Pelican Lake SAGD Pilot Approval 11469A 2011 Update. ERCB Offices March 21, 2012.

Transcription

1 Approval 11469A 2011 Update ERCB Offices March 21, 2012.

2 Introduction and Overview Introduction Subsurface Issues Related to Resource Evaluation and Recovery Directive 054, Section Surface Operations, Compliance, and Issues Not Related to Resource Evaluation and Recovery Directive 054, Section 3.1.2

3 Subsurface Issues: Table of Contents 1. Brief Background of the Scheme 2. Geology / Geoscience 3. Drilling and Completions 4. Artificial Lift 5. Instrumentation in Wells 6. Seismic 7. Scheme Performance 8. Future Plans

4 Brief Background Subsurface Subsection 1 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

5 Brief Background

6 Project Overview SAGD Pilot to evaluate large resource base of ~ 5 Billion barrels OBIP 100% WI Other operations within the region Cenovus and Canadian Natural Resources operate enhanced recovery schemes Laricina has proposed a 155,000 bbls/d development in the Grand Rapids A to the north

7 Application History April 2010 June 2010 August 2010 November 2010 August 2011 November 2011 December 2011 ERCB Scheme application submitted ERCB Approval No granted ERCB Facility License F42085 granted AENV Approval No granted ERCB MARP approved ERCB D51 granted for 26P01/26I01 ERCB Scheme amendment for 2 nd well pair submitted ERCB Approval No A granted AENV & ERCB amendment for 3 rd OTSG, expanded surface lease and extended operating period to December 2017 Approval pending

8 Description of Recovery Process The Pelican Lake SAGD Pilot uses the dual-horizontal well SAGD (steam assisted gravity drainage) process to recover the bitumen from the Grand Rapids A formation Two horizontal wells one above the other ~5m apart Steam injected into the upper well to heat the bitumen and allow gravity to drain to the lower well Oil and water emulsion pumped to the surface and treated

9 Original Objectives Test longer well lengths (1200m+) Evaluate start up procedures Determine peak rates from the Grand Rapids Reservoir management with the lean zone

10 Geology / Geoscience Subsurface Subsection 2 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

11 Predictable SAGD Play with New Challenges Shore-face Deposit Depositional environment is ideal for SAGD. Sands are laterally and vertically continuous and predictable. SAGD Well pair lengths up to 1600m in length are proposed Bitumen deposit within Regional Grand Rapids Aquifer Non saline ground water Reservoir quality issues; lean zone (top water mobility), average SAGD Pay 18 m, average SAGD oil saturation 64%, permeability ~ 2,900 md, and reservoir operating pressure ~ 1,200 kpa Wells 26P01, 26I01 100/ / / / /12-2 VIKING CAP ROCK GDPD A TOP PAY LEAN ZONE SAGD PAY BASE PAY GDPD B GDPD B

12 Stratigraphic Correlation After Jackson, 1983 Cap Rock Bitumen & Source Water Wabiskaw Production ~23,000 bbls/day Disposal Zone NISKU

13 Paleogeography - Grand Rapids A mbr Pelican Lake Depositional environment - prograding shoreface (marine sediments forming shoreline sandstones) Very fine to medium grained Quartzose sand with minor feldspar, chert, muscovite and biotites Aerially extensive 10m+ thick bar sands Shoreline After Jackson, 1983

14 Type Log VIKING JOLI FOU GRAND RAPIDS A GRAND RAPIDS B

15 Grand Rapids A Top Structure Map

16 SAGD Base Structure Map

17 Grand Rapids B Top Structure Map

18 Cap Rock Isopach Map (Joli Fou Formation)

19 Grand Rapids A Lean Zone Isopach Map

20 Grand Rapids A SAGD Pay Isopach Map

21 Summary of Reservoir Properties Base of Grand Rapids A Average Gross Thickness Average SAGD Pay Thickness Average Porosity Average Water Saturation m Subsea 23 m 18 m 35 % 46 % (Gross ) Average Permeability 2.9 D 38 % (SAGD Pay Zone) OBIP 8.0 X10 6 m 3 (50.3 MMbbls ) Oil Viscosity Oil Gravity Initial Reservoir Pressure 1,000,000 cp API 1200 kpa

22 Grand Rapids A Mineralogic Petrographic Montage

23 Cap Rock Integrity - Joli Fou Fm 103/ W4M (221 mkb) Fracture closure pressure=4.75 MPa

24 Drilling and Completions Subsurface Subsection 3 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

25 Well Layout / Location Map 03/ /9-10 Thermocouples Piezometers 00/ /8-10 x 02/ / / / /4-11 Ground Water obs 02/ /16-3 x X New Drills 02/ /9-3 x 03/ /5-11 (Swab/Inj test)

26 Start-up Circulation Pad26P01 Producer Completion KB Elevation: m Ground Elevation: m Conductor mm kg/m H-40 ST&C Surface Casing landed at 20.0 mkb UWI: 102/ W4/00 *Notes: Outer Tubing Outer tubing crossover should be ~20m back from liner hanger WR Plug Weatherford At mkb Surface Casing mm 81.1 kg/m J-55 ST&C Surface Casing landed at 95.0 mkb Intermediate Casing mm kg/m L-80 QB2 Production casing landed at mkb MD Outer tubing mm J-55 R kg/m TKC40/40 tubing set at mkb MD mm J-55 R kg/m TKC40/40tubing c/w re-entry guide on end of tubing from m mkb MD Instrument string 31.7 mm coil to 1,558.0 mkb Smith Thermal Liner Hanger top at mkb MD Bottom at mkb MD Inner Tubing Inner tubing crossover should be ~10m above outer tubing crossover. (73.0mm 60.3mm) Inner tubing crossover from 60.3mm to 73.0mm should be right after outer tubing TD. (As soon as possible) Inner tubing should end ~15-20m back from Liner TD. Liner Slotting First Slot at mkb Last Slot at ~ mkb TOE at mkb MD Inner tubing 73.0 mm R2 L-80 TKC40/40 tubing to mKB (~10 15 m above outer crossover) 60.3 mm R2 L-80 TKC40/40 tubing from m mkb (~5-10 m after end of outer 114.3mm tbg 73.0 mm R2 L-80 TKC40/40 tubing c/w mule shoe on end from m mkb MD December 2010 Liner capacity: kg/m m3/m kg/m m3/m Liner mm 38.7 / 34.2 kg/m L-80 QB m mkb MD (end of guide shoe)

27 Start-up Circulation Pad26I01 Injector Completion Surface Casing 13 3/8 in mm kg/m H-40 ST&C Surface Casing landed at mkb UWI: 100/ W4/00 *Notes: Outer Tubing Outer tubing crossover should be ~20m back from liner hanger Inner Tubing Inner tubing crossover should be ~10m from outer tubing crossover. (73.0mm 60.3mm) Inner tubing crossover from 60.3mm to 73.0mm should be right after outer tubing TD. (As soon as possible) Inner tubing should end ~15-20m back from Liner TD. Intermediate Casing 9 5/8 in mm kg/m L-80 QB2 Production casing landed at mkb Outer tubing 5.5 in & 4.5 in mm tubing to mkb mm tubing from 400mKb to mkb Inner tubing 2 7/8 in 73.0 mm tubing to mkb (~10-15 m before outer Crossover) 60.3 mm tubing to mkb (~5-10 m after outer tubing bottom) 73.0 mm tubing to mkb December 2010 Liner Hanger mkb Liner mm = 7 in 38.7 / 34.2 kg/m L-80 QB mkb

28 26P01: Completion After Circulation with Suction Ports Surface Casing mm kg/m H-40 ST&C Surface Casing landed at mkb Intermediate Casing mm kg/m L80 QB2 Production casing mkb See next slide for discussion on challenges with this completion. Production Tubing: 4.5 in mm tubing to mkb ESP 380 mkb Instrument String 31.7 mm coil end of tail pipe Include bubble tube at Pump intake 4.5 Tail Pipe with 2 ports. April 2011 Liner mm 38.7 / 34.2 kg/m L-80 QB2 Liner Hanger mkb mkb

29 Producer Suction Ports: Discussion The suction ports were designed to increase the capacity of the 4.5 tubing in the horizontal section while minimizing the pressure drop in the annulus between the 7 liner and the 4.5 tubing. Fluid entering the liner upstream of a suction port will enter the 4.5 tubing through that port and thus be removed from the annulus before the next suction port. This system works very well when the well pair is uniformly heated. However, in this case there is a hot spot close to the heel of the producer and it was desirable to get the fluid from the hot spot to the toe thereby promoting uniform heating along the producer liner. The suction ports made it difficult to achieve this and were thus removed. We also needed to steam the producer and the suction ports which impeded steam to the toe.

30 26I01: Re-Completed with Steam Splitters Conductor mm kg/m H-40 ST&C landed at 20.0 mkb KB Elevation: m GL Elevation: m Surface Casing mm 81.1 kg/m J-55 ST&C Surface Casing landed at 92.0 mkb MD Intermediate Casing mm kg/m L-80 QB2 Production casing landed at mkb MD Injection Tubing mm J-55 R kg/m TKC40/40 tubing set at mkb MD 88.9 mm J-55 R kg/m TKC40/40tubing from m mkb MD April x88.9mm CrossOver mm TKC40/40 tubing with steam splitters to mkb

31 26P01: Suction Ports Removed Surface Casing mm kg/m H-40 ST&C Surface Casing landed at mkb Intermediate Casing mm kg/m L80 QB2 Production casing mkb Production Tubing: 4.5 in mm tubing to mkb ESP 380 mkb Instrument String 31.7 mm coil end of tail pipe Include bubble tube at Pump intake 4.5 Tail Pipe September 2011 Liner mm 38.7 / 34.2 kg/m L-80 QB2 Liner Hanger mkb mkb

32 Evolution of SAGD Well Pair Completions Wells 26P01, 26I01 Injector and Producer had similar completions during start up circulation. After start up, producer was re-completed with ESP and suction ports in the production tubing which extends to the toe. The injector was re-completed with 15 steam splitters to promote uniform steam injection down hole. Suction port design was not optimum and the producer was later re-completed with the suction ports removed.

33 Artificial Lift Subsurface Subsection 4 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

34 Artificial Lift The artificial lift mode for the Grand Rapids A SAGD Pilot producer is Electric Submersible Pump (ESP) Operating pressure range kpa, Bottom hole temperature limit of 207C during production. Can steam past pump at higher temperatures. Lift capacity up to 600 m3/d The artificial lift mode for the Grand Rapids B water source well is Electric Submersible Pump (ESP) Lift capacity up to 750 m3/d

35 Instrumentation in Wells Subsurface Subsection 5 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

36 Instrumentation In Wells SAGD Well Pair Instrumentation Gas blanket for injector bottom hole pressures. No down hole temperature measurements in injector. Bubble tube for producer bottom hole pressure measurements. Also equipped with 6 thermocouple coiled tubing to the toe. 6 Observation wells 3 are equipped with piezometers. 3 are equipped with thermocouples. Requirements under subsection a wellbore schematics, 5c and 5d are included in the Appendix.

37 Instrumentation In Wells 03/ /9-10 Thermocouples Piezometers 00/ /8-10 x 02/ / / / /4-11 Ground Water obs 02/ /16-3 x X New Drills 02/ /9-3 x 03/ /5-11 (Swab/Inj test)

38 Seismic Subsurface Subsection 6 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

39 Seismic Coverage Very small, 1 sq. km, small bin with 10 m size Baseline 3D was shot in winter Purpose: Baseline seismic for monitoring of steam chamber growth in pilot area Re-shot in winter, currently being processed

40 2010 & D/4D Seismic Programs

41 Scheme Performance Subsurface Subsection 7 Pelican Lake SAGD Pilot 2011 Annual Performance Presentation

42 Scheme Performance Prediction Well pair performance prediction was based on a correlation using a modified Butler s equation and sensitivities from reservoir simulation. CSOR was predicted for the well pair from published correlations for CSOR (Edmunds and Chhina 2002)

43 Wellhead Steam Quality Steam quality injected into the wells is estimated at 98% Steam is generated at 7500 kpa and saturation temperature of 290 C Actual wellhead injection pressure depends on steam injection rate but has not exceeded 5,000 kpa (264 C) to date

44 Summary Operating for ~ 15 months Progress has been slow: Had to deal with many unplanned issues Excellent learnings to date: Very relevant to the start up of the commercial project Good reservoir performance: Mechanical issues limited wellbore effectiveness - still less than ½ of the well length Second well pair drilled to achieve original pilot objectives. Major focus is start-up

45 Project Timelines Time Period Dec 10, 2010 to Apr 13, 2011 April 13 to May 11 May 11 to June 5 June 14 to July 7 July 7 to Aug 31 Sep 1 to Oct 10 Oct to Jan 24, 2012 Jan 24 to Mar 13 Mar 14 Activity Start-up and Circulation Recompletion Initial SAGD Operations Steam Injection Into Producer Extended SAGD Operations Steam injection into producer, turnaround, ESP replacement, producer recompletion SAGD Operations Steam injection into producer Resuming SAGD Operations

46 Startup and Circulation (Dec. 10 to April 13) Thermocouple string malfunction Lean Zone Pressure SAGD wells connected to lean zone days after startup / / / /3-11 Operations at low pressures Dec 18-Dec 23-Dec 28-Dec 2-Jan 7-Jan 12-Jan

47 Recompletions (April 13 to May 11, 2011) SAGD producer recompletion went well Casing liner failure and split tubing coupling in SAGD injection well Casing Liner Debris Split Coupling

48 Temperature Surveys and Thermocouples HEEL TOE Temp (Deg C) Injection Liner Failure Depth (m) Producer Injector_April16 Injector_April 15 Aug31 TC before SI Prd_Ports Injector_Jan Inj_Liner Problem Seismic Anomaly

49 SAGD Re Completions SAGD INJECTOR SAGD PRODUCER Thermocouple Tubing Bubble Tube ESP Suction Ports Steam Splitters

50 Initial SAGD Operations (May 11 to June 5) H2S produced almost immediately Temporary flare system installed to allow production Incinerator installation Relatively low and unstable production rates

51 July / August SAGD Operations Operations for 8 weeks < 400 m of 1,200 m horizontal well heated up 150 bbls/d SOR = 3 bbl/bbl Thermocouples2 [Generated from trend :27:04 AM] SAGD-SW026-TT1106F Daily Avg [degc] SAGD-SW026-TT1106E Daily Avg [degc] SAGD-SW026-TT1106D Daily Avg [degc] 225 SAGD-SW026-TT1106C Daily Avg [degc] SAGD-SW026-TT1106B Daily Avg [degc] SAGD-SW026-TT1106A Daily Avg [degc] degc Jul Fri 15 Fri 22 Fri 1 Mon 8 Mon 15 Mon 22 Mon 1 Thu

52 September and October Operations ESP failed due to damaged cable; removed and installed new ESP Removed producer suction ports Injected steam to toe of producer ESP startup today SAGD PRODUCER Thermocouple Tubing Bubble Tube ESP Scab Liner

53 2011 Cumulative Injection & Production Volumes December 10 th 2010 to March 1 st 2012 = 43,110 m 3 of steam Steam Fluid Volume (m^3) Oil Dec Jan Mar-11 8-May Jun Aug-11 5-Oct Nov Jan-12 Time

54 2011 Pilot Performance Total Fluid Oil Steam SOR Steaming Producer Steaming Producer Rate (m 3 /d) SOR Jul 28-Jul 18-Aug 8-Sep 29-Sep 20-Oct 10-Nov 1-Dec 22-Dec 12-Jan 2-Feb 23-Feb *Note: Site turnaround September 12-15th, 2011 Date

55 2011 Thermocouple Response 103/12-02 Thermocouple located at toe Temperature (C) mTVD 219 Depth (mkb) 229 January 8th April 1st 2011 August 15th 2011 December 31st mTVD Lateral distance from Observation well to the well pair = 4.0 m

56 2011 Thermocouple Response 102/13-02 Thermocouple 400m from toe toward heel Temperature (C) m TVD January 6th April 1st 2011 August 15th 2011 December 31st 2011 Depth (mkb) m TVD Lateral distance from Observation well to the well pair = 4.2 m

57 2011 Thermocouple Response 102/05-11 Thermocouple located at heel Temperature (C) m TVD 219 January 8th 2011 Depth (mkb) 229 April 1st 2011 August 15th 2011 December 31st m TVD Lateral distance from Observation well to the well pair = 21.4 m

58 Key Learnings 1. Project Design and Execution Cooling and gas handling required at low operating pressures 2. Drilling, Completions and Wellbores Improved mud system and larger drilling rigs Ensure wellbore heated up before SAGD operations Ability to divert steam to focus areas of wellbore is critical 3. Operations at Low Pressures 4. Reservoir and Production Lean zone management H 2 S presence

59 Future Plans Subsurface Subsection 8 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

60 Second Well Pair Profile & Observation wells 03/ /9-10 Thermocouples Piezometers 00/ /8-10 x 02/ / / / /4-11 Ground Water obs 02/ /16-3 x X New Drills 02/ /9-3 x 03/ /5-11 (Swab/Inj test)

61 Future Plans A second well pair has been drilled and is being completed. The wells are equipped with 9 5/8 intermediate casing and 1,200m long 7 slotted liner The well pair will have fibre-optic cables for temperature and pressure monitoring The second well pair also has three observation wells for monitoring the lean zone pressures, temperatures and steam chamber growth Waiting for approval to install a third steam generator (30 MMBtu) to increase steam capacity, expand the surface lease area and extend the operating life of the pilot

62 Pelican Lake SAGD Pilot Proposed Surface Heave Monitoring (InSAR) Scheme Boundary

63 Surface Operations, Compliance and Issues Not related to Resource Evaluation and Recovery Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

64 Surface Operations: Table of Contents 1. Facilities 2. Measurement and Reporting 3. Fresh and Brackish Water Sources and Uses 4. Water Treatment Technology 5. Water, Landfill waste and waste disposal wells 6. Sulphur Production 7. Summary of Environmental Issues 8. Compliance Confirmation 9. Future Plans

65 Facilities Surface Subsection 1 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation0

66 Current Site Plan N Planned site expansion

67 Block Diagram

68 Facilities Modifications Installed an incinerator to handle the casing gas Helped with the ESP pumping efficiency to evacuate producer casing

69 Plant Performance Overall stable plant performance Water Treatment works well Emulsion transported to Greater Pelican Lake battery with no issues Boilers have had minor issues

70 Measurement and Reporting Surface Subsection 2 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

71 MARP Schematic

72 MARP Updated MARP submitted March 12th Amendments New mass flow meters added Incinerator package added to handle casing gas A second casing gas meter added Planned Additions Meters associated with the second well pair

73 Fresh and Brackish water sources and uses Surface Subsection 3 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

74 Fresh Water Sources Two Fresh water wells 1. 1F1/ W4 in the Grand Rapids B formation 2. 1F1/ W4 in the Grand Rapids B formation No Brackish water wells

75 Fresh Water Daily Volumes 600 Water Source Well Rate: 1F1/ W4 500 Current Flow (m^3/day) Dec Jan Mar-11 9-May Jun Aug-11 6-Oct Nov Jan-12 4-Mar-12 Time

76 Water Treatment Technology Surface Subsection 4 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

77 Water Treatment Block Flow diagram Raw Water from Wells Raw Water Tank Ion Exchange Column Soft Water BFW Tank BFW to Boilers Ion Exchange Column Boiler Blow Down Tank Boiler BD from Boilers Blow down to Disposal Ion Exchange Regen. Waste Boiler Blow down / Regen. Waste Tank BD / Regen. Waste to Disposal Wells

78 Water Treatment Technology Media Filtering Primary Strong Acid Cation (SAC) Secondary SAC polisher Source water for brine regeneration

79 Water, Landfill waste and waste disposal wells Surface Subsection 5 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

80 Disposal Well One disposal well 105/ W4 Disposal of boiler blowdown and regeneration waste in the Wabamun/Gramina/Calmar/Nisku

81 Disposal Well Rates Disposal Volumes Disposal Pressures Volume (m^3) No Data during this period Dec Jan Mar Apr Jun Jul-11 8-Sep Oct-11 7-Dec Jan Time

82 Sulphur Production Surface Subsection 6 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

83 Sulphur Production No sulphur Production

84 Summary of Environmental Issues Surface Subsection 7 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

85 Environment Update No compliance issues Approval # amendment pending Addition of 3rd Steam Generator Extension of Pilot operating period to December 2017 Expansion of Pad 26 surface lease

86 Compliance Confirmation Surface Subsection 8 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

87 Compliance Confirmation 2 Non-compliance events have occurred since the last performance review December 2010 The maximum bottom hole pressure on the SAGD well pair 102/ W4 was exceeded Self-disclosure document submitted in October 2011 January 2012 The maximum wellhead pressure on the water disposal well 105/ W4 was exceeded Self-disclosure document submitted in February 2012

88 Future Plans Surface Subsection 9 Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

89 Site Plan with Second Well Pair Addition N Planned site expansion

90 Future Plans Pending approval a third OTSG will be installed in 2012, and the surface lease will be expanded A D-51 application has been submitted, and pending approval, the second well pair will be put into operation

91 Appendix Pelican Lake SAGD Pilot Approval 11469A 2011 Annual Performance Presentation

92 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic ECA ECOG A8 BRINT / W4 LSD W4M Conductor: Landed at 20 m KB / 244.5mm KB= mkb GRD= mkb PBTD = mkb Intermediate Casing: mm, kg/m, K-55 Landed at mkb Cemented to surface with Thermal Cement 2.0m3 of returns Secondary Intermediate Casing: 88.9 mm, kg/m, J-55 Landed at mkb Cemented to surface with Thermal Cement 6.1m3 of returns Tubing String: 31.8mm, 1.697kg/m, Galvonized Steel Landed at mKB ESP Pump mKB (Pressure/Temperature sensor for fluid level mKB) Perforations: mKB mkb mkb PBTD Cement Top in Secondary Intermediate mkb Intended Purpose: Pressure (Fluid Level), Temperature, W ater quality monitoring of Grand R apids B aquifer

93 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic ECA ECOG A9 BRINT / W4 LSD W4M Conductor: Landed at 20 m KB / 244.5mm KB= mkb GRD= mkb PBTD = mkb Intermediate Casing: mm, kg/m, K-55 Landed at mkb Cemented to surface with Thermal Cement 2.0m3 of returns Secondary Intermediate Casing: 88.9 mm, kg/m, J-55 Landed at mkb Cemented to surface with Thermal Cement 2.0m3 of returns Tubing String: 31.8mm, 1.697kg/m, Galvonized Steel Landed at mKB ESP Pump mKB (Pressure/Temperature sensor for fluid level mKB) Perforations: mKB mkb mkb PBTD Cement Top in Secondary Intermediate mkb Intended Purpose: Pressure (Fluid Level), Temperature, W ater quality monitoring of Grand Rapids B aquifer

94 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic CVE BRINT / W4 LSD W4M Conductor: Landed at 20 m KB / 406.4mm KB= mkb GRD= mkb PBTD = mkb Surface Casing: mm, kg/m, H-40 Landed at 99.5 mkb Cemented to surface with Thermal Cement 1.0m3 of returns Intermediate Casing: mm, kg/m, L-80 Landed at mkb Cemented to surface with Thermal Cement 4.0m3 of returns Tubing String: 31.8mm, 1.697kg/m, Galvonized Steel Landed at mKB ESP Pump mKB (Pressure/Temperature sensor for fluid level mKB) Perforations: mkb mkb mkb Intended Purpose: Pressure (Fluid Level), Temperature, Water quality monitoring of Grand Rapids B aquifer

95 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic CVE 2C13 BRINT / W4 LSD W4M Conductor: Landed at 20 m KB / 406.4mm KB= mkb GRD= mkb PBTD = mkb Surface Casing: mm, kg/m, H-40 Landed at mkb Cemented to surface with Thermal Cement 1.5m3 of returns Intermediate Casing: mm, kg/m, L-80 Landed at mkb Cemented to surface with Thermal Cement 4.0m3 of returns Tubing String: 31.8mm, 1.697kg/m, Galvonized Steel Landed at mKB ESP Pump mKB (Pressure/Temperature sensor for fluid level mKB) Perforations: mkb mkb mkb Intended Purpose: Pressure (Fluid Level), Temperature, Water quality monitoring of Grand Rapids B aquifer

96 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic ECA ECOG B3 BRINT / W4 LSD W4M Conductor: Landed at 20 m KB / 244.5mm KB= mkb GRD= mkb PBTD = mkb Intermediate Casing: mm, kg/m, K-55 Landed at mkb Cemented to surface with Thermal Cement 2.0m3 of returns Secondary Intermediate Casing: 88.9 mm, kg/m, J-55 Landed at mkb Cemented to surface with Thermal Cement 2.0m3 of returns Tubing String: 31.8mm, 1.697kg/m, Galvonized Steel Landed at 149.1mKB ESP Pump mKB (Pressure/Temperature sensor for fluid level 149.5mKB) Perforations: mKB PBTD Cement Top in Secondary Intermediate mkb Intended Purpose: Pressure (Fluid Level), Temperature, W ater quality monitoring of Grand Rapids A aquifer

97 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic CVE C12 BRINT / W4 LSD W4M Conductor: Landed at 22 m KB / 244.5mm KB= mkb GRD= mkb PBTD = mkb Intermediate Casing: mm, kg/m, L-80 Landed at mkb Cemented to surface with Thermal Cement 2.0m3 of returns Tubing String: 31.8mm, 1.697kg/m, Galvonized Steel Landed at 150.0mKB ESP Pump mKB (Pressure/Temperature sensor for fluid level 150.4mKB) Perforations: mkb Intended Purpose: Pressure (Fluid Level), Temperature, Water quality monitoring of Viking aquifer

98 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic CVE WS2 BRINT F2/ W4 LSD W4M Conductor: Landed at 20 m KB / 406.4mm KB= mkb GRD= mkb PBTD = mkb Intermediate Casing: mm, kg/m, J-55 Landed at 152.0mKB Cemented to surface with Thermal Cement 2.0m3 of returns Tubing String: 88.9mm, 13.84kg/m, J-55 Landed at 140.0mKB PCP 126.4mKB (Pressure/Temperature sensor for fluid level 97.0mKB) Liner: 139.7mm, 29.48kg/m, J mm slot size (15 thou) Set depth mkb (open hole from mkb) Intended Purpose: Pressure (Fluid Level), Temperature, W ater quality monitoring of Quaternary/Tertiary aquifer (well pumping consistantly as it provides fresh water for current Wabiskaw polymer flood in the area)

99 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic 2003 Camp Water Supply Well No NE W4 LSD W4M PBTD = mkb Intermediate Casing: mm, Plastic (PVC) Landed at 112.2mKB Bentonite Chips/Tablets to mKB Tubing String: 31.75mm, Plastic (PVC) Landed at 140.0mKB ESP 100.6mKB (Pressure/Temperature sensor for fluid level 95.0mKB) Liner: 152.4mm, Stainless Steel 0.381mm slot size (15 thou) Set depth mKB Intended Purpose: Pressure (Fluid Level), Temperature, Water quality monitoring of Quaternary aquifer (well pumping consistantly as it provides fresh water Pelican Lake Camp)

100 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic CVE BRINT / W4 LSD W4M Conductor: Landed at 22 m KB / 406.4mm KB= mkb GRD= mkb PBTD = mkb Surface Casing: mm, kg/m, J-55 Landed at 69.5 mkb Cemented to surface with Thermal Cement 2.0m3 of returns Intermediate Casing: mm, kg/m, L-80 Landed at mkb Cemented to surface with Thermal Cement 4.5m3 of returns Sensors: 8 Piezometers (Pressure) and Thermocouples (Temperature) Cemented to Casing Pressure/Temperature Sensor Set Depths: mkb mkb mkb mkb mkb mkb mkb mkb Intended Purpose: Pressure and Temperature through Grand Rapids A steam chamber

101 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic CVE 2B BRINT / W4 LSD W4M Conductor: Landed at 20 mkb / 406.4mm KB= mkb GRD= mkb PBTD = mkb Surface Casing: mm, kg/m, J-55 Landed at mkb Cemented to surface with Thermal Cement 3.0m3 of returns Intermediate Casing: mm, kg/m, L-80 Landed at mkb Cemented to surface with Thermal Cement 4.0m3 of returns Sensors: 8 Piezometers (Pressure) and Thermisters (Temperature) Cemented to Casing Pressure is calculated from capillary tubes set 60m below each piezometer/thermister gauge Temperature is calculated from the set depth of the piezometer/thermister gauge Pressure Measurement Depths: mkb mkb mkb mkb mkb mkb mkb mkb Intended Purpose: Pressure and Temperature through Grand Rapids A steam chamber

102 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic ECA ECOG B5 BRINT / W4 LSD W4M Conductor: Landed at 20 mkb / 244.5mm KB= mkb GRD= mkb PBTD = mkb Intermediate Casing: mm, kg/m, K-55 Landed at mkb Cemented to surface with Thermal Cement 2.0m3 of returns Secondary Intermediate Casing: 88.9 mm, kg/m, J-55 Landed at mkb Cemented to surface with Thermal Cement 1.5m3 of returns Thermocouple String: WIKA 20 Point Thermocouple Landed mkb Each Thermocouple is 2 m apart along the landing depth length PBTD Cement Top in Secondary Intermediate mkb Intended Purpose: Temperature monitoring of Grand Rapids A steam chamber

103 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic ECA ECOG C13 BRINT / W4 LSD W4M Conductor: Landed at 23 mkb / 244.5mm KB= mkb GRD= mkb PBTD = mkb Intermediate Casing: mm, kg/m, L-80 Landed at mkb Cemented to surface with Thermal Cement 2.0m3 of returns Thermocouple String: WIKA 20 Point Thermocouple Landed mkb Each Thermocouple is 2 m apart along the landing depth length Intended Purpose: Temperature monitoring of Grand Rapids A steam chamber

104 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic CVE BRINTNELL / W4 LSD W4M Conductor: Landed at 24.2 m KB / 406.4mm KB= mkb GRD= mkb PBTD = mkb Surface Casing: mm, kg/m, H-40 Landed at mkb Cemented to surface with Thermal Cement 2.0m3 of returns Intermediate Casing: mm, kg/m, L-80 Landed at mkb Cemented to surface with Thermal Cement 1.0m3 of returns Thermocouple String: WIKA 20 Point Thermocouple Landed mkb Each Thermocouple is 2 m apart along the landing depth length Intended Purpose: Temperature monitoring of Grand Rapids A steam chamber

105 Appendix: Pelican Lake SAGD Pilot Observation Wellbore Schematic CVE B6 BRINT / W4 LSD W4M Conductor: Landed at 25 m KB / 244.5mm KB= mkb GRD= mkb PBTD = mkb Intermediate Casing: mm, kg/m, L-80 Landed at mkb Cemented to surface with Thermal Cement 2.0m3 of returns Tubing String: 73.0 mm, 9.67kg/m, J-55 Landed at mKB Packer to isolate zones landed at mKB Pressure/Temperature Sensor banded to tubing at 208.2mKB (above packer) Pressure/Temperature Sensor deployed through tubing landed at 241.6mKB (below packer) Perforations: mkb mkb Intended Purpose: Pressure (Fluid Level) and Temperature monitoring of Grand Rapids A zone

106 Appendix: Pelican Lake SAGD Pilot Observation wells data Table : Thermocouples in Observation wells UWI Location from SAGD well pair toe (m) Lateral Distance (m) 102/ W4/ / W4/ / W4/ Table : Piezometers in Observation wells UWI Location from SAGD well pair toe (m) Lateral Distance (m) 103/ W4/ / W4/ / W4/

107 Appendix: Pelican Lake SAGD Pilot Groundwater Observation wells data Table : Groundwater Observation wells UWI Perf. Interval TVD (m) Zone Lateral Difference from well pair (m) 102/ W4/ GR A 408 E 103/ W4/ VIKING 468 N 100/ W4/ / W4/ / W4/ / W4/ GR B GR B GR B GR B 252 N 179 W 20 E 10 E

108 Appendix: Pelican Lake SAGD Pilot Lean Zone Pressures Weekly Report- Lean Zone pressures [Generated from trend :34:37 AM] OW-09PT100A1 Daily Avg [kpa] OW-14PT100A8 Daily Avg [kpa] OW-16PT100A8 Daily Avg [kpa] OW-16PT100A8 Daily Avg [kpa] OW-09PT100A1 Daily Avg [kpa] OW-14PT100A8 Daily Avg [kpa] Apr Jul Oct Jan 2012

109 Appendix: Pelican Lake SAGD Pilot Downhole Pressures of Producer and Injector Injector SAGD-SW026-PIT2604 Daily Avg [kpa] [2 Pen] Historical Trend Producer SAGD-SW026-PIT2607 Daily Avg [kpa] kpa Apr Jul Oct Jan 2012