Page 126 - Industrealize_brochure2022

Seamless Pipes
Oil and Gas

Easy Chip High Cost Effective
Evacuationn Temperatures Insert
Resistant

Oil Country Tubular Goods (OCTG) is a family of
rolled products used in the petroleum industry
(onshore and offshore), which consists of drill
pipes, oil pipes, casing and tubing subjected to
loading conditions according to their specific
application. A drill pipe is a heavy seamless tube
that rotates the drill bit and circulates drilling
fluid. The casing line borehole is particularly
exposed to axial tension and internal pressure
by the pumped oil or gas emulsion. Tubing is the
pipe through which the oil or gas is transported
from the wellbore. Traditionally, OCTG grades
were carbon-manganese steels or Mo-containing
grades up to 0.4% Mo. In recent years, deep well
drilling and reservoirs containing contaminants
that cause corrosive attacks have created a strong
demand for higher strength materials resistant
to hydrogen embrittlement and SCC (Stress
Corrosion Cracking). The manufacturing processes
of these parts require dimensional accuracy,
good repeatability and fair tool life to reach a
reasonable cost-benefit rate.

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