Diagenetic history of Ordovician and Devonian oil ... - Geology Ontario

DIAGENETIC HISTORY OF ORDOVICIAN AND DEVONIAN
OIL AND GAS RESERVOIRS IN SOUTHWESTERN ONTARIO
AUTHORS: M. CONIGLIO AND S.K. FRAPE
Department of Earth Sciences
University of Waterloo
Waterloo, Ontario N2L 3G1
Enclosed is the final report for Ontario Geoscience Research Grant no. 353. The
report is in the form of two completed M.Sc. theses written by:
1) Kathy Middleton: "FRACTURE RELATED DIAGENESIS OF MIDDLE
ORDOVICIAN CARBONATE RESERVOIRS, SOUTHWESTERN ONTARIO")
(Appendix A), and
2) Gene Duncan Hamilton: "STYLES OF RESERVOIR DEVELOPMENT IN MIDDLE
DEVONIAN CARBONATES OF SOUTHWESTERN ONTARIO" (Appendix B)
Middleton's research was supervised by both Coniglio and Frape. Hamilton's research was
supervised by Coniglio.
The theses have met all of the objectives outlined in our original research proposal
for a detailed examination of the diagenetic history of Ordovician and Devonian oil and gas
reservoirs in southwestern Ontario. These studies integrate core examination, petrography
and geochemistry and provide new insight on the origin of economically important
secondary porosity and the timing, source and migration pathways of diagenetic fluids.
These studies will provide the basis for further detailed work making broader comparisons
of regional diagenetic trends in the various carbonate units of southwestern Ontario and will
be integrated into ongoing studies of formation waters in the region.
The authors appreciate the funding awarded through the OGRG program. The grant
provided the bulk of the financial support for these projects. Middleton's research was also
supported by our individual NSERC operating grants as well as a Texaco Canada
Resources Grant. Hamilton's research was also supported by Coniglio's NSERC operating
grant.