Borehole data transmission method for flowed back borehole plugs with a lower slip assembly or object landed on said plugs

Patent metadata

Field	Value
Publication number	US-10352121-B2
Application number	US-201715635636-A
Country	US
Kind code	B2
Filing date	Jun 28, 2017
Priority date	May 31, 2016
Publication date	Jul 16, 2019
Grant date	Jul 16, 2019

Abstract

A borehole plug or packer for treating is designed to be flowed back to a surface location after use. When the treatment is concluded pressure from above is relieved or lowered, and well fluid is flowed back, so that the plug or plugs disengages at slips designed to resist differential pressure from above. The application of differential pressure from below causes the lower slips to release one or more of such plugs in the hole into specialized sub surface or surface capture equipment so that well pressure is relieved before removal of the plugs from specialized subsurface or surface capture equipment. Sensors to obtain and store data can be incorporated into the plugs or into objects landed on the plugs so that when brought to the surface the data can be processed and used in aid of production.

First claim

We claim:

1. A method of collecting borehole data stored in at least one packer or plug assembly to a surface location, comprising:
collecting borehole data during a borehole treatment against said at least one packer or plug assembly, when set, with at least one sensor located thereon;
creating a differential pressure on said at least one packer or plug assembly in an uphole direction toward the surface;
bringing said at least one sensor toward a surface location with at least a portion of said at least one packer or plug assembly under impetus of the differential pressure.

2. The method of claim 1 , comprising:
bringing the entire at least one packer or plug assembly toward the surface.

3. The method of claim 2 , comprising:
providing a body on said at least one packer or plug assembly.

4. The method of claim 1 , comprising:
bringing at least a portion of at least one packer or plug assembly with said sensor toward the surface.

5. The method of claim 4 , comprising:
locating said at least one sensor on an object removably mounted to a body of said at least one packer or plug assembly.

6. The method of claim 5 , comprising:
providing a seat on said body around a passage therethrough to accept said object for closing said passage.

7. The method of claim 1 , comprising:
providing a plurality of packer or plug assemblies as said at least one packer or plug assembly;
installing a first said packer or plug assembly for a treatment at a first location and removing said first packer or plug assembly at least in part with said at least one sensor before inserting a second packer or plug assembly for a treatment at a second location.

8. The method of claim 7 , comprising:
locating a sensor in a body of said first packer or plug assembly and removing the entirety of said first packer or plug assembly with said sensor before inserting said second packer or plug assembly.

9. The method of claim 7 , comprising:
locating said sensor on an object removably mounted to a body of said first packer or plug assembly;
removing said object with said sensor while leaving said body of said first packer or plug assembly in place before inserting said second packer or plug assembly.

10. The method of claim 1 , comprising:
providing a plurality of packer or plug assemblies as said at least one packer or plug assembly;
bringing all said packer or plug assemblies toward the surface with respective said at least one sensor mounted thereon at the same time.

11. The method of claim 10 , comprising:
locating said at least one sensor in a body of said packer or plug assemblies.

12. The method of claim 10 , comprising:
locating said at least one sensor in objects landed on respective seats surrounding a passage through said packer or plug assemblies.

13. The method of claim 1 , comprising:
overcoming grip of a retainer on said at least one packer or plug assembly with flowing well fluids back and/or reducing pressure near the surface.

14. The method of claim 1 , comprising:
overcoming a retaining force by a sealing element on said at least one packer or plug assembly after overcoming a grip of at least one slip with pressure differential in a direction toward the surface.

15. The method of claim 14 , comprising:
locating a slip only downhole from a sealing element on said at least one packer or plug assembly.

16. The method of claim 15 , comprising:
locking said slip when said sealing element is in a set position.

17. The method of claim 16 , comprising:
retaining said slip locked during said capturing.

18. The method of claim 17 , comprising:
providing a wedge between said slip and a body of said at least one pacekr of plug assembly to lock said slip from moving relatively to said mandrel in a downhole direction.

19. The method of claim 17 , comprising:
providing a wedge between said slip and a body of said at least one packer or plug assembly to lock said slip in a set position;
providing at least one rib on said wedge oriented toward the surface to prevent said slip from moving relatively to said mandrel in an uphole direction.

Assignees

• Baker Hughes A Ge Co Llc

Inventors

• Wise Tristan R
• Silva Zachary S
• Pena Elias
• Gonzalez Hector O

Classifications

• E21B33/1295

  actuated by fluid pressure · CPC title

• E21B33/12

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

• E21B23/08 Primary

  Introducing or running tools by fluid pressure, e.g. through-the-flow-line tool systems · CPC title

• E21B33/1292

  with means for anchoring against downward and upward movement · CPC title

• E21B33/124

  Units with longitudinally-spaced plugs for isolating the intermediate space · CPC title