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US 11,919,782 B2Granted
Method for manganese oxides dissolution
AssigneeBaker Hughes Oilfield Operations LLC
InventorsDaniel P. Vollmer, Dorianne A. Castillo
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Abstract
A method of increasing a solubility of a manganese oxide includes contacting the manganese oxide with an acid component in the presence of a dissolution accelerator that includes at least one of hydrazine, a hydrazine derivative, or a hydrazide. Also disclosed is a drilling fluid containing a carrier; MnO2; and at least one of a viscosifier, a rheology modifier, a dispersant, a weighting agent, a defoamer, a fluid loss agent, bentonite, or a lubricant.
Claims22
A method comprising:
- contacting a manganese oxide with an acid component in the presence of a dissolution accelerator, the dissolution accelerator comprising at least one of hydrazine, a hydrazine derivative, or a hydrazide, forming a treatment fluid comprising a product obtained by contacting the manganese oxide with the acid component in the presence of the dissolution accelerator;
- and introducing the treatment fluid into a wellbore.
A method of increasing a solubility of a manganese oxide, the method comprising:
- contacting the manganese oxide with an acid component in the presence of a dissolution accelerator, the dissolution accelerator comprising at least one of hydrazine, a hydrazine derivative, or a hydrazide, wherein the manganese oxide is contacted with the acid component in the presence of the dissolution accelerator during a drilling, stimulation, completion, production, or remediation operation.
Dependencies are inferred from the claim text.