ASSESSMENT OF CANADAS LIGHT TIGHT OIL RESOURCES Part 1 Oil in Place www.petrelrob.com Worldwide Petroleum Consulting
Definitions Light oil API gravity 30o Tight oil Reservoir cannot produce at economic rates from conventional vertical wellbores Horizontal drilling and multi-stage hydraulic fracturing required for economic production Reservoirs…
Data Sources Federal agencies (GSC / NEB) Provincial agencies (AGS) U.S. Energy Information Administration Technical literature Corporate reports
Oil Resource Calculations Conventional plays statistical techniques, using exploration play definition and analysis of existing pool size distribution GSC - PETRIMES NEB - Risk Unconventional plays are generally continuously…
Canadian Petroleum Basins Northern Interior Platform East Coast Offshore Western Intermontane Interior Cratonic Western Canada Sedimentary Basin Eastern Cratonic Basins GSC Open File 4673
Light Tight Oil Play Classification Established Plays Regionally extensive unconventional plays Significant exploration and development activity All are in Western Canada Sedimentary Basin Established / Isolated Plays As above,…
Established Play Slave Point Swan Hills / Slave Point Fringing Reef Complex (Devonian) Peace River Arch Waterways Shale Basin Regionally extensive carbonate banks and platforms, fringing emergent landmasses Conventional…
Established Play Slave Point Swan Hills / Slave Point Fringing Reef Complex (Devonian) Peace River Arch Waterways Shale Basin No systematic assessment of tight oil in place Existing estimates: 1190 e6m3 (7.5 BBO) for entire…
Bakken (Devonian / Carboniferous) Established Play Tight silt / sandstone encased in organic- rich shales, deposited in extensive open seaway Regional basin- centred accumulation, flanked by conventional traps Intensive…
Bakken (Devonian / Carboniferous) Established Play 3580 e6m3 (22.5 BBO) for Canada (EIA) Where 30 ft thick Shale parameters 795 e6m3 (5 BBO) (CIBC, 2011) 731 e6m3 (4.6 BBO) (Crescent Point, 2011) 36 e6m3 (0.25 BBO) public…
Spearfish (Jurassic) Established Play Sandstone / siltstone red beds, variably cemented by evaporites Widespread floodplain to marginal marine, lying on profound unconformity Conventional strat traps locally, but hz drilling…
Spearfish (Jurassic) Established Play Volumetric upside constrained to large, discrete stratigraphic traps 397 e6m3 (2.5 BBO) (CIBC, 2011) 139 e6m3 (0.88 BBO) (Penn West, on company lands)
Montney (Triassic) Established Play BC Tight siltstone, deposited in AB open marine setting along western flank of craton Downdip, overpressured gas and liquids are regionally prospective, with oil along updip margin…
Rokosh et al., 2012 Established Play Montney Oil in Place NEB (2013) probabilistic values P50: 22484 e6m3 (141.5 BBO) P10: 36113 e6m3 (227 BBO) P90: 12865 e6m3 (80.9 BBO) Dominated by Alberta volumes (Rokosh et al.,…
Established Play Lower Shaunavon (Jurassic) Tight muddy and fossiliferous limestone, locally porous and dolomitized Deposited on broad shallow marine shelf with limited water circulation and little clastic input Discrete…
Established Play Lower Shaunavon (Jurassic) No systematic assessment of tight oil in place 684 e6m3 (4.3 BBO) estimated for entire Shaunavon fairway (Crescent Point, 2014)
Viking (Cretaceous) Established Play Reinson et al., 1994 Thinly-bedded conventional- quality sandstones interbedded with siltstone and shale, producing poor overall reservoir quality Deposited in shallow marine cratonic…
Viking (Cretaceous) Established Play Reinson et al., 1994 No systematic volumetric assessments play fairway is loosely defined 795 e6m3 (5 BBO) cited by CIBC (2011), but basis of calculation unclear Corporate presentations…
Established Play Cardium (Cretaceous) Tight sandstones, deposited in shallow marine / shoreline settings Large oil volumes recovered from conventional vertical wells, but unconventional potential lies in three main settings:…
Established Play Cardium (Cretaceous) NEB (2011): 1678 e6m3 (10.6 BBO) for entire Cardium 159 477 e6m3 (1-3 BBO) for fringe / halo accumulations Corporate estimates generally 2.5 - 6 MMBOIP per section on their prospective…
Established Isolated Plays Charlie Lake (Upper Triassic) Sub-regional uppermost Charlie Lake (Worsley Mbr) Variably-cemented, marginal marine sandstones, capped and sealed beneath post-Triassic unconformity Systematic horizontal /…
Emerging Play Duvernay (Devonian) Organic-rich shale with interbedded calcareous shale / limestone Deposited in deep marine anoxic basin Major source rock with clearly- defined areas of oil- and gas- generative capacity…
Rokosh et al, 2012 Emerging Play Duvernay Oil in Place Rokosh et al (2012) probabilistic values P50: 9803 e6m3 (61.7 BBO) P10: 13171 e6m3 (82.9 BBO) P90: 7004 e6m3 (44.1 BBO) EIA (2013) 10620 e6m3 (66.8 BBO) Is…
Alberta Bakken (Devonian / Carboniferous) Emerging Play Multi-cycle complex of organic-rich shale, tight sandstone, and tight carbonate Original play concept focused on over- pressured Exshaw Modeled on Bakken production to…
Horn River (Devonian) Potential Play Organic-rich shale with calcareous and silty intervals Deep marine anoxic basin; northern extension of Gross thickness, Horn River Group Duvernay / Muskwa fairway Major source rock with…
Rokosh et al, 2012 Potential Play Muskwa Oil in Place Rokosh et al (2012) probabilistic values P50: 18296 e6m3 (115 BBO) P10: 25418 e6m3 (160 BBO) P90: 11884 e6m3 (74.8 BBO) EIA (2013) 6740 e6m3 (42.4 BBO) EIA applied…
Other Light Tight Oil Plays Northern Interior Platform East Coast Offshore Western Chinkeh Intermontane Ordovician Nordegg shales Second White Specks Macasty GSC Open File 4673
Light Tight Oil Summary Huge oil-in-place potential exists in several plays: 8 established 2 established / isolated 3 emerging 5 potential Only a few plays have been analyzed systematically Play definition, geographic limits, and…
Light Tight Oil Summary Defining light tight oil plays depends upon large data sets All established plays are in WCSB Northern interior platform, cratonic basins, and eastern onshore and offshore basins have light tight oil…
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