Bitumen Production Potential from the Wabasca Grand Rapids Formation Deposit

Paper Number: 2008-453

Authors: Jeff Peterson, Marnie Connelly, Neil Edmunds - Laricina Energy Ltd.

Source: Presented at the World Heavy Oil Congress March 10 – 12, 2008 – session theme “Heavy Oil Exploitation & Development”

Copyright: Copyright 2008, Petroleum Society of CIM

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This paper provides a description of Laricina Energy’s proposed thermal project in the Grand Rapids Formation in the Wabasca area of Northeastern Alberta in and around Township 84-22W4M.

The Grand Rapids Formation comprises the upper part of the regressive Upper Mannville Group and consists of multiple thick sandstones. The Grand Rapids is a regional marine deposit occurring at 200 metres average depth. Its unique features – clean sand with homogeneous and continuous reservoir pay – increase the predictability and consistency of the reservoir. In much of the development areas there is a thin bottom water leg of varying thickness.

The project will utilize SAGD technology on the initial development and investigate recovery potential using innovative reservoir optimization and exploitation strategies. Some of these strategies include modifying placement of wells and cycling of steam injection rates throughout the life of the well to optimize the supply cost per barrel. These strategies were developed by implementing a genetic algorithm to optimize well operation parameters in a thermal reservoir simulator.

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