Experimental Investigation of Surfactant Alkaline Steam Flooding Process

摘要

Continued research and field application of steam flooding have confirmed an early conclusion that the process is a powerful method for reconvering heavy and intermediate gravity crude oils. This experimental study investigates the feasibility of using low concentrated solution of alkaline or surfactant as an additive to steam flooding for water flooded reservoirs. This research is also designed to search for optimization of steam flooding process through recovering additional oil via using a steam with low concentration of alkaline-surfacetant mixture. This process is designed as surfactant alkaline steam flood. To achieve these goals, four flow experiments are conducted as follows: (1) conventional steam flood (SF), (2) surfactant steam flood (SSF), (3) alkaline steam flood (ASF), and (4) low conventional steam flood SASF).