Introduction to Log Interpretation and Quality


DAY 1: Introduction to Log Parameters, Resistivity, SP, Gamma Ray and Porosity

Objective: by the end of this training day trainees will be able to:

• Understand basic logs and permeability concepts
• Read Resistivity logs and determine permeability indications
• Use the gamma ray and sp log to determine "potential" reservoir rocks
• Use Micro Resistivity logs to indicate permeability
• Understand how "Porosity" logs determine porosity
• Use Photoelectric log to help determine lithology

DAY 2: Topic: Determining porosity, gas effect, and lithology from logs and calculating water saturation.

Objective: by the end of this training day trainees will be able to:

• Determine porosity from Density, Neutron and Sonic logs
• Use Neutron and Density and photoelectric logs to determine lithology
• Use Neutron and Density logs to determine gas effect on logs
• Correct porosity calculations for gas
• Find potential pay zones from logs
• Calculate water saturation using Archie equation

NOTE:  Day 3 has been updated to include an introduction to the evaluation of rocks with organically rich materials and with extremely low permeability. These potential reservoirs are sometimes referred to as a resource rock or "shales". This section includes a discussion of geochemical logs and information from cores/log for Total Organic Carbon (TOC).

Since the success of fracture treatments are a significant part of the overall production for these reservoirs a section has been included on introduction to rock mechanics for both vertical and horizontal wells. In addition, current completion techniques for fracturing horizontal wells will be discussed.

DAY 3: Topic: Methods used to recognize a quality log and Logging Tool Limitations

Objective: by the end of this training day trainees will be able to:

• Use several methods to assist in evaluating log quality
• Have a better understanding of depth control and its importance
• Understand the environmental effects upon logs
• Determine which log will work best in which environment
• What can a tool be expected to do or not to do
• Review computer aided "quality" logs to help determine log quality



Gary Batcheller has over 30 years experience in field operations and training in the principles and applications of logs used in the Petroleum Industry. He has developed and presented log training course world wide to over 1,500 students. His classes utilize an "Interpretation at a Glance Technique" developed by Gary through his many years of experience. He received a BS degree in Physics from Texas Technological University, and is a member of SPE, API and SPWLA.

G101133Q Apr 7 - 9 8:00 am - 4:00 pm
Mon,Tue,Wed  $1,095.00
($1,120.00 out-of-state)
Midland College PPDC Building
Registered: 10 Note: The class will meet from 8 am - 3:00 pm on the last day, April 9th. 20.0 Hours

Midland College is accredited by the Commission on Colleges of the Southern Association of Colleges and Schools to award certificates
and associate and baccalaureate degrees. Contact the Commission on Colleges at 1866 Southern Lane, Decatur, Georgia 30033-4097
or call 404-679-4501 for questions about the status of Midland College.

Midland College is an Equal Opportunity Employer/Educator

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