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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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.
LEARN HOW BIOSQUEEZE®
CAN HELP YOU
Case Studies
Permanent Abandonment enabled by DPAS BioSqueeze®
BSI eliminated gas flow on a well plugged to surface in Ohio using an inobtrusive Deep Penetrating Annular Surface (DPAS) BioSqueeze®.
Tags: P&A
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Case Studies
Leaking Annulus Sealed via Deep Penetrating Annular Surface (DPAS) BioSqueeze®
BSI eliminated gas on a storage well being abandoned in Virginia by performing a Deep Penetrating Annular Surface (DPAS) BioSqueeze®
Tags: P&A
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Case Studies
Deep Penetrating Annular Surface (DPAS) BioSqueeze® 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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