Fracturing tool and backup

Patent metadata

Field	Value
Publication number	US-2016312555-A1
Application number	US-201514694399-A
Country	US
Kind code	A1
Filing date	Apr 23, 2015
Priority date	Apr 23, 2015
Publication date	Oct 27, 2016
Grant date	—

Abstract

A tool including a cone having a single ramp surface. A backup disposed on the ramp surface; a pusher having one or more slips. The pusher in contact with the backup and configured to force the backup along the ramp surface during use of the tool. A method for fracturing a formation through which a borehole passes.

First claim

What is claimed is:

1 . A tool comprising:
a cone having a single ramp surface; a backup disposed on the ramp surface; a pusher having one or more slips, the pusher in contact with the backup and configured to force the backup along the ramp surface during use of the tool.

2 . The tool as claimed in claim 1 wherein the ramp surface is at angle of from about 2 degrees to about 20 degrees from a longitudinal axis of the cone.

3 . The tool as claimed in claim 1 wherein the backup is configured to bridge annular and axial gaps when in use.

4 . The tool as claimed in claim 1 wherein the backup comprises a tubular body including a helical cut line that terminates prior to reaching an end face of the body.

5 . The tool as claimed in claim 4 wherein the body includes an uncut portion ranges from about 0.005 inch to about 1.00 inch.

6 . The tool as claimed in claim 1 wherein the backup comprises a polymeric material.

7 . The tool as claimed in claim 1 wherein the backup comprises a controlled electrolytic metallic material.

8 . The tool as claimed in claim 1 wherein the backup comprises a metal material.

9 . The tool as claimed in claim 1 further comprising a seal.

10 . The tool as claimed in claim 9 wherein the seal has an outside diameter that is larger than an outside diameter of the backup and the pusher.

11 . The tool as claimed in claim 10 wherein a difference in the diameter of the seal and the backup or pusher is from about 0.005 to about 0.500 inch.

12 . A backup comprising:
a tubular body; a helical cut line through the body that terminates prior to reaching an end face of the body.

13 . The backup as claimed in claim 12 wherein the body includes an uncut portion that ranges from about 0.005 inch to about 1.00 inch.

14 . The tool as claimed in claim 12 wherein the backup comprises a polymeric material.

15 . The tool as claimed in claim 12 wherein the backup comprises a controlled electrolytic metallic material.

16 . The tool as claimed in claim 12 wherein the backup comprises a metal material.

17 . A method for fracturing a formation through which a borehole passes comprising:
applying an occluding member to a tool as claimed in claim 1 , the tool having been installed in a borehole; pressuring up on the borehole against the occluding member and tool; fracturing the formation.

18 . The method as claimed in claim 17 further comprising installing the tool as claimed in claim 1 in the borehole

19 . The method as claimed in claim 17 further comprising removing the tool from the borehole.

20 . The method as claimed in claim 19 wherein the removing is by dissolving or disintegrating the tool.

Assignees

• Xu Yingqing
• Harper Jason M
• Baker Hughes Inc

Inventors

• Xu Yingqing
• Harper Jason M

Classifications

• E21B43/26

  by forming crevices or fractures · CPC title

• E21B23/01 Primary

  for anchoring the tools or the like (E21B23/02 - E21B23/06 take precedence; anchoring of drives in the borehole E21B4/18) · CPC title

• E21B33/1216

  Anti-extrusion means, e.g. means to prevent cold flow of rubber packing · CPC title

• E21B33/134

  Bridging plugs · CPC title