Re-Fracturing - Candidate Selection and Design

Production and Operations


If I want to re-frac a well “just because” – maybe I am disappointed in the production – that is most likely a BAD idea. This course discusses how I can go about selecting a candidate (there are no really “good” candidates since having to re-frac indicates original fracs were not adequate) that will benefit from such a workover. Then, what extra considerations are involved in a treatment design.

  • What makes a good (or NOT) re-frac candidate
  • How does depletion affect the re-fracture for good and bad
  • What might be different about re-fracture treatment design

Learning Level

Intermediate (Useful to be familiar with fundamentals of hydraulic fracturing)

Course Length

1 Day

Why Attend?

If you are considering the possibilities of re-fracturing operations, it is critical to understand all the various conditions that must be considered. These include: geomechanics of how production from this and offset wells may have changed in situ stresses, how proppant from the original frac may impact fracture propagation for the re-frac, and understanding specifically what must be accomplished by the re-fracture treatment (make longer fractures, inject stronger proppant to restore kfw, fracture new rock, …).

Who Should Attend

This course is of interest to petroleum engineers involved (directly or indirectly) in candidate selection, design and evaluation of re-fracturing treatments. It would be beneficial for participants to have a basic understanding of hydraulic fracturing and well completion concepts. However, the course is also of interest/value for reservoir engineering and management to understand what potentially can (and cannot) be achieved with re-fracturing.


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

Cancellation Policy

All cancellations must be received no later than 14 days prior to the course start date. Cancellations made after the 14 day window will not be refunded.  Refunds will not be given due to no show situations.

Training sessions attached to SPE conferences and workshops follow the cancellation policies stated on the event information page.  Please check that page for specific cancellation information.

SPE reserves the right to cancel or re-schedule courses at will.  Notification of changes will be made as quickly as possible; please keep this in mind when arranging travel, as SPE is not responsible for any fees charged for cancelling or changing travel arrangements.

We reserve the right to substitute course instructors as necessary.

Full Regional cancellation policies can be found at the “Cancellation Policy” link on the SPE Training Course Catalog page:


Michael B. Smith is president and founder of NSI Technologies, a consulting firm in Tulsa, Oklahoma. He has more than 20 years of experience in rock mechanics, well completions, and hydraulic fracturing. Smith has written more than 35 technical papers and holds six patents. He also served as an SPE Distinguished Lecturer and wrote two chapters in the SPE Monograph, Recent Advances in Hydraulic Fracturing. Smith recently received the Lester C. Uren Award for his technical contributions to hydraulic fracturing.