The Grégoire Lake In-Situ Steam Pilot (GLISP) was the first steam foam flood performed in Athabasca. The recovery process developed at GLISP used inherent reservoir characteristics to advantage. Inter-well communication was established in an upper zone of low oil saturation. Steam diversion using in-situ foam was then used to successfully mitigate steam override to that zone. Foam injection improved oil production by as much as 100%. Additional testing was performed to optimize surfactant and steam injection rates. This paper presents results of the steam foam testing, and is a case history follow-up of SPE 19690. GLISP production, injection and reservoir temperature profiles are used to outline the results of the steam foam diversion process.

Keywords:
surfactant, production well, stimulation, communication, enhanced recovery, steam diversion, saturation zone, steam foam diversion process, upstream oil & gas, foam
Subjects:
Improved and Enhanced Recovery, Thermal methods
Copyright 1991, Society of Petroleum Engineers
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