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E-324 - Well Testing & Well Test Analysis

5 days REE/WELLTEST
Level
Proficiency
Audience
  • Newly-hired and 2-3 years experienced reservoir engineers, reservoir geologists, production engineers and experienced technicians willing to deepen their knowledge in well test analysis: geoscientists, petroleum engineers and production engineers moving towards Reservoir Engineering.
Purpose
  • This course provides a comprehensive knowledge about setting up, designing and interpreting well tests.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • discuss the theory of well test interpretation,
  • identify main flow regimes,
  • perform simple well test interpretation,
  • define or recommend a well test design.
Prerequisite
  • No prerequisites for this course.
Ways and means
  • Interactive lectures and exercises.
  • Hands-on practice based on synthetic and real data using hand and spreadsheet calculations and SAPHIR™ dedicated industrial software.

Introduction to well testing 0.5 day
  • Purpose of well testing.
  • Practical well test operations: types of tests, equipment, safety and environmental issues.
  • Definitions & typical flow regimes: radial flow, fractured reservoirs, limited reservoirs and closed reservoirs.
  • Productivity index, radius of investigation.
Basic equations & methods 1 day
  • Darcy's law and the diffusivity equation.
  • Time superposition, multirate testing.
  • Space superposition, boundary effect.
  • Pressure curves analysis.
  • Pressure derivative analysis.
Wellbore conditions 0.5 day
  • Wellbore storage and skin effects.
  • Infinite and finite conductivity vertical fracture.
  • Well in partial penetration.
  • Horizontal well.
  • Skin factors, geometrical skin and well deliverability.
Boundary models 1 day
  • One sealing fault model.
  • Two parallel sealing faults model/two intersecting sealing faults model.
  • Closed system model & reservoir limits testing.
  • Constant pressure boundary model.
Test design – Hands-on session 1.25 days
  • Rate history definition.
  • Time and pressure error.
  • Changing wellbore storage.
  • Phase segregation.
  • Interpretation procedure.
  • From the initial diagnosis to the final consistency check of the results.
  • Reporting and presentation of results.
  • Examples of test response.
Gas wells: review & applications 0.5 day
  • Hypothesis for gas wells testing. Darcy and non-Darcy flow.
  • Pseudo-pressure & inertial effects.
  • Gas wells deliverability:
  • Absolute open flow potential.
  • Houpert method.
  • Back pressure tests. Isochronal Tests. Modified Isochronal Tests.
Well testing: equipment & operational procedures 0.25 day
  • Clean up.
  • Surface equipment.
  • Downhole equipment.
  • Perforating.
  • Sampling.
2017 course calendar
Language Dates Location Tuition Register
Oct 16 - 20 Rueil €3,150 Online By email