BS EN ISO 11961:2008 Petroleum and natural gas industries. Steel drill pipe
BS EN ISO 11961 specifies the technical delivery conditions for steel drill-pipes with upset pipe-body ends and weld-on tool joints for use in drilling and production operations in petroleum and natural gas industries for three product specification levels (PSL-1, PSL-2 and PSL-3). The requirements for PSL-1 form the basis of BS EN ISO 11961. The requirements that define different levels of standard technical requirements for PSL-2 and PSL-3 are in Annex G.
BS EN ISO 11961 covers the following grades of drill-pipe:
Grade E drill-pipe
High-strength grades of drill-pipe, grades X, G and S.
A typical drill-pipe configuration is given, showing main elements and lengths. The main dimensions and masses of the grades of drill-pipe are given in both SI units and in USC units.
BS EN ISO 11961 can also be used for drill-pipe with tool joints not specified by ISO or API standards.
By agreement between purchaser and manufacturer, BS EN ISO 11961 can also be applied to other drill-pipe body and/or tool-joint dimensions. BS EN ISO 11961 lists supplementary requirements that can optionally be agreed between purchaser and manufacturer, for testing, performance verification and non-destructive examination.
BS EN ISO 11961 does not consider performance properties.
Contents of BS EN ISO 11961:
- Foreword
- Introduction
- Scope
- Conformance
- Dual citing of normative references
- Units of measurement
- Normative references
- Terms, definitions, symbols and abbreviated terms
- Terms and definitions
- Symbols and abbreviated terms
- Information to be supplied when placing orders for drill-pipe
- Requirements for drill-pipe
- General
- Dimensions, masses and connections
- Material requirements
- Process of manufacture for drill-pipe
- Traceability
- Inspection and testing — General
- Testing of welds
- Tensile test
- Hardness test
- Charpy V-notch impact test
- Transverse side-bend test
- Imperfections and defects in drill-pipe
- Visual inspection of the drill-pipe weld zone
- Non-destructive examination of the weld zone
- Marking of drill-pipe
- Minimum facility requirements for drill-pipe manufacturers
- Documentation requirements of drill-pipe
- Requirements for drill-pipe body
- Information to be supplied when placing orders for drill-pipe bodies
- Dimensional and mass requirements
- Material requirements
- Process of manufacture
- Traceability
- Inspection and testing — General
- Testing of chemical composition
- Tensile tests
- Charpy V-notch impact tests
- Drill-pipe-body wall thickness
- Drill-pipe-body length
- Internal upset
- Internal profile
- Straightness
- Upset alignment
- Mass determination
- Imperfections and defects of drill-pipe body
- Visual inspection of drill-pipe body
- Non-destructive examination
- Marking
- Minimum facility requirements for drill-pipe-body manufacturer
- Documentation requirements
- Requirements for tool joints
- Information to be supplied when placing orders for tool joints
- Dimensional requirements
- Material requirements
- Process of manufacture
- Traceability
- Inspection and testing — General
- Testing of chemical composition
- Tensile tests
- Hardness tests
- Charpy V-notch impact tests
- Imperfections and defects
- Non-destructive examination
- Marking
- Minimum facility requirements for tool-joint manufacturers
- Documentation requirements for tool joints
