Frac sleeve system and method for non-sequential downhole operations

Patent metadata

Field	Value
Publication number	US-9404340-B2
Application number	US-201414258484-A
Country	US
Kind code	B2
Filing date	Apr 22, 2014
Priority date	Nov 7, 2013
Publication date	Aug 2, 2016
Grant date	Aug 2, 2016

Abstract

A downhole communication and control system configured for use in a non-sequential order of treating a borehole, the system includes a string having at least three ports including first, second, and third longitudinally spaced ports arranged sequentially in a downhole to uphole manner in the string; at least three frac sleeve systems including first, second, and third frac sleeve systems arranged sequentially in a downhole to uphole manner in the string and arranged to open and close the first, second, and third ports, respectively, each frac sleeve system having self-powered, electronically triggered first and second sleeves; and, communication signals to trigger the first, second, and third frac sleeve systems into moving the first and second sleeves to open and close the ports. Also included is a method of completing downhole operations in a non-sequential order.

First claim

What is claimed:

1. An electronically triggered, self-powered frac sleeve system comprising:
a body having an inner collar and an outer collar;
first and second electronic triggers at least partially housed between the inner and outer collars;
first and second openings in the body openable to a first pressure;
first and second enclosed chambers having a second pressure less than that of first pressure;
first and second piston members positioned between the first and second openings and the first and second chambers, respectively; and,
first and second sleeves arranged between the inner and outer collars and slidable within the body;
wherein the first and second electronic triggers expose the first and second piston members to hydrostatic pressure via the first and second openings and movement of the first and second piston members translate to movement of the first and second sleeves operatively connected thereto.

2. The frac sleeve system of claim 1 , wherein the first and second enclosed chambers are atmospheric chambers.

3. The frac sleeve system of claim 1 , wherein the body further comprises a port, wherein the frac sleeve system is configured to block the port in a run-in condition with the first sleeve, open the port with the first sleeve in an open condition, and block the port with the second sleeve in a closed condition.

4. The frac sleeve system of claim 1 , wherein the body has a substantially constant inner diameter defined by the inner collar from an uphole to a downhole end thereof.

5. The frac sleeve system of claim 1 , wherein the second sleeve, but not the first sleeve, includes a dissolvable insert.

6. The frac sleeve system of claim 1 , wherein the first and second openings open to an interior of the inner collar.

7. The frac sleeve system of claim 1 , wherein the first and second openings open to an exterior of the outer collar.

8. The frac sleeve system of claim 1 , wherein the first and second electronic triggers are activatable from a signal received at a radially exterior location of the outer collar.

9. The frac sleeve system of claim 1 , further comprising first and second expandable rings longitudinally displaceable from the first and second openings, respectively.

10. An electronically triggered frac sleeve system comprising:
a body having a port;
first and second electronic triggers arranged within the body;
first and second openings in the body openable to a first pressure;
first and second sleeves slidable within the body to selectively open or close the port; and,
first and second piston members operatively associated with the first and second sleeves, respectively;
wherein activation of the first electronic trigger moves the first sleeve in response to the first pressure moving the first piston member, and activation of the second electronic trigger moves the second sleeve in response to the first pressure moving the second piston member.

11. The electronically triggered frac sleeve system of claim 10 , wherein the body includes an inner collar and an outer collar, the first and second sleeves arranged between the inner and outer collars, and further comprising first and second enclosed chambers between the inner and outer collars, the first and second enclosed chambers having a second pressure less than that of first pressure.

12. The electronically triggered frac sleeve system of claim 11 , wherein the first and second piston members are positioned between the first and second openings and the first and second chambers, respectively.

13. The electronically triggered frac sleeve system of claim 10 , wherein the frac sleeve system is configured to block the port in a run-in condition with the first sleeve, open the port with the first sleeve in an open condition, and subsequently block the port with the second sleeve in a closed condition.

14. The electronically triggered frac sleeve system of claim 10 , wherein the body has a substantially constant inner diameter defined by an inner collar from an uphole to a downhole end thereof.

15. The electronically triggered frac sleeve system of claim 10 , wherein the first and second openings open to an interior of the body.

16. The electronically triggered frac sleeve system of claim 10 , wherein the first and second openings open to an exterior of the body.

17. The electronically triggered frac sleeve system of claim 10 , wherein the first and second electronic triggers are activatable from a signal received at a radially exterior location of the body.

18. An electronically triggered frac sleeve system comprising:
a body having an inner collar and an outer collar;
first and second electronic triggers;
first and second openings in the body openable to a first pressure; and,
first and second sleeves arranged between the inner and outer collars and slidable within the body;
wherein the first and second electronic triggers selectively trigger exposing an area between the inner and outer collars to hydrostatic pressure via the first and second openings, the first and second sleeves movable between the inner and outer collars in response to the hydrostatic pressure, and the second sleeve, but not the first sleeve, includes a dissolvable insert.

Assignees

• Wood Edward T
• Mills Aubrey C
• Baker Hughes Inc

Inventors

• Wood Edward T
• Mills Aubrey C

Classifications

• E21B2200/06

  Sleeve valves · CPC title

• E21B43/247

  in association with fracturing processes {or crevice forming processes} · CPC title

• E21B43/14 Primary

  Obtaining from a multiple-zone well · CPC title

• E21B34/12

  operated by movement of casings or tubings · CPC title

• E21B34/066 Primary

  electrically actuated · CPC title