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US 8,877,689 B2Granted
Compositions and methods for treatment of well bore tar
AssigneeHaliburton Energy Services, Inc.
InventorsPhilip Wayne Livanec, Greg Paul Perez
Life of this patent
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Abstract
Of the many compositions and methods provided herein, one example composition includes a treatment fluid comprising: an aqueous fluid; and a tar stabilizing polymer comprising at least one polymer selected from the group consisting of a styrene polymer, an acrylate polymer, a styrene-acrylate polymer, and any combination thereof.
Claims28
A drilling fluid comprising:
- an aqueous fluid;
- a tar stabilizing polymer in an amount in a range of about 1% to about 10% by volume of the drilling fluid, wherein the tar stabilizing polymer comprises styrene monomers in an amount in the range of about 99% to 100% by weight,
- wherein the tar stabilizing polymer is dispersed in the drilling fluid in a latex emulsion;
- wherein the latex emulsion has a pH in the range of about 2 to about 4;
- and
- a weighting agent.
3 more elements
A drilling fluid comprising:
- an aqueous fluid;
- a tar stabilizing polymer in an amount in a range of about 1% to about 10% by volume of the drilling fluid,
- wherein the tar stabilizing polymer comprises a non-ionic acrylate polymer comprising acrylate monomers in an amount in the range of about 99% to 100% by weight, wherein the tar stabilizing polymer is dispersed in the drilling fluid in a latex emulsion;
- wherein the latex emulsion has a pH in the range of about 2 to about 4;
- and
- a weighting agent.
3 more elements
A drilling fluid comprising:
- an aqueous fluid;
- a tar stabilizing polymer in an amount in a range of about 1% to about 10% by volume of the drilling fluid, wherein the tar stabilizing polymer comprises a non-ionic acrylate copolymer comprising acrylate monomers in an amount in the range of about 99% to less than 100% by weight, wherein the tar stabilizing polymer is dispersed in the drilling fluid in a latex emulsion or a powder;
- wherein the latex emulsion has a pH in the range of about 2 to about 4;
- and
- a weighting agent.
2 more elements
Dependencies are inferred from the claim text.