Energized fluids and pressure manipulation for subsurface applications
AssigneeSchlumberger Technology Corporation
InventorIan C. Walton
Life of this patent
Estimating the term…
Abstract
Method and system for use in a subsurface formation traversed by a wellbore. An energized fluid, which when subjected to a low pressure environment liberates or releases gas from solution, is disposed in the formation. Reduced pressure in a region of the wellbore below pressure in the surrounding formation liberates a gas in the energized fluid near a tunnel created in the formation.
Claims25
A method for use in a subsurface formation traversed by a wellbore, comprising:
- disposing an energized fluid in the formation;
- and
- reducing pressure in a region of the wellbore below pressure in the surrounding formation to liberate a gas in the energized fluid near a tunnel created in the formation.
A method for use in a subsurface formation traversed by a wellbore, comprising:
- disposing an energized fluid in the formation;
- creating a tunnel in the formation at a region in the wellbore;
- and
- reducing pressure in the wellbore region to below pressure in the surrounding formation to liberate a gas in the energized fluid near the tunnel.
A method for use in a subsurface formation traversed by a wellbore, comprising:
- creating a tunnel in the formation at a region in the wellbore;
- disposing an energized fluid in the formation near the tunnel;
- reducing pressure in the wellbore region to below pressure in the surrounding formation to liberate a gas in the energized fluid near the tunnel.
A system for use in a subsurface formation traversed by a wellbore, comprising:
- an energized fluid contained for disposal in the formation;
- and
- an apparatus to reduce pressure in a region of the wellbore below pressure in the surrounding formation to liberate a gas in the energized fluid near a tunnel created in the formation.
Dependencies are inferred from the claim text.