Journey to the Centre of the Unconventional Play: The Pathway from Regional Analysis through Quantitative Interpretation to Well Planning September 26, 2012 Presented by: Cheryl Wright Neil Watson Amy Fox Laurie Bellman
Welcome
Agenda CHERYL WRIGHT Introduction NEIL WATSON Montney Regional Setting and Production Summary AMY FOX Geomechanics LAURIE BELLMAN Quantitative Interpretation KAUSH RAKHIT Concluding Remarks Acknowledgements Next Talk Cap…
Quantitative Stress Seismic Analysis Interpretation Well Planning Reservoir Characterization Geomechanics Source Rock Hydrodynamics Evaluation
Montney, the 3 N.A. Resource Play EIA, 2011
Montney Facies Map Detailed understanding of facies through high resolution stratigraphy and core work
Hydrodynamics and Facies Integration
Montney P/D Ratio
Montney Wet Gas Index Map
Montney Isotherm Map
Montney IP Vertical vs. Horizontal
Montney Tight Gas Project
Montney Tight Gas Project Area
Montney Focus Area
Montney Multi-Well Production Chart MMCF/day
Average/Well Production Gas by Quartile
1st Year Ave Production and Forecast Cum. Gas
18 Mo. Cum Prod Vs Technology Group
Montney Quartile Distribution Map
Quantitative Stress Seismic Analysis Interpretation Well Planning Reservoir Characterization Geomechanics Source Rock Hydrodynamics Evaluation
Decision Option A 1. Set a rig where access is easy. 2. Drill the same well the guy in the township next to you did and expect the same results. 3. React to drilling surprises as they occur. 4. Collect the standard, minimum data…
Decision Option B 1. Start with a field development plan thats based on a preliminary understanding of your reservoir from seismic and offset well data. 2. Drill an efficient well, proactively addressing any expected issues. 3.…
How can Geomechanics help GEOMECHANICS is how in situ stresses, pressures and rock properties affect your decision-making in all stages of the reservoir life cycle
How can Geomechanics help Hydrofrac optimization Completion Drilling design parameters Geomechanics Fault stability Thermal and reactivation operations, EOR Natural fractures, Caprock integrity weak bedding planes
Key Geomechanical Parameters MINIMUM HORIZONTAL STRESS VERTICAL STRESS HORIZONTAL STRESS DIRECTION Density logs Leak-off tests Wellbore failure Pseudo-density from Minifracs or hydraulic observed in image or sonic fracturing data…
Stress in Alberta Uniform Kind of, but not really. Will it affect how you drill It should Will it affect your fracs It sure will Will it affect production Most likely, yes Heidbach, O., Tingay, M., Barth, A.,…
Production from Natural Fractures in Shale FRAC STAGES AND PORTS PRODUCTION LOG NATURAL FRACTURE DENSITY LOG ACQUISITION & INTERPRETATION 60-80K NATURAL FRACTURES PICKED FROM IMAGE LOGS FRAC STAGE 300K + SMART…
Natural Fracture Permeability There are no open tensile fractures (mode I) occurring naturally at depth Fractures at depth are sliding mode (modes II and III) shear fractures Shear fractures that are optimally oriented for…
Individual well, drilled, logged, analyzed Planned well Data from multiple wells and seismic Baker Hughes JewelSuite
Quantitative Stress Seismic Analysis Interpretation Well Planning Reservoir Characterization Geomechanics Source Rock Hydrodynamics Evaluation
Attribute Correlation Reservoir Properties Attributes Derivable from Seismic Depositional Environment P-impedance Quartz and Carbonate Content S-impedance Brittleness Density Pressure Youngs Modulus Stress Poissons Ratio Fluid Type…
What is QI Conventional seismic interpretation provides geometry. Quantitative interpretation tells us about rock properties by rearranging the seismic amplitude values to represent geology.
Single Seismic Attribute Correlates to Microseismic Events Poissons Ratio map with and without microseismic events. Source: Norton et al., 2011, Integration of Surface Seismic and Microseismic for the Characterization of a Shale Gas…
Single Seismic Attribute Correlates to Closure Stress Isotropic Closure Stress Source: Monk et al., 2011, Shale Gas and Geophysical Developments, CSEG Recorder, Jan. 2011, p35-38
Focus on 3 Wells 8-30-82-22 6-10-79-15 11-28-74-10
100/6-10-79-15W6 Acquired Logs Computed Logs Density GR 300 Vp 100 5000 Zp 15000 0 LR 80 0 PR 0.4 2400 2800 0 200 400 Vs 200 5000 Zs 10000 20 MR 100 20 YM 80 2150 Montney Formation 2200 2250 2300 2350
Deterministic Rock Physics Templates (DRPT)
Youngs Modulus vs Poissons Ratio Youngs Modulus Poissons Ratio
Relative Brittleness Highlighted 100/6-10-79-15W6 Density GR Vp Zp LR PR 300 100 5000 15000 0 80 0 0.4 2400 2800 0 200 400 Vs 200 5000 Zs 10000 20 MR 100 20 YM 80 2150 2200 2250 2300 2350
Shale Play Brittleness Comparison Montney Matt McKeon Halliburton
Relative Brittleness Highlighted 100/6-10-79-15W6
Lam Parameters as Proxy for Youngs Modulus vs Poissons Ratio 100/6-10-79-15W6 Youngs Modulus Mu*Rho Poissons Ratio Lambda*Rho
Remember the 3 Wells 8-30-82-22 6-10-79-15 11-28-74-10
Rock Property Variation Between Wells Youngs Modulus Poissons Ratio
Rock Property Variation Between Wells Youngs Modulus Poissons Ratio
DRPT Process QC all wells with dipole sonics Compute elastic properties and correlate to reservoir parameters Create comprehensive rock physics templates based on deterministic analysis conditioned by regional understanding
Acknowledgements Neil Watson Consulting Services Director Laurie Bellman Geophysics and Quantitative Interpretation Director Amy Fox Senior Geomechanics Specialist Cheryl Wright Client Relations Business Development Director…
Acknowledgements David Hume Multi-Client Studies Director Kaush Rakhit President Neil Praught Geological and Geophysical Technologist Ally Masoud Lead Graphic Designer Catherine Allen, Pete Singbeil Introspec Energy Group…