ASM Failure Analysis Case Histories: Oil and Gas Production Equipment
Damage to Tool Joints in Hydrogen Sulfide-Carrying Natural Gas Drilling Operation
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Published:2019
Abstract
During natural gas drilling in the EMS region in 1956, considerable numbers of longitudinal cracks and transverse fractures occurred in the connecting pieces of the bore rods. The connectors were screwed onto the rods by means of a fine thread and tightly joined with it by shrinkage at 530 deg C. The connectors were made of SAE 4140 Cr-Mo steel. The material for the rod pipes was Fe-0.4C-1Mn steel. Structural stresses played a role in the cracking. Iron sulfide formed on the fracture planes and flake-like stress cracks occurred in the steel. The hydrogen sulfide content of the gas...
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Member Sign InFriedrich Karl Naumann, Ferdinand Spies, Damage to Tool Joints in Hydrogen Sulfide-Carrying Natural Gas Drilling Operation, ASM Failure Analysis Case Histories: Oil and Gas Production Equipment, ASM International, 2019, https://doi.org/10.31399/asm.fach.petrol.c9001179
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