Testing, treating, or producing a multi-zone well
DCFirst Claim
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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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Abstract
An assembly having plural valves is run into a wellbore having plural zones, where each of the valves is actuatable by dropping a valve-actuating object into the corresponding valve. The valves are successively actuating, in a predetermined sequence, to an open state. The zones are successively tested after actuating corresponding valves to the open state.
178 Citations
18 Claims
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1. A method comprising:
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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. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method comprising:
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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 after actuating the given valve to the open state, closing an isolating member in each valve to isolate the valve-actuating object from a portion of a bore in the valve; and wherein closing the isolating member prevents fluid from lower zones from flowing to the corresponding zone adjacent the given valve.
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11. A system for use in a wellbore, comprising:
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a plurality of valves, each valve having a first state and a second state; a plurality of valve-actuating objects to be dropped into the wellbore to successively open corresponding valves, each valve when in the first state allowing valve-actuating objects to pass through, and each valve when in the second state catching a corresponding valve-actuating object; and a testing tool coupled to the plurality of valves to test corresponding zones of the wellbore proximal corresponding valves. - View Dependent Claims (12, 13, 14, 15, 16, 17)
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18. A method comprising:
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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, and each valve having a first state that allows the valve-actuating object to pass through, and each valve having a second state to catch a corresponding valve-actuating object; successively actuating, in a predetermined sequence, the valves to an open state; and successively testing, treating, or producing the zones after actuating corresponding valves to the open state.
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Specification