Technique and apparatus for completing multiple zones
AssigneeSchlumberger Technology Corporation
InventorsGary Rytlewski, Ashish Sharma, Liana Mitrea
Life of this patent
Estimating the term…
Abstract
An apparatus that is usable with a well includes a string and a plurality of tools that are mounted in the string. The string includes a passageway. The tools are mounted in the string and are adapted to be placed in a state to catch objects (free-falling objects and/or pumped-down objects, as just a few examples) of substantially the same size, which are communicated downhole through the passageway.
Claims38
An apparatus usable with a well, comprising:
- a string comprising a passageway;
- and
- a plurality of tools mounted in the string and being adapted to be placed in a state to catch objects of substantially the same size communicated downhole through the passageway.
An apparatus usable with a well, comprising:
- a tubular member comprising a passageway;
- a first tool attached to the tubular member, the first tool adapted to be placed in a state to catch a first object communicated through the passageway and perform an operation after catching the first object;
- and
- a second tool attached to the tubular member and adapted to transition to a state to catch a second object communicated through the passageway in response to the operation.
A method usable with a well, comprising:
- providing a string having a plurality of tools and a passageway extending through the tools;
- and
- without running an activation tool into the passageway, selectively activating the tools of the string to cause each activated tool to transition from a first state in which the activated tool is configured to allow a free-falling object to pass through the passageway to a second state in which the activated tool is configured to catch the free-falling object.
A method usable with a well, comprising:
- dropping a first object into a passageway of a string;
- catching the first object downhole in a first tool;
- after the catching, exerting pressure in the passageway to cause the first tool to perform an operation, the operation producing a pressure change downhole;
- and
- responding to the pressure change to transition a second tool from a first state in which the second tool is configured to permit a second object communicated through the string to pass through the second tool into a second state in which the second tool is configured to catch the second object.
A system usable with a well, comprising:
- a string to be run into the well and comprising a passageway;
- and
- a valve attached to the string, the valve comprising a housing having openings to establish fluid communication between the passageway and a region outside of the string,
- wherein at least one of the openings comprises a slot having a longitudinal length at least five times greater than a width of the slot.
Dependencies are inferred from the claim text.