IP Library Granted Patent US 9,022,688
Granted Patent B2
US 9,022,688 · App. 13/129,531 · Granted May 5, 2015

Subsurface induced pore clogging to prevent spill flow

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Quick Facts
Patent No.
US 9,022,688
App. No.
13/129,531
Granted
May 5, 2015
Kind
B2
Abstract

Implementations and techniques for providing subsurface permeation barriers are generally disclosed.

Claims (22)

1. A method to form a subsurface permeation barrier, the method comprising:

initially providing a surfactant material including at least one of a high pH surfactant solution and a buffered surfactant solution to a subsurface soil volume;

providing at least one of a cathode electrode or an anode electrode adjacent to the surfactant material;

placing the at least one of the cathode electrode or the anode electrode at a particular distance away from another cathode electrode or another anode electrode adjacent to the at least one of the cathode electrode or the anode electrode, wherein the particular distance is determined based on a permeation rate corresponding to at least one from a set of: a soil type, a soil density, and a pore size associated with the subsurface soil volume;

permeating one or more portions of the subsurface soil volume with the surfactant material;

providing an acidifying material including at least one of a low pH solution and an unbuffered solution adjacent to the at least one of the cathode electrode or the anode electrode; and

permeating the one or more portions of the subsurface soil volume permeated by the surfactant material with the acidifying material such that the surfactant material adheres to soil particles in the subsurface soil volume in order to form the subsurface permeation barrier.

2. The method of claim 1 , wherein the subsurface permeation barrier is configured to inhibit permeation of another material through the subsurface soil volume.

3. The method of claim 1 , wherein providing surfactant material to the subsurface soil volume comprises:

configuring the at least one of the cathode electrode and the anode electrode to facilitate permeation of the surfactant material within the subsurface soil volume; and

casing the surfactant material to permeate at least a portion of the subsurface soil volume.

4. The method of claim 1 , wherein the surfactant material comprises at least one of: polysiloxane, hydroxypropyl beta cyclodextrin, polysorbate 80, trimethylammonium bromide, cetyltrimethylammonium bromide, tetradecyltrimethylammonium bromide, octadecyltrimethylammonium bromide, polyacrylamide, methyl cellulose, dioctyl sulfonate, diphenyl oxide disulfonate, polyoxyalkylated fatty acid ester, sodium dodecyl sulfate, trehalolipids, rhamnolipids, sophorolipids, glycolipids, diglycosyl diglycerides, surfactin, liposan, or emulsan.

5. The method of claim 1 , further comprising selecting the surfactant material to at least partially block soil pores in the subsurface permeation barrier.

6. A method to form a subsurface permeation barrier, the method comprising:

initially providing a surfactant material including at least one of a high pH surfactant solution and a buffered surfactant solution adjacent to at least one of a cathode electrode or an anode electrode, wherein the at least one of the cathode electrode or the anode electrode are configured to facilitate permeation of a surfactant material within a subsurface soil volume;

placing the at least one of the cathode electrode or the anode electrode at a particular distance away from another cathode electrode or another anode electrode adjacent to the at least one of the cathode electrode or the anode electrode, wherein the particular distance is determined based on a permeation rate corresponding to at least one from a set of: a soil type, a soil density, and a pore size associated with the subsurface soil volume;

permeating one or more portions of the subsurface soil volume with the surfactant material by applying direct current (DC) voltage pulses over the at least one of the cathode electrode or the anode electrode

providing at least one of a low pH acidifying material and an unbuffered acidifying material adjacent to the at least one of the cathode electrode or the anode electrode; and

permeating the one or portions of the subsurface soil volume permeated by the surfactant material with the at least one of the low pH acidifying material and the unbuffered acidifying material such that the surfactant material adheres to soil particles within the subsurface soil volume to form the subsurface permeation barrier.

7. The method of claim 6 , wherein the surfactant material comprises at least one of polysiloxane, hydroxypropyl beta cyclodextrin, polysorbate 80, trimethylammonium bromide, cetyltrimethylammonium bromide, tetradecyltrimethylammonium bromide, octadecyltrimethylammonium bromide, polyacrylamide, methyl cellulose, dioctyl sulfonate, diphenyl oxide disulfonate, polyoxyalkaylated fatty acid ester, sodium dodecyl sulfate, trehalolipids, rhamnolipids, sophorolipids, glycolipids, diglycosyl diglycerides, surfactin, liposan, or emulsan.

8. The method of claim 6 , further comprising selecting the surfactant material to at least partially block soil pores within the soil volume to prevent permeation of another material through the subsurface soil volume.

9. The method of claim 6 , wherein the acidifying material comprises at least one of an un-buffered surfactant solution, an acidic surfactant solution, and acidified water solution, or water.

Assignments (2)
RELEASE OF SECURITY INTEREST IN PATENTS, RECORDED ON JANUARY 29, 2019 AT REEL 048373 FRAME 0217 Recorded Sep 22, 2025
From: CRESTLINE DIRECT FINANCE, L.P., AS COLLATERAL AGENT
To: EMPIRE TECHNOLOGY DEVELOPMENT LLC
Reel/Frame 072936/0464 →
SECURITY INTEREST Recorded Jan 29, 2019
From: EMPIRE TECHNOLOGY DEVELOPMENT LLC
To: CRESTLINE DIRECT FINANCE, L.P.
Reel/Frame 048373/0217 →