Petrophysics and Frac Optimization

Production and Operations Reservoir Descriptions and Dynamics


A successful completion program depends upon successful integration of multiple disciplines combining geological and engineering parameters.  Two important methods in this process are petrophysics and hydraulic fracturing optimization.  Accurate reservoir parameters and geo-mechanical models determined from petrophysical analysis provide the essential input that controls accuracy of frac modelling and thus the determination of the predictive optimal completion design.  For determining elastic properties of rocks for stimulation design, the raw log data is often inadequate due to rough borehole conditions and light hydrocarbon effects. Since stimulation design software expects data for the water filled case, the light hydrocarbon effect present in unconventional resources alone would lead to erroneous geo-mechanical rock properties, and thus in closure stress predictions which completely drives the frac model output. Add in some rough borehole effects, and you have a meaningless set of elastic properties for stimulation modeling.

This course presents a practical, repeatable solution using digital open hole log data to perform routine and advanced formation analysis, and how these results in conjunction with log reconstruction lead to more accurate stimulation optimizations.

This course will be split up into three (3) parts:

  • Petrophysical 15 step workflow to determine geo-mechanical rock properties
  • Fracturing model incorporation and calibration of petrophysical output
  • Fracturing optimization process

Learning Level


Course Length

1 Day

Why Attend?

Most of the multistage horizontal wells are cost is the fracturing, the prep and flow back. It depends on good information past from geology to engineering and skills to optimize a frac. Or do it by trial and error at $5MM to a $15MM/well or copy your neighbor. What seems like the more professional approach?

Who Should Attend

All members of the integrated teams at E&P companies: managers, geologists, engineers and techs. Services companies in the pumping, geology and engineering roles.


0.8 CEUs (Continuing Education Units) will be awarded for this 1-day course.

Cancellation Policy

To receive a full refund, all cancellations must be received in writing no later than 14 days prior to the course start date. Cancellations made after the 14-day window will not be refunded. Send cancellation requests by email to; by fax to +1.866.460.3032 (US) or +1.972.852.9292 (outside US); or mail to SPE Registration, PO Box 833836, Richardson, TX 75083.


Tim Leshchyshyn, P. Eng. has a chemical engineering degree majoring in computer process control from the University of Alberta with 20 years’ experience in the field of petroleum engineering.  As president of FracKnowledge, the only independent fracturing engineering group in Canada, one of five in the world, he leads a group of 25 consultants whose clients include 35 operators in 17 countries on five continents.  His work on conventional and unconventional oil and gas wells has included reviewing past fracs for design or operational improvements, optimizing frac designs, and executing current fracs. 

Leshchyshyn has also released the largest online frac and completions database for Canada and the United States. This database is tied to production, scanned well files, logs and various other documents, and used as a source for the details of this presentation.  He has 15 years of frac database experience tied to production.

In the past as an employee, he has worked for both E&P and frac companies.  His experiences include: teaching courses, optimizing horizontal multistage fractured and multi-client studies. Leshchyshyn is also the main inventor 20 fracturing patents and is an expert in frac fluid chemistry, proppants, and business development. He is a member of APEGGA, past board member of the SPE Calgary section, CSUR technical committee member and PTAC and is involved in organizing conferences, courses and other technical events. 

Dorian Holgate, is an associate in Spectrum 2000 with Ross Crain and is the principal consultant of Aptian Technical Limited, an independent petrophysical consulting practice. He graduated from the University of Calgary with a B.Sc. in Geology in 2000 and completed the Applied Geostatistics Citation program from the University of Alberta in 2007. After graduation, he began working in the field for BJ Services (now Baker Hughes) and completed BJ’s Associate Engineer Program.  Later, he joined BJ’s Reservoir Services Group, applying the analysis of well logs to rock mechanics to optimize hydraulic fracturing programs.

Holgate joined Husky Energy in 2005 as a petrophysicist and progressed to an area geologist role. He completed a number of petrophysical studies and built 3-D geological models for carbonate and clastic reservoirs.

Holgate is a member of APEGA, CSPG, SPE, SPWLA, and CWLS.