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US 11,319,481 B2Granted
Synthetic caustic composition
AssigneeFluid Energy Group Ltd.
InventorsClay Purdy, Markus Weissenberger
Life of this patent
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Abstract
An aqueous caustic composition comprising: a caustic component; an additive adapted to provide an extended buffering effect to the caustic composition when such is exposed to acid; and water. Methods of using such compositions are also disclosed.
Claims19
A method of fracking a hydrocarbon-bearing formation comprising:
- providing a hydrocarbon-bearing formation;
- providing a polymer;
- providing a cross-linking activator and adding such to the polymer to form a polymer mixture;
- adding to the polymer mixture an aqueous caustic composition comprising:
- a caustic component;
- an additive adapted to provide an extended buffering effect to the aqueous caustic composition when such is exposed to acid;
- and
- water;
- adding a proppant to the polymer-aqueous caustic composition mixture to form a polymer-proppant composition;
- and
- injecting the polymer-proppant composition into the hydrocarbon-bearing formation.
8 more elements
A method of treating an aqueous solution, comprising:
- providing an aqueous caustic composition comprising:
- a caustic component present in a concentration of up to 40 wt% of the aqueous caustic composition;
- glycine present in a concentration of between 2 wt% and 25 wt% of the aqueous caustic composition;
- and
- water,
- where the caustic component and glycine are present in a molar ratio ranging from 15:1 to 5:1 and wherein the aqueous caustic composition is minimally damaging to human skin upon contact therewith for a period of up to 30 minutes;
- adding the aqueous caustic composition to the aqueous solution to increase a pH of the aqueous solution.
4 more elements
A method of using an aqueous caustic composition to treat a water requiring treatment, comprising:
- providing the aqueous caustic composition comprising:
- a caustic component present in a concentration of up to 40 wt% of the aqueous caustic composition;
- glycine present in a concentration of between 2 wt% and 25 wt% of the aqueous caustic composition;
- and
- water,
- wherein the caustic component and glycine are present in a molar ratio ranging from 15:1 to 5:1 and wherein the aqueous caustic composition is minimally damaging to human skin upon contact therewith for a period of up to 30 minutes;
- exposing the water requiring treatment to a pre-determined amount of the aqueous caustic composition for a period of time sufficient to affect the treatment intended.
4 more elements
Dependencies are inferred from the claim text.