Well treatment fluids and methods utilizing nano-particles

Patent metadata

Field	Value
Publication number	US-9512351-B2
Application number	US-201314025638-A
Country	US
Kind code	B2
Filing date	Sep 12, 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 method of treating a subterranean formation comprising:
providing particles, wherein the particles comprise 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 comprise nano-boron, wherein the nano-particles are particulate and non-colloidal and encapsulated in a degradable coating;
including the particles in a treatment fluid;
introducing into the subterranean formation the treatment fluid at or above a pressure sufficient to create or enhance one or more fractures in the subterranean formation, wherein the nano-particles are included as proppant in the treatment fluid; and
depositing at least a portion of the nano-particles in the one or more fractures, wherein the fractures are prevented from fully closing upon the release of pressure and wherein the fractures form conductive channels through which fluids may flow.

2. The method of claim 1 , wherein the nano-particles further comprise nano-silica.

3. The method of claim 1 , wherein the nano-particles further comprise at least one nano-particle selected from the group consisting of nano-aluminum, nano-zinc oxide, nano-iron oxide and combinations thereof.

4. The method of claim 1 , further comprising producing one or more hydrocarbons from a well bore penetrating the subterranean formation.

5. A method of treating a subterranean formation comprising:
providing particulate materials, wherein the particulate materials comprise 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 comprise nano-boron, wherein the nano-particles are non-colloidal and encapsulated in a degradable coating;
including the particulate materials in a treatment fluid;
introducing the treatment fluid comprising the particulate materials into the subterranean formation at or above a pressure sufficient to create or enhance one or more fractures in the subterranean formation, wherein the fractures form conductive channels through which fluids may flow,
determining a packing volume fraction for the particulate materials in the treatment fluid.

6. The method of claim 5 , wherein the nano-particles further comprise nano-silica.

7. The method of claim 5 , wherein the nano-particles further comprise a particulate nano-silica.

8. The method of claim 5 , wherein the nano-particles further comprise at least one nano-particle selected from the group consisting of nano-aluminum, nano-zinc oxide, nano-iron oxide and combinations thereof.

9. A method of treating a subterranean formation comprising:
providing particles, wherein the nano-particles are particulate and non-colloidal, wherein the nanoparticles comprise nano-boron;
including the nano-particles in a treatment fluid;
introducing into the subterranean formation the treatment fluid at or above a pressure sufficient to create or enhance one or more fractures in the subterranean formation, wherein the nano-particles are included as proppant in the treatment fluid; and
depositing at least a portion of the nano-particles in the one or more fractures, wherein the fractures are prevented from fully closing upon the release of pressure and wherein the fractures form conductive channels through which fluids may flow.

10. The method of claim 9 , wherein the nano-particles further comprise nano-silica.

11. The method of claim 9 , wherein the proppant comprises a particulate blend of at least particles less than 0.5 microns and particulates greater than 1 millimeter.

12. The method of claim 9 , wherein the nano-particles have a particle size of less than or equal to about 100 nm.

13. The method of claim 9 , wherein the nano-particles have a particle size in the range of from about 1 nm to about 100 nm.

14. The method of claim 9 , further comprising producing one or more hydrocarbons from a well bore penetrating the subterranean formation.

Assignees

• Halliburton Energy Services Inc

Inventors

• Roddy Craig Wayne
• Chatterji Jiten
• Cromwell Roger Stanley

Classifications

• C09K2208/10

  Nanoparticle-containing well treatment fluids · CPC title

• C09K8/62

  Compositions for forming crevices or fractures · CPC title

• C09K8/426

  for plugging · CPC title

• E21B43/267

  reinforcing fractures by propping · CPC title

• Y10S977/963

  Miscellaneous · CPC title