Isolation and filtration object, system, and method

Patent metadata

Field	Value
Publication number	US-12024974-B2
Application number	US-202217893413-A
Country	US
Kind code	B2
Filing date	Aug 23, 2022
Priority date	Aug 23, 2022
Publication date	Jul 2, 2024
Grant date	Jul 2, 2024

Abstract

An isolation and filtration object including a volume of material having a first geometry wherein permeability is relatively lower, the geometry being that of a plug landable on a landing feature and a second geometry where permeability is relatively higher, the second geometry being larger than the first geometry and occupy a flow path in a borehole in which the plug is deployed. An isolation and filtration system including a housing, a plug seat in the housing, and an isolation and filtration object disposable on the plug seat. A borehole system including a borehole in a subsurface formation, a string in the borehole, and an isolation and filtration system connected to the string. A method for operating a borehole including migrating a plug to a seat in a housing, landing the plug in the seat, differentiating pressure across the plug, and transitioning the plug to the second geometry.

First claim

What is claimed is:

1. An isolation and filtration object comprising:
a volume of shape memory material having a first geometry and a first permeability, the first geometry being that of a plug landable on a landing feature; and
the volume of shape memory material also configured to assume a second geometry having a second permeability, the second permeability being higher than the first permeability, the second geometry having at least one dimension that is larger than the first geometry.

2. The object as claimed in claim 1 , wherein the plug is a ball.

3. The object as claimed in claim 1 , wherein the shape memory material first geometry is spherical and the second geometry is cigar-shaped.

4. An isolation and filtration system comprising:
a housing;
a plug seat in the housing; and
an isolation and filtration object as claimed in claim 1 disposable on the plug seat.

5. The system as claimed in claim 4 wherein the housing includes a port extending through a side wall of the housing.

6. The system as claimed in claim 5 wherein the plug seat is a part of a sleeve.

7. The system as claimed in claim 6 wherein the sleeve in a first position covers the port and in a second position reveals the port.

8. The system as claimed in claim 4 wherein the isolation and filtration object is responsive to an input to change from the first geometry to the second geometry.

9. The system as claimed in claim 8 wherein the input is an activation fluid.

10. The system as claimed in claim 9 wherein the activation fluid is a wellbore fluid.

11. The system as claimed in claim 9 wherein the activation fluid is an applied fluid.

12. The system as claimed in claim 9 wherein the input is a borehole parameter.

13. A borehole system comprising:
a borehole in a subsurface formation;
a string in the borehole; and
an isolation and filtration system as claimed in claim 4 connected to the string.

14. A method for operating a borehole comprising:
migrating an isolation and filtration object in the first geometry a plug as claimed in claim 1 to a seat in a housing;
landing the plug in the seat;
differentiating pressure across the plug; and
transitioning the plug to the second geometry.

15. The method as claimed in claim 14 wherein the transitioning includes applying an input.

16. The method as claimed in claim 15 wherein the input is an activation fluid.

17. The method as claimed in claim 14 further comprising filtering fluid through the plug.

18. The method as claimed in claim 17 wherein the filtering is through a port in a wall of the housing.

19. The method as claimed in claim 14 further including causing the plug to disappear and replacing the plug with a new plug comprising a volume of material having a first geometry wherein permeability is lower than when the new plug assumed a second geometry, the first geometry being that of a plug landable on a landing feature; and the second geometry having permeability is higher than when the new plug is in the first geometry, the second geometry being larger in at least one dimension than the first geometry.

Assignees

• Stone Matthew
• Andrew Colin
• Baker Hughes Oilfield Operations Llc

Inventors

• Stone Matthew
• Andrew Colin

Classifications

• E21B29/02

  by explosives or by thermal or chemical means {(freeing stuck objects by explosives E21B31/002)} · CPC title

• E21B33/12

  Packers; Plugs (used for cementing E21B33/134, E21B33/16) · CPC title

• E21B34/142

  unsupported or free-falling elements, e.g. balls, plugs, darts or pistons · CPC title

• E21B33/13 Primary

  Methods or devices for cementing, for plugging holes, crevices or the like · CPC title