The characteristics of a gas pipeline in the presence of hydrate deposits

The paper deals with the flow of a wet hydrocarbon gas in a pipeline, which is accompanied by the process of gas-hydrate deposition (sclerosis) on the internal surface of the pipeline. The pipeline sclerosis may occur in two ways, namely, under conditions of thermal balance and under conditions of water deficit. In so doing, in the initial region behind the pipeline cross section in which the condition of gas-hydrate formation sets in, the process of deposition exhibits the former pattern. The hydrate formation causes the flow depletion of water and, as a result, starting from some cross section, the pipeline sclerosis takes the latter pattern.