Monitoring The Performance of Pembina Nisku Miscible Floods

$2.00

Fletcher Bennett, J.G. Geoghegan,
Esso Resources Canada Limited

1992

Abstract

Fsso Resources Canada Ltd. operates gravity-stable hydrocarbon miscible floods in seven Pembina Nisku pinnacle reefs. All these floods were started between 1982 and 1985 and recovery from the more mature floods has exceeded 50% of original-oil-in place (OOIP). During 1989 a number of infill wells were drilled to main- tain productivity and reduce solvent coning. Open hole gradi- omanometer logs were run in these wells to determine gas, solvent, oil and water contacts. Previous cased hole contact logging had been unsuccessful and these infill wells afforded an opportunity to assess the progress of the miscible floods with open hole contact logs.

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