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19–20 OCTOBER 2017, MOSCOW
TRAINING COURSE
"PRACTICAL USES OF GEOMECHANICS MODELING FOR DRILLING, PRODUCTION AND DEVELOPMENT OPTIMIZATION"

The course covers the basic principles and fundamentals of geomechanics, including theory and practice skills:
  • Understanding the origin of stresses in the geological settings as well as how well logs and measurements can help in assessing the in-situ stress conditions.
  • Data requirements for geomechanical modelling.
  • Overpressure mechanisms, methodology and tools for pore pressure calculation and forecast.
  • Rock mechanical properties – how to measure and calculate, evaluate uncertainties for in-situ stress calculation.
  • Wellbore instability issues, methods for calculation and forecast. 
The course is designed in such a way that, after the theoretical part students could implement gained knowledge in practice when building Geomechanical Earth Model for purposes and tasks arising at different stages of oilfield life cycle. The emphasis is on the calculation of static elastic and strength properties, pressures and stresses, analysing wellbore stability and sensitivity to input parameters, forecasting of safe mud window for a planned well trajectory. 
The course also includes an introduction to reservoir geomechanics. The influence of field development (changes in pressure and temperatures) on the stress state will be considered, which in turn can lead to undesirable effects and risks in drilling and completion of wells, formation stimulation (fracturing, injection and flooding), production decline and to early water breaking through.

COURSE OBJECTIVES

At the end of the course students will get an idea of what geomechanics is for and learn some practical aspects of its implementation:
  • Plan well logging and core sampling programs required for geomechanics modelling.
  • Use standard and special logs, well and core measurements for calculation of pore pressure and in-situ stresses, wellbore stability and sensitivity analysis for vertical, deviated and horizontal wells.
  • Analyse and interpret well micro-scanners (imagers), acoustic anisotropy, borehole measurements and well tests for the purpose of geomechanical parameters calculation and model calibration.
  • Read and understand the meaning of wellbore stability and sensitivity plots, carry out basic calculation for drilling and fracturing optimization purposes.

WHO SHOULD ATTEND

Geology, geophysics, field development, drilling managers as well as geomechanics engineers and specialists. Completion of training course "Geomechanics Fundamentals" will be the benefit.

COURSE OUTLINE

Day 1 COURSE OUTLINE INTRODUCTION TO GEOMECHANICAL MODELLING

  • Intake test on geomechanics fundamentals.
  • Extended process of Geomechanical Model building along wells and in space (3D-4D) and its application at different stages of oilfield life cycle.
  • Analysis of reference information, understanding of problems, goals and objectives.
  • Construction of the «Time-Depth» graph on basis of well-drilling history.
  • Working with key data, assumptions and analysis of potential uncertainties in calculations.
  • Introduction to the anisotropy of elastic properties and stresses: impact on a safe mud window, hydraulic fracturing and field development.

Day 2 GEOMECHANICAL EARTH MODEL BUILDING, CALIBRATION AND CALCULATIONS VERIFICATION

  • Construction of facies mechanical model.
  • Calculation of elastic-strength properties.
  • Vertical intensity and pore pressure calculation.
  • Abnormal high-pressure forecast.
  • Calculation of horizontal stresses and model calibration.
  • Calculation of wellbore stability: vertical, inclined, horizontal. Sensitivity analysis to input parameters, forecast for a planned trajectory.
  • End-off-course test.

SPECIAL INSTRUCTIONS

Participants must bring a laptop to perform tests and if it is possible to have a minimum set of data for geomechanical calculations.

INSTRUCTOR

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Ruslan Melikov
General Manager of Geomechanics, Rosneft

Ruslan Melikov is experienced engineer in G&G and Geomechanics for Oil&Gas industry (40+ projects in experience portfolio), based in Russia. His oil and gas expertise include quantitative seismic interpretation, shallow hazards assessment, structural modelling, seismic facies and attribute analysis including potential reservoir pay zone forecast and its properties, risks and uncertainty assessment.
Since 2011 he joined Geomechanics Team as geomechanics-engineer for consulting projects worldwide – responsible in providing solutions to reduce drilling/completion risk, to optimize well placement, reservoir performance, and to assess geomechanics related risk in reservoir management, such as borehole collapse, completion damage, sand production issues, faults/fractures reactivation, cap rock integrity and top surface subsidence/uplift.