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US 10,294,402 B2Granted
Biodegradable, food grade shale stabilizer for use in oil and gas wells
AssigneeHalliburton Energy Services, Inc.
InventorsGarima Misra, Anita Gantepla
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Abstract
A method of using an aqueous-based drilling fluid comprises: introducing the drilling fluid into a wellbore, wherein the wellbore penetrates a subterranean formation, wherein the drilling fluid comprises: (A) a base fluid, wherein the base fluid comprises water; and (B) a shale stabilizer additive, wherein the shale stabilizer additive: (i) is made from a protein; (ii) is food grade; and (iii) provides a shale retention of at least 85% for the subterranean formation.
Claims21
A method of using an aqueous-based drilling fluid comprising:
- introducing the drilling fluid into a wellbore, wherein the wellbore penetrates a subterranean formation, wherein the drilling fluid comprises:
- (A) a base fluid, wherein the base fluid comprises water;
- and
- (B) a shale stabilizer additive, wherein the shale stabilizer additive:
- (i) is made from a protein selected from the group consisting of legumes;
- casein;
- nuts;
- whey protein;
- gelatins;
- quinoa;
- teff;
- egg whites;
- baker's yeast;
- spirulina algae;
- hemp seeds;
- and combinations thereof;
- (ii) is food grade per the United States Food and Drug Admiration regulations as of Jan. 9, 2014;
- and
- (iii) provides a shale retention of at least 85% for the subterranean formation.
16 more elements
Dependencies are inferred from the claim text.