MAGNETICALLY CONTROLLED DELIVERY OF SUBTERRANEAN FLUID ADDITIVES FOR USE IN SUBTERRANEAN APPLICATIONS

• US 20130150267A1
• Filed: 02/13/2013
• Published: 06/13/2013
• Est. Priority Date: 09/21/2010
• Status: Abandoned Application

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Roddy, Craig W.
• Application Number:
  US13/766,506
• Publication Number:
  US 20130150267A1
• Time in Patent Office: Days
• US Class Current: 507/103
• CPC Class Codes: C04B 40/0641 Mechanical separation of ingredients, e.g. accelerator in breakable microcapsules
• CPC Class Codes: C04B 40/0658 Retarder inhibited mortars activated by the addition of accelerators or retarder-neutralising agents
• CPC Class Codes: C09K 8/42 Compositions for cementing, e.g. for cementing casings into boreholes; Compositions for plugging, e.g. for killing wells compositions for plastering C09K8/50
• CPC Class Codes: C09K 8/467 containing additives for specific purposes

Abstract

Various compositions are provided herein that include a composition that includes a well bore treatment fluid and a magnetically-sensitive component that includes a subterranean fluid additive. In some instances, the magnetically-sensitive component may be a ferrogel. In some instances, the ferrogel may include a polymer matrix and a magnetic species.

Claims

1-32. -32. (canceled)

33. A well bore composition comprising:

a well bore treatment fluid; and

a magnetically-sensitive component that comprises a subterranean fluid additive.

34. The well bore composition of claim 33 wherein the magnetically-sensitive component includes a magnetically activated device.

35. The well bore composition of claim 33 wherein the magnetically-sensitive component is a ferrogel.

36. The well bore composition of claim 35 wherein the ferrogel comprises a polymer matrix and a magnetic species.

37. The well bore composition of claim 33 wherein the subterranean fluid additive comprises an additive selected from the group consisting of a cement activator, a crosslinking agent, and a curing agent.

38. The well bore composition of claim 33 wherein the well bore treatment fluid is a cement composition.

39. The well bore composition of claim 33 wherein the well bore treatment fluid is a pill.

40. The well bore composition of claim 33 wherein the well bore treatment fluid further comprises a consolidating agent.

41. The well bore composition of claim 34 wherein the magnetically activated device includes a remote control signal source capable of generating an electromagnetic control signal.

42. The well bore composition of claim 34 wherein the magnetically activated device is microfabricated.

43. The well bore composition of claim 34 wherein the magnetically activated device is nanofabricated.

44. The well bore composition of claim 34 wherein the magnetically activated device comprises at least one selected from the following:

a polymer, a ceramic, a plastic, a dielectric, metals, and any combination thereof.

45. A well bore composition comprising:

a well bore treatment fluid; and

a ferrogel that comprises a subterranean fluid additive.

46. The well bore composition of claim 45 wherein the ferrogel comprises a polymer selected from the group consisting of:

poly(vinyl alcohol), chitosan, gelatin, dextran, sodium polyacrylate, an acrylate polymer, an acrylate copolymer, and any combination thereof.

47. The well bore composition of claim 45 wherein the ferrogel comprises a magnetic particle selected from the group consisting of:

an iron particle, a nickel particle, a cobalt particle, a ferrous material, magnetite, maghemite, an iron oxide nanoparticle, and any combination thereof.

48. The well bore composition of claim 45 wherein the ferrogel comprises a magnetic particle having a size range of about 1 nm to about 1 μ

m.

49. The well bore composition of claim 45 wherein the well bore treatment fluid is a cement composition.

50. The well bore composition of claim 49 wherein the ferrogel comprises a cement activator selected from the group consisting of:

sodium hydroxide, sodium carbonate, an amine compound, calcium, sodium, magnesium, aluminum, calcium chloride, sodium chloride, sodium aluminate, magnesium chloride, sodium silicate, and any combination thereof.

51. A well bore treatment fluid comprising a ferrogel that comprises a subterranean fluid additive, a polymer matrix, and a magnetic species.