Obstruction relief in subterranean wellbores
AssigneeChevron U.S.A. Inc.
InventorsPatrick James Zimmerman, SR., Robert Sword Avent, Harold Gordon Riordan
Life of this patent
Estimating the term…
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AssigneeChevron U.S.A. Inc.
InventorsPatrick James Zimmerman, SR., Robert Sword Avent, Harold Gordon Riordan
Estimating the term…
An obstruction relief tool can include a plurality of walls that includes an inner wall, where the inner wall forms a cavity along a length of the inner wall. The obstruction relief tool can also include a chamber disposed between the plurality of walls, where the chamber has a proximal end and a distal end. The obstruction relief tool can further include an actuation device that is configured to actuate when an obstruction is within the cavity, where the actuation device, when actuated, is configured to open a first aperture in the inner wall that leads to the proximal end of the chamber, where the distal end of the chamber leads to a second aperture in the inner wall, where the first aperture is adjacent to the cavity above the obstruction, and where the second aperture in the inner wall is adjacent to the cavity below the obstruction.
An obstruction relief tool comprising:
A method for delivering a fluid to a tool below an obstruction in a cavity of a tubing string in a subterranean wellbore, the method comprising:
An assembly disposed within a subterranean wellbore, the assembly comprising:
Dependencies are inferred from the claim text.