Flow-related corrosion in large-diameter multiphase flowlines
- BP Engineering, Uxbridge (United Kingdom)
- BP Exploration (Alaska) Inc., Anchorage, AK (United States)
- BP Research Inst., Houston, TX (United States)
A strong relationship between field measurements of flow regime and corrosion rate has been found. In multi flow, the slug flow regime produces high liquid velocities and high inherent turbulence levels for significant periods. The exact mechanism for removing a corrosion-inhibitor film from a pipe wall or preventing the film from forming remains unclear, but high turbulence and wall shear stresses always are present when flow-related corrosion occurs. The levels of wall shear stress may be estimated for a variety of pipeline features when subject to a passing slug. This provides a basis for realistic corrosion-inhibitor trials in the laboratory and a means of relating this information to field conditions. The onset of slug flow may be predicted to identify those times when a flowline may be especially at risk.
- OSTI ID:
- 6021082
- Journal Information:
- SPE Production and Facilities (Society of Petroleum Engineers); (United States), Journal Name: SPE Production and Facilities (Society of Petroleum Engineers); (United States) Vol. 8:2; ISSN 1064-668X; ISSN SPRFEZ
- Country of Publication:
- United States
- Language:
- English
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BENCH-SCALE EXPERIMENTS
CHEMICAL REACTIONS
CORROSION
CORROSION PROTECTION
CORROSION RESISTANCE
CORROSIVE EFFECTS
ENERGY SOURCES
FLOW MODELS
FLUID FLOW
FLUIDS
FOSSIL FUELS
FUEL GAS
FUELS
GAS FUELS
GASES
MATHEMATICAL MODELS
MULTIPHASE FLOW
NATURAL GAS
PETROLEUM
PIPELINES
SHEAR
STRESS ANALYSIS
TURBULENT FLOW