Treat the perforations
A 1.67-gallon staged treatment reduced injection approximately 96%.
Case study 051 · Marcellus Shale
BioSqueeze seals
a casing leak.
Two leaking zones were sealed and mechanical integrity restored after a casing patch and resin squeeze did not stop pressure loss during completion operations.
ChallengeCasing leak during completion
TargetsTwo leaking zones
Final test10 hours static
OutcomeWell placed on production
The challenge
Integrity loss late in the completion program.
During post-fracture drillout on stage 56 of 57, well pressure rapidly decreased. Camera diagnostics identified a compromised casing patch.
The patch was removed and resin was squeezed into the perforations, but the well continued to leak. BioSqueeze was mobilized to treat both the leaking perforations and the casing breach.
The treatment
Two targets. Two controlled injection responses.
Verify closure
The final perforation injection rate reached 0.001 gpm at 1,608 psi.
Treat the casing breach
A 46-gallon treatment reduced injection approximately 90%.
Pressure test
The well held static for 10 hours without further pressure loss.
The result
Mechanical integrity restored.
The well was completed and placed on production.
96%approximate injection reduction at the perforations
90%approximate injection reduction at the casing breach
2separate leaking zones sealed
10 hrstatic hold with no further loss
The case shows how small-volume, defect-scale treatment can restore integrity without sacrificing the well after conventional repair attempts fall short.
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