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US 2021/0122971 A1Published application
Novel synthetic caustic composition
AssigneeFluid Energy Group Ltd.
InventorsClay PURDY, Markus WEISSENBERGER
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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 using a crosslinked polymer gel, said method comprising the steps of:
- providing a hydrocarbon-bearing formation;
- providing a polymer;
- providing a cross-linking activator and adding such to the polymer;
- 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 resulting polymer mixture;
- and
- injecting said resulting polymer-proppant composition into the 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 buffered caustic composition;
- glycine present in a concentration of between 2 wt % and 25 wt % of the buffered 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 buffered caustic composition is minimally damaging to human skin upon contact therewith for a period of up to 30 minutes;
- adding the buffered 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 buffered caustic composition comprising:
- a caustic component present in a concentration of up to 40 wt % of the buffered caustic composition;
- glycine present in a concentration of between 2 wt % and 25 wt % of the buffered 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 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 buffered caustic composition for a period of time sufficient to affect the treatment intended.
4 more elements
Dependencies are inferred from the claim text.