Case Studies
Downhole BioSqueeze® - Utica Shale
BioSqueeze Inc. was contracted by an operator in the Utica Shale of Ohio to remediate sustained casing pressure in two annuli on a well in the process of being plugged.
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View StudyEliminate Sustained Casing Pressure in DUC Wells
Oil and gas wells that have been drilled but have not yet undergone various completion activities are often compromised by annular leaks. Pressure from these leaks continues to build over time, with the risk of a blowout unless vented or flared. BioSqueeze® can help operators avoid band-aid solutions, eliminating sustained casing pressure in very few attempts, foregoing the need for maintenance down the road. Since BioSqueeze® seals leakage pathways themselves and leaves nothing in the wellbore, no-drill out is needed after the job is done, saving operators time and money.
BioSqueeze® can eliminate sustained casing pressure in DUC wells using a Bottom Annular Gas Squeeze, shown below.
Downhole BioSqueeze®
Operator Preparation
Step 1:
Identify problem annulus through bond logging.
Step 2:
Place bridge plug and perforate or notch casing to target leakage pathways.
Step 3:
Set packer and run tubing to bottom perf/notch to squeeze into the annulus.
BioSqueeze® Execution
Step 4:
The first day, connect equipment and pump low-viscosity, environmentally friendly biomineralization solution in position downhole using tubing.
Step 5:
Pump fluids into problem annuli for about 6 hours, applying pressure to squeeze fluids deep into leakage pathways. Monitor injection rate and pressure until gas migration is eliminated.
Step 6:
Seal the well in overnight at pressure to continue to form the barrier.
Step 7:
The following day, return to continue pumping fluids, ensuring that all problem annuli are fully sealed.
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Case Studies
BioSqueeze Inc. Seals Casing Leak
BioSqueeze Inc. was contracted to restore mechanical integrity on a Marcellus Shale well undergoing post frac drillout to bring the asset online.
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Case Studies
BioSqueeze Inc. Seals First Orphan Well
A Deep Penetrating Annular Surface (DPAS™) BioSqueeze® was used to eliminate annular gas leaking from a plugged orphan well in Cleveland, OH as part of the ODNR's orphan well plugging program.
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Case Studies
DPAS BioSqueeze® Seals 2 Leaking Annuli on Well being P&A’d in WY
DPAS was used to eliminate annular pressure on the 16” x 20 (155 psi) and 20” x 30” (150 psi) annuli on an injection well being abandoned in Wyoming.
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