Oilfield drilling lubricant for water-based and oil-based systems
This disclosure provides compositions comprising a suspension package, wherein the suspension packaging consists of solids for suspending in one or more liquids, wherein the solids comprise at least one of: (1) diamond dust, nano-diamonds, or combinations thereof; (2) tungsten; (3) graphite, graphene, or combinations thereof; and (4) silicon carbide. Further, 0.25% through 6% by volume of the composition, with the one or more liquids being present, in a 14.0 ppg aqueous CaBr 2 solution, provides a coefficient of friction of less than 0.06 at a temperature between 250° F. and 400° F. at any time up through 10 minutes after combination of the 0.25% through 6% by volume of the composition to the 14.0 ppg aqueous CaBr 2 .
1. A composition comprising:
a suspension package, wherein the suspension package comprises solids for suspending in one or more liquids, wherein the solids comprise tungsten and at least one of: (1) diamond dust, nano-diamonds, or combinations thereof; (2) graphite, graphene, or combinations thereof; and (3) silicon carbide,
one or more activators consisting of clay-based activators and optionally: (i) water, (ii) surfactant(s), or (iii) both (i) and (ii); and
one or more clay-based thixotropic additives;
wherein from 0.25% through 6% by volume of the composition, with the one or more liquids being present, in a 14.0 ppg aqueous CaBr 2 solution, provides a coefficient of friction of equal to or less than 0.06 at a temperature between 250° F. and 400° F. at any time up through 10 minutes after combining the 0.25% through 6% by volume of the composition with the 14.0 ppg aqueous CaBr 2 .
2. The composition of claim 1 , wherein the one or more liquids are present in the composition, wherein the one or more liquids comprise one or more vegetable oils.
3. The composition of claim 1 , wherein the suspension package comprises at least two of: (1) diamond dust, nano-diamonds, or combinations thereof; (2) graphite, graphene, or combinations thereof; and (3) silicon carbide.
4. The composition of claim 1 , wherein the one or more liquids are present in the composition, wherein the one or more liquids comprise one or more synthetic oils.
5. The composition of claim 1 , wherein the water is present as one of the one or more activators in the composition.
6. The composition of claim 4 , wherein the one or more liquids further comprise one or more vegetable oils.
7. The composition of claim 1 , wherein the suspension package is 10 wt. % or less of the composition when the one or more liquids are present in the composition.
8. The composition of claim 1 , wherein the particle size of each of the diamond dust, nano-diamonds or combinations thereof is within a range from 5 through 25 nm.
9. The composition of claim 1 , wherein the particle size of each of the graphite, graphene, or combinations thereof is greater than 50 nm.
10. The composition of claim 1 , wherein the particle size of the silicon carbide is within a range from 10 through 160 nm.
11. The composition of claim 1 , wherein the particle size of the tungsten is within a range from 35 through 90 nm.
12. The composition of claim 1 , wherein the suspension package further comprises one or more additives.
13. The composition of claim 1 , wherein the suspension package comprises: (1) diamond dust, nano-diamonds, or combinations thereof; (2) graphite, graphene, or combinations thereof; and (3) silicon carbide.
14. The composition of claim 1 , wherein from 2% through 6% by volume of the composition, with the one or more liquids being present, in a 9.6 ppg aqueous CaCl 2 solution, provides a coefficient of friction of equal to or less than 0.03 at a temperature of 75° F. at any time up through 10 minutes after combining the from 2% through 6% by volume of the composition with the 9.6 ppg aqueous CaCl 2 solution.
15. The composition of claim 1 , wherein from 2% through 6% by volume of the composition, with the one or more liquids being present, in a 11.6 ppg aqueous CaCl 2 solution, provides a coefficient of friction of equal to or less than 0.12 at a temperature of 75° F. at any time up through 10 minutes after combining of the from 2% through 6% by volume of the composition with the 11.6 ppg aqueous CaCl 2 solution.
16. The composition of claim 1 , wherein from 2% through 6% by volume of the composition, with the one or more liquids being present, in a 12.0 ppg aqueous CaBr 2 solution, provides a coefficient of friction of less than 0.04 at a temperature of 75° F. at any time up through 10 minutes after combining of equal to or the from 2% through 6% by volume of the composition with the 12.6 ppg aqueous CaBr 2 solution.
17. The composition of claim 1 , wherein from 2% through 6% by volume of the composition, with the one or more liquids being present, in a 13.0 ppg aqueous CaBr 2 solution, provides a coefficient of friction of equal to or less than 0.11 at a temperature of 75° F. at any time up through 10 minutes after combining of the from 0.25% through 6% by volume of the composition with the 13.0 ppg aqueous CaBr 2 solution.