DIRECTIVE 54 PRESENTATION 06/05-11-084-17W5 DOWNHOLE ... · • Experimental scheme approved Feb...
Transcript of DIRECTIVE 54 PRESENTATION 06/05-11-084-17W5 DOWNHOLE ... · • Experimental scheme approved Feb...
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PREMIUM VALUE. DEFINED GROWTH. INDEPENDENT.
DIRECTIVE 54 PRESENTATION
06/05-11-084-17W5 DOWNHOLE HEATER
EXPERIMENTAL SCHEME APPROVAL 12582
May 23, 2019
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• Current Approval• Geology Overview• Completions, and Artificial Lift• Performance and Surveillance• Facilities• Measurement and Reporting• AER Compliance• Conclusions
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Agenda
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Current Approval
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Cliffdale Location
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• Experimental scheme approved Feb 10, 2017• Approval included single well in the Cliffdale heavy
oil field.• CNRL is current operator and 100% interest
owner. Acquired from Shell Canada in 2017.• Objective of experimental scheme was to enhance
the production of a well by means of adding a downhole, electric, wellbore heater in the horizontal leg.
• Premise behind project was that insitu wellbore heating would reduce oil viscosity and thus reduce pressure differential inside the horizontal section of the wellbore resulting in higher production and increased reserves.
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Experimental Scheme 12528A
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Geology
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Type Log
Type Log Location
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g
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Bluesky Gross Thickness Map
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Bluesky Top Structure Map
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Bluesky Base Structure Map
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• Bluesky Sand Thickness: 25.0m Depth: 630 – 655m TVD Net Pay: ~18.0m Average Core Porosity: ~28% Average Core Permeability: 463mD Temperature: 18°C Water Saturation 20 – 35% Core Oil Viscosity Range: 8,200 – 120,000cP @20°C Initial Reservoir Pressure: 3 800kpa
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Cliffdale Reservoir Properties (From 02-14 Type Log and Core)
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Completions and Artificial Lift
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Completions and Artificial Lift
Completion History• Dec 9 -17, 2016
• Install heater BHA w/ 17-1500 insert PCP• Oct 18 – 30, 2017
• Replace worn pump
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Performance And Surveillance
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Production History – 06/05-11
0.00
20.00
40.00
60.00
80.00
100.00
120.00
Jan‐08
Nov‐08
Sep‐09
Jul‐1
0May‐11
Mar‐12
Jan‐13
Nov‐13
Sep‐14
Jul‐1
5May‐16
Mar‐17
Jan‐18
Nov‐18
Sep‐19
Jul‐2
0May‐21
Mar‐22
Jan‐23
Oil Ra
te (b
opd)
Base Case vs. Incremental ‐ Oil Rate
Base Case Heater Well Case Actuals
0
50,000
100,000
150,000
200,000
250,000
Jan‐08
Nov‐08
Sep‐09
Jul‐1
0May‐11
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Jan‐13
Nov‐13
Sep‐14
Jul‐1
5May‐16
Mar‐17
Jan‐18
Nov‐18
Sep‐19
Jul‐2
0May‐21
Mar‐22
Jan‐23
Cumulative Oil Prod
uctio
n (bbl)
Base Case vs. Incremental – Cum Production
Base Case Heater Well Case
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Production History Details
• Heater online April 14, 2017• Well down time events
Pump Change October 2017 Curtailment April 2018 Curtailment November 2018 to
January 2019• Heater down time events
Feb 2018 – May 2018 Jan 2019 – April 2019
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Surveillance –Temperature Profile
• Temperatures of heated section continuously monitored using thermocouples and optical fiber• Temperature profile along heater shown below• Average heater temperature of 170 – 186o C observed during steady-state production
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Facilities
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Wellsite 106/05-11-084-17W5/00
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Plot Plan
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Facility Modifications
• Original facility modifications completed in 2017 and included: Control skid Transformer
• Since start-up, no additional facility modifications were carried out
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• Wellsite Facilities (106/05-11): Production goes to a 1000 bbl tank Fluids are heated to ~70°C Oil and water are trucked separately to the Cliffdale Battery All produced gas is collected in a combined VRU/gas header and also sent to the Cliffdale
Battery Power consumption: Average / Maximum – 300 kW / 482 kW
• Cliffdale Battery (03-25-084-17W5): Produced water is de-oiled and discharged to a disposal well Oil is further treated before sales Produced gas from pads is scavenged for H2S, compressed and conveyed to Peace River
Complex for either use as fuel for steam generation or storage
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Facilities Summary
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AER Compliance
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• CNRL’s Cliffdale field lies with-in the AER defined Peace River area that is subject to AER Directive 84
• Directive 84 states operators in the Peace River area must conserve at least 95 percent of all solution gas produced.
• All solution gas associated with the operation of the 06/05-11-084-17W5 well is conserved and then utilized in field operations or injected and stored at CNRL’s Three Creeks gas storage pool.
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AER Directive 84
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Conclusions
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• Oil production pre-startup of the downhole heater was ~25bbls/d oil.• Post startup of heater, oil production increased to an average of 37bbls/d oil, an
increase of ~12bbls/d oil. During periods of heater downtime, oil production decreased by this same volume.
• Increased oil production observed during operation of downhole electric heater provided evidence that the downhole electric heater experimental trial was successful in validating original theory.
• Increased oil rates have proven economics of continuing the operation of the down hole electric heater and CNRL will be applying to continue the enhanced oil recovery process.
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Project Summary
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PROVEN EFFECTIVE STRATEGY