Wrinkled capsules for treatment of subterranean formations
AssigneesHalliburton Energy Services, Inc., The University of North Carolina at Chapel Hill
InventorsLee J. Hall, Jay Paul Deville, Maria Ina, Sergey Sheyko, Michael Rubinstein
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Abstract
Various embodiments disclosed relate to wrinkled capsules for treatment of subterranean formations. In various embodiments, the present invention provides a method of treating a subterranean formation. The method includes placing in the subterranean formation a composition comprising at least one wrinkled capsule. The wrinkled capsule includes a hydrophobic core and a wrinkled shell.
Claims19
A method of treating a subterranean formation, the method comprising:
- placing in the subterranean formation a composition comprising at least one wrinkled capsule, the wrinkled capsule comprising:
- a hydrophobic core, wherein the hydrophobic core is about 40 wt % to about 90 wt % of the wrinkled capsule, wherein the hydrophobic core comprises a hydrophobic medium, wherein the hydrophobic medium comprises an oil, an organic solvent, or a combination thereof, wherein the hydrophobic core medium is about 10 wt % to about 90 wt % of the core;
- and
- a wrinkled shell, wherein the wrinkled shell encapsulates the hydrophobic core.
A system comprising:
- a tubular disposed in a subterranean formation;
- and
- a pump configured to pump a composition comprising at least one wrinkled capsule in the subterranean formation through the tubular, wherein the wrinkled capsule comprises:
- a hydrophobic core, wherein the hydrophobic core is about 40 wt % to about 90 wt % of the wrinkled capsule, wherein the hydrophobic core comprises a hydrophobic medium, wherein the hydrophobic medium comprises an oil, an organic solvent, or a combination thereof, wherein the hydrophobic core medium is about 10 wt % to about 90 wt % of the core;
- and
- a wrinkled shell wherein the wrinkled shell encapsulates the hydrophobic core.
A method of preparing a composition for treatment of a subterranean formation, the method comprising:
- forming a composition comprising at least one wrinkled capsule, the wrinkled capsule comprising:
- a hydrophobic core, wherein the hydrophobic core is about 40 wt % to about 90 wt % of the wrinkled capsule, wherein the hydrophobic core comprises a hydrophobic medium, wherein the hydrophobic medium comprises an oil, an organic solvent, or a combination thereof, wherein the hydrophobic core medium is about 10 wt % to about 90 wt % of the core;
- and
- a wrinkled shell, wherein the wrinkled shell encapsulates the hydrophobic core.
A method of preparing a composition for treatment of a subterranean formation, the method comprising:
- forming a composition comprising at least one wrinkled capsule, the wrinkled capsule comprising:
- a hydrophobic core;
- and
- a wrinkled shell, wherein the forming of the composition comprises:
- forming droplets of a hydrophobic medium in water, wherein the droplets include shell monomers;
- and
- polymerizing the monomers, to form a shell around each droplet, to form the wrinkled capsule.
Dependencies are inferred from the claim text.