Topside oil production equipment system for reduction in space and weight

Patent metadata

Field	Value
Publication number	US-10870801-B2
Application number	US-201815937187-A
Country	US
Kind code	B2
Filing date	Mar 27, 2018
Priority date	Dec 22, 2015
Publication date	Dec 22, 2020
Grant date	Dec 22, 2020

Abstract

A system and method for dehydrating crude oil on a floating production storage and offloading installation include a separator vessel to receive an incoming produced water stream, followed by a flash vessel, a treatment block, a crude oil storage tank, and an electrostatic treater. The treatment block includes a low pressure degasser followed by a compact electrostatic separator pre-treater or a compact electrostatic separator pre-treater followed by a low pressure degasser. The flash vessel and/or the low pressure degasser may employ an inlet cyclonic distributor and demisting cyclones, while the electrostatic treater may employ DUAL FREQUENCY® technology. The separator vessel may be a single horizontal two-phase separator/degasser or two vertical two-phase separator/degassers that operate in parallel with each receiving approximately 50 percent of the incoming produced water stream. The final outlet stream preferably contains no more than 0.5 BS&W and 285 milligrams per liter salt.

First claim

What is claimed is:

1. A system for dehydrating crude oil, the system comprising:
a means for reducing a gas content of a produced stream containing oil and water;
a treatment block configured to receive the reduced gas content stream, the treatment block including a degasser and an electrostatic separator; and
a cargo tank configured to receive an outlet stream of the treatment block; and
an electrostatic treater configured to receive an outlet stream of the cargo tank.

2. A system according to claim 1 , further comprising the electrostatic separator configured to receive an outlet stream of the degasser.

3. A system according to claim 1 , further comprising the degasser configured to receive an outlet stream of the electrostatic separator.

4. A system according to claim 1 , the electrostatic separator including at least two elongated vessels that are oriented at an incline and in fluid communication with one another.

5. A system for dehydrating crude oil, the system comprising:
means for reducing a gas content of a produced stream containing oil and water;
a treatment block configured to receive the reduced gas content stream, the treatment block including a degasser and an electrostatic separator;
a storage tank configured to receive an outlet stream of the treatment block; and
an electrostatic treater configured to receive an outlet stream of the storage tank.

6. A system according to claim 5 , further comprising the electrostatic separator configured to receive an outlet stream of the degasser.

7. A system according to claim 5 , further comprising the degasser configured to receive an outlet stream of the electrostatic separator.

8. A system according to claim 5 , the electrostatic separator including at least two elongated vessels that are oriented at an incline and in fluid communication with one another.

9. A system for dehydrating crude oil, the system comprising:
a flash vessel;
a treatment block coupled to the flash vessel, the treatment block including a degasser and an electrostatic separator;
a tank coupled to the treatment block; and
an electrostatic treater coupled to the tank.

10. The system of claim 9 , further comprising a high-pressure separator coupled to the flash vessel.

11. The system of claim 9 , wherein the electrostatic separator is configured to receive an outlet stream of the degasser.

12. The system of claim 9 , wherein the electrostatic separator includes at least two elongated vessels that are oriented at an incline and in fluid communication with one another.

13. The system of claim 9 , wherein the electrostatic separator is a compact electrostatic separator.

14. The system of claim 9 , wherein the degasser includes a cyclonic distributor and one or more demisting cyclones.

15. The system of claim 9 , further comprising a cyclonic distributor and one or more demisting cyclones coupled to the flash vessel.

16. The system of claim 9 , wherein the electrostatic separator is a vertically oriented unit.

17. The system of claim 9 , wherein the electrostatic separator is a vertically oriented compact electrostatic unit, and further comprising a high-pressure separator coupled to the flash vessel and an electrostatic treater coupled to the tank.

Assignees

• Cameron Solutions Inc

Inventors

• Sprenkel Marcus D
• Sams Gary W
• Mandewalkar S Pavankumar B
• Caires Fernandez Luis Eduardo

Classifications

• C10G53/02 Primary

  plural serial stages only · CPC title

• B01D17/02

  Separation of non-miscible liquids · CPC title

• C10G7/00

  Distillation of hydrocarbon oils · CPC title

• B01D17/0217

  by centrifugal force · CPC title

• B01D21/267

  by using a cyclone · CPC title