The Baldonnel Formation in the Graham - Birch - Jedney area of northeast British Columbia has major accumulations of natural gas in structural and stratigraphic traps. Oil was discovered at Birch in 1974. Exploitation of reserves in the area is complicated by poor permeability, stratigraphically-zoned porosity development, post-Triassic erosion, Laramide reverse structures and re-activated post-Mississippian normal structures. The geologic complexity of the area causes significant variations in trapping efficiency and capacity.
The objectives of this study are:
• Provide a regional hydrogeologic framework of the Baldonnel Formation in the area.
• Integrate known geology with the hydrogeologic framework.
• Define the distribution of hydrocarbon shows and existing production within the context of effective pool outlines.
• Determine oil/gas/water contacts where possible.
• Characterize formation water composition and areal distribution.
• Characterize the fluid potential field, flow directions and their potential impact on hydrocarbon distribution.
• Suggest prospective areas for future exploration.