Re-fracturing Fundamentals: Level 2 (An Advanced Version)

Production and Operations

For a beginner to intemediate offering of this course, see Introduction to Re-fracturing Fundamentals.


Refrac Level 2: Case Studies and Application Advancement

  • Review of field case studies and their production / economic success
    • Incremental produced total volume versus accelerated production
  • Advancements in applying refrac design and their execution
    • New technology
    • Results

Learnings from industry will include:

  • Re-pressurizing for a refrac
  • Treating the whole well versus treating the well in segments
  • Diagnostic results from refrac
  • Choices and experiences with different diverters

Learning Level


Course Length

1 Day

Why You Should Attend

You should attend if you already know the basics of refracturing and you want to go more in-depth. You will benefit from analysis of all the learnings, and advances that have been reported as working (or not working I guess in a few cases).

Who Should Attend

This course is intended for production and completion engineers, geologists, field operation staff, and economists who are familiar with the fracturing process, interested in how refracturing is becoming a major future activity, and to catch up on what has already been done.


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


Tim  Leshchyshyn Tim Leshchyshyn, P. Eng. has a Chemical Engineering Degree from the University of Alberta with 20 years’ experience in the field of Petroleum Engineering. As president of FracKnowledge / Fracturing Horizontal Well Completions Inc, the only independent fracturing engineering group in Canada, one of four in the world, he leads a group of 25 consultants whose clients include 35 operators in 17 countries in the North and South America, Europe, Asia, and Australia, on both conventional and unconventional oil and gas wells. The work has included review past fracturing for improvement opportunities, executing current fracturing for quality assurance/customize designs per stage, designing optimal fracs on future wells using rock mechanics/frac simulators and bidding out completions programs.
He has also released online the largest frac and completions database for Canada and the United States. This database is production tied to fracturing, and includes scanned well files and various reports, which are also used as a source for the details of this presentation. Tim has 14 years of completions and frac database experience.vv

In the past as an employee, he has worked for both E&P and frac companies. Experience includes teaching courses, optimizing horizontal multistage fractured wells using petrophysics/geomechanics, frac simulators and empirical database production trending. Leshchyshyn is also the main inventor on over 17 fracturing patents and is an expert in frac fluid chemistry systems, proppant science, unconventional frac supervision, regional interdisciplinary studies and business development. He is a member of APEGGA, SPE board of director, CSUR and PTAC and helps organize conferences, courses and technical events.