Apparatuses and methods for enabling multistage hydraulic fracturing

A plurality of injection stations configured for integration within a wellbore string comprising:

• a first set of injection stations, wherein each one of the first set of injection stations includes:
• a housing;
• a port extending through the housing;
• a flow control member configured for displacement for effecting at least opening of the port such that, when the injection station is integrated within a wellbore string that is disposed within a wellbore of a subterranean formation, and treatment fluid is being supplied through a wellbore string passage of the wellbore string, injection of the supplied treatment fluid into the subterranean formation is effected through the port;
• and
• a deployable seat, mounted to the housing, and including an aperture, and configured such that, when the seat is deployed in a deployed position, the first seat is configured for receiving a respective plug for seating of the respective plug over the aperture of the seat;
• such that a plurality of plugs are respective to the injection stations, wherein each one of the plugs is respective to a deployable seat of a one of the injection stations, such that each one of the plugs is respective to a one of the injection stations;
• wherein:
• the injection stations are integratable into a wellbore string such that the wellbore string includes a plurality of longitudinally spaced apart injection stations;
• the longitudinally spaced apart injection stations include one or more uphole injection stations, wherein each one of the one or more uphole injection stations is a one of the one or more injection stations of the longitudinally spaced apart injection stations that is other than the injection station of the longitudinally spaced apart injection stations that is disposed furthest downhole relative to all of the other ones of the longitudinally spaced apart injection stations;
• for each one of the one or more uphole injection stations, independently:
• one or more injection stations are disposed downhole relative to the uphole injection station to define one or more downhole-disposed injection stations, wherein each one of the plugs that is respective to a one of the one or more downhole-disposed injection stations is a downhole-deployable plug;
• the longitudinally spaced apart injection stations are positionable in a sequence such that for each one of the one or more uphole injection stations, independently:
• the aperture of the seat of the uphole injection station is co-operable with each one of the one or more downhole-deployable plugs that are respective to the one or more downhole-disposed injection stations that are disposed downhole relative to the uphole injection station, independently, such that, when the wellbore string includes the longitudinally spaced apart injection stations, and when the wellbore string is disposed within a wellbore, and when the seat of the uphole injection station is deployed, for each one of the one or more downhole-deployable plugs that are respective to the one or more downhole-disposed injection stations that are disposed downhole relative to the uphole injection station, independently:
• when a seat, of the downhole-disposed injection station to which the downhole-deployable plugs is respective, is deployed, and when the downhole-deployable plug is being conducted downhole through the wellbore string passage, the downhole-deployable plug passes through the aperture of the deployed seat of the uphole injection station and is conducted downhole for seating on the deployed seat of the downhole-disposed injection station to which the downhole-deployable plug is respective;
• and
• a second set of injection stations, wherein each one of the second set of injection stations includes:
• a housing;
• a port extending through the housing;
• a flow control member configured for displacement for effecting at least opening of the port such that, when the injection station is integrated within a wellbore string that is disposed within a wellbore of a subterranean formation, and treatment fluid is being supplied through a wellbore string passage of the wellbore string, injection of the supplied treatment fluid into the subterranean formation is effected through the port;
• and
• a deployable seat, mounted to the housing, and including an aperture, and configured such that, when the seat is deployed in a deployed position, the seat is configured for receiving a respective plug for seating of the respective plug over the aperture of the seat;
• such that a plurality of plugs are respective to the injection stations, wherein each one of the plugs is respective to a deployable seat of a one of the injection stations, such that each one of the plugs is respective to a one of the injection stations;
• wherein:
• the injection stations are integratable into a wellbore string such that the wellbore string includes a plurality of longitudinally spaced apart injection stations;
• the longitudinally spaced apart injection stations include one or more uphole injection stations, wherein each one of the one or more uphole injection stations is a one of the one or more injection stations of the longitudinally spaced apart injection stations that is other than the injection station of the longitudinally spaced apart injection stations that is disposed furthest downhole relative to all of the other ones of the longitudinally spaced apart injection stations;
• for each one of the one or more uphole injection stations, independently:
• one or more injection stations are disposed downhole relative to the uphole injection station to define one or more downhole-disposed injection stations, wherein each one of the plugs that is respective to a one of the one or more downhole-disposed injection stations is a downhole-deployable plug;
• the longitudinally spaced apart injection stations are positionable in a sequence such that for each one of the one or more uphole injection stations, independently:
• the aperture of the seat of the uphole injection station is co-operable with each one of the one or more downhole-deployable plugs that are respective to the one or more downhole-disposed injection stations that are disposed downhole relative to the uphole injection station, independently, such that, when the wellbore string includes the longitudinally spaced apart injection stations, and when the wellbore string is disposed within a wellbore, and when the seat of the uphole injection station is deployed, for each one of the one or more downhole-deployable plugs that are respective to the one or more downhole-disposed injection stations that are disposed downhole relative to the uphole injection station, independently:
• when a seat, of the downhole-disposed injection station to which the downhole-deployable plugs is respective, is deployed, and when the downhole-deployable plug is being conducted downhole through the wellbore string passage, the downhole-deployable plug passes through the aperture of the deployed seat of the uphole injection station and is conducted downhole for seating on the deployed seat of the downhole-disposed injection station to which the downhole-deployable plug is respective.

First and second sets of injection system kits comprising:

• a first set of injection system kits, wherein the first set of injection system kits includes a plurality of injection system kits, wherein each one of the injection system kits, independently, includes:
• a plug;
• and
• an injection station including:
• a housing;
• a port extending through the housing;
• a flow control member configured for displacement for effecting at least opening of the port such that, when the injection station is integrated within a wellbore string that is disposed within a wellbore of a subterranean formation, and treatment fluid is being supplied through a wellbore string passage of the wellbore string, injection of the supplied treatment fluid into the subterranean formation is effected through the port;
• and
• a deployable seat, mounted to the housing, and including an aperture, and configured such that, when the seat is deployed in a deployed position, the seat is configured for receiving the plug for seating of the plug over the aperture of the seat;
• wherein the plug is respective to the injection station;
• such that a plurality of plugs are respective to a plurality of injection stations, wherein each one of the plugs is respective to a deployable seat of a one of the injection stations, such that each one of the plugs is respective to a one of the injection stations;
• wherein:
• the injection stations are integratable into a wellbore string such that the wellbore string includes a plurality of longitudinally spaced apart injection stations;
• the longitudinally spaced apart injection stations include one or more uphole injection stations, wherein each one of the one or more uphole injection stations is a one of the one or more injection stations of the longitudinally spaced apart injection stations that is other than the injection station of the longitudinally spaced apart injection stations that is disposed furthest downhole relative to all of the other ones of the longitudinally spaced apart injection stations;
• for each one of the one or more uphole injection stations, independently:
• one or more injection stations are disposed downhole relative to the uphole injection station to define one or more downhole-disposed injection stations, wherein each one of the plugs that is respective to a one of the one or more downhole-disposed injection stations is a downhole-deployable plug;
• the longitudinally spaced apart injection stations are positionable in a sequence such that for each one of the one or more uphole injection stations, independently:
• the aperture of the seat of the uphole injection station is co-operable with each one of the one or more downhole-deployable plugs that are respective to the one or more downhole-disposed injection stations that are disposed downhole relative to the uphole injection station, independently, such that, when the wellbore string includes the longitudinally spaced apart injection stations, and when the wellbore string is disposed within a wellbore, and when the seat of the uphole injection station is deployed, for each one of the one or more downhole-deployable plugs that are respective to the one or more downhole-disposed injection stations that are disposed downhole relative to the uphole injection station, independently:
• when a seat, of the downhole-disposed injection station to which the downhole-deployable plugs is respective, is deployed, and when the downhole-deployable plug is being conducted downhole through the wellbore string passage, the downhole-deployable plug passes through the aperture of the deployed seat of the uphole injection station and is conducted downhole for seating on the deployed seat of the downhole-disposed injection station to which the downhole-deployable plug is respective;
• and
• a second set of injection system kits, wherein the second set of injection system kits includes a plurality of injection system kits, wherein each one of the injection system kits, independently, includes:
• a plug;
• and
• an injection station including:
• a housing;
• a port extending through the housing;
• a flow control member configured for displacement for effecting at least opening of the port such that, when the injection station is integrated within a wellbore string that is disposed within a wellbore of a subterranean formation, and treatment fluid is being supplied through a wellbore string passage of the wellbore string, injection of the supplied treatment fluid into the subterranean formation is effected through the port;
• and
• a deployable seat, mounted to the housing, and including an aperture, and configured such that, when the seat is deployed in a deployed position, the seat is configured for receiving the plug for seating of the plug over the aperture of the seat;
• wherein the plug is respective to the injection station;
• such that a plurality of plugs are respective to a plurality of injection stations, wherein each one of the plugs is respective to a deployable seat of a one of the injection stations, such that each one of the plugs is respective to a one of the injection stations;
• wherein:
• the injection stations are integratable into a wellbore string such that the wellbore string includes a plurality of longitudinally spaced apart injection stations;
• the longitudinally spaced apart injection stations include one or more uphole injection stations, wherein each one of the one or more uphole injection stations is a one of the one or more injection stations of the longitudinally spaced apart injection stations that is other than the injection station of the longitudinally spaced apart injection stations that is disposed furthest downhole relative to all of the other ones of the longitudinally spaced apart injection stations;
• for each one of the one or more uphole injection stations, independently:
• one or more injection stations are disposed downhole relative to the uphole injection station to define one or more downhole-disposed injection stations, wherein each one of the plugs that is respective to a one of the one or more downhole-disposed injection stations is a downhole-deployable plug;
• the longitudinally spaced apart injection stations are positionable in a sequence such that for each one of the one or more uphole injection stations, independently:
• the aperture of the seat of the uphole injection station is co-operable with each one of the one or more downhole-deployable plugs that are respective to the one or more downhole-disposed injection stations that are disposed downhole relative to the uphole injection station, independently, such that, when the wellbore string includes the longitudinally spaced apart injection stations, and when the wellbore string is disposed within a wellbore, and when the seat of the uphole injection station is deployed, for each one of the one or more downhole-deployable plugs that are respective to the one or more downhole-disposed injection stations that are disposed downhole relative to the uphole injection station, independently:
• when a seat, of the downhole-disposed injection station to which the downhole-deployable plugs is respective, is deployed, and when the downhole-deployable plug is being conducted downhole through the wellbore string passage, the downhole-deployable plug passes through the aperture of the deployed seat of the uphole injection station and is conducted downhole for seating on the deployed seat of the downhole-disposed injection station to which the downhole-deployable plug is respective.