PRESSURE DISTRIBUTION OF A HORIZONTAL WELL IN A BOUNDED RESERVOIR WITH CONSTANT PRESSURE TOP AND BOTTOM
Keywords:
Bounded, reservoir, steady-state conditions, horizontal well, constant pressure.Abstract
The purpose of this study is to develop a mathematical model using Source and Green’s functions for a Horizontal Wells in a Bounded Reservoir with Constant Pressure at the Top and Bottom for the interpretation of pressure responses in the reservoir based on dimensionless pressure and pressure derivative. Reservoir and well parameters investigated revealed what sets of reservoir/ well parameters combination that will prolong infinite activity of the reservoir before steady state sets in. Results show that dimensionless lateral extent does not directly affect the dimensionless pressure and dimensionless pressure derivative for very short well lengths as used in this paper. Dimensionless pressure increases with reservoir pay thickness and delay the time for steady state conditions. In fact external fluid invasion is strongly affected by the size of the pay thickness, thus the minimum time for steady state period to set is according to the relation TD ? LD/5.
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