A three-dimensional simulation model was developed to determine the production response to steam stimulation and steam displacement in a massive (285′), steeply dipping (40–60°) reservoir that contained an undersaturated zone. Because recoveries from this reservoir were expected to be good under steam stimulation due to gravity drainage effects, an investigation was made to determine the relative advantage of steam displacement over conventional steam stimulation, A numerical model was developed to analyze the production response to various pattern configurations, injector locations, and injection rates. The model was also used to examine changes in fluid saturations, temperature and pressure profiles and sweep efficiencies as a result of changes in operations during the life of the project.

Keywords:
pattern configuration, upstream oil & gas, efficiency, steam-assisted gravity drainage, enhanced recovery, displacement, recovery, reservoir, injector, potter sand
Subjects:
Improved and Enhanced Recovery, Thermal methods
Copyright 1981, Society of Petroleum Engineers of AIME
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