Fluid Plugs as Downhole Sealing Devices and Systems and Methods Including the Same

摘要

Fluid plugs as downhole sealing devices and methods include providing a stimulating fluid to a casing conduit that is defined by the production casing to stimulate a portion of a subterranean formation within which the production casing extends. The methods further may include providing a sealing fluid to the casing conduit, providing a sealing device to the casing conduit, and flowing the sealing fluid and the sealing device to a perforated section of the production casing. The methods further may include locating the sealing device on a perforation, generating a fluid plug within the perforated section of the production casing by increasing a viscosity of the sealing fluid, and retaining the sealing device proximate the perforation with the fluid plug.

主权项

1. A method of stimulating a subterranean formation, the method comprising:
providing a stimulating fluid to a casing conduit that is defined by a production casing that extends within the subterranean formation; stimulating a portion of the subterranean formation with the stimulating fluid; providing a sealing fluid to the casing conduit, wherein a composition of the sealing fluid is different from a composition of the stimulating fluid; providing a sealing device to the casing conduit; flowing the sealing fluid and the sealing device to a perforated section of the production casing; locating the sealing device on a perforation that is present within the perforated section of the production casing to at least partially seal the perforation; generating a fluid plug within the perforated section of the production casing by increasing a viscosity of the sealing fluid; and retaining the sealing device proximate the perforation with the fluid plug.