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 Bradenhead Pressure in Producing Wells
Wells that currently produce oil and gas can create unwanted bradenhead pressure (sustained casing pressure), resulting in methane emissions. BioSqueeze® can seal leakage pathways so that the well can keep producing at a high rate, without unnecessary emissions escaping in the process. 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 bradenhead pressure in producing 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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