IP Library › Granted Patent US 11,104,837
Granted Patent B2
US 11,104,837 · App. 16/557,951 · Granted Aug 31, 2021

Drilling fluids and methods for making the same

Inventor: John Charles Forrest (Louisburg, KS)
Assignee: Clean Slurry Technology, Inc.
C09K8/34E21B21/062
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Quick Facts
Patent No.
US 11,104,837
App. No.
16/557,951
Granted
Aug 31, 2021
Kind
B2
Abstract

A mixture suitable for use in a drilling fluid includes an amount base fluid and recycled fuel oil in an amount sufficient to provide an emulsion stability of the drilling fluid of about 500 volts or greater.

Claims (27)

1. A mixture suitable for use in a drilling fluid comprising:

an amount of base fluid; and

recycled motor oil in an amount sufficient to provide an emulsion stability of a drilling fluid of about 500 volts or greater; and

wherein the recycled motor oil includes a detergent additive.

2. The mixture of claim 1 , wherein the base fluid comprises kerosene.

3. The mixture of claim 1 , wherein the base fluid comprises mineral oil.

4. The mixture of claim 1 , wherein the mixture comprises up to about 50% recycled motor oil.

5. A drilling fluid comprising an amount of base fluid and recycled motor oil in an amount sufficient to provide an emulsion stability of about 500 volts or greater.

6. The drilling fluid of claim 5 , wherein the base fluid comprises at least one of kerosene and mineral oil.

7. The drilling fluid of claim 5 , wherein a ratio between the amount of base fluid and the amount of recycled fuel oil is up to about 1:1.

8. The drilling fluid of claim 5 , wherein the drilling fluid comprises virgin drilling fluid.

9. The drilling fluid of claim 5 , wherein a portion of the drilling fluid comprises recycled drilling fluid.

10. A drilling fluid comprising an amount of base fluid comprising at least one of kerosene or mineral oil and recycled motor oil in an amount sufficient to provide an emulsion stability of about 500 volts or greater; and

wherein the recycled motor oil includes a detergent additive.

11. The drilling fluid of claim 10 , wherein the base fluid is kerosene.

12. The drilling fluid of claim 10 , wherein the base fluid is mineral oil.

13. The drilling fluid of claim 10 , wherein a ratio between the amount of base fluid and the amount of recycled fuel oil is up to about 1:1.

14. The drilling fluid of claim 10 , wherein the drilling fluid comprises virgin drilling fluid.

15. The drilling fluid of claim 10 , wherein a portion of the drilling fluid comprises recycled drilling fluid.

16. A method of forming a drilling fluid comprising:

mixing a selected amount of base fluid with a selected amount of recycled motor oil to form a mixture; and

mixing the mixture with other components to form a drilling fluid, the amount of recycled motor oil selected to provide an emulsion stability of the drilling fluid of about 500 volts or greater and reduce an amount of emulsifiers in the drilling fluid; and

wherein the recycled motor oil includes a detergent additive.

17. The method of claim 16 , wherein the base fluid comprises at least one of kerosene and mineral oil.

18. The method of claim 16 , wherein mixing the mixture with other components to form a drilling fluid comprises mixing the mixture with other components to form a virgin drilling fluid.

19. The method of claim 16 , wherein mixing the mixture with other components to form a drilling fluid comprises mixing the mixture with recovered drilling fluid.

20. The method of claim 16 , wherein the other components include diesel.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 30, 2019
From: FORREST, JOHN CHARLES
To: CLEAN SLURRY TECHNOLOGY, INC.
Reel/Frame 050227/0602 →
Continuity (4)
Continuation 16134747 · Sep 18, 2018
Provisional Application 62642256 · Mar 13, 2018
Provisional Application 62578562 · Oct 30, 2017
Related Publication 20190382640A1 · Dec 19, 2019