Casing deployed well completion systems and methods
AssigneeMousa D. Alkhalidi
InventorMousa D. Alkhalidi
Life of this patent
Estimating the term…
Abstract
A system for completing a wellbore extending through a subterranean earthen formation includes a casing string positioned in a wellbore extending through a subterranean earthen formation, a first perforating assembly coupled to the casing string, wherein the first perforating assembly includes a first perforation charge coupled to the casing string, wherein the perforation charge includes an explosive material configured to blast towards the earthen formation upon detonation of the first perforation charge, and a first sealing device coupled to the casing string, wherein the first sealing device includes a closed position configured to restrict fluid flow across the first sealing device when in the closed position.
Claims21
A system for completing a wellbore extending through a subterranean earthen formation, the system comprising:
- a casing string positioned in a wellbore extending through a subterranean earthen formation;
- and
- a first perforating assembly coupled to the casing string, wherein the first perforating assembly comprises:
- a first perforation charge coupled to the casing string, wherein the perforation charge comprises an explosive material configured to blast towards the earthen formation upon detonation of the first perforation charge;
- and
- a first sealing device coupled to the casing string, wherein the first sealing device comprises a closed position configured to restrict fluid flow across the first sealing device when in the closed position.
A method for completing a wellbore extending through a subterranean earthen formation, the method comprising:
- (a) installing a casing string and a first perforating assembly coupled to the casing string into the wellbore extending through the earthen formation;
- (b) actuating a first sealing device of the first perforating assembly from an open position to a closed position to restrict fluid flow across the first sealing device;
- and
- (c) detonating a first perforation charge of the first perforating assembly to provide fluid communication between a central passage of the casing string and the earthen formation through an opening formed by the detonated first perforation charge.
A method for completing a wellbore extending through a subterranean earthen formation, the method comprising:
- (a) actuating a first sealing device located in a string assembly positioned in the wellbore from an open configuration to a closed configuration whereby fluid flow across the first sealing device and further downhole through the string assembly is restricted;
- (b) detonating a first perforation charge uphole from the first sealing device to provide fluid communication between a central passage of the string assembly and the earthen formation through a first opening in the string assembly formed by the detonated first perforation charge;
- (c) elevating a hydraulic pressure within the central passage of the string assembly to communicate a fracturing fluid through the first opening and hydraulically fracturing the earthen formation;
- (d) actuating a second sealing device located in the string assembly uphole from the first dealing device and the first opening from an open configuration to a closed configuration whereby fluid flow across the second sealing device and further downhole through the string assembly is restricted;
- and
- (e) detonating a second perforation charge uphole from the second sealing device to provide fluid communication between the central passage of the string assembly and the earthen formation through a second opening in the string assembly formed by the detonated second perforation charge;
- and
- (f) maintaining the elevation of the hydraulic pressure within the central passage of the string assembly through steps (a) through (e) whereby the fracturing fluid is communicated through the second opening to hydraulically fracture the earthen formation.
Dependencies are inferred from the claim text.