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Published byAlexandrina Freeman Modified over 9 years ago
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An Overview of Alberta Oil Sands and Recovery Technologies
XVIII Latin American Petroleum Show Maracaibo, Venezuela June 11-14, 2007 Eugene Dembicki Director, Canadian Heavy Oil Association Manager, Suncor Energy Inc. RSX
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Introduction Oil Resources Heavy Oil Properties
Global Canadian Heavy Oil Properties Geology of the Athabasca Oil Sands Deposit McMurray Formation - largest oil resource in Canada Recovery Methods Surface Mining Truck & Shovel In-situ CHOP (Cold Heavy Oil Production) CHOPS (Cold Heavy Oil Production with Sand) CSS (Cyclic Steam Stimulation) SAGD (Steam Assisted Gravity Drainage) VAPEX (Vapor Extraction) THAI (Toe-to-Heel Air Injection) RSX
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Resources RSX
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Resources RSX Saudi Arabia Canada Iraq Iran Abu Dhabi Kuwait Venezuela
Russia Libya Nigeria USA RSX
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Production RSX
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Production 60% production from mining (121,000 m3/day; 760,000 bpd)
40% production from in-situ (78,500 m3/day; 490,000 bpd) Source: AEUB RSX
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Production Source: AEUB RSX
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Heavy Oil Properties Athabasca Oil Sands
Thick, sticky mixture of sand, water, and bitumen About 7 degrees API Immobile at reservoir conditions (8-9 deg. C) Unconsolidated – very porous & permeable Exploited by mining & in-situ techniques Photo courtesy of Suncor Energy Inc. RSX
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Bitumen Viscosity – heat or diluent will reduce viscosity
Heavy Oil Properties Bitumen Viscosity – heat or diluent will reduce viscosity 10°C 90°C RSX
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Heavy Oil Properties Location
Oil sands production now exceeds one million barrels per day. Forecast 4.5 million bpd by 2015 $45 billion spent from $60 billion in new oil sands projects expected between 2006 & 2010. Exploited by mining & in-situ techniques RSX
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Heavy Oil Properties Alberta Bitumen Volumes in billion m3 (AEUB, June 2004) Category Mineable In Situ Total Initial volume in place 18.0 240.9 258.90 Initial established 5.59 22.80 28.39 Initial established under development 1.74 0.65 2.39 Cumulative production 0.46 0.21 0.67 Remaining established 5.13 22.60 27.73 Remaining established under development 1.28 0.44 1.72 RSX
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Heavy Oil Properties Challenge Bitumen Synthetic Crude Oil RSX
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Geology RSX
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Athabasca Oil Sands McMurray Formation - Athabasca River
Geology Athabasca Oil Sands McMurray Formation - Athabasca River Photo courtesy of Suncor Energy Inc. RSX
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Athabasca Oil Sands McMurray Formation - Shale Plug
Geology Athabasca Oil Sands McMurray Formation - Shale Plug Next Slide Photo courtesy of Suncor Energy Inc. RSX
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Athabasca Oil Sands McMurray Formation - Shale Plug
Geology Athabasca Oil Sands McMurray Formation - Shale Plug Shale Plug (Non-Reservoir) Rich Oil Sand Channel Margin (Interbedded/Mixed Oil Sand) Photo courtesy of Suncor Energy Inc. RSX
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McMurray Fm. – Depositional Model
Geology McMurray Fm. – Depositional Model Overbank: Non-reservoir Pond Mud Crevasse Splay Photo courtesy of Suncor Energy Inc. RSX
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Geology McMurray Fm. – Depositional Model Bank Collapse - breccia
Channel – Oil Sand Photo courtesy of Suncor Energy Inc. RSX
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Geology McMurray Fm. – Depositional Model Marine mud - Non reservoir
Tidal Flat – Non reservoir Photo courtesy of Suncor Energy Inc. RSX
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Surface Mining Athabasca Oil Sands Deposit McMurray Formation
Source: AEUB RSX
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Surface Mining 10% of the Athabasca Deposit is mineable
18 billion m3 in place 0.46 billion m3 produced 3 mines in operation Syncrude, Suncor, Shell 121,000 m3/day 760,000 bpd Photo courtesy of Nexen Inc. RSX
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Surface Mining Athabasca Oil Sands Deposit McMurray Formation RSX
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Surface Mining Truck & Shovel 400 ton truck = 100 barrels of bitumen
RSX
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Oil Sands Truck & Operator
Surface Mining Oil Sands Truck & Operator RSX
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Surface Mining Company Project Size (bpd) On Production
Albian/Shell Muskeg/Jackpine , now Suncor Base Plant , now Syncrude Base Plant , now CNRL Horizon 110, Imperial Kearl Like , PetroCan Fort Hills 50, RSX
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In-Situ Recovery Methods
Cold HO Production (CHOP) Primary Conventional Horwells & Multilaterals Waterfloods High WOR Operations Solvent Flooding CHOPS Primary with Sand Production Infill drilling for by-passed oil Post CHOPS EOR Cyclical Steam Stimulation Conventional CSS CSS with non-conventional wells (Multi-laterals & U) CSS with solvent Steam Assisted Gravity Drainage (SAGD) Immobile Bitumen Excellent pay zones Solvent AGD (VAPEX – Nsolv) In-situ Combustion Conventional (Shut-down) Toe to Heel Air Injection (THAI) Pilot RSX
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In-Situ Cold Heavy Oil Production (CHOP)
Rod Pumps & Sand Control Technology Slow rod fall rates Long stoke units Low pump rates Gas locking problems Problems with sand Wear of pump Stuck pumps Stuck tubing Fill in casing Low rates; rapid declines; & high water-cuts RSX
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In-Situ Cold Heavy Oil Production with Sand (CHOPS) ALBERTA Edmonton
Canada U.S.A. Calgary Edmonton PEACE RIVER COLD LAKE ATHABASCA LLOYDMINSTER 100 mile 125 km WABASCA ALBERTA
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In-Situ Cold Heavy Oil Production with Sand (CHOPS) Depth ~400-600 m
Thickness 2-7 m High Permeability Channels Developed – “wormholes” much greater reservoir contact Large Local Drawdown at End of Channels high pressure gradients which moves the sand 5-20% sand production Substantial Increase in Oil rates (10X) Successful Commercial Process RSX
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In-Situ Cold Heavy Oil Production with Sand (CHOPS)
Progressive Cavity Pump (PCP) or Screw Tech. transfer from mining & food processing in ‘80’s Rotate rods to drive downhole pump. Molded rubber stator & spiral stainless steel rotor. Capable of pumping a slurry & handling sand. Wells that produced sand had better oil rates & recoveries. RSX
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In-Situ Cold Lake Oil Sands Deposit Clearwater Formation (CSS, SAGD)
Canada U.S.A. Calgary Edmonton PEACE RIVER COLD LAKE ATHABASCA LLOYDMINSTER 100 mile 125 km WABASCA ALBERTA Source: AEUB
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In-Situ Cyclic Steam Stimulation (CSS)
CSS –Well established & most universally applicable EOR process California Venezuela Indonesia China Canada Inject: 14 – 60 days Soak: 1- 7 days Prod: 90 – 180 days Requires some oil mobility (20,000 to 500,000 cp) RSX
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In-Situ Cyclic Steam Stimulation (CSS) ALBERTA
Canada U.S.A. Calgary Edmonton PEACE RIVER COLD LAKE ATHABASCA LLOYDMINSTER 100 mile 125 km WABASCA ALBERTA Imperial Oil Cold Lake Project Production
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In-Situ Peace River Oil Sands Deposit
Bluesky Formation (CSS, SAGD, CHOP) Canada U.S.A. Calgary Edmonton PEACE RIVER COLD LAKE ATHABASCA LLOYDMINSTER 100 mile 125 km WABASCA ALBERTA
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In-Situ Cyclic Steam Stimulation (CSS) ALBERTA Edmonton Calgary
Canada U.S.A. Calgary Edmonton PEACE RIVER COLD LAKE ATHABASCA LLOYDMINSTER 100 mile 125 km WABASCA ALBERTA
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AOSTRA Dover UTF Project
In-Situ Steam Assisted Gravity Drainage (SAGD) Canada U.S.A. Calgary Edmonton PEACE RIVER COLD LAKE ATHABASCA LLOYDMINSTER 100 mile 125 km WABASCA ALBERTA AOSTRA Dover UTF Project 1st SAGD Wells in Canada (1997) 3 well pairs – 60 m Drill horizontal wells into the oil from tunnels in the limestone below the oil sand RSX
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In-Situ Steam Assisted Gravity Drainage (SAGD)
Horizontal length: 750 – 1200 m Vertical separation: 5 – 6 m TVD: 90 – 400 m Rate: 100 – 400 m3/day (700 – 2500 bpd) Steam Oil Ratio: 2 – 4 Current Production: 20,000 m3/day (125,000 bpd) RSX
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In-Situ Steam Assisted Gravity Drainage (SAGD) Example of SAGD Pads
Photo courtesy of Suncor Energy Inc. RSX
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In-Situ Steam Assisted Gravity Drainage (SAGD) SAGD Well Pad
Photo courtesy of Suncor Energy Inc. RSX
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In-Situ Steam Assisted Gravity Drainage (SAGD)
SAGD Well Pad – Slant Wellheads Photo Courtesy of Nexen from Long Lake RSX
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In-Situ Steam Assisted Gravity Drainage (SAGD) Alberta Projects
Company Project Size (mbopd) On Production ConocoPhillips Surmont Total Joslyn Devon Jackfish Encana Christina Lake Encana Foster Creek now Husky Sunrise Husky Tucker Lake JACOS Hangingstone now MEG Energy Christina Lake North American Kai Kos Dehseh Petro Canada MacKay River now OPTI/Nexen Long Lake Suncor Firebag I & now RSX
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In-Situ Vapor Extraction Process (VAPEX)
Large scale lab & field pilots are under-way. Results are generally classified as confidential RSX
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In-Situ Toe to Heel Air Injection (THAI) Petrobank Whitesands Project
3 well pilot started mid-2006 > 160 m3/day >1000 bpd Photo Courtesy of Petrobank RSX
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Bitumen Recovery Summary
Grade API Gravity Viscosity (CP) Production Method Recovery Percent 1) Transportation A 18 – 25 10 – 100 4) Cold 5 – 10 Flows B 2) 7 – 20 100 – 104 Cold 3 – 8 Diluent may be needed C 7 – 12 > 104 (1) CSS Huff / Puff 15 – 20 Diluent (2) SAGD 40 – 80 D < 4 Mining 3) 80 – 90 N/A 1) Lower gravity equates to higher cost of diluent. Cost of this step can be up to $4/bbl. 2) The lower gravity range is cold producible only when thermal gradients are high, as in the Orinoco. 3) Recoveries are high but only about 10% of the reserves are accessible to normal mining. 4) In rare instances steam sweeps are used simply to increase recoveries to the 60% level. RSX
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Supply Costs RSX
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Alberta Heavy Oil Industry
Conclusion Alberta Heavy Oil Industry Large Resource Production is Increasing Mining In-situ (CSS & SAGD) Modern Technology & Research Service & Suppliers
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Gracias! Questions?
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