Well treatment fluids and methods utilizing nano-particles

Patent metadata

Field	Value
Publication number	US-9512352-B2
Application number	US-201314145402-A
Country	US
Kind code	B2
Filing date	Dec 31, 2013
Priority date	May 10, 2007
Publication date	Dec 6, 2016
Grant date	Dec 6, 2016

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.

First claim

What is claimed is:

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.

Assignees

• Halliburton Energy Services Inc

Inventors

• Roddy Craig Wayne
• Chatterji Jiten
• Cromwell Roger Stanley

Classifications

• C04B2111/00008

  Obtaining or using nanotechnology related materials · CPC title

• Y10S507/906

  Solid inorganic additive in defined physical form · CPC title

• B82Y99/00

  Subject matter not provided for in other groups of this subclass · CPC title

• C09K8/428

  for squeeze cementing, e.g. for repairing · CPC title

• C04B14/062

  Microsilica, e.g. colloïdal silica (preparing microsilica slurries or suspensions C04B18/148) · CPC title