On the evaluation methods of Ni-base corrosion resistant alloy for sour gas exploration and production
Conference
·
OSTI ID:5628024
The effect of Cr, Ni and Mo contents of Ni base alloy on the corrosion behaviour in H/sub 2/S-CO/sub 2/Cl/sup -/ environment sulfur at elevated temperature was investigated. The environmental with elemental sulfur was more corrosive than that without elemental sulfur. The stress corrosion cracking resistance of Ni base alloys increases with increasing Ni and expecially Mo contents. The main effect of the elemental sulfur is considered that the generation of H/sub 2/S due to the cathodic reaction of elemental sulfur at a location underneath sulfur deposition which is related to the viscosity of elemental sulfur. Recommendable chemical composition of Ni base alloys in H/sub 2/S-CO/sub 2/Cl-S environment was proposed from the view points of phase stability, stress corrosion cracking and hydrogen embrittlement. Suitable high Ni alloys had more than 12%Mo and 15%Cr and the phase stability parameter (md) value below 0.911.
- OSTI ID:
- 5628024
- Report Number(s):
- CONF-880314--
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
03 NATURAL GAS
030300* -- Natural Gas-- Drilling
Production
& Processing
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHLORINE
CORROSION
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HALOGENS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
NATURAL GAS
NATURAL GAS WELLS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
STRESS CORROSION
SULFIDES
SULFUR
SULFUR COMPOUNDS
WELLS
030300* -- Natural Gas-- Drilling
Production
& Processing
36 MATERIALS SCIENCE
360105 -- Metals & Alloys-- Corrosion & Erosion
ALLOYS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CHALCOGENIDES
CHEMICAL COMPOSITION
CHEMICAL REACTIONS
CHLORINE
CORROSION
CORROSION RESISTANCE
CORROSION RESISTANT ALLOYS
CORROSIVE EFFECTS
ELEMENTS
ENERGY SOURCES
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
HALOGENS
HYDROGEN COMPOUNDS
HYDROGEN SULFIDES
NATURAL GAS
NATURAL GAS WELLS
NICKEL ALLOYS
NICKEL BASE ALLOYS
NONMETALS
OXIDES
OXYGEN COMPOUNDS
STRESS CORROSION
SULFIDES
SULFUR
SULFUR COMPOUNDS
WELLS