Conclusions and Recommendations
The straight line method for solving the material balance equation introduces a
dynamic aspect to the interpretation of individual points, contrasting with
conventional methods that often treat each point separately or through
averaging techniques.5 and 6 outline a method for calculating the interference correction factor.Hence, the
accurate plotting and analysis of these points are crucial for insightful
interpretation.While theoretically applicable to all cases, the straight line method has
encountered limited success in specific scenarios, such as reservoirs without
water drive and those with a known gas cap.Furthermore, once these points
are identified for exclusion, they must be consistently omitted from all
subsequent analyses.The straight-line equation to be plotted in such a case is
F + Correction for interference /Eo = N + C ?p Q ?td /Eo
Refs.With the straight line method, emphasis is placed on the
dynamic sequence of plotted points and the resulting plot's shape.Moreover, the presence of pressure derivatives in water-driven
reservoirs necessitates exceptionally precise data.Exceptional accuracy in basic data,
particularly pressure measurements, is essential when dealing with gas cap
reservoirs.This may result from inaccuracies in early average production-
pressure-PVT data or due to the delayed impact of pressure-production effects
on the entire active oil-in-place volume.