Case Studies
BioSqueeze® Enables Permanent Abandonment with a Surface Squeeze
BSI eliminated gas flow on a well plugged to surface in Ohio using an inobtrusive surface squeeze.
Tags: P&A
View StudyEliminate Annular Leaks in Carbon Sequestration Wells
Carbon capture, utilization and sequestration (CCUS) is becoming an important solution for reducing the impact of the oil and gas industry on the planet. BioSqueeze® can make Class VI injection wells more efficient at storing carbon dioxide by eliminating sustained casing pressure and sealing leakage pathways at their source. 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® uses its Bottom Annular Gas Squeeze to seal leaks in carbon sequestration wells, 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® Seals Leaking Annulus with a Squeeze at Surface
BSI eliminated gas on a storage well being abandoned in Virginia using direct injection down the backside at surface.
Tags: P&A
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Case Studies
BioSqueeze® Surface Injection Seals Leaking Annulus
BSI re-entered a plugged well in Ohio to eliminate gas on the intermediate casing, which continued to leak after multiple attempts with alternative sealing technologies.
Tags: P&A
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Case Studies
BioSqueeze® Eliminates Gas Flow Using Surface Injection
BSI was contracted to assist with gas migration on a re-entry in Wyoming. Existing cement plugs prevented access for a perf and squeeze without drillout, prompting the operator to explore alternative remediation techniques. BSI utilized surface injection to push fluids directly into leakage pathways in the annulus.
Tags: P&A
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Case Studies
BioSqueeze® Seals Leaking Annuli Allowing P&A to Proceed
BSI eliminated gas flow on the production and intermediate annuli with the help of acoustic diagnostics.
Tags: P&A
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