Casing or liner barrier with remote interventionless actuation feature

Patent metadata

Field	Value
Publication number	US-9562408-B2
Application number	US-201313733671-A
Country	US
Kind code	B2
Filing date	Jan 3, 2013
Priority date	Jan 3, 2013
Publication date	Feb 7, 2017
Grant date	Feb 7, 2017

Abstract

A tubular string is run into a wellbore with a remotely actuated valve near a lower end adjacent a cementing shoe. The valve is triggered to operate without intervention such as by mud pulses generated at the surface and recognized by a sensor linked to a processor adjacent the valve to trigger the valve to close. Alternative actuation systems are envisioned for the valve that is located near the cementing shoe.

First claim

We claim:

1. A completion method for a tubular casing string delivered to a subterranean location, comprising:
running in a tubular casing string to a predetermined open hole location, said casing string having a shoe adjacent a lower end thereof;
providing a valve in said casing string adjacent said shoe;
signaling said valve from outside the open hole location or within a passage or wall of said casing string to close from a surface access location to the subterranean location;
closing said valve without intervention in said casing string when said string is cemented until before delivered cement though said casing string sets up.

2. The method of claim 1 , further comprising:
generating pulses at said surface access location.

3. The method of claim 2 , further comprising:
sensing said pulses adjacent said valve.

4. The method of claim 3 , further comprising:
operating said valve in response to interpretation of said pulses.

5. The method of claim 2 , further comprising:
using a pump and choke or bypass line to generate said pulses.

6. The method of claim 1 , further comprising:
avoiding the use of a ball or plug as said intervention.

7. The method of claim 1 , further comprising:
closing said valve with acoustic or vibration signals.

Assignees

• Wood Edward T
• Vincent Ray P
• Xu Yang
• Baker Hughes Inc

Inventors

• Wood Edward T
• Vincent Ray P
• Xu Yang

Classifications

• E21B21/10 Primary

  Valve arrangements in drilling-fluid circulation systems · CPC title

• E21B34/08 Primary

  responsive to flow or pressure of the fluid obtained (E21B34/10 takes precedence) · CPC title

• E21B33/13

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

• E21B34/16

  Control means therefor being outside the borehole {(control systems for submerged well heads E21B33/0355)} · CPC title

• E21B33/14

  for cementing casings into boreholes · CPC title