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.

Deep Penetrating Annular Surface (DPAS) BioSqueeze®

Operator Preparation

Step 1:
Identify problem annuli and identify top of cement.

BioSqueeze® Execution

Step 2:
The first day, connect equipment and pump low-viscosity, environmentally friendly biomineralization solution into the cement at the top of the problem annulus.

Step 3:
Pump fluids into the annulus for about 6 hours, applying pressure to squeeze fluids deep into leakage pathways. Monitor injection rate and pressure until gas migration is eliminated.

Step 4:
Seal the well in overnight at pressure to continue to form the barrier.

Step 5:
The following day, return to continue pumping fluids, ensuring that micro annuli are fully sealed.

Cement Top BioSqueeze®

Operator Preparation

Step 1:
Set packer and run tubing to just above existing cement plug.

BioSqueeze® Execution

Step 2:
The first day, connect equipment and pump low-viscosity, environmentally friendly biomineralization solution into the leaking cement plug.

Step 3:
Pump fluids into the wellbore for about 6 hours, applying pressure to squeeze fluids deep into leakage pathways. Monitor injection rate and pressure until gas migration is eliminated.

Step 4:
Seal the well in overnight at pressure to continue to form the barrier.

Step 5:
The following day, return to continue pumping fluids, ensuring that all micro annuli are fully sealed.