thicker sand in lower shoreface: facies 2a distal...

4
Thicker Grani Below BHL Sandst xemplified by Cored Well 8 Erosional Boundary Between th Tw BHL SST over Structural High? ND cturally /Deeper ? Greater ccomodation Space for Two Cycles? Two L-M Shoreface Cycles in This Area Conceptual Only: Longshore/Shoreface Bars; Orientation Unknown, Assumed NE-SW Two L-M Shoreface Cycles Amalgamated, With Pebble Lag Between Lee-Side Embayment Offshore T ‘Anch to Struc Asymmetr Shoreface Bar? Middle Over Lower Shoreface to 2.3 m: Facies 2A, 2B Variable General (to ≈ 1.5 Offshore Facies 1 Multiple Internal Erosional Events in BHL SST Beaverhill Lake Sandstone Oil Play Peace River Arch – Northwestern Alberta Large Reserves & High Productivity Potential By-Passed Pay Zones A Significant Under-Explored Light Oil Play The Devonian section along the southern margin of the Peace River Arch has historically been explored for reservoirs ranging from Granite Wash to Wabamun. Galleon Energy and others have recently obtained astonishing light oil rates of thousands of boe/d at Puskwaskau from under-explored sands in the Beaverhill Lake Group, where most exploration has focused on Slave Point carbonate reefs. These sands are interbedded in the overlying Waterways argillaceous limestone and shale section, and have been systematically explored only since the first significant light oil discovery at Girouxville in 1998. The potential of these conventional stratigraphic reservoirs has been long overlooked, but is now the object of increasing industry attention, motivated by oil scarcity and associated record prices. The Beaverhill Lake Sandstone study includes detailed correlation sections, regional and local mapping, pool analysis, bypassed pay appraisal, depositional framework and detailed stratigraphic assessments leading to environments of deposition and reservoir prediction. The depositional model was developed by Graham Davies of GDGC. Graham has wide experience with both sandstone and carbonate reservoir facies in Canada and internationally. Detailed core descriptions are an integral part of the study. The geological model has been further enhanced by seismic data. The Klesk/Puskwa template, supplied by SilverTip Surveys Ltd., has survey lines across Galleon Energy’s new discovery at Puskwa. The Girouxville template survey, supplied by Breaker Energy Ltd., provides additional insights in the Girouxville area. Image above: Excerpt from schematic facies diagram Canadian Discovery Ltd.

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A

A'

Thicker Granite Wash-like Sands

Below BHL Sandstone Sequence.

Exemplified by Cored Well 8-15-78-23W5

With Erosional Boundary Between the Two Sands.

Amalgamated

Two Cycles?

BHL SST over G

R Wash-lik

e ?

StructuralHigh?

?

?

?

Lower Shoreface

Asymmetrical Shoreface Bar, As Responseto NE to SW Longshore Drift

(schematic only)SW NE

Longshore DriftLongshore DriftMiddle

Shoreface

Offshore Transition

Offshore

F.2B

F.1BF.1A

F.2A

F = FaciesSubtle Structural

Control ?

ND

ND

ND

ND

ND

ND

ND

Structurally

Low/Deeper ?

- Greater

Accomodation

Space for

Two Cycles?

Two L-MShoreface

Cyclesin This Area

Conceptual Only:

Longshore/Shoreface

Bars; Orientation

Unknown, Assumed

NE-SW

Two L-M ShorefaceCycles Amalgamated,With PebbleLag Between

Increasing OpenMarine Influence:

Increasing Bioclasts- Crinoids, Brachs -

in Lower/MiddleShoreface Sands

Variable/ThickerSands Below

BHL SST Sequ.Eg.

Thicker Lower-Middle Shoreface: Facies 2A, 2BAsymmetricShoreface

Bar?

Thin, VariableOffshoreTransition:Facies 1B

Probable Offshoreto Thin OffshoreTransition:Facies 1A, 1B

Lee-Side Embayment

Distal Offshore

Distal Offshore

Distal Offshore

Offshore Transition± Thin Lower Shoreface

‘Anchored’to Structural

High

AsymmetricShorefaceBar?

Middle Over Lower Shoreface to 2.3 m: Facies 2A, 2B

Variable,Generally Thicker(to ≈ 1.5m)Offshore TransitionFacies 1B

Multiple InternalErosional Eventsin BHL SST

Eroded/Thinned Offshore Transition(Facies 1B): Eroded BelowRSME* at Base of Upper

Shoreface (Facies 3)

Thin Offshore/Offshore Transition:Facies 1A, 1B

Westward Increase in ThinSandstone Event Bedsof Offshore Transition: Facies 1B

Thicker sand in Lower Shoreface: Facies 2A(60 cm)

Inferred Longshore(Wind-wave) DriftDriven by NE Trades

*RSME: Regressive Surfaceof Marine Erosion

N

S

W EProjected System

DatumCentral Meridian

1:130,000

Schematic summary of offshoreto lower and middle shorefacesands of the BHL sandstone sequencein the Gerouxville East-Normandvillearea (Facies 1A, 1B, 2A, 2B)Structural high in 18-78-21W5appears to have influencedshoreface sedimentation. Longshoredrift is inferred to have been a majortransport and deposition mechanism

ND: No well data > 4 sections

Study or Project Name

Fig. 27

Project:

File Name:

Last Edited:

Copyright © 2007 Canadian Discovery Ltd. All Rights Reserved.24 23 22 21 20 19W5

78

77

76

75

79

Canadian DiscoveryLtd.

Beaverhill Lake Sandstone Oil PlayPeace River Arch – Northwestern Alberta

� Large Reserves & High Productivity Potential

� By-Passed Pay Zones

A Significant Under-Explored Light Oil Play

The Devonian section along the southern margin of the Peace River Arch has

historically been explored for reservoirs ranging from Granite Wash to Wabamun.

Galleon Energy and others have recently obtained astonishing light oil rates of

thousands of boe/d at Puskwaskau from under-explored sands in the Beaverhill

Lake Group, where most exploration has focused on Slave Point carbonate

reefs. These sands are interbedded in the overlying Waterways argillaceous

limestone and shale section, and have been systematically explored only since

the first significant light oil discovery at Girouxville in 1998. The potential of these

conventional stratigraphic reservoirs has been long overlooked, but is now the

object of increasing industry attention, motivated by oil scarcity and associated

record prices.

The Beaverhill Lake Sandstone study includes detailed correlation sections, regional

and local mapping, pool analysis, bypassed pay appraisal, depositional framework

and detailed stratigraphic assessments leading to environments of deposition and

reservoir prediction. The depositional model was developed by Graham Davies

of GDGC. Graham has wide experience with both sandstone and carbonate

reservoir facies in Canada and internationally. Detailed core descriptions are an

integral part of the study. The geological model has been further enhanced by

seismic data. The Klesk/Puskwa template, supplied by SilverTip Surveys Ltd.,

has survey lines across Galleon Energy’s new discovery at Puskwa. The Girouxville

template survey, supplied by Breaker Energy Ltd., provides additional insights

in the Girouxville area.

Image above: Excerpt from schematic facies diagramCanadianDiscoveryLtd.

Study DetailsStudy Area T. 69–83, R. 15W5–5W6

Key Statistics

Wells in Database 813

Detailed Core Descriptions 41

Thin-Sections 40

XRD Analyses 2

Fluid Inclusion Analyses 2

Technical Illustrations 76

Regional Cross-Sections 8

GIS Maps 21

Montages 2

Study Objectives

� Develop a depositional model for the Beaverhill

Lake sand

� Determine reservoir thickness and distribution

� Determine prospective play fairways and build a

framework for prospect generation

Study Applications

Subscribers will be able to utilize this report for mineral

rights acquisition, for project and resources planning

and for prospect generation.

Images, clockwise from top: Sample core description. Aeromagnetic map. Reference log. Waterways-BHL sandstone boundary with transgressive marine lag of tabular stroms, crinoids and brachiopods in an argillaceous host.

Images, left to right: Beaverhill Lake sand stratigraphy. Medium-grained feldspathic sandstone (subarkose) with selectively leached K feldspars (arrows).

200 m

200 m

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T73

T69

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T83

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R20R25 R15W5R1W6R5

R11W5R16R21R1W6R6

Girouxville East Play

Kleskun Play

Puskwaskau Play

6-32 'show' 1100 bopd

400 bopd 1375 boepd35 bopd

25 bopd

avg 193 bopd

avg 163 bopd

avg 187 bopd 221 bopdGirouxville Play

Normandville Play

SNIPE LAKE

PEACE RIVER ARCH

Seeker 2004

Devon 2002

Duvernay 2003

Galleon 2006

Galleon 2006

Galleon 2005

Girouxville Template Survey

Klesk / Puskwa Template Survey

Beaverhill Lake Sand Play Fairway

Beaverhill Lake Oil Completion

Duvernay to Precambrian Isopach (m)Contour Interval = 20 m

J

Deliverables (Hard Copy and Digital)

Technical Report

� Comprehensive technical report

� Technical illustrations including macro and thin-section

photos, schematic maps and cross-sections, reference

logs, log cross-plots and diagenetic-related schematics

� Digital database of tops, isopachs and reservoir

characteristics

GIS Maps

� Beaverhill Lake Sandstone pool map

� Database maps – core data, production, perfs, DSTs (2)

� Aeromagnetic and Bouguer Gravity maps (3)

� Precambrian, Slave Point, Beaverhill Lake Sandstone and

Waterways structure and trend maps (10)

� Waterways, Slave Point and Granite Wash Isopach maps (3)

� Beaverhill Lake Sand gross sand and net porous sand

isopach maps (2)

Montages

� Schematic core montage

� Play concept montage

Cross-Sections

� Detailed log-core cross-sections (2)

� Regional stratigraphic and structural cross-sections (6

Appendices – Sedimentology

� Detailed core descriptions (41)

� Core photos and descriptions (100’s)

Appendices – Geophysics

� Selected seismic profiles and base map for the Klesk/

Puskwa Template Survey (SilverTip Surveys Ltd.)

� Selected seismic profiles, plots, log and base map for the

Girouxville Template Survey (Breaker Energy Ltd.).

Image above, large: Excerpt from Girouxville seismic line. Above, small: Beaverhill Lake oil completions – areas of activity and initial production rates.

Westcoast et al Girouxville 4-214-21-77-23W5

Dry and Abandoned

Tethys et al Girouxville E 1-61-6-77-22W5

Pumping BHL OilIP: 197 bopd, 187 mcf/d, 116 bwpdPP: 166 bopd, 98 mcf/d, 39 bwpd

Cum: 73 mbbls oil, 43 mmcf gas, 25 mbbls water

Tethys et al Girouxville E 12-3212-32-76-22W5

Pumping BHL OilIP: 193 bopd, 70 mcf/d, 0 bwpd

PP: 480 bopd, 281 mcf/d, 0 bwpdCum: 298 mbbls oil, 152 mmcf gas, 5 mbbls water

A'ANW SE

Formation of the Beaverhill Lake Sand pools at Girouxville started with deposition of clastic sediments into an area where deeper water carbonate sediments were the norm. This illustration depicts what the area might have looked like, but it also suggests the enormous

potential for other prospects around the Peace River Arch.

www.canadiandiscovery.comBHSS-V04-2015.07.16

Contact Client Relations300, 706 – 7 Avenue SW, Calgary AB, T2P 0Z1 T 403.269.3644 E [email protected]

Subscription Details

Study Cost: $37,500

Base price includes the report in both hard copy and digital

formats. GIS files are available for a nominal fee.

Core Workshops

To date, Graham Davies has conducted a number of core

workshops in support of the study. Details and rates are

subject to availability and interest.

Images, top to bottom: Beaverhill Lake sand cross-section. Beaverhill Lake sand depositional model, suggesting the enormous potential for new prospects around the Peace River Arch.

In partnership with:

CanadianDiscoveryLtd.

GRAHAM DAVIES

CONSULTANTS LTD.

GEOLOGICAL

GDGC