Non-ballistic tubular perforating system and method

Patent metadata

Field	Value
Publication number	US-9605519-B2
Application number	US-201313949961-A
Country	US
Kind code	B2
Filing date	Jul 24, 2013
Priority date	Jul 24, 2013
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

A non-ballistic tubular perforating system includes a tubular having a wall with perforations therethrough and at least one radially extendable member positioned radially of the perforations configured to displace cement radially of the tubular and configured to radially extend prior to pumping of the cement.

First claim

What is claimed is:

1. A non-ballistic tubular perforating system comprising:
a tubular having a wall with perforations therethrough; and
at least one radially extendable member positioned radially of the perforations configured to displace cement radially of the tubular and configured to radially extend prior to the cement being pumped;
wherein the at least one radially extendable member is helically wrapped around the tubular.

2. The non-ballistic tubular perforating system of claim 1 , wherein
the at least one radially extendable member is extendable from a non-extended condition to an extended condition.

3. The non-ballistic tubular perforating system of claim 2 , wherein the at least one radially extendable member increases dimensionally in both radial and longitudinal directions in the extended condition as compared to the non-extended condition.

4. The non-ballistic tubular perforating system of claim 1 , wherein the non-ballistic tubular perforating system is runnable within a borehole in an earth formation, and cement is positionable within an annular space defined between the tubular and walls of the borehole.

5. The non-ballistic tubular perforating system of claim 4 , wherein the radially extending of the at least one radially extendable member causes the at least one radially extendable member to contact walls of the borehole.

6. The non-ballistic tubular perforating system of claim 1 , wherein the at least one radially extendable member is breachable by fluid pumped thereagainst through the perforations.

7. The non-ballistic tubular perforating system of claim 6 , wherein fluid pumped through the breached at least one radially extendable member can treat an earth formation through one or more of fracturing, pumping proppant and acid treating.

8. The non-ballistic tubular perforating system of claim 1 , wherein the perforations are plugged with a dissolvable material.

9. The non-ballistic tubular perforating system of claim 8 , wherein the dissolvable material is a controlled electrolytic metallic material.

10. The non-ballistic tubular perforating system of claim 1 , wherein a volume of the at least one radially extending member does not increase during radial extension thereof.

11. The non-ballistic tubular perforating system of claim 1 , further comprising:
at least one occluding member configured to initially prevent fluid inside the tubular from reaching the at least one radially extendable member.

12. The non-ballistic tubular perforating system of claim 11 wherein the at least one occluding member is a degradable plug.

13. The non-ballistic tubular perforating system of claim 1 , wherein
the at least one radially extendable member includes one of a swellable material, an inflatable member, and a shape memory material.

14. The non-ballistic tubular perforating system of claim 1 , wherein the at least one radially extendable member is configured to radially extend after cement is positioned within the annular space but before the cement hardens.

15. The non-ballistic tubular perforating system of claim 14 , wherein the radially extending of the at least one radially extendable member causes additional displacement of cement in the annular space.

16. The non-ballistic tubular perforating system of claim 1 , wherein the at least one radially extendable member includes one of a swellable material and a shape memory material.

17. A method of opening perforations in a tubular system comprising:
cementing an annular space between a tubular and a borehole in an earth formation;
radially increasing at least one radially extendable member positioned radially outwardly of perforations in the tubular, the at least one radially extendable member including one of a swellable material, an inflatable member, and a shape memory material, the at least one radially extendable member helically wrapped around the tubular;
pumping fluid through the tubular; and
breaching the at least one radially extendable member and establishing fluidic communication between an inside of the tubular and the earth formation.

18. The method of opening perforations in a tubular system of claim 17 , wherein the radially extending of the at least one radially extendable member occurs after the cementing but before the cement has hardened.

19. The method of opening perforations in a tubular system of claim 17 , further comprising contacting walls of the borehole with the at least one radially extendable member after the at least one radially extendable member has radially extended.

20. The method of opening perforations in a tubular system of claim 17 , further comprising plugging the perforations with plugs made of a degradable material.

21. The method of opening perforations in a tubular system of claim 20 , further comprising dissolving the plugs and exposing the at least one radially extendable member to fluid pumped through the tubular via the perforations.

22. The method of opening perforations in a tubular system of claim 17 , further comprising initially occluding fluid communication between an inside of the tubular and the at least one radially extendable member.

23. The method of opening perforations in a tubular system of claim 22 , further comprising establishing fluid communication between an inside of the tubular and the at least one radially extendable member.

24. The method of claim 17 , wherein radially increasing the at least one radially extendable member occurs before the cementing.

Assignees

• Richard Bennett M
• O'Malley Edward J
• Baker Hughes Inc

Inventors

• Richard Bennett M
• O'Malley Edward J

Classifications

• E21B43/114 Primary

  Perforators using direct fluid action {on the wall to be perforated}, e.g. abrasive jets · CPC title

• E21B43/112

  Perforators with extendable perforating members, e.g. actuated by fluid means · CPC title