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US 9,752,407 B2Granted
Expandable downhole seat assembly
AssigneeSchlumberger Technology Corporation
InventorsGregoire Jacob, Michael J. Bertoja
Life of this patent
Estimating the term…
Abstract
A technique includes deploying a seat assembly having a plurality of segments into a tubing string installed in a well and expanding the seat assembly at a downhole location in the well to secure the assembly to the tubing string and form a seat that is adapted to receive an untethered object. The technique includes receiving the untethered object in the seat of the seat assembly and using the received untethered object in the seat assembly to perform a downhole operation in the well.
Claims23
A method comprising:
- deploying a seat assembly having a plurality of segments into a tubing string installed in a well wherein, a first set of the plurality of segments is arranged in a first layer and second set of the plurality of segments is arranged in a second layer longitudinally displaced from the first layer;
- expanding the seat assembly in the well to secure the seat assembly to the tubing string and form a seat adapted to receive an untethered object, wherein expanding the seat assembly comprises radially expanding at least one of the first and second sets of the plurality of segments and longitudinally compressing the first and second layers;
- receiving the untethered object in the seat of the seat assembly;
- and
- deploying the untethered object through a passageway of the tubing string to move the object through the passageway and land in the seat of the seat assembly.
2 more elements
An apparatus usable with a well, comprising:
- a plurality of segments,
- wherein the apparatus is deployable in a tubing string installed in the well, the plurality of segments are adapted to expand to form a seat in the tubing string to receive an untethered object, and the segments are adapted to radially expand and axially contract in response to contact with the untethered object.
A system comprising:
- a tubing string;
- an untethered object;
- and
- a seat assembly comprising a plurality of segmented members, wherein the segmented members are adapted to be deployed into the tubing string, be radially expanded and be axially contracted to form a seat,
- wherein:
- the untethered object is adapted to be deployed in the tubing string to travel downhole in the tubing string and land in the seat to form a seal between the untethered object and the seat;
- and
- the seat assembly is adapted to be deployed in the tubing string and travel downhole in the tubing string separately from the untethered object.
5 more elements
A method comprising:
- deploying a seat assembly having a plurality of segments into a tubing string installed in a well;
- expanding the seat assembly in the well to secure the seat assembly to the tubing string and form a seat adapted to receive an untethered object;
- receiving the untethered object in the seat of the seat assembly;
- and
- releasing at least a portion of the seat assembly as an untethered object to be caught by another seat of another seat assembly.
2 more elements
A method comprising:
- deploying a seat assembly having a plurality of segments into a tubing string installed in a well, wherein deploying the seat assembly comprises:
- running the seat assembly downhole in the tubing string on a setting tool;
- expanding the seat assembly in the well using the setting tool to secure the seat assembly to the tubing string and form a seat adapted to receive an untethered object;
- and
- releasing the expanded seat assembly from the setting tool;
- and
- receiving the untethered object in the seat of the seat assembly.
4 more elements
A method comprising:
- deploying a seat assembly having a plurality of segments into a tubing string installed in a well;
- expanding the seat assembly in the well to secure the seat assembly to the tubing string and form a seat adapted to receive an untethered object;
- after expansion of the seat assembly to form the seat, deploying the untethered object in the tubing string to travel in the tubing string and land in the seat of the seat assembly to form a seal with the seat;
- and
- releasing the seat assembly from securement to the tubing string.
2 more elements
Dependencies are inferred from the claim text.