Re-Frac Perforation Plugging Technology
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SwellFrac Details
Efficient, economical and optimized solution for re-fracturing well prep
Operators are left with few choices when it comes to prepping their well inventory for re-fracturing. This typically involves running a liner or long string to surface. The time to prepare these wells and associated costs can be prohibitive, as well as the current supply chain issues and rising costs of casing. Once these wells have been prepped with a new liner or long string, the frac rates are greatly diminished due to the reduced casing size. This problem is further compounded as operators are then forced to use smaller frac plugs and perforating guns.
Project Description
SwellFrac offers a solution to prep these wells via a surface pumping application to seal off all existing and open perforation tunnels. The patented process involves pumping an aqueous slurry from surface,screening out inside the perforation tunnels. Once done, over pressure is applied while the SwellFrac material swells out forming plugs inside the perforation tunnels. The swelling times in fresh water and BHT >150F are typically a few hours or less. The residual SwellFrac material left in the well bore is cleaned out. The well is now ready for re-frac ops to begin.
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USA Made
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Fast Turnaround
SwellFrac’s particle distribution size interlocks inside the perforation tunnel forming a solid plug once swollen. Surface testing up to 10,000PSI differential testing shows ZERO leak off. The remaining plugs inside the perforation tunnels are chemical resistant and able to withstand high BHT’s. When the well is flowed back and now producing hydrocarbons the SwellFrac plugs remain swollen due to the proprietary SAP and osmotic polymers even in the presence of ZERO water.
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FEATURES & BENEFITS
- Single-application solution for complete lateral preparation
- Rapid swelling with a pressure-tight seal to prevent frac migration
- Fast turnaround for re-Frac, water shutoff, and P&A
- Compatible with acids and high BHT for diverse well conditions
- Rig-less deployment reduces operational complexity
SPECIFICATIONS
- Expands up to 400% in size
- Proprietary SAP (Super Absorbent Polymer) elastomer
- Withstands high temperatures (BHT up to 525°F)
- Safe for casing, tubulars, and formation – Single sack solution
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