Penn West Pembina Cardium CO 2 EOR seismic monitoring program

Transcription

1 Penn West Pembina Cardium CO 2 EOR seismic monitoring program Don Lawton Marcia Coueslan, Fuju Chen Henry Bland, Abdullah Alshuhail University of Calgary Calgary, Alberta, Canada

2 Penn West Petroleum CO 2 -EOR Pilot

3 Penn West monitoring program ( ) (ARC, AGS, UofA, UofC) Regional, local & reservoir geology Hydrogeology Well analysis, well integrity Observation well instrumentation Timelapse seismic program Passive seismic program Timelapse geochemistry program Monitoring wells (groundwater) Soil and casing gas Core & reservoir fluids analysis Rock physics & well log suites

4 Stratigraphy and sonic log response P-wave sonic S-wave sonic Ground Surface 0 Ardley Coal Knee Hill Tuff Edmonton Belly River Lea Park Cardium Zone Cardium Conglomerate Upper Cardium Sandstone Middle Cardium Sandstone Lower Cardium Sandstone Courtesy Rick Chalaturnyk

5 102/ W5/0 Gamma_Ray P-Wave Sonic S-Wave Sonic Vp/Vs Cardium Zone Cardium Sandstone Blackstone Fm

6 V p change versus CO 2 saturation V new p = K new sat ρ new b μ sat Ф =9% Ф =13%

7 PennWest Pembina Cardium CO 2 Pilot (P) 9-11 (P) (P) 102/10-11 (I) 102/12-12 (I) 102/7-11 (P) 8-11(P) 5-12 (P) 7-11 (Obs) Observation well Depth ~1650 m BHP ~19MPa BHT ~50 o C March t/day CO 2 Depth ~1620 m 1.1 km

8 Seismic lines, Penn West CO 2 EOR Pilot Line 1 Line 2 Seismic lines Line 3 CO 2 injection pad Line 6 Observation well 1 km

9 Seismic lines, Penn West CO 2 EOR Pilot Phase 1: March 2005 Phase 2: December 2005 Phase 3: March 2007

10 Seismic lines, Penn West CO 2 EOR Pilot

11 Seismic lines, Penn West CO 2 EOR Pilot Line 1 Line 2 Seismic lines Line 3 CO 2 injection pad Line 6 Observation well 1 km

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15 Passive seismic record

16 Multicomponent surface seismic and vertical seismic profile (VSP) surface seismic 3C receivers P-S P-P P-down observation well (VSP) P-down Vp1, Vs1, ρ1 S up P up Vp2, Vs2, ρ2 Vp2, Vs2, ρ2

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19 Seismic lines, Penn West CO 2 EOR Pilot Line 1 Line 2 Seismic lines Line 3 CO 2 injection pad Line 6 Observation well 1 km

20 W Line 3 migrated P-P section (Phase I) E Ardley coals Cardium Viking

21 W Line 3 migrated P-S section E Ardley coals Cardium Viking

22 PP (left) and PS (right) correlation P-wave sonic PP seismic S-wave sonic PS seismic Synthetic seismogram Seismic trace Synthetic seismogram Seismic trace Ardley Ardley Cardium Sand Blackstone Cardium Sand Blackstone Well location

23 Line 3 P-P & P-S correlation W E P-P P-S

24 3D volume display [P-P] Ardley Cardium

25 P-P time structure - Cardium

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27 Seismic lines, Penn West CO 2 EOR Pilot Line 1 Line 2 Seismic lines Line 3 CO 2 injection pad Line 6 Observation well 1 km

28 Line 1 Phase I Ardley coals Cardium Viking

29 Line 1 Phase III Ardley coals Cardium Viking

30 Line 1 Phase III Phase I Ardley coals Cardium Viking

31 Line 1 Phase III Phase I Ardley coals Cardium Viking

32 N Line 1 Phase III Phase I Ardley Viking isochron S Time (ms) Trace

33 Viking Ardley Δt (Phase II Phase I)

34 1600 Cardium Formation Viking Formation 1.0 s Line 3: PP Surface Seismic & VSP Offset (m)

35 Timelapse VSP surveys processed data Baseline Difference Time (s) Time (s) Phase II Difference 1.1

36 VSP amplitudes, Viking and Cardium events, Phase II Phase I (Line 2)

37 Seismic lines, Penn West CO 2 EOR Pilot Line 1 Line 2 Seismic lines Line 3 CO 2 injection pad Line 6 Observation well 1 km

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39 102/10-11 VSP Raw data

40 Surface seismic and VSP tie Cardium Viking

41 Offset VSP, migrated image

42 Phase III Penn West CO 2 EOR Pilot Line 1 Line 2 Line 6

43 Multicomponent surface seismic and vertical seismic profile (VSP) surface seismic 3C receivers Injector well (VSP) Position 3 (800 m 1025 m) Position 2 (1040 m 1265m) Vp1, Vs1, ρ1 Position 1 (1280 m 1505 m) Vp2, Vp2, Vs2, Vs2, ρ2 ρ2

44 Line 6 walkaway VSP VSP well st Receiver Gather( m) 2nd Receiver Gather( m) rd Receiver Gather( m) Wellhead

45 Discussion Surface seismic data integrated with local geological model No faults were mapped in pilot area Time-lapse seismic data indicates no leakage above reservoir, but difficult to track CO 2 within reservoir Timelapse VSP data exhibits amplitude change at Cardium event Passive monitoring continuing no significant events recorded, but noise problems exist

46 Acknowledgements Alberta Energy Research Institute [AERI] Western Economic Diversification [WED] Natural Resources Canada [NRCan] CREWES & Dept staff and students Penn West Petroleum Ltd Veritas DGC Mike Jones (Schlumberger Canada) Landmark Graphics Corporation