Abstract
ABSTRACT A Layer Pulse Test1 was designed, implemented and analyzed in a pinnacle reef in Alberta. Two Repeat Formation Tester (RFT)* surveys were performed in the observation well at a pre-designed interval. The second RFT survey was performed after the pulsed well was put back on production. The design was based on an older, history-matched model of the reef. A geological and stratigraphic interpretation was performed to update the geological and the numerical model. Subsequently, a three-dimensional, three-phase, single equation numerical simulator2 was used to model the inter-well area and a history match was obtained to the pressure shift in the two RFT surveys. The vertical pressure profiles from the RFT surveys identified barriers to vertical flow while the geological interpretation and the history match to the pressure shift provided a quantitative distribution of horizontal and vertical permeabilities in the inter-well area.
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