Composition for treatment of a drilling fluid and associated methods
A composition is provided for lowering a pH of a drilling fluid. The composition includes HCl, urea, complex substituted keto-amine-hydrochloride, an alcohol, an ethoxylate, and a ketone. A method of using the composition includes adding the composition to a drilling fluid for a well to assist in lowering a pH thereof. Methods are also provided for performing hydraulic fracturing of an oil or a gas well, for adjusting a pH of a drilling fluid, for adjusting and maintaining a pH of a process fluid, for solubilizing calcium carbonate in an aqueous suspension or dispersion of calcium carbonate, for removing a foulant in a fluid-handling element, and for adjusting a pH and lowering a salt level of turf.
1. A method for lowering a pH of a drilling fluid, the method comprising:
providing a composition comprising HCl, urea, complex substituted keto-amine-hydrochloride, an alcohol, an ethoxylate, and a ketone; and
adding the composition to a drilling fluid for a well to assist in lowering a pH thereof.
2. The method recited in claim 1 , wherein the alcohol comprises at least one of isopropyl alcohol and propargyl alcohol.
3. The method recited in claim 1 , wherein the ethoxylate comprises ethoxylated nonylphenol.
4. The method recited in claim 1 , wherein the ketone comprises methyl vinyl ketone.
5. The method recited in claim 1 , wherein the composition comprises:
HCl, 55 wt %;
urea, 42 wt %;
complex substituted keto-amine-hydrochloride, 0.067 wt %;
isopropyl alcohol, 0.067 wt %;
ethoxylated nonylphenol, 0.022 wt %;
propargyl alcohol, 0.022 wt %; methyl vinyl ketone, 0.022 wt %;
acetone, 0.022 wt %; and
acetophenone, 0.0022 wt %.
6. The method recited in claim 1 , wherein the composition providing step comprises providing the composition during hydraulics fracturing of at least one of an oil well and a gas well.
7. The method recited in claim 5 , further comprising diluting the composition to 20-90% by volume composition in water.
8. A method for adjusting and maintaining a pH of a process fluid, the method comprising:
providing a composition comprising HCl, urea, complex substituted keto-amine-hydrochloride, an alcohol, an ethoxylate, and a ketone; and
adding the composition to a process fluid to adjust and maintain a pH thereof.
9. The method recited in claim 8 , wherein the alcohol comprises at least one of isopropyl alcohol and propargyl alcohol.
10. The method recited in claim 8 , wherein the ethoxylate comprises ethoxylated nonylphenol.
11. The method recited in claim 8 , wherein the ketone comprises methyl vinyl ketone.
12. The method recited in claim 8 , wherein the composition comprises:
HCl, 55 wt %;
urea, 42 wt %;
complex substituted keto-amine-hydrochloride, 0.067 wt %;
isopropyl alcohol, 0.067 wt %;
ethoxylated nonylphenol, 0.022 wt %;
propargyl alcohol, 0.022 wt %; methyl vinyl ketone, 0.022 wt %;
acetone, 0.022 wt %; and
acetophenone, 0.0022 wt %.
13. The method recited in claim 8 , wherein the process fluid comprises at least one of a processing fluid for textiles, a processing fluid for paper manufacturing, industrial process water, waste water, industrial discharge water, and industrial recycling water, and further comprising diluting the composition prior to the adding step by 10-85% composition in water.
14. The method recited in claim 8 , wherein the composition providing step comprises providing the composition during a hydraulics fracturing of at least one of an oil well and a gas well.