Horizontal geological drilling pipes​

Horizontal geological drilling pipes

Hot-rolled alloy steel geological drilling pipes and casings,
Hot rolled iron or non-alloy steel geological drilling pipes and casings
  • Outer diameter: Φ50mm~Φ168.28mm
  • Wall thickness: 6.00mm~12.7mm
  • Length: 6.0m~12.0m
  • Steel grades: G105、S135、V150
Inquiry

The drilling pipe is used for trenchless horizontal directional drilling pipeline laying projects. It transmits drilling power and transports mud, it has good strength, plasticity, ductility, it is high wear, fatigue, torsion & corrosion resistance.

Execution Standards:

API SPEC 5D 2001: Drill Pipe Specification

API Bul 5C2 1999: Performance of Casing, Tubing, and Drill Pipe

SY/T 6417-2009: Performance of Casing, Tubing, and Drill Pipe

SY/Y 6896.2-2013: Technical Specification for Special Pipe Materials in Petroleum and Natural Gas Industry Part 2: Drill Pipe for Directional Crossings

Mechanical properties:

Grade

Yield strength Rp0.2/MPa

Tensile strength Rm/MPa

Elongation A/%

Charpy impact（J）
   L-10-21℃

G105

724~931

≥793

≥15

54

S135

931~1138

≥1000

≥13

54

V150

1034~1184

≥1103

≥13

80

Outer dia. tolerance：-0.5%D~+1.0%D

Wall thickness tolerance：≥-12.5%S

Full length straightness: ≤0.2%L