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US 10,648,306 B2Granted
Interval delivery of liquid carbon dioxide
AssigneeArizona Co2 Solutions LLC
InventorsMatthew Wallace, John T. Wilson
Life of this patent
Estimating the term…
Abstract
The system delivers liquid CO2 125 into the casing screened interval of an eductor pipe 110 within a water well. The eductor pipe 110 assembly extends from the top of the well (or land surface) to the top of a disk interval isolation assembly 123. The disk assembly isolates a predetermined length of screened interval, so liquid CO2 125 can be injected and contained within the interval and immediately outside the casing.
Claims19
An interval isolation assembly comprising:
- an eductor pipe configured for introducing liquid CO2 within a water well having a well wall;
- an upper disk configured for forming an upper boundary for a perforated section of the eductor pipe and the liquid CO2 between the eductor pipe and the well wall;
- and
- a lower disk configured for forming a lower boundary for the perforated section of the eductor pipe and the liquid CO2 between the eductor pipe and the well wall,
- wherein the upper disk and the lower disk both include a releasable disk between two metal plates that provides a seal during injection of the liquid CO2,
- wherein the upper disk and the lower disk are configured for isolating liquid CO2 between the upper boundary and the lower boundary;
- and
- wherein at least a portion of each of the releasable disks is configured to relieve pressure between the upper boundary and the lower boundary, in response to increased pressure between the upper boundary and the lower boundary.
5 more elements
A method comprising:
- injecting liquid CO2 into a perforated portion of an eductor pipe between an upper disk and a lower disk within a first section of a well during a first time period, wherein the upper disk forms an upper boundary for the perforated portion of the eductor pipe and the liquid CO2 between the eductor pipe and the well wall in the first section of the well, wherein the lower disk forms a lower boundary for the perforated portion of the eductor pipe and the liquid CO2 between the eductor pipe and the well wall in the first section of the well, and wherein the upper disk and the lower disk both include a releasable disk between two metal plates that provides a seal during the injection of the liquid CO2;
- relieving pressure between the upper boundary and the lower boundary by releasing at least a portion of at least one of the releasable disks, in response to increased pressure between the upper boundary and the lower boundary;
- and
- injecting liquid CO2 into the perforated portion of the eductor pipe between the upper disk and the lower disk within a second section of the well during a second time period, wherein the upper disk forms the upper boundary for the perforated portion of the eductor pipe and the liquid CO2 between the eductor pipe and the well wall in the second section of the well, and wherein the lower disk forms the lower boundary for the perforated portion of the eductor pipe and the liquid CO2 between the eductor pipe and the well wall in the second section of the well.
1 more element
Dependencies are inferred from the claim text.