This document provides information on subsurface geotechnical services offered by Andrew H. Cao, including petrosteering consulting, 3D geological modeling and geomodeling for various oil and gas and mining projects, geostatistical studies, and volume estimation. Services also include CO2 sequestration feasibility analysis and underground storage for waste disposal. The document emphasizes integrating various data sources into 3D models to evaluate reservoirs and design well trajectories and mining pits. Contact information is provided at the end.

1. Subsurface
Geotechnical Services
Andrew H. Cao, M.Sc. P.G.
Senior Geoscientist & Geomodeller
1
Calgary:
1-587-288-5079
Vancouver:
1-778-951-1068
AC.SGS@outlook.com
2023

2. Services：
• PetroSteer / GeoSteer Consulting Services
• Oil Sands ( SAGD/Mining) and Heavy Oil Projects
• Conventional Oil & Gas Projects
• Tight/Shale Oil & Gas Projects
• 3D Mining & Pit Design Projects
• CO2 Miscible Flooding & CCUS-EOR Projects
• Under Ground Storage CCS and Waste Disposal
• 3D Geostatistical Study & Geomodeling
• 3D Structure/Stratigraphic/Geobody/Property Modeling
• Geophysical/Petrophysical/Core/Dynamic Data Integration
• Volume Estimation & 2D Mapping with 3 Cases
2

3. PetroSteer / GeoSteer Consulting Services
 Well Trajectory Design Base on 3D Geomodels
 Real-Time Wellbore Optimal Placement
 Best Solution to Uncertainty and Sweet-Spots Detection
3

4. Oil Sands ( SAGD/Mining) and Heavy Oil Projects
 Special ways developed to build the 3D models and to evaluate and
develop oil sand (SAGD/Mining) and heavy oil reservoir.
 The 3D models built in three cases (upside, base and lowside cases)
based on the stochastic simulation result using different channel
ranges.
 The reserve estimation, net pay map, reservoir quality map and
simulation model were made from the 3D geological model.

5. Conventional Oil & Gas Projects
 Standard Industry Flow to Develop 3D Geomodels
 Geomodels Used for Evaluation and Development
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Facies Model
Stratigraphy Model
Structure Model
Upscaling
Simulation Seismic
Interpretation
Petrophysical &
Well Correlation
Geostatistical
Study
Petrophysical Model

6. Tight/Shale Oil & Gas Projects
 Geomodels Used for Evaluation and Well Placements
 Real-time Geosteering for Detection of Sweet Spots
6

7. 3D Mining & Pit Design Projects
 3D Geomodels Built with Core/Petrophysical/Geophysical Data
 2D Ore Maps & Cross-section Figures from 3D Geomodels
 Pit Design Based on 3D Geomodels and 2D Maps
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Total Volume/Bitum
enInPlace(TV/BIP)withPolygons
Shell OriginalPitwall Pitw
allA Pitwall B

8. CO2 Miscible Flooding & CCUS-EOR Projects
 Provide Detailed Reservoir Heterogeneity Model
 CO2 Miscible Flooding Feasibility Analysis & Simulation
 Enhanced Oil Recovery Up to 20%
8

9. Under Ground Storage CCS and Waste Disposal
 Carbon Capture, H2S, Radioactive and other Industrial Wastes
Considered Under Ground Storage in a Relatively Safe Way.
 Geological Analysis, Interpretation and Modeling for all Under Ground
Storage Purposes.
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Sand
Bar
Shale
Shale
Shale
Tight
Sand

10. 3D Geostatistical Study & Geomodeling
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Layer-Cake
Jigsaw-Puzzle
Labyrinth
Anastomosed
System
Braided
System
Shoreface
Basin ~ Sedimentary ~ Reservoir ~ Geomodel

11. 3D Structure/Stratigraphic/Geobody/Property Modeling
 Develop 3D Structure, Stratigraphic, LithoFacies and Property Models
from Scratch or Interpreted Results.
11

12. Geophysical/Petrophysical/Core/Dynamic Data Integration
 Develop Geomodels Using All Available Data Including Geophysical,
Petrophysical, Core, Test and Production Data.
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Well Data
Outcrop & Core Seismic Data Dynamic Data

13. Volume Estimation & 2D Mapping
 Volume Estimation and 2D Mapping with Uncertainty Analysis , which
including Base Case, Lowside Case and Upside Case.
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P90:
XXX
P50:
YYY
P10:
ZZZ
P10
P50
P90
P10 Case P50 Case P90 Case

14. Thank You and Please Contact
Me for Further Discussion
Andrew H. Cao, M.Sc. P.G.
Senior Geoscientist & Geomodeller
14
Calgary:
1-587-288-5079
Vancouver:
1-778-951-1068
AC.SGS@outlook.com