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US 11,884,851 B2Granted
Silicate shale inhibitor additives
AssigneeHalliburton Energy Services, Inc.
InventorPreston May
Life of this patent
Estimating the term…
Abstract
Methods and compositions including silicate shale inhibitor additives. In some embodiments, the methods include introducing a shale inhibitor additive comprising a silicate anion and a quaternary ammonium cation into a treatment fluid; introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation that comprises shale; and allowing the shale inhibitor additive to interact with the shale in the subterranean formation to at least partially inhibit the shale.
Claims20
A method comprising:
- providing a treatment fluid comprising a shale inhibitor additive comprising a silicate anion and a quaternary ammonium cation;
- and
- introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation that comprises shale,
- wherein the quaternary ammonium cation is choline, and
- wherein the silicate anion is selected from the group consisting of:
- an orthosilicate, a pyrosilicate, a cyclic-silicate, a single chain silicate, a double chain silicate, a sheet silicate, a colloidal silicate, and any combination thereof.
3 more elements
A method comprising:
- drilling at least a portion of a wellbore to penetrate at least a portion of a subterranean formation that comprises shale;
- and
- circulating a drilling fluid in at least the portion of the wellbore while drilling at least the portion of the wellbore, the drilling fluid comprising an additive comprising
- a base fluid,
- a silicate anion, and
- a quaternary ammonium cation,
- wherein the quaternary ammonium cation is choline, and
- wherein the silicate anion is selected from the group consisting of:
- an orthosilicate, a pyrosilicate, a cyclic-silicate, a single chain silicate, a double chain silicate, a sheet silicate, a colloidal silicate, and any combination thereof.
6 more elements
A method comprising:
- preparing, at a wellsite, a treatment fluid comprising a shale inhibitor additive comprising a silicate anion and a quaternary ammonium cation;
- and
- introducing the treatment fluid into a wellbore penetrating at least a portion of a subterranean formation that comprises shale,
- wherein the quaternary ammonium cation is choline, and
- wherein the silicate anion is selected from the group consisting of:
- an orthosilicate, a pyrosilicate, a cyclic-silicate, a single chain silicate, a double chain silicate, a sheet silicate, a colloidal silicate, and any combination thereof.
3 more elements
Dependencies are inferred from the claim text.