Dynamic ferrofluid shield for well control

Patent metadata

Field	Value
Publication number	US-11840903-B2
Application number	US-202117643334-A
Country	US
Kind code	B2
Filing date	Dec 8, 2021
Priority date	Dec 8, 2021
Publication date	Dec 12, 2023
Grant date	Dec 12, 2023

Abstract

A method includes locating a first set of electromagnetic field emitting devices in a vicinity of the pressure source, using the first set of electromagnetic field emitting devices to generate a first electromagnetic field in a first shape that forms an enclosure containing the pressure source, pumping a magnetic fluid into the enclosure at a pumping pressure, and increasing the pumping pressure to overcome the pressure from the pressure source.

First claim

What is claimed:

1. A method for containing pressure coming from a pressure source, the method comprising:
locating a first set of electromagnetic field emitting devices in a vicinity of the pressure source;
using the first set of electromagnetic field emitting devices to generate a first electromagnetic field in a first shape that forms an enclosure containing the pressure source;
pumping a magnetic fluid into the enclosure at a pumping pressure; and
increasing the pumping pressure to overcome the pressure from the pressure source.

2. The method of claim 1 , wherein the pressure source comprises a wellhead.

3. The method of claim 2 , wherein increasing the pumping pressure to overcome the pressure from the pressure source comprises stopping fluid from flowing from the wellhead.

4. The method of claim 1 , wherein the magnetic fluid comprises a ferrofluid.

5. The method of claim 1 , wherein pumping the magnetic fluid into the enclosure comprises filling the enclosure from a first portion proximal the pressure source to a second portion distal the pressure source.

6. The method of claim 1 , further comprising locating a second set of electromagnetic field emitting devices in the vicinity of the pressure source, wherein the second set of electromagnetic field emitting devices are located closer to the pressure source than the first set of electromagnetic field emitting devices.

7. The method of claim 6 , further comprising using the second set of electromagnetic field emitting devices to generate a second electromagnetic field in a second shape to form an interstitial space between the first electromagnetic field and the second electromagnetic field.

8. The method of claim 7 , wherein pumping the magnetic fluid into the enclosure at the pumping pressure comprises pumping the magnetic fluid into the interstitial space between the first electromagnetic field and the second electromagnetic field.

9. The method of claim 7 , wherein the first shape and the second shape are a dome-like shape.

10. The method of claim 1 , further comprising securing the pressure source using standard well control equipment.

11. A system for containing pressure coming from a pressure source, the system comprising:
a first set of electromagnetic field emitting devices;
a first electromagnetic field, created by the first set of electromagnetic field emitting devices, having a first shape that forms an enclosure;
a vessel containing a magnetic fluid; and
a pump configured to pump the magnetic fluid, at a pumping pressure, from the vessel into the enclosure, wherein the pumping pressure is adjustable to overcome the pressure coming from the pressure source.

12. The system of claim 11 , wherein the first set of electromagnetic field emitting devices each comprise a magnetized superconductor and an antenna.

13. The system of claim 12 , wherein the first shape is controlled by a position of each antenna on each electromagnetic field emitting device.

14. The system of claim 11 , wherein the first set of electromagnetic field emitting devices are powered by a supercapacitor.

15. The system of claim 11 , wherein the first set of electromagnetic field emitting devices are maneuverable.

16. The system of claim 11 , wherein the pump directs the magnetic fluid into the enclosure using a conduit that passes through the first electromagnetic field.

17. The system of claim 11 , further comprising a second set of electromagnetic field emitting devices.

18. The system of claim 17 , wherein the second set of electromagnetic field emitting devices are disposed within the enclosure.

19. The system of claim 18 , further comprising a second electromagnetic field, created by the second set of electromagnetic field emitting devices, having a second shape that forms an interstitial space between the first electromagnetic field and the second electromagnetic field.

20. The system of claim 19 , wherein the first shape and the second shape are a dome-like shape.

Assignees

• Saudi Arabian Oil Co

Inventors

• Tulbah Faris Hasan
• Lastra Rafael Adolfo

Classifications

• E21B33/06 Primary

  Blow-out preventers {, i.e. apparatus closing around a drill pipe, e.g. annular blow-out preventers (rotating blow-out preventers E21B33/085)} · CPC title

• H01F1/447

  characterised by magnetoviscosity, e.g. magnetorheological, magnetothixotropic, magnetodilatant liquids (electrorheological fluids C10M171/001) · CPC title

• E21B43/0122 Primary

  Collecting oil or the like from a submerged leakage (cleaning or keeping clear the surface of open water from oil or the like E02B15/04) · CPC title

• H01F1/445

  the magnetic component being a compound, e.g. Fe3O4 (H01F1/447 takes precedence) · CPC title