Exploration Potential

FIGURE: 10

Parcel 1 is surrounded on three sides with a combination of producing gas fields, significant gas discoveries, and wells with gas shows (Figure 10). Most of the hydrocarbon reservoirs are found in the Missisauga formation, with others in the overlying Logan Canyon formation. The best are found at the top of the Missisauga formation, being composed of thick packages of stacked fluvial and strandplain successions as encountered in the North Triumph field, currently under production.  These Missisauga reservoirs are sealed by the regional marine shales of the Naskapi member, Logan Canyon formation (Figure 4).

FIGURE: 4

The prospects in and around Parcel 1 are defined as anticlinal structures having dip closure on two to three sides and bounding faults to the north, and sometimes the south. Reservoir zones are similar to those of other significant discoveries and the Sable Offshore Energy Project’s producing fields in the Cretaceous Missisauga and Jurassic MicMac formations.  However, this distal paleodelta position will likely limit potential reservoirs to the middle and upper members of the Missisauga formation, and to a lesser extent the overlying lower Logan Canyon formation.

The Triumph P-50 well drilled through the north bounding fault of the Triumph structure and back into the footwall of the North Triumph field.  As a result, the footwall section of the Triumph structure remains unevaluated.  The Triumph structure was later shown to be a low relief saddle possibly connecting the drilled West Chebucto closure to an undrilled feature to the west.  This feature is on depositional strike (northeast-southwest) and down-delta from the highly productive North Triumph field a few kilometres north and east of the Glenelg discoveries. This, combined with the recognized thickening of the Missisauga succession from both seismic and well data, infers that Parcel 1 is in a favourable setting for thick, good quality, gas charged Missisauga and possibly MicMac reservoir sands with potential for overpressure conditions at depth.  An additional, smaller closure is located south of the Triumph structure that is also undrilled.