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US 9,790,416 B2Granted
Drilling fluid compositions and methods for use thereof in subterranean formations
AssigneeHalliburton Energy Services, Inc.
InventorsLaura P. Kuri, Charles Landis, Ryan Collins, David M. Donald
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Abstract
A method comprising drilling a wellbore into a subterranean formation; providing a drilling fluid comprising an aqueous base fluid and a property control package, the property control package comprising: a stabilizing agent; a filtration control agent; and a suspension enhancer; introducing the drilling fluid into the wellbore in the subterranean formation; and continuously circulating the drilling fluid during the drilling of the wellbore.
Claims4
A method comprising:
- drilling a wellbore into a subterranean formation;
- providing a drilling fluid comprising an aqueous base fluid;
- providing a property control package in a dry state, the property control package comprising:
- a finely ground clay derivative present in an amount in a range from about 70% to about 95% by dry weight of the property control package, wherein the finely ground clay derivative comprises a montmorillonite clay and comprises less than 10% impurities by dry weight of the clay derivative;
- a stabilizing agent, wherein the stabilizing agent is present in an amount in a range of from about 0.01% to 2% by dry weight of the property control package and the stabilizing agent comprises a partially hydrolyzed polyacrylamide;
- a filtration control agent, wherein the filtration control agent comprises a cellulose derivative;
- and
- a suspension enhancer, wherein the suspension enhancer does not interact with the finely ground clay derivative to hinder swelling of the finely ground clay derivative;
- introducing the property control package into the drilling fluid;
- introducing the drilling fluid comprising the property control package into the wellbore in the subterranean formation;
- and
- continuously circulating the drilling fluid during the drilling of the wellbore.
9 more elements
A method comprising:
- drilling a wellbore into a subterranean formation;
- providing a drilling fluid comprising an aqueous base fluid;
- providing a property control package in a dry state, the property control package consisting essentially of:
- a finely ground clay derivative present in the range from about 70% to about 95% by dry weight of the property control package, wherein the finely ground clay derivative is a montmorillonite clay;
- wherein the finely ground clay derivative comprises less than about 5% impurities by dry weight of the clay derivative;
- a stabilizing agent, wherein the stabilizing agent includes a partially hydrolyzed polyacrylamide;
- a filtration control agent, wherein the filtration control agent includes a cellulose derivative;
- and
- a suspension enhancer, wherein the suspension enhancer does not interact with the finely ground clay derivative to hinder swelling of the finely ground clay derivative;
- introducing the property control package into the drilling fluid;
- introducing the drilling fluid comprising the property control package into the wellbore in the subterranean formation;
- and
- continuously circulating the drilling fluid during the drilling of the wellbore.
10 more elements
Dependencies are inferred from the claim text.