Regional Exploration Assessment for the Late Devonian Kakisa Formation, Northern British Columbia

The Late Devonian Kakisa Formation of northeastern British Columbia, Canada is a high energy, aggradational, discontinuous carbonate bank complex that is composed of three distinct allocycles designated the “Upper”, “Middle”, and “Lower” Kakisa. The study region includes a 5500 square mile area across which the Kakisa was studied to evaluate the nature and distribution of facies and determine their relationship to reservoir quality and occurrence. Data integrated into the study include detailed description of core from seven wells, and 239 well logs correlated within a grid of 33 cross sections. Gamma ray logs are particularly useful in differentiating Kakisa intervals that accumulated in low energy, “off-bank” (relatively higher gamma ray activity and higher overall porosity) and high energy, “on-bank” (relatively lower gamma ray activity and lower overall porosity) marine settings. Potentially gas-charged reservoir is only associated with “on-bank” stromatoporoid reef complexes observed within the Upper and Middle Kakisa. Reservoir bodies are isolated within the eastern portion of the study area, and coincide with north-trending, high-energy carbonate banks.

AAPG Search and Discovery Article #90142 © 2012 AAPG Annual Convention and Exhibition, April 22-25, 2012, Long Beach, California