IP Library › Granted Patent US 9,458,023
Granted Patent B2
US 9,458,023 · App. 14/021,503 · Granted Oct 4, 2016

Use of aqueous alkali aluminosilicate for profile modification, water control and stabilization

Inventors: Michael J. McDonald (Toronto, CA); Neil Miller (King of Prussia, PA); Janice Hamilton (Oakville, CA)
Assignee: PQ CORPORATION
C01B33/26
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Quick Facts
Patent No.
US 9,458,023
App. No.
14/021,503
Granted
Oct 4, 2016
Kind
B2
Abstract

Embodiments of the invention relate to methods for making and compositions including aqueous alkali aluminosilicates used for conformance. The aqueous alkali aluminosilicates provide similar reaction characteristics of alkali silicates, and in addition provide enhanced conformance properties due to their ability to crystallize.

Claims (11)

1. A method for providing conformance in subterranean environments comprising the steps of:

(a) introducing an aqueous alkali aluminosilicate solution into a downhole which is connected to said subterranean environment, said aqueous alkali aluminosilicate solution comprising a soluble alkali aluminosilicate dissolved in said aqueous alkali aluminosilicate solution; and

(b) setting said aqueous alkali aluminosilicate solution while in said downhole.

2. The method of claim 1 wherein said subterranean environment is one of an oil field, a mine, and soil stabilization in construction.

3. The method of claim 1 wherein said aqueous alkali aluminosilicate solution is crystallized by diluting it with water.

4. The method of claim 1 wherein said aqueous alkali aluminosilicate solution is crystallized by heat present in downhole conditions.

5. The method of claim 1 wherein said aqueous alkali aluminosilicate solution is crystallized by increasing the pressure in said downhole.

6. The method of claim 1 wherein said aqueous alkali aluminosilicate solution is crystallized by agitating said alkali aluminosilicate in said downhole.

7. The method of claim 1 wherein said aqueous alkali aluminosilicate solution is crystallized by introducing seed crystals into said downhole.

8. The method of claim 1 wherein said aqueous alkali aluminosilicate is selected from the group consisting of sodium aluminosilicate, potassium aluminosilicate, lithium aluminosilicate, and quaternary ammonium aluminosilicate.

9. The method of claim 1 wherein said soluble alkali aluminosilicate has a silicon to aluminum molar ratio of greater than 5.

Assignments (13)
CHANGE OF NAME Recorded Dec 2, 2021
From: PQ CORPORATION
To: PQ LLC
Reel/Frame 058295/0836 →
CORRECTIVE ASSIGNMENT TO CORRECT THE CONVEYING PARTY NAME PREVIOUSLY RECORDED AT REEL: 057089 FRAME: 0345. ASSIGNOR(S) HEREBY CONFIRMS THE RELEASE OF SECURITY INTEREST. Recorded Aug 6, 2021
From: CITIBANK, N.A., AS COLLATERAL AGENT
To: PQ CORPORATION
Reel/Frame 057109/0688 →
PARTIAL RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT R/F 056539/0903 Recorded Aug 5, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
To: PQ CORPORATION
Reel/Frame 057089/0255 →
PARTIAL RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT R/F 038861/0071 Recorded Aug 5, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
To: PQ CORPORATION
Reel/Frame 057089/0345 →
RELEASE OF SECURITY INTEREST IN PATENTS RECORDED AT R/F 038860/0900 Recorded Aug 5, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS ADMINISTRATIVE AGENT
To: PQ CORPORATION
Reel/Frame 057089/0382 →
RELEASE OF SECURITY INTEREST IN PATENTS AT R/F 053281/0474 Recorded Jun 10, 2021
From: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
To: PQ CORPORATION
Reel/Frame 056539/0782 →
TERM LOAN PATENT SECURITY AGREEMENT Recorded Jun 10, 2021
From: PQ CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS AGENT
Reel/Frame 056539/0903 →
SECURITY INTEREST Recorded Jul 22, 2020
From: PQ CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 053281/0474 →
RELEASE OF SECURITY INTEREST AT R/F 38860/0012 Recorded Jul 22, 2020
From: WELLS FARGO BANK, N.A., AS COLLATERAL AGENT
To: PQ CORPORATION
Reel/Frame 053281/0616 →
PATENT SECURITY AGREEMENT (NOTES) Recorded Jun 1, 2016
From: PQ CORPORATION
To: WELLS FARGO BANK, NATIONAL ASSOCIATION, AS COLLATERAL AGENT
Reel/Frame 038860/0012 →
PATENT SECURITY AGREEMENT (TERM) Recorded Jun 1, 2016
From: PQ CORPORATION
To: CREDIT SUISSE AG, CAYMAN ISLANDS BRANCH, AS COLLATERAL AGENT
Reel/Frame 038860/0900 →
PATENT SECURITY AGREEMENT (ABL) Recorded Jun 1, 2016
From: PQ CORPORATION
To: CITIBANK, N.A., AS COLLATERAL AGENT
Reel/Frame 038861/0071 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 24, 2013
From: MCDONALD, MICHAEL J.; MILLER, NEIL; HAMILTON, JANICE
To: PQ COROPRATION
Reel/Frame 031269/0872 →
Continuity (2)
Provisional Application 61703467 · Sep 20, 2012
Related Publication 20140076568A1 · Mar 20, 2014