Testing, treating, or producing a multi-zone well

  • US 7,377,321 B2
  • Filed: 01/13/2006
  • Issued: 05/27/2008
  • Est. Priority Date: 12/14/2004
  • Status: Active Grant
First Claim
Patent Images

1. A method comprising:

  • running an assembly having plural valves into a wellbore having plural zones, each of the valves actuatable by dropping a valve-actuating object into the corresponding valve;

    successively actuating, in a predetermined sequence, the valves to an open state; and

    successively testing the zones after actuating corresponding valves to the open state,wherein actuating each given valve to the open state comprises;

    dropping a corresponding valve-actuating object into the given valve;

    catching the valve-actuating object in the given valve;

    applying pressure against the valve-actuating object to move a member in the given valve to expose one or more openings of the given valve to enable fluid flow between an inner bore of the given valve and a region outside the given valve; and

    actuating the given valve from a first state to a second state, wherein the given valve when in the first state allows the valve-actuating object to pass through the given valve, and wherein the given valve when in the second state allows the valve-actuating object to be caught by the given valve.

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