This paper presents a study of pressure buildup behavior of partially completed wells intercepting layered reservoirs. We present correlations for estimating skin due to partial penetration for homogeneous and layered systems with contrasting layer permeabilities. We demonstrate the correct procedure for analyzing buildup tests from partially completed wells using conventional type curve analysis methods.

Using an automatic history matching approach, we present a field example application of the analytical model and the developed correlations.

Keywords:
boundary condition, analytical model, olarewaju, equation, layered reservoir, type curve, pressure drop, differential equation, upstream oil & gas, buildup data
Subjects:
Reservoir Fluid Dynamics, Formation Evaluation & Management, Flow in porous media, Pressure transient analysis, Drillstem/well testing
Copyright 1989, Society of Petroleum Engineers
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