Manufacturing Specification of Drill Pipe
for Sour Service Application

TS-1 Drill Pipe for Sour Service ApplicationThe recently released Standard TS-1 specification outlines manufacturing requirements for drill pipe used in a sour service environment.  Manufacturing drill pipe joints to this specification allows you to control material properties, testing, dimensions, and inspection requirements which will help mitigate sour service drill pipe failures.


Standard TS-1 has two pipe grades: TS-95 and TS-105 with minimum yield strengths of 95 ksi and 105 ksi, respectively, while the tool joints have a controlled yield strength of 110 ksi. The standard also covers NACE H2S testing for drill pipe tubes, tool joints, and welds, making this standard compliant with the NACE MR0175 standard.


  • Also features:
  • Manufacturing requirements such as hardness values, hardness variation, chemical composition, testing frequency, etc. that are more stringent than the current Canadian IRP standard for sour service drill pipe
  • Mill inspections including inspection methodology, standardization, imperfection tolerance, wall thickness tolerance, and more
  • NACE H2S weld testing, which is unique to TS-1
  • Manufacturing requirements that are in tabular format to facilitate ease of use
  • Requirements on supplementary properties such as hardbanding, cold rolling of threads, phosphating, bench marks, thread protectors, Internal Plastic Coating (IPC), etc.

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