Print this pageInterpretation of a Fractured Dolomite Core: Margaree F-70, Deep Panuke, Nova Scotia, Canada
Rick Wierzbicki1, Keven Gillen2, Rolf
Ackermann3, 
Nancy
Harland1, and Leslie Eliuk4
1 EnCana Corporation, Calgary, AB
2 Vox Terrae International, Vancouver, BC
3 Beicip Inc, Houston, TX
4 GeoTours Consulting Inc, Calgary, AB
The purpose of this presentation is to show the facies, diagenesis, and fracture interpretation of the fractured and dolomitized margin of the Abenaki carbonate platform at Deep Panuke. Core from F-70, H-08, and PI-1B will be displayed.
The Deep Panuke gas reservoir was discovered in 1999, 250 km offshore of Halifax Nova Scotia. Gas is trapped in dolomite and limestone at the margin edge of the Jurassic aged Abenaki carbonate complex. Analysis of well test data had indicated that platform margin edge wells were connected to a highly permeable reservoir, assumed to be fractured or vuggy dolomite/limestone.
In 2004, data was obtained on the high permeability reservoir, when 24 meters of core was recovered from the F-70 well bore. The F-70 core encountered foreslope and reefal limestone and fractured vuggy dolomite in the upper portion of the reservoir. The core was examined and facies described in detail by Les Eliuk. Thin sections were examined and a diagenetic interpretation provided by Jeff Dravis.
The core and associated FMI image from F-70 was interpreted by Kevin Gillen. His interpretation of the fracture system and fracture and bedding interpretation of the FMI data by HEF Petrophysical were used by Rolf Ackerman (Beicip Inc.) to build a discrete fracture network model of the reservoir. The parameters and insights gained have been used to constrain the flow simulation model of the reservoir.
AAPG Search and Discovery Article #90039©2005 AAPG Calgary, Alberta, June 16-19, 2005