Advanced Well Performance


Who should attend?

  • 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.
Audience :
  • Reservoir, well performance or production engineers and technicians.

Level : Proficiency

Course Content

  • WEEK 1

  • Introduction to production system

      • Introduction to well performance nodal analysis: inflow/outflow.
      • Overview of PROSPER™ software workflow:
      • PROSPER™: building initial well system file.
  • PVT data/PVT modeling

      • Oil & Gas PVT properties: bubble point, Bo, Rs, GOR, solids…
      • PROSPER™: building PVT model.
  • Reservoir properties & reservoir-wellbore interface

      • Reservoir rock & fluids: porosity, permeability, saturation, relative permeability, scales.
      • Reservoir behavior type.
      • Pay zone drilling, completion (open hole, cased hole), perforating.
      • Wellbore treatment: sand control, stimulations (acidizing, hydraulic fracturing).
  • Inflow performance/IPR modeling

      • 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

      • Flow in the wellbore: pressure gradient and Vertical Lift Performance (VLP) curves.
      • GLR, tubing head pressure, tubing ID impacts.
      • Monophasic vs. polyphasic flow: minimum flow rate/well loading:
      • PROSPER™: tubing correlations, VLP modeling.
      • Choke performance.
  • Well performance

      • Well deliverability nodal analysis: inflow x outflow:
      • PROSPER™: IPR + VLP natural flow well performance modeling.
      • Sensitivity study: prediction and analysis vs. reservoir pressure, PI, GLR, BSW, tubing ID.
  • WEEK 2

  • Artificial lift

      • 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.
  • PROSPER™ case study

      • Application of PROSPER™ to a comprehensive case study, from PVT modeling and matching, IPR + VLP building and matching, to natural flow performance, gas-lift and ESP design/performance prediction.

Learning Objectives

  • Upon completion of the course, participants will be able to:
  • select the adequate reservoir, fluid, near-wellbore zone, well completion and facilities characteristics related to well performance design,
  • select the remediation/stimulation and artificial lift methods,
  • model, forecast, assess, troubleshoot and optimize well performance.

Ways & 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.