High-temperature lubricants comprising elongated carbon nanoparticles for use in subterranean formation operations

Patent metadata

Field	Value
Publication number	US-2016010022-A1
Application number	US-201414329151-A
Country	US
Kind code	A1
Filing date	Jul 11, 2014
Priority date	Aug 30, 2013
Publication date	Jan 14, 2016
Grant date	—

Abstract

An embodiment disclosed herein provides a high-temperature lubricant comprising an oil-soluble lubricating base fluid or a water-soluble lubricating base fluid; and elongated carbon nanoparticles that align in flow. In some embodiments, the lubricating composition may be selected from the group consisting of graphene nanoribbons; carbon nanotubes; carbon nanohorns; and any combination thereof.

First claim

The invention claimed is:

1 . A drill bit comprising:
a rotary joint defining a sealed segment and an unsealed segment,
wherein the sealed segment comprises a high-temperature lubricant comprising an oil-soluble lubricating base fluid or a water-soluble lubricating base fluid and elongated carbon nanoparticles that align in flow in response to frictional forces in the oil-soluble lubricating base fluid or the water-soluble lubricating base fluid.

2 . The drill bit of claim 1 , wherein the oil-soluble lubricating base fluid has a decomposition temperature of greater than about 200° C.

3 . The drill bit of claim 1 , wherein the water-soluble lubricating base fluid has a decomposition temperature of greater than about 120° C.

4 . The drill bit of claim 1 , wherein the elongated carbon nanoparticles are selected from the group consisting of graphene nanoribbons; carbon nanotubes; carbon nanohorns; and any combination thereof.

5 . The drill bit of claim 4 , wherein the graphene nanoribbons are in the range of from about 5 nm to about 50 nm in width and in the range of from about 100 nm to about 2 μm in length.

6 . The drill bit of claim 5 , wherein the elongated carbon nanoparticles are functionalized so as to at least partially solubilize the elongated carbon nanoparticles into the oil-soluble lubricating base fluid or the water-soluble lubricating base fluid.

7 . The drill bit of claim 6 , wherein the elongated carbon nanoparticles are functionalized with a water-solubilizing group; an oil-solubilizing group; and any combination thereof.

8 . The drill bit of claim 7 , wherein the water-solubilizing group is selected from the group consisting of a carboxyl group; a sulfonate group; a sulfate group; a phosphate group; a phosphonate group; a saccharide group; a nucleoside group; a nucleotide group; a peptide group; a glycol group; a polyethylene oxide group; a polyethylene glycol group; a hydroxyl group; a sulfuric acid ester group; an epoxide group; an aldehyde group; a carbonyl group; a haloformyl group; a carbonate ester group; an ester group; a methoxy group; a hydroperoxy group; a peroxy group; an ether group; a meiacetal group; a meniketal group; an acetal group; an orthoester group; an orthocarbonate ester group; and any combination thereof.

9 . The drill bit of claim 7 , wherein the oil-solubilizing group is a hydrocarbyl group selected from the group consisting of an alkyl group; an alkenyl group; an alkynyl group; a phenyl group; an aryl group; a cycloalkyl group; a prenyl group; a trityl group; a methanidyl group; a adamantan-2-yl group; a cycloalkenyl group; a cycloalkatrienyl group; a cycloalkadienyl group; a C 60 fullerene group; and any combination thereof.

10 . A method of drilling a subterranean formation comprising:
providing a drill bit comprising a rotary joint defining a sealed segment and an unsealed segment,
wherein the sealed segment comprises a high-temperature lubricant comprising an oil-soluble lubricating base fluid or a water-soluble lubricating base fluid and elongated carbon nanoparticles that align in flow in response to frictional forces in the oil-soluble lubricating base fluid or the water-soluble lubricating base fluid; and
drilling a well bore in the subterranean formation with the drill bit.

11 . The drill bit of claim 10 , wherein the oil-soluble lubricating base fluid has a decomposition temperature of greater than about 200° C.

12 . The drill bit of claim 10 , wherein the water-soluble lubricating base fluid has a decomposition temperature of greater than about 120° C.

13 . The method of claim 10 , wherein the elongated carbon nanoparticles are selected from the group consisting of graphene nanoribbons; carbon nanotubes; carbon nanohorns; and any combination thereof.

14 . The drill bit of claim 14 , wherein the graphene nanoribbons are in the range of from about 5 nm to about 50 nm in width and in the range of from about 100 nm to about 2 μm in length.

15 . The method of claim 10 , wherein the elongated carbon nanoparticles are functionalized so as to at least partially solubilize the elongated carbon nanoparticles into the oil-soluble lubricating base fluid or the water-soluble lubricating base fluid.

16 . The method of claim 15 , wherein the elongated carbon nanoparticles are functionalized with a water-solubilizing group; an oil-solubilizing group; and any combination thereof.

17 . The method of claim 16 , wherein the water-solubilizing group is selected from the group consisting of a carboxyl group; a sulfonate group; a sulfate group; a phosphate group; a phosphonate group; a saccharide group; a nucleoside group; a nucleotide group; a peptide group; a glycol group; a polyethylene oxide group; a polyethylene glycol group; a hydroxyl group; a sulfuric acid ester group; an epoxide group; an aldehyde group; a carbonyl group; a haloformyl group; a carbonate ester group; an ester group; a methoxy group; a hydroperoxy group; a peroxy group; an ether group; a meiacetal group; a meniketal group; an acetal group; an orthoester group; an orthocarbonate ester group; and any combination thereof.

18 . The method of claim 16 , wherein the oil-solubilizing group is a hydrocarbyl group selected from the group consisting of an alkyl group; an alkenyl group; an alkynyl group; a phenyl group; an aryl group; a cycloalkyl group; a prenyl group; a trityl group; a methanidyl group; a adamantan-2-yl group; a cycloalkenyl group; a cycloalkatrienyl group; a cycloalkadienyl group; a C 60 fullerene group; and any combination thereof.

19 . A high-temperature lubricant comprising:
an oil-soluble lubricating base fluid having a decomposition temperature of greater than about 200° C.; and elongated nanoparticles that align in flow in response to frictional forces in the oil-soluble lubricating base fluid,
wherein the elongated nanoparticles are functionalized with an oil-solubilizing group selected from the group consisting of a hydrocarbyl group selected from the group consisting of an alkyl group; an alkenyl group; an alkynyl group; a phenyl group; an aryl group; a cycloalkyl group; a prenyl group; a trityl group; a methanidyl group; a adamantan-2-yl group; a cycloalkenyl group; a cycloalkatrienyl group; a cycloalkadienyl group; a C 60 fullerene group; and any combination thereof, and
wherein functionalization at least partially solubilizes the elongated carbon nanoparticles into the oil-soluble lubricating base fluid.

20 . The high-temperature lubricant of claim 19 , wherein the oil-soluble lubricating base fluid is selected from the group consisting of animal oil; vegetable oil; mineral oil; diesel oil, crude oil; a petroleum derivative; a glycol; an ester; a silicone; a stearate; a polyoxyethylene; an oil-soluble polymer; and any combination thereof.

21 . The high-temperature lubricant of claim 19 , wherein the elongated carbon nanoparticles are selected from the group consisting of graphene nanoribbons; carbon nanotubes; carbon nanohorns; and any combination thereof.

22 . The high-temperature lubricant of claim 21 , wherein the graphene nanoribbons are in the range of from about 5 nm to about 50 nm in width and in the range of from about 100 nm to about 2 μm in length.

23 . A high-temperature lubricant comprising:
a water-soluble lubricating base fluid having a decomposition temperature of greater than about 120° C.; and elongated nanoparticles that align in flow in response to frictional forces in

Assignees

• Halliburton Energy Services Inc

Inventors

• Sui Ping
• Duckworth David

Classifications

• E21B10/24

  characterised by lubricating details (E21B10/23 takes precedence) · CPC title

• C10M2201/14

  inorganic compounds surface treated with organic compounds · CPC title

• C10M2207/2805

  used as base material · CPC title

• C10M2203/1006

  used as base material · CPC title

• C10M2209/1085

  used as base material · CPC title