Abstract: A casing exit joint with guiding profiles and methods for use are provided. In one embodiment, a casing exit joint comprises: a substantially tubular casing joint comprising an inner surface and an outer surface, wherein at least a circumferential portion of the inner surface comprises a plurality of axial inner grooves. In certain embodiments, at least a circumferential portion of the outer surface may comprise a plurality of axial outer grooves. The casing exit joint may be disposed in a wellbore penetrating at least a portion of a subterranean formation, and a cutting tool may cut a window through at least a portion of the casing exit joint. In certain embodiments, the axial inner grooves and/or outer grooves may reduce the amount of milling debris, prevent lateral displacement of the cutting tool, and/or eliminate the need to pre-orient the casing exit joint to achieve the desired exit window.

Abstract: An example multi-bore junction assembly includes a connector body having an upper end and a lower end, the lower end providing a main bore leg receptacle and a lateral bore leg receptacle. A main bore leg is coupled to the main bore leg receptacle and extending longitudinally therefrom, and a lateral bore leg coupled to the lateral bore leg receptacle and extending longitudinally therefrom, wherein the main and lateral bore legs are round, tubular structures. At least one mechanical stiffener extends longitudinally between the connector body and a D-round connector arranged on one of the main and lateral bore legs.

Abstract: An example multi-bore junction assembly includes a connector body having an upper end and a lower end, the lower end providing a main bore leg receptacle and a lateral bore leg receptacle, a main bore leg coupled to the main bore leg receptacle and extending longitudinally therefrom, a lateral bore leg coupled to the lateral bore leg receptacle and extending longitudinally therefrom, wherein the main and lateral bore legs are round, tubular structures, and a first mechanical stiffener arranged on the main bore leg and a second mechanical stiffener arranged on the lateral bore leg, wherein the first and second mechanical stiffeners each exhibit a generally D-shaped cross-section.

Abstract: An orienting tool for use in wells can include a flow control device which controls flow between an interior and an exterior of a body of the tool to thereby transmit a signal indicative of an orientation of the body, the flow control device being outwardly extendable relative to the body. A method of orienting a structure in a well can include transmitting at least one signal from an orienting tool, the signal being indicative of an orientation of the orienting tool, and displacing a housing of the tool outward relative to a generally tubular body of the tool. A well system can include an orienting tool connected to a structure and positioned in a wellbore, the tool including a housing which is outwardly extendable relative to a generally tubular body, the tool being configured to transmit at least one signal indicative of an orientation of the structure.

Abstract: A wellbore isolation system is disclosed. The wellbore isolation system includes a junction positioned at an intersection of a first wellbore and a second wellbore, and a deflector disposed in the junction such that a path into the first leg of the junction is obstructed and engaged with the first leg of the junction to form a fluid and pressure tight seal. The junction includes a first leg extending downhole into the first wellbore, and a second leg extending downhole into the second wellbore. The deflector includes a channel extending axially through the deflector, and a degradable plug disposed in the channel and engaged with the channel to prevent fluid flow through the channel.

Abstract: A wellbore isolation system is disclosed. The wellbore isolation system includes a junction positioned at an intersection of a first wellbore and a second wellbore, and a deflector disposed in the junction such that a path into the first leg of the junction is obstructed and engaged with the first leg of the junction to form a fluid and pressure tight seal. The junction includes a first leg extending downhole into the first wellbore, and a second leg extending downhole into the second wellbore.

Abstract: An orienting tool for use in wells can include a flow control device which controls flow between an interior and an exterior of a body of the tool to thereby transmit a signal indicative of an orientation of the body, the flow control device being outwardly extendable relative to the body. A method of orienting a structure in a well can include transmitting at least one signal from an orienting tool, the signal being indicative of an orientation of the orienting tool, and displacing a housing of the tool outward relative to a generally tubular body of the tool. A well system can include an orienting tool connected to a structure and positioned in a wellbore, the tool including a housing which is outwardly extendable relative to a generally tubular body, the tool being configured to transmit at least one signal indicative of an orientation of the structure.

Abstract: An example multi-bore junction assembly includes a connector body having an upper end and a lower end, the lower end providing a main bore leg receptacle and a lateral bore leg receptacle, a main bore leg coupled to the main bore leg receptacle and extending longitudinally therefrom, a lateral bore leg coupled to the lateral bore leg receptacle and extending longitudinally therefrom, wherein the main and lateral bore legs are round, tubular structures, and a first mechanical stiffener arranged on the main bore leg and a second mechanical stiffener arranged on the lateral bore leg, wherein the first and second mechanical stiffeners each exhibit a generally D-shaped cross-section.

Abstract: An example multi-bore junction assembly includes a connector body having an upper end and a lower end, the lower end providing a main bore leg receptacle and a lateral bore leg receptacle. A main bore leg is coupled to the main bore leg receptacle and extending longitudinally therefrom, and a lateral bore leg coupled to the lateral bore leg receptacle and extending longitudinally therefrom, wherein the main and lateral bore legs are round, tubular structures. At least one mechanical stiffener extends longitudinally between the connector body and a D-round connector arranged on one of the main and lateral bore legs.

Abstract: A system for opening a window (320) in lateral wellbore construction. The system includes a window joint (300) that is operable to be interconnected within a casing string. The window joint (300) has a window (304) formed therein that is defined by at least one score line (306) that creates a preferentially weaken region within the window joint (300) enabling internal removal of the window (304) in a predictable manner without generating wellbore debris. A window removal tool (310) is operable to be run in the casing string. The window removal tool (310) is operably engagable with the window (304) such that actuation of the window removal tool (310) internally removes the window (304) from the window joint (300), thereby opening the window (320).

Abstract: A system for opening a window (320) in lateral wellbore construction. The system includes a window joint (300) that is operable to be interconnected within a casing string. The window joint (300) has a window (304) formed therein that is defined by at least one score line (306) that creates a preferentially weaken region within the window joint (300) enabling internal removal of the window (304) in a predictable manner without generating wellbore debris. A window removal tool (310) is operable to be run in the casing string. The window removal tool (310) is operably engagable with the window (304) such that actuation of the window removal tool (310) internally removes the window (304) from the window joint (300), thereby opening the window (320).

Abstract: An orienting tool for use in wells can include a flow control device which controls flow between an interior and an exterior of a body of the tool to thereby transmit a signal indicative of an orientation of the body, the flow control device being outwardly extendable relative to the body. A method of orienting a structure in a well can include transmitting at least one signal from an orienting tool, the signal being indicative of an orientation of the orienting tool, and displacing a housing of the tool outward relative to a generally tubular body of the tool. A well system can include an orienting tool connected to a structure and positioned in a wellbore, the tool including a housing which is outwardly extendable relative to a generally tubular body, the tool being configured to transmit at least one signal indicative of an orientation of the structure.

Abstract: Assemblies that can be disposed in a subterranean bore. An assembly can include a body with an opening in a wall of the body. A sleeve can be disposed exterior to the body at the opening. The sleeve can be made from material such as carbon fiber that can withstand at least some pressures and forces present in the subterranean environment and reduce a diameter of the body and sleeve. The assembly may also include an inner sleeve and/or an inner string that can isolate the sleeve from certain pressures and forces.

Abstract: A system for opening a window (320) in lateral wellbore construction. The system includes a window joint (300) that is operable to be interconnected within a casing string. The window joint (300) has a window (304) formed therein that is defined by at least one score line (306) that creates a preferentially weaken region within the window joint (300) enabling internal removal of the window (304) in a predictable manner without generating wellbore debris. A window removal tool (310) is operable to be run in the casing string. The window removal tool (310) is operably engagable with the window (304) such that actuation of the window removal tool (310) internally removes the window (304) from the window joint (300), thereby opening the window (320).

Abstract: An apparatus (100) for depth referencing tubular strings in a wellbore. The apparatus (100) includes a depth reference coupling (102) having a profile (112) that is positioned in a first tubular string. The first tubular string has a predetermined length between the depth reference coupling (102) and a predetermined reference point. The apparatus (100) also includes an indicator assembly (118) having a mating profile (128) operable to engage the profile (112) of the depth reference coupling (102) that is positioned in a second tubular string. In operation, the second tubular string is run in the first tubular string until the mating profile (128) of the indicator assembly (118) engages the profile (112) of the depth reference coupling (102), thereby enabling reliable depth referencing of the tubular strings.

Abstract: Casing or work string orientation indicating apparatus and methods. A system for indicating orientation of a structure in a wellbore includes an orientation indicating device responsive to fluid flow through the device, whereby fluid flow through the device at a selected flow rate produces a reduced pressure differential across the device when the device is at a preselected azimuthal orientation, compared to an increased pressure differential across the device produced by fluid flow through the device at the selected flow rate when the device is not at the azimuthal orientation. A method of detecting orientation of a structure in a wellbore includes the steps of: flowing fluid at a selected flow rate through an orientation indicating device interconnected to the structure; and observing a substantially constant pressure differential across the device during the flowing step, thereby indicating that the structure is at a predetermined azimuthal orientation.

Abstract: Assemblies that can be disposed in a subterranean bore are described. An assembly can include a body with an opening in a wall of the body. A sleeve can be disposed exterior to the body at the opening. The sleeve can be made from material such as carbon fiber that can withstand at least some pressures and forces present in the subterranean environment and reduce a diameter of the body and sleeve. The assembly may also include an inner sleeve and/or an inner string that can isolate the sleeve from certain pressures and forces.

Abstract: A method for discovering network devices having special IP addresses may include collecting a plurality of IP addresses, where each IP address corresponds to a network device. One or more IP addresses may be identified as a predetermined IP address and/or a predetermined address type. Each of the IP addresses may then be classified according to various IP address types. A network address topology may be built based on the IP addresses, the network devices, and the IP address types. Finally, a special network topology may be built that includes network devices having IP addresses identified as the predetermined IP address and/or the predetermined IP address type.

Abstract: A sealed branch wellbore transition joint. A method of completing a well having intersecting wellbores includes the steps of: positioning a diverter in a wellbore; diverting an assembly from the wellbore into another wellbore; and swelling a sealing material on the assembly, so that a seal is formed between the assembly and the diverter. A completion system for a well having intersecting wellbores includes a diverter positioned in a wellbore, an assembly extending laterally across the wellbore, and a sealing material on the assembly. The sealing material is swollen so that a seal is formed between the assembly and the diverter.

Abstract: Casing or work string orientation indicating apparatus and methods. A system for indicating orientation of a structure in a wellbore includes an orientation indicating device responsive to fluid flow through the device, whereby fluid flow through the device at a selected flow rate produces a reduced pressure differential across the device when the device is at a preselected azimuthal orientation, compared to an increased pressure differential across the device produced by fluid flow through the device at the selected flow rate when the device is not at the azimuthal orientation. A method of detecting orientation of a structure in a wellbore includes the steps of: flowing fluid at a selected flow rate through an orientation indicating device interconnected to the structure; and observing a substantially constant pressure differential across the device during the flowing step, thereby indicating that the structure is at a predetermined azimuthal orientation.