GeoMechanics Specialist

Description

General Geomechanics Study

• Data integration & Interpretation
  • Integrate wellbore data (logs, core, drilling parameters) to build geomechanics models.
  • Interpret stress regimes, fault reactivation potential, and wellbore stability.
• Modelling & Simulation
  • Develop 1D/3D geomechanics models for field development and well planning
  • Simulate stress changes due to depletion, injection, and hydraulic fracturing.
• Wellbore Stability Analysis
  • Evaluate borehole collapse, breakout, and sanding risks.
  • Recommend mud weights and casing programs to mi􀆟gate instability.
• Fracture Mechanics
  • Assess natural fracture networks and their impact on reservoir performance.
    • Support stimulation design and fracture containment analysis.
• Geomechanics Risk Assessment
  • Identify and mitigate risks related to fault reactivation, casing deformation, and subsidence.

Sanding Prediction Study

• Evaluating reservoir stress conditions & rock mechanical properties to access the risk of sand production, determine critical drawdown limits, and support mitigation strategies for wellbore and completion stability

Pore Pressure & Fracture Gradient Study (PPFG)

• PPFG Prediction & Calibration
  • Predict pore pressure and fracture gradient using seismic, log, and drilling data, especially in highly depleted reservoir environment.
  • Calibrate models with MDT, LOT/XLOT, and formation pressure tests
• Well Planning Support
  • Provide PPFG inputs for casing design, mud weight window, and kick tolerance.
  • Collaborate with drilling engineers to optimize well trajectory and mitigate risk
  • Regional PPFG Studies
    • Conduct basin-wide PPFG studies to support exploration and appraisal.
    • Develop PPFG maps and trends for strategic planning.
  • Real Time Monitoring
  • Support real-time PPFG monitoring during drilling operations.
  • Update models based on drilling events (kicks, losses, wellbore instability).

Carbon Capture & Storage (CCS)

• Geomechanics Studies & Modelling
  • Develop regional understanding of in-situ stress regimes, stress anisotropy, magnitude, and orienta􀆟on relevant to CO injection containment.
  • Characterize rock mechanical properties to quantify compaction and deformation within coupled reservoir–geomechanical simulations.
  • Conduct subsidence prediction and evaluate potential risks to surface facilities and infrastructure.
  • Build and calibrate 1D geomechanical models using leak-off tests, laboratory measurements, in-situ stress data, and pressure test results.
  • Assess caprock integrity, fault stability, and potential fracture propagation associated with injection pressures and stress evolution.
  • Support wellbore stability analysis and evaluate risks of CO-induced mechanical failure or leakage pathways.

Coupled Dynamic – Geomechanics / Geochemical Modelling

• Develop 3D coupled geomechanical models to evaluate maximum allowable injection pressures, potential fault reactivation, and reservoir deformation, integrating pressure, porosity, and permeability fields from dynamic simulations.
• Calibrate models using pre- and post-CO injection laboratory tests, core data, and field measurements.
• Perform reactive transport modelling to predict long-term CO migration, mineralization, and evolution of rock properties due to geochemical interactions.
• Evaluate feedback mechanisms between geomechanical stress changes and geochemical alteration of the storage complex.
• Reactive Transport Modelling – Batch modelling initialized with geological grid model with rock properties, well location, injection volume / rate & composition (prediction on long-term CO2 distribution, geochemical changes & evolution of rock properties due to CO2 injection)

Monitoring & Risk Assessment

• Support Monitoring, Measurement, and Verification (MMV) planning by defining geomechanical indicators and monitoring requirements.
• Contribute to long-term containment assurance studies and post-injection stability assessments.
• Provide input to risk assessments, safety cases, and regulatory documenta􀆟on concerning geomechanical integrity.

Requirement

• University degree in Engineering, Science, Geoscience, Geomechanics or Mathematics.
• Minimum 15 years of experience in relevant oilfield (drilling PPFG/geomechanics) with operator or service company.
• Strong communication skills with the ability to distil complicated technical work to a variety of stakeholders.
• Ability to work with cross-disciplinary teams and competing priorities to deliver challenging wells.
• The candidate must be familiar with PPFG, geomechanics, drilling and subsurface aspects of Well Planning and Execution for both FDP and CCS proposal.
• Previous PPFG experience with an operator; previous geomechanics experience such as wellbore stability and forma􀆟on pressure integrity tests, strong geology and geophysics background and experience with well planning.
• Experience genera􀆟ng pre-drill PPFG forecasts for offshore wells in both development and exploration settings.
• Experience in CCS projects related to geomechanics analysis and requirements.
• Awareness of Geology, Petrophysics, Basin Modelling, Processing Geophysics, Reservoir Geomechanics, Drilling Engineering, Rig Systems, and Well Control.
• Software proficiency and coding capability (e.g., VBA, Python, Techlog and Petrel).