Electrically conductive oil-based fluids

Patent metadata

Field	Value
Publication number	US-2016017202-A1
Application number	US-201514804741-A
Country	US
Kind code	A1
Filing date	Jul 21, 2015
Priority date	Jul 21, 2014
Publication date	Jan 21, 2016
Grant date	—

Abstract

Capped nanoparticles may be added to an oil-based fluid to improve the electrical conductivity of the oil-based fluid. The oil-based fluid may be a drilling fluid, a completion fluid, a drill-in fluid, a stimulation fluid, a servicing fluid, and combinations thereof. In a non-limiting embodiment, the oil-based fluid composition may be circulated in a subterranean reservoir wellbore.

First claim

What is claimed is:

1 . A fluid composition having electrically conductive properties; wherein the fluid composition comprises:
an oil-based fluid; and electrically conductive capped carbon-based nanoparticles selected from the group consisting of graphene nanoparticles, graphene platelets, graphene oxide, nanorods, nanoplatelets, nanotubes, carbon blacks, carbon nanofibers, and combinations thereof.

2 . The fluid composition of claim 1 , wherein the electrically-conductive capped carbon-based nanoparticles are present in the base fluid in an amount effective to improve the performance of a downhole tool by increasing the electrical conductivity of the fluid composition as compared to an otherwise identical fluid absent the electrically conductive capped carbon-based nanoparticles.

3 . The fluid composition of claim 1 , wherein the amount of electrically conductive capped carbon-based nanoparticles within the fluid composition ranges from about 0.0001 wt % to about 25 wt %.

4 . The fluid composition of claim 1 further comprising an additional component selected from the group consisting of non-capped carbon-based particles, non-capped metal carbonyl particles, non-capped metal nanoparticles, and combinations thereof.

5 . The fluid composition of claim 1 , wherein the electrically conductive capped carbon-based nanoparticles are selected from the group consisting of physically capped carbon-based nanoparticles, chemically capped carbon-based nanoparticles, and combinations thereof.

6 . The fluid composition of claim 1 , wherein the electrically conductive capped carbon-based nanoparticles are formed by reacting non-capped carbon-based nanoparticles with a capping component selected from the group consisting of metal carbonyl species, metal nanoparticles, and combinations thereof.

7 . A fluid composition comprising:
an oil-based fluid; and electrically conductive capped carbon-based nanoparticles selected from the group consisting of graphene nanoparticles, graphene platelets, graphene oxide, nanorods, nanoplatelets, nanotubes, carbon blacks, carbon nanofibers, and combinations thereof; wherein the amount of carbon-based nanoparticles within the fluid composition ranges from about 0.0001 wt % to about 25 wt %.

8 . The fluid composition of claim 7 further comprising an additional component selected from the group consisting of non-capped carbon-based particles, metal carbonyl particles, metal nanoparticles, and combinations thereof.

9 . The fluid composition of claim 7 , wherein the electrically conductive capped carbon-based nanoparticles are selected from the group consisting of physically capped carbon-based nanoparticles, chemically capped carbon-based nanoparticles, and combinations thereof.

10 . The fluid composition of claim 7 , wherein the electrically conductive capped carbon-based nanoparticles are formed by reacting non-capped carbon-based nanoparticles with a capping component selected from the group consisting of metal carbonyl species, metal nanoparticles, and combinations thereof.

11 . A method comprising:
circulating a fluid composition into a subterranean reservoir wellbore; wherein the fluid composition comprises an oil-based fluid; and wherein the fluid composition comprises electrically conductive capped carbon-based nanoparticles selected from the group consisting of graphene nanoparticles, graphene platelets, graphene oxide, nanorods, nanoplatelets, nanotubes, carbon blacks, carbon nanofibers, and combinations thereof.

12 . The method of claim 11 further comprising adding the electrically conductive capped carbon-based nanoparticles to the fluid composition prior to circulating the fluid composition into the subterranean reservoir wellbore.

13 . The method of claim 11 , wherein the fluid composition further comprises an additional component selected from the group consisting of non-capped carbon-based particles, non-capped metal carbonyl particles, non-capped metal nanoparticles, and combinations thereof.

14 . The method of claim 11 , wherein the amount of electrically conductive capped carbon-based nanoparticles within the fluid composition ranges from about 0.0001 wt % to about 25 wt %.

15 . The method of claim 11 , wherein the electrically conductive capped carbon-based nanoparticles are selected from the group consisting of physically capped carbon-based nanoparticles, chemically capped carbon-based nanoparticles, and combinations thereof.

16 . The method of claim 11 , wherein the electrically conductive capped carbon-based nanoparticles are formed from reacting non-capped carbon-based nanoparticles with a capping component selected from the group consisting of metal carbonyl species, metal nanoparticles, and combinations thereof.

17 . The method of claim 11 , further comprising a procedure selected from the group consisting of well logging, drilling, completion, fracturing, acidizing, stimulating, cementing, and combinations thereof.

18 . The method of claim 12 where the fluid composition is made by a process comprising:
adding an effective amount of the electrically conductive capped carbon-based nanoparticles to an oil-based fluid to form a fluid composition having improved electrical properties.

19 . The method of claim 18 , wherein the amount of electrically conductive capped carbon-based nanoparticles within the fluid composition ranges from about 0.0001 wt % to about 25 wt %.

Assignees

• Baker Hughes Inc

Inventors

• Yang Jianzhong
• Garcia Alyssa Renee
• Arensdorf Joseph J
• Clapper Dennis K
• Darugar Qusai A

Classifications

• C09K2208/10

  Nanoparticle-containing well treatment fluids · CPC title

• E21B7/00

  Special methods or apparatus for drilling · CPC title

• E21B47/00

  Survey of boreholes or wells (monitoring pressure or flow of drilling fluid E21B21/08) · CPC title

• E21B43/26

  by forming crevices or fractures · CPC title

• C09K8/82

  Oil-based compositions (C09K8/64 takes precedence) · CPC title