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Module 6 - The Basics of Refracturing Options and Techniques
Introduction to Refrac
Intro and Considerations for Refrac (2:14)
Reasons for Production Decline
Proppant Crushing (0:45)
Proppant Embedment (0:32)
Proppant Rearrangement (0:29)
Poor Choke Strategy - Loss of Near-Wellbore Proppant (1:27)
Improper Breakdown of Gels (0:22)
Scaling (0:16)
Selecting Refrac Candidates
Uncertainty and Using Production Matching (1:05)
Refrac Selection - Changes with Wellbore Completion Design (0:59)
Refrac Selection - Changes with Fracturing Design (1:37)
Refracturing Options
Diverters (2:00)
Straddle Isolation - Isolation Cups (1:32)
Straddle Isolation - Resettable Packers (0:52)
Additional Resources for Straddle Isolation - Resettable Packers
Expandable Liners (1:13)
Additional Tubing String with Packer Isolation (1:32)
Additional Resources for Additional Tubing String with Packer Isolation
Additional Tubing String with Cement Isolation (0:48)
Additional Tubing String with Gel Isolation (1:23)
Reclosable Ball-Activated Sleeves (0:42)
Reclosable Ball-Activated Sleeves with Plug-and-Perf Refrac (0:43)
Reclosable Ball-Activated Sleeves Refrac Reusing the Ballseats (0:59)
Reclosable Coiled-Tubing-Activated Sleeves (0:45)
Reclosable Sleeve Caveat (0:46)
Refrac Considerations for Original Completion Using Openhole Isolation (1:27)
Using an Additional Tubing String with Cement Isolation with an Openhole Original Completion (0:39)
Frac Hits and Protection Fracs
Intro and What is a Frac Hit (1:43)
Frac Hits in New Wells (0:22)
Infill Drilling, Parent Wells, and Child Wells (1:16)
Frac Hits Due to Depleted Pressure in the Parent Well (1:00)
Protection Fracs (0:57)
Refracturing as a Protection Frac (0:54)
Frac Hits Due to Depleted Pressure in the Parent Well
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