IP Library Granted Patent US 11,384,272
Granted Patent B2
US 11,384,272 · App. 16/928,031 · Granted Jul 12, 2022

Processing produced fluids for fluid recovery

Inventors: Stephen John Horner (Needville, TX); Ronald Oliver Bosch (Houston, TX)
Assignee: Multi-Chem Group, LLC
C09K8/28C09K8/36C09K8/532E21B43/34C09K8/602C09K2208/20C09K2208/22C09K2208/26
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Quick Facts
Patent No.
US 11,384,272
App. No.
16/928,031
Granted
Jul 12, 2022
Kind
B2
Abstract

The present disclosure relates to methods for adding a recirculation chemical composition to a hydrocarbon containing stream. The recirculation chemical composition may be an emulsion breaker. The hydrocarbon containing stream may be separated into a stream containing water and a stream containing oil. The stream containing oil may be contacted in a water wash unit, and the residual emulsion breaker may be removed from the stream containing oil.

Claims (24)

1. A method comprising:

adding a recirculation chemical composition to a hydrocarbon containing stream, wherein the recirculation chemical composition is an emulsion breaker, the hydrocarbon containing stream in fluid communication with a well;

separating the hydrocarbon containing stream into a stream containing water and a stream containing oil;

contacting the stream containing oil in a water wash unit; and

removing residual emulsion breaker from the stream containing oil.

2. The method of claim 1 , further comprising contacting the hydrocarbon containing stream for up to 30 minutes prior to separating the hydrocarbon containing stream into the stream containing water and a stream containing oil.

3. The method of claim 1 further comprising recirculating the stream containing water.

4. The method of claim 1 further comprising recirculating the stream containing oil.

5. The method of claim 1 further comprising recirculating the stream containing water and the stream containing oil.

6. The method of claim 1 , wherein the residual emulsion breaker is removed in an amount of about 45% to about 77%.

7. The method of claim 1 , wherein the method is accomplished with existing facility equipment.

8. The method of claim 1 , wherein the method is accomplished with temporary vessels.

9. The method of claim 1 , wherein the recirculation chemical composition comprises at least one additive selected from the group consisting of acid catalyzed phenol-acid formaldehyde resins, base catalyzed phenol-formaldehyde resins, epoxy resins, polyethyleneimines, polyamines, di-epoxides, polyols, and combinations thereof.

10. The method of claim 1 , wherein the hydrocarbon containing stream comprises a viscosified treatment fluid.

11. The method of claim 1 , wherein the hydrocarbon containing stream is a water-in-oil emulsion.

12. The method of claim 1 , wherein the recirculation chemical composition is added at a concentration of about 5 ppm to 200 ppm to the water.

13. The method of claim 1 , wherein the separating the hydrocarbon containing stream comprises gravity separation, enhanced gravity separation, electrocoalescence separation, flotation separation, heat accelerated coalescence separation, flocculation separation, simple gravity separation, or combinations thereof.

14. The method of claim 1 , wherein separating the hydrocarbon containing stream comprises at least one separation vessel selected from the group consisting of free water knock-out vessels, electrostatic coalescers, heater treaters, desalters, flotation units, corrugated plate interceptors, hydrocyclones, centrifudges, and combinations thereof.

15. The method of claim 4 , wherein a portion of the stream containing oil is drawn off as an oil product stream after contacting in the water wash unit and before recirculating a remainder of the stream containing oil.

16. The method of claim 9 , wherein the additive is present in a concentration of about 5 ppm to about 200 ppm of the recirculated chemical composition.

17. The method of claim 1 wherein the recirculation chemical composition is added at a load of about 0.25% to about 2.0% of the hydrocarbon containing stream.

18. The method of claim 1 , wherein the residual emulsion breaker is removed in an amount of about 41% to about 80%.

19. The method of claim 1 , further comprising applying a hydrogen sulfide scavenger through an in-line injection system to disperse the hydrogen sulfide scavenger into the hydrocarbon containing stream.

20. The method of claim 19 , wherein the hydrogen sulfide scavenger is selected from the group consisting of triazine scavengers, solid scavengers, oxidizing chemicals, aldehydes, metal carboxylates and chelates, and combinations thereof.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded May 10, 2021
From: MULTI-CHEM GROUP, LLC
To: HALLIBURTON ENERGY SERVICES, INC.
Reel/Frame 056681/0849 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jul 15, 2020
From: HORNER, STEPHEN JOHN; BOSCH, RONALD OLIVER
To: MULTI-CHEM GROUP, LLC
Reel/Frame 053214/0350 →