Nanoparticle graphite-based minimum quantity lubrication method and composition
US-9080122-B2 · Jul 14, 2015 · US
High-temperature lubricants comprising elongated carbon nanoparticles for use in subterranean formation operations
US9528066B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9528066-B2 |
| Application number | US-201414329151-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 11, 2014 |
| Priority date | Aug 30, 2013 |
| Publication date | Dec 27, 2016 |
| Grant date | Dec 27, 2016 |
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- Title
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Abstract
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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
Opening claim text (preview).
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, the elongated carbon nanoparticles comprising an oxygen-containing functional group that serve as a chemical handle for functionalization 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, the functionalization comprising a water-solubilizing group, an oil-solubilizing group, or a combination of a water-solubilizing group and an oil-solubilizing group. 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. 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, the elongated carbon nanoparticles comprising an oxygen-containing functional group that serve as a chemical handle for functionalization 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, the functionalization comprising a water-solubilizing group, an oil-solubilizing group, or a combination of a water-solubilizing group and an oil-solubilizing group; and drilling a well bore in the subterranean formation with the drill bit. 7. The drill bit of claim 6 , wherein the oil-soluble lubricating base fluid has a decomposition temperature of greater than about 200° C. 8. The drill bit of claim 6 , wherein the water-soluble lubricating base fluid has a decomposition temperature of greater than about 120° C. 9. The method of claim 6 , wherein the elongated carbon nanoparticles are selected from the group consisting of graphene nanoribbons; carbon nanotubes; carbon nanohorns; and any combination thereof. 10. The method of claim 9 , 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. 11. The drill bit of claim 1 , wherein the elongated carbon nanoparticles are present in the range of from about 15% to about 80% by weight of the oil-soluble lubricating base fluid or the water-soluble lubricating base fluid. 12. The method of claim 6 , wherein the elongated carbon nanoparticles are present in the range of from about 15% to about 80% by weight of the oil-soluble lubricating base fluid or the water-soluble lubricating base fluid.
Assignees
Inventors
Classifications
used as base material · CPC title
used as base material · CPC title
used as base material · CPC title
used as base material · CPC title
- C10M125/02Primary
Carbon; Graphite · CPC title
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- What does patent US9528066B2 cover?
- 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.
- Who is the assignee on this patent?
- Halliburton Energy Services Inc
- What technology area does this patent fall under?
- Primary CPC classification C10M125/02. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Dec 27 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).