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Progress Energy
Winter 2010/2011 |
Bids Due: Jan. 17, 2011 |
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Primary Contact: 403-299-8453
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Introduction Letter | Foreward & Disclaimer | Asset Sale Overview Fort St. John North: Overview | Beaverdam | Currant | Minor Properties Fort St. John South: Overview | Two Rivers | Stoddart | West Eagle | Flatrock | Teal Ojay: Overview | Area Activity | Nikanassin Development Potential | Cadotte/Falher Development Potential Copton: Overview | Geology & Area Activity | Cardium Development Potential | Cadotte Development Potential Two Creek: Overview | Jurassic 'A' and 'B' Pools | Jurassic 'A' Pool - ASP Upside Potential | Gething |
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FORT ST. JOHN NORTH - CURRANT
FORT ST. JOHN NORTH - CURRANT HIGHLIGHTS
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CURRANT GEOLOGY
There are several productive and prospective intervals in the Currant area including the Bluesky, Gething, Charlie Lake, and Halfway Formations.
Bluesky Formation: In the Currant area, the Lower-Cretaceous Bluesky Formation was deposited in an east/west trending shoreline to shallow shelf environment. The Bluesky is overlain by shales of the Spirit River Formation. A transgression during the Lower Cretaceous time resulted in a gradational contact between the Bluesky and the underlying Gething Formation.
In the area, the Bluesky Formation consists of thin sandstone and conglomerate reservoirs with porosities ranging up to 15%. The Bluesky is at a depth of ~1,030m and has a gross thickness of ~10m in the Currant area.
Gething Formation: In the Currant area the Lower Cretaceous Gething Formation is between 20 and 30m thick and is comprised of fluvial to deltaic deposits. The distributary channel systems of the Gething can be up to 10m thick and in some places completely infill the underlying deltaic units. Variable channel fill and the complex cross-cutting nature of the channels makes the Gething a very heterogeneous reservoir package that is difficult to correlate over large areas. The reservoir facies are typically fining upwards channel sandstones with porosities up to 20%.
Halfway Formation: The Middle Triassic Halfway Formation overlies the Doig Formation and is conformably overlain by the Charlie Lake Formation. The Halfway was deposited as prograding barrier island shoreface complexes that were reworked by tidal channels. Coarsening-upwards, lower-shoreface sands are stacked and overlain by barrier-island and upper-shoreface sands in British Columbia.
Isolated sand bodies are typically seen eastward to the Alberta border.
Halfway reservoir sands range from 5-10m thick in the Currant area and have porosities as high as 24%. In this area, the Halfway is found at depths of ~1,200m.
CURRANT DEVELOPMENT POTENTIAL
Bluesky Formation: A re-completion targeting the Bluesky Formation has been identified in the b-097-K/094-A-09 well (see log on this page). Petrophysical attributes of the zone are correlative to that of the offset well (c-087-K/094- A-09), which has produced 0.8 Bcf of gas from the Bluesky since 2005 and is currently producing 417 Mcf/d from the Gething Formation (Aug. 2010).
Gething Formation: Five Gething gas locations have been identified. Three of these locations are Probable Additional reserves with 127 Mboe assigned and initial production of 54 boe/d. In the Currant area, Gething first month production has been as high as 2,400 Mcf/d (as seen in the a-098-K/094-A-09 well).
Halfway Formation: There is potential to reactivate the b-009-C/094-A-16 well, which is completed in the Halfway Formation. This well has produced 621 MMcf of gas and 102 Mbbl of oil and liquids to date. When suspended in 2004, the well last produced 83 Mcf/d of gas and 6 bbl/d of oil. The well was suspended in order to re-complete the Gething Formation.