Training and Presentations

PZI has put together a series of advanced petrophysical training courses which are tailored for the unique problems and conditions we need to understand to be successful in the petroleum business.  At present, no public courses are currently scheduled for 2018, but if you are interested in a course please let us know.  We usually focus our courses on our local California market, and they are intended to provide practical information that attendees can apply to their jobs immediately. 

All courses can be customized for in-house presentation by focusing on topics of particular interest and/or by including company-supplied class examples.

Available Courses


Are you interested in attending a local training course, or recommending one to a colleague?  New courses we are planning include Geology for Non-Geologists,   Logs and Log Analysis for California, Coring and Core Analysis .  Returning favorites are the Old Electric Logs course and Shaly Sand Log Analysis.  Please let us know if you would like to attend any of these courses, or if there is another course you think we should offer. 

Logs and Log Analysis For California
DATE: Next Offering To Be Announced

Successful operations today requires current state of the art petrophysical evaluation that properly addresses the complexities of partially-depleted fields, low-permeability zones, thermal projects in sands with lower oil saturations, identifying bypassed pay in older wells, and more.  Dated, simplistic interpretation methods designed for simple reservoirs are misleading and can be very costly in terms of missed opportunities or money spent for resources that are not really there.  The purpose of this course is to provide an overview of the models and workflows required to generate practical solutions to problems unique to California.  The goal is to provide attendees with sufficient knowledge to:

 - Select the appropriate logging suites and coring programs
 - Utilize previously-acquired log and core data
 - Assist in developing a charaterization plan for existing reservoirs and new discoveries
 - Select the correct services provided by the petrophysical support team   

Who Should Attend: Geologists, engineers, reservoir modelers
This course is a prerequisite for the Shaly Sand Analysis course

This 1-day course will be led by Deborah M. Olson, President of PayZone Inc.
Shaly Sand Log Analysis

Conductive clays in a reservoir interval have the effect of causing the water saturation to appear higher than it really is in a resistivity-based log analysis.  This problem can become acute in a fresh-water sand where the clays may be more conductive than the formation water.  With increasing costs of operations, it becomes important to characterize reservoir properties accurately as a basis for sound business decisions.  We have taught this course many times over several decades, and have modified it for this year to include more California problems and examples.  Since all serious formation evaluation is now done on computers, classroom exercises are set up in petrophysical software which will be provided for use by attendees.  Topics include:

 - The nature of reservoir clays and the computation of clay volume from log indicators
 - Total and effective porosity and how to calculate accurate values for sands, shaly sands, and siliceous shales
 - Theory and practice of calculating resistivity-based water saturation from the Dual Water model
 - Introduction to calculation of water saturation from capillary pressure data
 - Workshop for attendees to bring their own log examples for question and answer

Attendees need to bring a laptop running Windows 7 or higher for the classroom exercises.  A prerequisite for this course is our Logs and Log Analysis for California course, or basic understanding of logging tools, methods, and log responses.

2 days, schedule TBD

Geology for Non-Geologists: What You Need to Know For California

This is a practical course for engineers, field personnel, and others working in California oilfields who need to understand more about how geology affects field operations and well drilling/completion decisions.  Though others offer similar courses, they do not cover the unique aspects of our local geology that can have a strong impact on all other oilfield activities.  Topics to be discussed include:

 - Origin and occurrence of petroleum
 - Sands, shales, and diatomite: benefits and problems for drilling and operations
 - The relationship of porosity, permeability, and water saturation to rock type
 - Structural geology: what are the main structural features of a reservoir, and why are they important
 - Stratigraphy: what is it, and how do geologists use stratigraphic concepts in reservoir characterization
 - The role of clays and silt in completion decisions and operations
 - Introduction to well logs

2 days, schedule TBD

Old Electric Logs

We have presented this course several times and it is always popular.  Old electric logs (E-logs) were standard from the first days of wireline logging through the early 1960's, and are still run today in water wells.  They are found in older fields worldwide and may be either a significant source, or the only source for field data.  E-logs are not the same as modern logs and it is necessary to understand how they are different so that they can be used correctly.  However, there is a significant amount of information in these logs and they can provide valuable insight into reservoir conditions decades ago, or indicate possible bypassed pay.  Course topics include:

 - Electric logging tools and theory
 - How to interpret correctly the responses of the various curves
 - Examples of electric log interpretation

1 day, schedule TDB

Speakers Available!

Our staff often give presentations to local chapters of professional societies, at annual meetings, and occasionally in other locations also.  If your group is interested in one of our speakers, please contact us.  Links to the slide sets for some current and past presentations are located on the Current Research page.