SPE/ICoTA Workshop: Refracturing Through Optimized Interventions 9 - 10 Oct 2018 Hyatt Regency Hill Country San Antonio, Texas, USA


Monday, October 08

08:00 - 17:00
Training Course: Shale Selection, Completions, Fracturing and Production
Ticketed Event
Instructor(s) George E. King

This course acquaints participants with the basics of oil and gas shale evaluation and current shale selection, well completion, fracturing, and production technologies for shale reservoirs. The interactive format includes field data, current approaches and use of technologies suited for shale developments. Technologies include logging, frac interval selection, multistage fracturing in horizontal wells, and a summary of field data from many shale plays.


  • Candidate selection criteria to identify shale “sweet spots”

  • Complex fractures and role of geomechanics

  • Well orientation, optimum length and perf cluster design

  • Optimizing well completions and stimulations

  • Fracturing risk estimation: strengths and areas to improve

  • Water sources, treatment, reuse and disposal

  • Predicting production, estimating decline and well start-up suggestions

  • Surface equipment and production operations

Learn more about this training course.

17:30 - 19:00

Tuesday, October 09

07:00 - 08:00
08:00 - 08:10
08:10 - 08:40
08:40 - 10:10
Session 1: Selection Process for Refracturing Candidates
Session Chairpersons Sam Schroeder, ConocoPhillips; Tom Walker, OXY; Dave Allison, Anadarko
Speaker(s) Mike Smith, NSI Tech; Jason Baihly, Schlumberger; Bob Barba, Integrated Energy Services, Inc.

This session provides insight on how to choose the best refracturing candidates. A rigorous screening process can greatly improve the odds of success. Presentations will provide attendees with an awareness of the intricacies necessary for well selection required for successful refrac campaigns.

10:10 - 10:30
10:30 - 12:00
Session 2: Intra- and Inter-well Fracture-driven Interactions Between Horizontal Wells
Session Chairpersons Ali Daneshy, Daneshy Consultants; Sam French, BP; Robert Coon, PetroFrac Oil Tools
Speaker(s) Ali Daneshy, Daneshy Consultants; George King, Apache Corporation; Wolfgang Deeg, Devon

There is abundant field data pointing to communication between hydraulic fractures created in the same or in adjacent horizontal wells. Important consequences of these interactions include uneven production distribution between fractures in the same well and production interference between adjacent wells. Understanding the nature, cause, and effect of these interactions is critical for optimizing various production operations, including re-fracturing. This session will discuss the different types of intra- and inter-well communications, their causes, how to identify them, and attempts to reduce their negative effects.

12:00 - 13:30
13:30 - 15:00
Session 3: Completions and Coiled Tubing Intervention - Past, Present, and Future
Session Chairpersons David Traugott, NOV; Robert Coon, PetroFrac Oil Tools; Tom Walker, OXY
Speaker(s) Mike McKown, NCS; Brad Holms, Comitt Well Solutions; Jenna Robertson, Thru Tubing Solutions

This session will focus on completion and coiled tubing technologies that are directly involved in refrac applications. These technologies include but are not limited to: (1) new or improved completion hardware such as, expandable and cemented liners, packers, plugs, sliding sleeves, dissolvables, etc.; (2) innovative implementation of completion and/or coiled tubing systems; (3) new design methodology or tools; (4) case histories, including design and execution of best practices, operations efficiencies and economic considerations.

15:00 - 15:30
15:30 - 17:00
Session 4: Diversion and Zonal Isolation
Session Chairpersons Luis Castro, Baker Hughes; Mojtaba Shahri, Apache Corporation; Neil Modeland, Halliburton
Speaker(s) George Norton, OXY; Dale Larsen, New WellTech; Brittany Elbel, Halliburton

The session will explore diversion and zonal isolation options to assure re-fracture treatments are placed in the targeted locations for optimum results. These techniques have historically included chemical, ball diversion and other solid diversion materials. The session will explore the results of these applications being deployed. Additionally, new materials and techniques to improve diversion and zonal isolation will be discussed.

17:00 - 18:30
Networking Reception and Poster Session

The Poster Session will be held in conjunction with the Reception on Tuesday evening. The Poster Session will have topics that cover all aspects of technologies and case histories relevant to ReFracturing. The poster owners will be present during the poster session to explain and answer questions about the topics on their posters. We encourage all attendees to interact with each other during the reception, and rotate through the posters with questions and requests.

Interested in presenting a poster? 

Complete the Poster Submission Form (pdf) by 31 July 2018

Wednesday, October 10

07:00 - 08:00
08:00 - 09:30
Session 5: Refrac Design and Modeling
Session Chairpersons Ross Rucker, PropTester; Ali Daneshy, Daneshy Consultants; Jason Baihly, Schlumberger
Speaker(s) Ali Rezaei, University of Houston; Mukul Sharma, University of Texas; Sheldon Moos, Devon

Designing a refrac job requires an operator to have a holistic view of the geomechanics of the reservoir, performance of neighboring wells, initial completion design and many more factors that need to be investigated prior to the actual field test. The design will have the ultimate effect on the success of a refrac both in vertical and horizontal wellbores. To have a successful design, we rely on simulation and modeling completed prior to the test. This session focuses on the types of modeling that give insights for designing a refrac job.

09:30 - 10:00
10:00 - 11:30
Session 6: Diagnostics and Surveillance Panel
Moderator(s) Dick Leonard, ProTechnics; Neil Modeland, Halliburton; Sam Schroeder, ConocoPhillips
Speaker(s) Sean Machovoe, Halliburton; Chad Senters, ProTechnics; Michael Thelen, Oasis Petroleum

Common concerns that arise around horizontal well refracturing are often centered around stimulation effectiveness and analyzing the end result: How much lateral length coverage can be achieved? Do the isolation methods work? Has new rock been contacted? Pairing the proper diagnostic tools with refracturing opportunities can help the industry better address these concerns. This session will present effective diagnostics solutions and refrac case histories that help enable the sub-surface insight needed to optimize horizontal fracturing.

11:30 - 13:00
13:00 - 14:30
Session 7: Future and Emerging Technologies
Session Chairpersons Jason Baihly, Schlumberger; Luis Castro, Baker Hughes, a GE Company; David Traugott; National Oilwell Varco
Speaker(s) Matt Richardson, Packers Plus; Sudhendu Kashikar, Reveal Energy; Anton Ivanov, National Oilwell Varco

Refracturing technologies continue to evolve over time as more wells are restimulated and operators observe results. This session will focus on new technologies pushing the envelope in well restimulation. Furthermore, it will focus on new refracturing treatment methodologies being trialed based upon gaps in current refracturing processes. Lastly, this session will look at various diagnostics being applied to capture more information before, during, and after refracturing treatments in order to push the industry further up the learning curve.  

14:30 - 15:00
15:00 - 16:30
Session 8: Wrap-up
Session Chairpersons Sam French, BP; Dave Allison, Anadarko; Ross Rucker, PropTester

In this closing session, summaries of the major points of the workshop will be presented and discussed.