01782nab a2200193 4500 20260520001758.0 260224s2009 xxu Diagnosis of reservoir compartmentalization from measured pressure/rate data during primary depletion dic. 2009 17/06/2010 ; 17/06/2010 12 p. ; 271-282 Transcripción del resumen del autor. This paper presents a simple diagnostic tool to identify reservoir flow behavior from a Cartesian pressure/rate graph during primary production. Some of the benefits of the proposed tool are its simplicity without requiring any calculations, leading to understanding of reservoir compartmentalization and application of an appropriate material-balance technique. Data diagnosis entails graphing pressure with rate and discerning trends; positive slope signifies the pseudosteady-state (PSS) flow period, whereas the negative slope implies infinite-acting (IA) flow. Constant-rate production exhibits infinite slope whereas constant-pressure production produces zero slope. Mathematical justifications for these diagnostic signatures are presented. During PSS flow, wells belonging to the same container will exhibit the same slope. Differences in slope are an indication of reservoir compartmentalization, lateral or vertical. Equally important we provide mathematical proof of why different wells in a multiwell reservoir system should have the same slope. Field examples from multiple gas and gas/condensate systems show how the proposed tool works in practice. 3-4 Journal of Petroleum Science & Engineering 69 ARTICULO Izgec, B. 42917 Kabir, C.S. 15994 171147 171147 0 0 0 0 238966 BAAB BAAB 2026-03-05 200046005 0 200046005 2026-03-05 15:13:31 2026-03-05 ARTICULO