Drill Pipe

Drill Pipe

Drill pipes for drilling oil and gas

  • Outer diameter: Φ60.32mm~Φ168.28mm
  • Wall thickness: 7.11mm~12.7mm
  • Major Material or Grade API： E75、X95、G105、S135
  • Major Material or Grade Non-API: S155
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Standards:
API SPEC 5DP：Specification for Drill Pipe
ISO 11961：Petroleum and natural gas industries -Steel drill pipe
SY/T-5200：Drill stem subs
IRP VOLUME 1 : CRITICAL SOUR DRILLING

API SPEC 5DP Mechanical Properties

SSC requirement: NACE test as per NACE TM0177 Method A Solution A
Charpy Impact Average: Minimum average Charpy Impact Value at room temperature, 3/4 standard size (7.5 X 10mm2)
(1)Minimum average Charpy Impact Value at –20°C, 3/4 standard size (7.5 X 10mm2)
(2)Minimum average Charpy Impact Value at –60°C, 3/4 standard size (7.5 X 10mm2)

Product features:
(1) While ensuring strength, it has good toughness and high torsional strength, and can withstand enormous internal and external pressure, torsion, bending, and vibration;
(2) Has good weldability;
(3) The product has high dimensional accuracy, with a straightness of 1mm/m.

Application

The pipe body with thickened ends is mainly suitable for drilling and production operations in oil and gas exploration and development processes. It is a connecting rod with drilling tools used to transmit power.