About This Item

Share This Item

The AAPG/Datapages Combined Publications Database

CSPG Bulletin

Abstract


Bulletin of Canadian Petroleum Geology
Vol. 39 (1991), No. 2. (June), Pages 224-224

"Sedimentology and Reservoir Quality of the Kiskatinaw Formation, Alberta [Abstract]"

Shawa, M.S.1, Harris, I.M.1

ABSTRACT

The Lower Carboniferous Kiskatinaw Formation extends over a large area in the subsurface of the Peace River region of Alberta and British Columbia. The reservoirs of this formation are prolific gas producers containing high reserves. They are currently the object of intense exploration.

The Kiskatinaw sediments are predominantly tidal deposits laid down in an estuary system affected by macrotidal processes. The recognition of allocyclic and autocyclic subdivisions within the formation facilitate determination of lithofacies distribution. The principal reservoirs are quartz-rich sandstones, characterized by the development of secondary porosity. In general, porosity and permeability are low and commonly vary dramatically from place to place over short distances. Subdividing the Kiskatinaw rocks into parasequences and separately mapping and modelling each parasequence greatly facilitates an understanding of reservoir distribution within the formation.

Formation damage is a major problem in the Kiskatinaw and is attributed largely to the presence of interstitial clay introduced by the action of tidal currents, soil-forming processes, and diagenesis. Chemical reactions between introduced fluids and carbonate, sulphate, and sulphide cements further promote formation damage. A thorough understanding of the physical and chemical properties of both pore-lining minerals and framework grains is vital in planning reservoir treatments that minimize damage and enhance reservoir yields.

End_of_Record - Last_Page 224-------

ACKNOWLEDGMENTS AND ASSOCIATED FOOTNOTES

1 Shawa Geoconsultants Ltd., Calgary, Alberta T2P 3N3

Copyright © 2003 by The Society of Canadian Petroleum Geologists. All Rights Reserved.