SYSTEMS AND METHODS FOR RESTRICTING FLUID FLOW IN A WELLBORE WITH AN AUTONOMOUS SEALING DEVICE AND MOTION-ARRESTING STRUCTURES

Systems and methods for restricting fluid flow in a casing conduit, including a wellbore 32 that extends within a subterranean formation 22, a casing string 42 that extends within the wellbore and defines a portion of the casing conduit, a plurality of motion-arresting structures 100 that project fr...

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Bibliographische Detailangaben
Hauptverfasser:	TOLMAN, RANDY C, ANGELES BOZA, RENZO M, MORROW, TIMOTHY I, GRUESCHOW, ERIC R, KUMARAN, KRISHNAN
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	EARTH DRILLING EARTH DRILLING, e.g. DEEP DRILLING FIXED CONSTRUCTIONS MINING OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR ASLURRY OF MINERALS FROM WELLS
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Beschreibung
Zusammenfassung:	Systems and methods for restricting fluid flow in a casing conduit, including a wellbore 32 that extends within a subterranean formation 22, a casing string 42 that extends within the wellbore and defines a portion of the casing conduit, a plurality of motion-arresting structures 100 that project from an inner surface of the casing string 42 to define a plurality of reduced-area regions of the casing conduit, and an autonomous sealing device 150 that defines a contracted configuration and an expanded configuration. The methods include conveying the autonomous sealing device 150 through the casing conduit, determining that the autonomous sealing device is located within a target portion of the casing conduit, expanding the autonomous sealing device to the expanded configuration, retaining the autonomous sealing device on a selected motion-arresting structure 100, and restricting fluid flow within the casing conduit 42 with the autonomous sealing device.