The Importance of Rheology in the Determination of the Carrying Capacity of Oil-Drilling Fluids
The ability of a drilling fluid to convey drill cuttings from a well is not fully understood and this is particularly so in the case of highly deviated wells where difficulties are frequently experienced in cleaning the hole. The cuttings travel with a lower velocity than the drilling fluid and they can accumulate in the well bore. If this is not kept to a minimum then this can either lead to degradation of the cuttings or the drill string may get lodged in the hole. This study forms the first part of a long term project, sponsored by International Drilling Fluids, to understand and predict the carrying capacity of oil drilling muds.
KeywordsDrag Coefficient Well Bore Drill String Fourth Order Partial Differential Equation Normalise Drag Coefficient
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