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E-464 - Advanced Well Performance

  • Reservoir, well performance or production engineers and technicians.
  • This course provides the practical, comprehensive understanding and skills needed to master well performance and make significant contributions to field productivity studies and well performance monitoring.
Learning Objectives
  • Upon completion of the course, participants will be able to:
  • select the adequate reservoir, fluid properties, near-wellbore zone, well completion and facilities related to well performance design,
  • select the remediation/stimulation and artificial lift methods,
  • model, forecast, assess, troubleshoot and optimize well performance.
  • No prerequisites for this course.
Ways and means
  • Use of the software program PROSPER™ (training license provided for the duration of the course).
  • Short lectures alternating with hands-on sessions.
  • Course ends with a 2-day integrated case study.

Week 1
Introduction to production system 0.5 day
  • Introduction to well performance nodal analysis: inflow/outflow.
  • Overview of PROSPER™ software workflow:
  • PROSPER™: building initial well system file.
PVT data/PVT modeling 0.5 day
  • Oil & Gas PVT properties: bubble point, Bo, Rs, GOR, solids, …:
  • PROSPER™: building PVT model.
Reservoir properties & reservoir-wellbore interface 0.5 day
  • Reservoir rock & fluids: porosity, permeability, saturation, relative permeability, scales, corrosion.
  • Reservoir behavior type.
  • Pay zone drilling, completion (open hole, cased hole), perforating.
  • Wellbore treatment: sand control, stimulations (acidizing, hydraulic fracturing).
Inflow performance/IPR modeling 1.5 days
  • Flow in the reservoir: Productivity Index (PI), empirical Inflow Performance Relationship (IPR).
  • Back pressure equation for gas wells.
  • Global skin: formation damage, perforation, partial penetration, deviation:
  • PROSPER™: IPR modeling exercise.
  • Horizontal drains:
  • PROSPER™: horizontal drain modeling.
Wellbore flow, outflow performance/VLP modeling 1 day
  • Flow in the wellbore: pressure gradient and Vertical Lift Performance (VLP) curves.
  • GLR, tubinghead pressure, tubing ID impacts.
  • Monophasic vs. polyphasic flow: minimum flow rate/well loading:
  • PROSPER™: tubing correlations, VLP modeling.
  • Flow in a choke.
Well performance 1 day
  • Well deliverability nodal analysis: inflow x outflow:
  • PROSPER™: IPR + VLP natural flow well performance modeling, prediction and analysis vs. reservoir pressure, PI, GLR, BSW, tubing ID.
Week 2
Artificial lift 3 days
  • Gas lift: fundamentals, unloading procedure, surveillance and troubleshooting:
  • PROSPER™: gas-lift design, prediction, analysis and diagnosis.
  • Electrical Submersible Pump (ESP): components, design, problems:
  • PROSPER™: ESP design, prediction, analysis and diagnosis.
  • Rod pumping and jet pumps fundamentals.
  • Comparison of the artificial lift methods.
Prosperâ„¢ case study 2 days
  • Application of PROSPER™ to one comprehensive case study, from PVT modeling and matching, IPR + VLP building and matching, to natural flow performance and gas-lift design/performance prediction.