CHEMICAL, HYDRODYNAMIC, AND METALLURGICAL FACTORS IN WEST SIBERIAN OIL PIPELINE CORROSION FAILURE

摘要

Various factors control the rate and character of the corrosion in pipelines handling three-phase gas-liquid mixtures, of which the main ones are hydrodynamic, chemical, and metallurgical. The first two have been examined in the main detail. The first incorporates the effect on the corrosion from the speed of the gas-liquid mixture GLM and the structure of it, while the second represents the effects of the medium, including the tendency to produce solid deposits. The structural forms of the GLM are usually considered relative to a gas-liquid system, but for the oil industry, it is equally important to consider how the oil and water in a pipeline move one relative to another. When they move together, the flow speed and water content control whether one gets an emulsion of the type of water in oil or of oil in water, and also the stratification, when the oil and water move as separate phases.