John Hirschmiller
Senior Geologist, Water Disposal - Unconventional Division @Whitecap Resources Inc.
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WORK HISTORY
Senior Geologist, Water Disposal - Unconventional Division @Whitecap Resources Inc.
Calgary, AB, CA
Lead geological support for subsurface water disposal related to Montney and Duvernay oil and gas operations- Build and maintain detailed geological models to identify and characterize suitable disposal zones- Interpret well logs, core data, and work with geophysicists to interpret seismic to evaluate reservoir quality, seal integrity, and pressure regimes- Select and recommend optimal disposal well locations based on geological, engineering, and regulatory inputs- Collaborate with asset teams including development, drilling, completions, and regulatory to align water strategies with broader field plans- Provide input on disposal well design, drilling risks, and formation evaluation- Support regulatory submissions with detailed technical documentation and analysis- Monitor disposal well performance and update geological models with operational and surveillance data- Ensure water management practices are technically sound, safe, efficient, and compliant with regulations
EDUCATION
Dalhousie University
Bachelor's Degree, B.Sc. Earth Sciences (First Class Honours)
NAIT (Northern Alberta Institute of Technology)
Associate's Degree, Dip. Geological Technology (Honours)
SKILLS
ABOUT JOHN HIRSCHMILLER
Geoscience leader with 15+ years of experience in oil & gas, carbon capture and storage (CCS), geothermal energy, and new energy development. Proven expertise in reservoir characterization, geophysical and petrophysical integration, risk assessment, and project execution. Deep knowledge of Western Canada’s conventional and unconventional reservoirs, with a focus on seismic interpretation, subsurface modeling, and regulatory compliance.Currently focused on subsurface water disposal for oil & gas operations of the Montney and Duvernay formations at Whitecap Resources. Responsibilities include geological evaluation of disposal zones, well location selection, subsurface modelling, and supporting injection feasibility and containment integrity.Previously led geoscience efforts for Whitecap’s CCS and New Energy initiatives, integrating geophysics, petrophysics, and geomechanics to evaluate storage potential, injection strategies, and containment security.Held prior technical leadership roles at GLJ Ltd, delivering reservoir studies, asset evaluations, and A&D support across oil & gas, CCS, and geothermal projects.Recognized for the ability to translate complex subsurface data into clear, actionable insights that inform strategic decisions, regulatory filings, and asset development planning.
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