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E-180 - Cased-Hole & Production Logging

  • Production engineers and supervisors, drilling and workover engineers and supervisors, wellsite geologists and witnesses
  • To provide a comprehensive knowledge of cased-hole logging techniques and production log interpretation, along with the industry’s best practices and procedures
Learning Objectives
  • To acquire an insight into well cementation control, corrosion
  • To determine characteristics of formations behind the casing and reservoir saturation
  • To carry out a quick interpretation of production logs
Ways and means
  • Short lectures and videos completed with practical exercises and case studies

Cement evaluation
  • Acoustic measurements (CBL - VDL)
  • Ultrasonic measurements (USIT - CASTV)
  • Other logs (temperature, isolation scanner)
  • Case studies, log examples
Corrosion evaluation
  • Origins of the corrosion process in the wells
  • Corrosion evaluation
  • Multi-finger Caliper
  • Electromagnetic and potential measurements
  • Ultrasonic logging
Formation evaluation in cased hole (saturation)
  • Logging tools for cased hole formation evaluation: spectral GR, sonic, resistivity, pressure & fluid sampling, density
  • Pulsed Neutron capture logs
  • Thermal decay time log
  • Thermal absorption log
  • Reservoir Saturation Tool
  • Interpretation: Time lapse technique - Gas detection
  • Determination of oil holdup and oil saturation
  • Reservoir performance monitor: gas view, fluid view - Case study
Production logging
  • Tools for acquisition of main parameters: caliper, flowmeter, gradiomanometer, manometer, temperature, holdup meter
  • Main characteristics (PVT) of the reservoir fluids (water, oil and gas)
  • Production log record (case study)
  • Determination of the fluid velocities and the fluid densities in the well
  • Pressure and temperature measurements
  • Flow characterization and modeling (Flow Scan Imager)
  • Production log interpretation: interpretation of a set of production logs by hand and also with the EMERAUDE™ software (Kappa Engineering)