Well treatment fluids and methods utilizing nano-particles

• US 9,512,352 B2
• Filed: 12/31/2013
• Issued: 12/06/2016
• Est. Priority Date: 05/10/2007
• Status: Expired due to Fees

• Current Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Original Assignee: Halliburton Energy Services Incorporated (Halliburton Company)
• Inventors: Roddy, Craig Wayne, Chatterji, Jiten, Cromwell, Roger Stanley
• Primary Examiner(s): Figueroa, John J
• Application Number:
  US14/145,402
• Publication Number:
  US 20140221257A1
• Time in Patent Office: 1,071 Days
• Field of Search: None
• US Class Current: 1/1
• CPC Class Codes: B82Y 30/00 Nanotechnology for materials or surface science, e.g. nanocomposites
• CPC Class Codes: B82Y 99/00 Subject matter not provided for in other groups of this subclass
• CPC Class Codes: C04B 14/062 Microsilica, e.g. colloïdal silica preparing microsilica slurries or suspensions C04B18/148
• CPC Class Codes: C04B 14/30 Oxides other than silica ferrites C04B14/363
• CPC Class Codes: C04B 14/303 Alumina
• CPC Class Codes: C04B 14/308 Iron oxide
• CPC Class Codes: C04B 20/008 Micro- or nanosized fillers, e.g. micronised fillers with particle size smaller than that of the hydraulic binder colloidal silica C04B14/062 ; silica fume C04B18/146
• CPC Class Codes: C04B 20/10 Coating or impregnating roofing granules E04D7/005
• CPC Class Codes: C04B 2111/00008 Obtaining or using nanotechnology related materials
• CPC Class Codes: C04B 28/02 containing hydraulic cements other than calcium sulfates
• CPC Class Codes: C09K 2208/10 Nanoparticle-containing well treatment fluids
• CPC Class Codes: C09K 8/426 for plugging
• CPC Class Codes: C09K 8/428 for squeeze cementing, e.g. for repairing
• CPC Class Codes: C09K 8/467 containing additives for specific purposes
• CPC Class Codes: C09K 8/62 Compositions for forming crevices or fractures
• CPC Class Codes: C09K 8/80 Compositions for reinforcing fractures, e.g. compositions of proppants used to keep the fractures open
• CPC Class Codes: E21B 33/14 for cementing casings into boreholes
• CPC Class Codes: E21B 43/267 reinforcing fractures by propping
• CPC Class Codes: Y10S 507/906 Solid inorganic additive in defined physical form
• CPC Class Codes: Y10S 977/963 Miscellaneous

Abstract

Disclosed embodiments relate to well treatment fluids and methods that utilize nano-particles. Exemplary nano-particles are selected from the group consisting of particulate nano-silica, nano-alumina, nano-zinc oxide, nano-boron, nano-iron oxide, and combinations thereof. Embodiments also relate to methods of cementing that include the use of nano-particles. An exemplary method of cementing comprises introducing a cement composition into a subterranean formation, wherein the cement composition comprises cement, water and a particulate nano-silica. Embodiments also relate to use of nano-particles in drilling fluids, completion fluids, simulation fluids, and well clean-up fluids.

Claims

1. A stimulation fluid comprising particles, wherein the particles are included as proppant in the stimulation fluid, wherein the particles have three size ranges disjointed from one another, wherein a first size range includes nano-particles from about 7 nm to about 50 nm, wherein a second size range includes particles from about 0.05 microns to about 0.5 microns, and wherein a third size range includes particles from about 200 microns to about 800 microns, wherein the nano-particles consist of a particulate nano-silica and nano-boron, wherein the nano-particles are non-colloidal and coated, wherein the coating is degradable;

wherein the nano-particles prevent fractures in a subterranean formation from fully closing upon the release of pressure therefrom and form conductive channels through which a fluid flows from or to the wellbore; and

wherein the stimulation fluid has a density from about 12 pounds per gallon to about 20 pounds per gallon.

2. The stimulation fluid of claim 1, wherein the stimulation fluid comprises at least one member selected from the group consisting of a gelling agent and a crosslinking agent.

3. The stimulation fluid of claim 1, wherein at least a portion of the nano-particles are deposited in one or more fractures of a subterranean formation.