METHODS CALCULATE AREA DRAINED BY HORIZONTAL WELLS

09/17/1990
S.D. Joshi Joshi Technologies International Inc. Tulsa The drainage area of a horizontal well can be calculated by averaging the results obtained from two different methods. For anisotropic reservoirs, nonuniform permeability has to be included in drainage area calculations. WELL SPACING Horizontal wells, in general, give higher reserves than vertical wells. Two reasons for obtaining higher ultimate reserves are increase in the drainage area and increase in the recovery factor. The most important reason for obtaining higher ultimate reserves from horizontal wells is the significant enhancement of the drainage area...
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