Production Logging

Course Description

This short course introduces basic concepts used for production logging in vertical wells and progresses to more complex cases of highly deviated and horizontal wells, explaining the application, limitations and evolution of the different sensors used in the PL services. Most importantly, the course empowers the attending delegates to tailor data acquisition programs selecting the best set of sensors depending on fluids being produced, well deviation, completions type and objective of the log. The discussion of the response and quality control of each sensor is used to guide the attendees on the process of interpretation, starting from individual sensors and evolving to the combination of two or more sensors to determine fluid type and its quantitative contribution by each of the producing intervals. This short course is illustrated with practical exercise after each topic and quizzes at the end of each day to help the attendees absorb and retain the important concepts of each day and to help the tutor gauge the progress as course progresses.

 

 

Course Objectives

To introduce the principles, applications, techniques and procedures for production logging (PL), including limitations and optimum configuration of the different sensors used for the production logging. The aim is also to help professionals with functional role or interest in this area to use PL proactively and to use the well information to design and plan data acquisition as part of the solution to flow assurance, well integrity and diagnosis.

 

Who Should Attend

Engineers in exploration, production and completions departments; reservoir, production, well integrity and flow assurance engineers, petrophysicists.

 

 

Course Content

Day 1

  • Definitions and terminology used in production logging
  • Fluids behaviour and flow regimes at different downhole conditions
  • PVT and its importance to production logging interpretation
  • Spinner velocity measurement tools
  • Spinner response in different fluid regimes and fluid mixtures
  • Exercise #1, qualitative interpretation of spinner response
  • Pressure and Temperature measurements
  • Exercise #2, qualitative interpretation of temperature response
  • Fluid Holdup measurements (fluid density)
  • Exercise #3 computation of holdup from fluid density and PVT data
  • Fluid Holdup measurements (Electrical Probe Measurements)
  • Exercise #4 detecting first oil entry from electrical probes response
  • Fluid Holdup measurements (Optical Probe Measurements)
  • Exercise #4 detecting first gas entry from optical probes response
  • Exercise #5 three-phase holdup interpretation from the probes
  • Quiz #1

Day 2

  • Quiz #1 review
  • Fluid Holdup measurement (Dielectric-capacitance measurements)
  • Exercise #6 computing Holdup from capacitance measurements
  • Pulsed Nuclear measurements applied to Production Logging
  • Exercise #7 estimating best setup for water velocity measurement
  • Spinner velocity quantitative interpretation
  • Exercise #8 computing fluid mixture velocity from spinner curves
  • Pressure and Temperature interpretation
  • Exercise #9 using P-T measurement to determine well stability
  • Slip velocity and holdups relationship (models)
  • Exercise #10 estimating slip velocity from mixture velocity and holdups
  • Conditions affecting production logging sensors
  • Production logging interpretation equations and techniques
  • Production logging interpretation equations and techniques
  • Quiz #2

 

Day 3

  • Quiz #2 review
  • Production logging at deviated and horizontal wells
  • Exercise #7 estimating flow-regimes from fluids holdups and velocities
  • Principles of the algorithms used in computerised interpretation
  • Combining the production logging measurements
  • Single phase interpretation
  • Exercise #8 single –phase PLT log manual interpretation
  • Two-phase interpretation
  • Exercise #9 two-phase PLT log manual interpretation
  • Three-phase interpretation
  • Exercise #10 example of three-phase PLT and qualitative interpretation
  • Quiz #3

 

Day 4

  • Quiz #3 review
  • Data acquisition planning
  • Exercise #11 practical example of sensor selection
  • Designing Production logging program
  • Exercise #12 practical design of a logging program
  • Practical examples of production logging
  • Quiz #4
  • Review of Quiz #4
  • Q & A session

 

Duration

4 days

 

Location

Date

 

Dubai, United Arab Emirates

 

 

14-17 August 2017

 

Houston, Texas, United States

 

 

17-20 October 2017

 

London, United Kingdom

 

 

7-10 November 2017