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.
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