The productivity of wells with non-perforated completions can be impaired by both mud filtrate invasion and incomplete mud filter cake removal. Well inflow modelling illustrates that the percentage of the interval flowing and the distribution of the flowing intervals, are more important than the filtrate induced permeability reduction around the wellbore. Therefore adequate filter cake removal is essential for optimum well performance. This paper addresses both physical and chemical methods of mud filter cake removal.

Keywords:
drilling fluid property, society of petroleum engineers, enhance productivity, fraction, mud filter cake, cleanup, upstream oil & gas, physical removal, brine, efficiency
Subjects:
Drilling Fluids and Materials, Reservoir Fluid Dynamics, Formation Evaluation & Management, Drilling fluid selection and formulation (chemistry, properties)
Copyright 1994, Society of Petroleum Engineers
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