Abstract: Systems, methods, and devices can be utilized to provide charging function (CHF) fallback in a 5th Generation Core (5GC). An example method is performed by a fail-open function (FOF), and includes receiving, from the CHF, information corresponding to a subscriber of a network. The information is stored in a database. Further, the example method includes receiving, from the CHF or a connected function, a request corresponding to the subscriber. The connected function is a session management function (SMF) and/or a policy control function (PCF). Based on the request, the information stored in the database is at least one of accessed or modified. Based on performing at least one of accessing or modifying the information stored in the database, a response is generated and transmitted to the CHF or the connected function.

Abstract: An apparatus for deployment in a conduit of a tubular having an obstruction includes a fish neck connected to a deployment device configured to deploy the fish neck into the conduit of the tubular. The apparatus also includes a sand bailer connected to the fish neck. The sand bailer has a diameter larger than a diameter of the fish neck and the sand bailer is configured to obtain a sample of the obstruction by creating a suction pressure within the sand bailer. The apparatus further includes an outer sleeve movable between a first position and a second position. The first position comprises the outer sleeve concentrically disposed around the sand bailer and the second position comprises the outer sleeve concentrically disposed around the fish neck after an interaction between the outer sleeve and the obstruction. The outer sleeve comprising a plurality of panels connected to one another by a plurality of stretchable elements.

Abstract: An apparatus for deployment in a conduit of a tubular having an obstruction includes a fish neck connected to a deployment device configured to deploy the fish neck into the conduit of the tubular. The apparatus also includes a sand bailer connected to the fish neck. The sand bailer has a diameter larger than a diameter of the fish neck and the sand bailer is configured to obtain a sample of the obstruction by creating a suction pressure within the sand bailer. The apparatus further includes an outer sleeve movable between a first position and a second position. The first position comprises the outer sleeve concentrically disposed around the sand bailer and the second position comprises the outer sleeve concentrically disposed around the fish neck after an interaction between the outer sleeve and the obstruction. The outer sleeve comprising a plurality of panels connected to one another by a plurality of stretchable elements.

Abstract: A method for detecting an obstruction in a conduit of a tubular includes running a deployment device connected to a first cylindrical rod and a second cylindrical rod into the conduit of the tubular. The second cylindrical rod has a diameter larger than a diameter of the first cylindrical rod. The method further includes positioning an outer sleeve, including a plurality of stretchable elements connecting a plurality of panels to one another, in a first position, wherein the outer sleeve is disposed concentrically around the second cylindrical rod in the first position. The method further includes detecting the obstruction by shifting the outer sleeve from the first position to a second position due to an interaction between the obstruction and the outer sleeve, wherein the outer sleeve is concentrically disposed around the first cylindrical rod in the second position.

Abstract: A method for detecting an obstruction in a conduit of a tubular includes running a deployment device connected to a first cylindrical rod and a second cylindrical rod into the conduit of the tubular. The second cylindrical rod has a diameter larger than a diameter of the first cylindrical rod. The method further includes positioning an outer sleeve, including a plurality of stretchable elements connecting a plurality of panels to one another, in a first position, wherein the outer sleeve is disposed concentrically around the second cylindrical rod in the first position. The method further includes detecting the obstruction by shifting the outer sleeve from the first position to a second position due to an interaction between the obstruction and the outer sleeve, wherein the outer sleeve is concentrically disposed around the first cylindrical rod in the second position.

Abstract: An apparatus for evaluating an obstruction in a conduit of a tubular includes a first cylindrical rod connected to a deployment device configured to deploy the first cylindrical rod into the conduit of the tubular; a second cylindrical rod connected to the first cylindrical rod; an outer sleeve movable between a first position and a second position; and an impression block connected to the second cylindrical rod. The impression block is configured to obtain an impression of the obstruction. The second cylindrical rod has a diameter larger than a diameter of the first cylindrical rod, when the outer sleeve is concentrically disposed around the second cylindrical rod in the first position and concentrically disposed around the first cylindrical rod after an interaction between the outer sleeve and the obstruction. The outer sleeve includes a plurality of panels connected to one another by a plurality of stretchable elements.

Abstract: An assembly and a method for filtering a particulate from a wellbore fluid flow entering a downhole shut-in device in a wellbore are described. The downhole shut-in device includes a valve body with an inlet. An inner sleeve is coupled to an inner surface of the valve body and moves between a closed position and an open position to control a fluid flow from the wellbore through the inlet of the valve body. The downhole shut-in device includes a screen surrounding an outer surface of the valve body to filter the particulate from the fluid flow through the inlet of the valve body. Some devices also include a strainer tool with a cylindrical housing and an internal strainer. The method includes identifying a production fluid flow containing particulates of a size and quantity to be filtered from entering the downhole shut-in device.

Abstract: Systems, methods, and devices can be utilized to provide charging function (CHF) fallback in a 5th Generation Core (5GC). An example method is performed by a fail-open function (FOF), and includes receiving, from the CHF, information corresponding to a subscriber of a network. The information is stored in a database. Further, the example method includes receiving, from the CHF or a connected function, a request corresponding to the subscriber. The connected function is a session management function (SMF) and/or a policy control function (PCF). Based on the request, the information stored in the database is at least one of accessed or modified. Based on performing at least one of accessing or modifying the information stored in the database, a response is generated and transmitted to the CHF or the connected function.

Abstract: A downhole shut-in device includes a valve body with an inlet. An inner sleeve is coupled to an inner surface of the valve body and moves between a closed position and an open position to control a fluid flow from the wellbore through the inlet of the valve body. The downhole shut-in device includes a screen surrounding an outer surface of the valve body to filter the particulate from the fluid flow through the inlet of the valve body to reduce a quantity of the particulate in the inlet of the valve body below a predetermined threshold quantity. A method includes identifying a production fluid flow containing particulates of a size and quantity to be filtered from entering the downhole shut-in device.

Abstract: Systems, methods, and devices can be utilized to provide charging function (CHF) fallback in a 5th Generation Core (5GC). An example method is performed by a fail-open function (FOF), and includes receiving, from the CHF, information corresponding to a subscriber of a network. The information is stored in a database. Further, the example method includes receiving, from the CHF or a connected function, a request corresponding to the subscriber. The connected function is a session management function (SMF) and/or a policy control function (PCF). Based on the request, the information stored in the database is at least one of accessed or modified. Based on performing at least one of accessing or modifying the information stored in the database, a response is generated and transmitted to the CHF or the connected function.

Abstract: An assembly and a method for filtering a particulate from a wellbore fluid flow entering a downhole shut-in device in a wellbore are described. The downhole shut-in device includes a valve body with an inlet. An inner sleeve is coupled to an inner surface of the valve body and moves between a closed position and an open position to control a fluid flow from the wellbore through the inlet of the valve body. The downhole shut-in device includes a screen surrounding an outer surface of the valve body to filter the particulate from the fluid flow through the inlet of the valve body. Some devices also include a strainer tool with a cylindrical housing and an internal strainer. The method includes identifying a production fluid flow containing particulates of a size and quantity to be filtered from entering the downhole shut-in device.

Abstract: In wellbore abandonment operations using recycled tire rubber, a quantity of shredded rubber obtained by shredding waste tires is mixed with a quantity of a wellbore fluid to form a wellbore abandonment fluid. A first plug of cement is flowed into a wellbore to be abandoned. After the first plug of cement has set, the wellbore abandonment fluid is flowed into the wellbore such that the wellbore abandonment fluid contacts and is uphole of the first plug of cement within the wellbore. After flowing the wellbore abandonment fluid into the wellbore, a second plug of cement is flowed into the wellbore such that the second plug of cement contacts and is uphole of the wellbore abandonment fluid.

Abstract: In wellbore abandonment operations using recycled tire rubber, a quantity of shredded rubber obtained by shredding waste tires is mixed with a quantity of a wellbore fluid to form a wellbore abandonment fluid. A first plug of cement is flowed into a wellbore to be abandoned. After the first plug of cement has set, the wellbore abandonment fluid is flowed into the wellbore such that the wellbore abandonment fluid contacts and is uphole of the first plug of cement within the wellbore. After flowing the wellbore abandonment fluid into the wellbore, a second plug of cement is flowed into the wellbore such that the second plug of cement contacts and is uphole of the wellbore abandonment fluid.

Abstract: Systems, methods, and devices can be utilized to provide charging function (CHF) fallback in a 5th Generation Core (5GC). An example method is performed by a fail-open function (FOF), and includes receiving, from the CHF, information corresponding to a subscriber of a network. The information is stored in a database. Further, the example method includes receiving, from the CHF or a connected function, a request corresponding to the subscriber. The connected function is a session management function (SMF) and/or a policy control function (PCF). Based on the request, the information stored in the database is at least one of accessed or modified. Based on performing at least one of accessing or modifying the information stored in the database, a response is generated and transmitted to the CHF or the connected function.

Abstract: An assembly and a method for filtering a particulate from a wellbore fluid flow entering a downhole shut-in device in a wellbore are described. The downhole shut-in device includes a valve body with an inlet. An inner sleeve is coupled to an inner surface of the valve body and moves between a closed position and an open position to control a fluid flow from the wellbore through the inlet of the valve body. The downhole shut-in device includes a screen surrounding an outer surface of the valve body to filter the particulate from the fluid flow through the inlet of the valve body to reduce a quantity of the particulate in the inlet of the valve body below a predetermined threshold quantity. The method includes identifying a production fluid flow containing particulates of a size and quantity to be filtered from entering the downhole shut-in device.

Abstract: Techniques for allowing online charging in cases where the online charging system (OCS) is unreachable or partially unreachable are discussed herein. For example, when the OCS cannot be reached and is unable to authorize the requested services, the services can be provided (e.g., a voice communication session established between two devices) without having to wait for authorization from the OCS. Upon completion of the communication session, the OCS is contacted to report the actual number of units used during the session so that the account of the subscriber can be adjusted. In some examples, the IMS tags the CDR provided to the billing system to indicate that the OCS was not able to authorize the communication session. In this way, the billing system is notified that the OCS is to be contacted so that the subscriber's balance can be adjusted.

Abstract: A method for discovering an interface session within a wireless communication network is discussed herein. The method includes establishing an Internet Protocol (IP) packet-switched network registration between a first node of a plurality of nodes within the wireless communication network and a second node of the plurality of nodes. The method further includes, requesting, by a third node of the plurality of nodes from a fourth node of the plurality of nodes, service for a call of a mobile device within the wireless communication network. Based upon not having an appropriate interface session established between the first node and the fourth node, the method also includes performing, by the fourth node, an interface session discovery. Based at least in part on the interface session discovery, a dedicated bearer is established at the second node for the call.

Abstract: Techniques for allowing online charging in cases where the online charging system (OCS) is unreachable or partially unreachable are discussed herein. For example, when the OCS cannot be reached and is unable to authorize the requested services, the services can be provided (e.g., a voice communication session established between two devices) without having to wait for authorization from the OCS. Upon completion of the communication session, the OCS is contacted to report the actual number of units used during the session so that the account of the subscriber can be adjusted. In some examples, the IMS tags the CDR provided to the billing system to indicate that the OCS was not able to authorize the communication session. In this way, the billing system is notified that the OCS is to be contacted so that the subscriber's balance can be adjusted.

Abstract: A method for discovering an interface session within a wireless communication network is discussed herein. The method includes establishing an Internet Protocol (IP) packet-switched network registration between a first node of a plurality of nodes within the wireless communication network and a second node of the plurality of nodes. The method further includes, requesting, by a third node of the plurality of nodes from a fourth node of the plurality of nodes, service for a call of a mobile device within the wireless communication network. Based upon not having an appropriate interface session established between the first node and the fourth node, the method also includes performing, by the fourth node, an interface session discovery. Based at least in part on the interface session discovery, a dedicated bearer is established at the second node for the call.

Abstract: A plug assembly used in a wellbore fracturing process includes an annular housing that is set in the wellbore, and a ball that lands and seats in the housing. The housing and ball form a pressure barrier in the wellbore that isolates one portion of the wellbore from an adjacent portion. Pressurizing the portion of the wellbore isolated by the plug assembly generates fractures in a formation around that portion of the wellbore. The ball is not reactive with wellbore fluid or affected by wellbore conditions. Fluid communication across the plug assembly is reestablished by fracturing or milling the ball within the housing. Wellbore operations are conducted by inserting downhole tools through a bore axially formed in the housing.