标准编号：ISO 11961:2018
中文名称：石油和天然气工业 钻探钢管
英文名称：Petroleum and natural gas industries — Steel drill pipe
发布日期：2018-10
标准范围
This document 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 this document. The requirements that define different levels of standard technical
requirements for PSL-2 and PSL-3 are in Annex G.
This document covers the following grades of drill-pipe:
— grade E drill-pipe;
— high-strength grades of drill-pipe, grades X, G and S;
— enhanced H S resistance drill pipe, grades D and F.
2
A typical drill-pipe configuration is given, showing main elements and lengths (see Figure B.1). The
main dimensions and masses of the grades of drill-pipe are given in both SI units (see Table A.1) and in
USC units (see Table C.1).
This document can also be used for drill-pipe with tool joints not specified by ISO or API standards.
By agreement between purchaser and manufacturer, this document can also be applied to other drill-
pipe body and/or tool-joint dimensions. This document lists supplementary requirements that can
optionally be agreed between purchaser and manufacturer, for testing, performance verification and
non-destructive examination (see Annex E).
This document does not consider performance properties, nor performance degradation of the product
when in service.
NOTE 1 In this document, drill-pipe is designated by label 1, label 2, grade of material (E, X, G, S, D and F),
upset type and type of rotary shouldered connection. Designations are used for the purpose of identification in
ordering.
NOTE 2 Reference can be made to ISO 10424-2 or API Spec 7-2 for the detailed requirements for the threading
of drill-pipe tool joints.
NOTE 3 Reference can be made to API RP 7G for the performance properties of the drill-pipe.
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