum and natural gas industries - Drilling and production equipment - Drilling and well-servicing structures