TY - JOUR AU - Escobar, Freddy-Humberto AU - Vega, Laura-Jimena AU - Bonilla, Luis-Fernando PY - 2012/11/30 Y2 - 2024/03/28 TI - Determination of well-drainage area for power-law fluids by transient pressure analysis JF - CT&F - Ciencia, TecnologĂ­a y Futuro JA - CT&F Cienc. Tecnol. Futuro VL - 5 IS - 1 SE - Scientific and Technological Research Articles DO - 10.29047/01225383.214 UR - https://ctyf.journal.ecopetrol.com.co/index.php/ctyf/article/view/214 SP - 45-56 AB - <p>Since conventional oil is almost depleted, oil companies are focusing their efforts on exploiting heavy oil reserves. A modern and practical technique using the pressure and pressure derivative, log-log plot for estimating the well-drainage area in closed and constant-pressure reservoirs, drained by a vertical well is presented by considering a non-Newtonian flow model for describing the fluid behavior. Several synthetic examples were presented for demonstration and verification purposes.<br>Such fluids as heavy oil, fracturing fluids, some fluids used for Enhanced Oil Recovery (EOR) and drilling muds can behave as either Power-law or Bingham, usually referred to as the non-Newtonian fluids. Currently, there is no way to estimate the well-drainage area from conventional well test analysis when a non-Newtonian fluid is dealt with; therefore, none of the commercial well test interpretation package can estimate this parameter (drainage area).</p> ER -