Abstract: Provided herein are exemplary systems and methods for an architecture for converged industrial control and real time applications, the architecture comprising a physical network port, a switching module, an embedded ARM core, a network interface controller, and a multi-core computing module. According to further exemplary embodiments, the physical network port is an ethernet port capable of supporting a real-time field bus. The switching module may be configured to support a multiport ethernet switch. The switching module may also be configured to enable a backplane mesh to interconnect multiple foglets. Additionally, the embedded ARM core may be within the switching module, and the embedded ARM core may be configured to support virtualization.

Abstract: Adaptive scheduling of compute functions in a fog network is described herein. An example method includes synchronizing kernel and hypervisor scheduling of applications used to control one or more edge devices using a global schedule, wherein the global schedule comprises timeslots for applications, and adapting the timeslots in real-time or near real-time based on application-based time related feedback that is indicative of time delays.

Abstract: According to some exemplary embodiments, the present disclosure is directed to a secure edge datastream processing and distribution system comprising a trusted datastream with metadata indicating ownership and access rights added at an edge. Further embodiments include sensors, machines or robots sending sensor data attributes to a fog operating system data pipeline, the fog operating system data pipeline sending dynamic data tags to secure containers and/or the fog operating system data pipeline sending role and org assignment data to secure containers. The secure containers may send correlated edge analytics to an authorization policy engine, and/or the secure containers may send datastream identification definition data to an authorization policy engine.

Abstract: Disclosed herein are enhancements for operating an input/output (I/O) management cluster with end I/O devices. In one implementation, a method of operating an I/O cluster includes, in a first I/O management node of the I/O management cluster, executing a first application to manage data for an I/O device communicatively coupled via at least one switch to the first I/O management node. The method further provides identifying a failure in the first I/O management node related to processing the data for the I/O device and, in response to the failure, configuring the at least one switch to communicate the data for the I/O device with a second I/O management node of the I/O management cluster. The method also includes, in the second I/O management node and after configuring the at least one switch, executing a second application to manage the data for the I/O device.

Abstract: According to some exemplary embodiments, the present disclosure is directed to a secure edge datastream processing and distribution system comprising a trusted datastream with metadata indicating ownership and access rights added at an edge. Further embodiments include sensors, machines or robots sending sensor data attributes to a fog operating system data pipeline, the fog operating system data pipeline sending dynamic data tags to secure containers and/or the fog operating system data pipeline sending role and org assignment data to secure containers. The secure containers may send correlated edge analytics to an authorization policy engine, and/or the secure containers may send datastream identification definition data to an authorization policy engine.

Abstract: Provided herein are exemplary systems and methods for a fog computing facilitated flexible factory including establishing a physical production process as part of a work cell, establishing a sensing process as part of the work cell for the physical production process, establishing a monitoring process for the sensing process and the physical production process, establishing a managing process for the monitoring process, the sensing process and the physical production process, establishing a planning process for the managing process, the monitoring process, the sensing process and the physical production process, and establishing a fog node as part of the work cell for all of the processes.

Abstract: Adaptive scheduling of compute functions in a fog network is described herein. An example method includes synchronizing kernel and hypervisor scheduling of applications used to control one or more edge devices using a global schedule, wherein the global schedule comprises timeslots for applications, and adapting the timeslots in real-time or near real-time based on application-based time related feedback that is indicative of time delays.

Abstract: An access device installs on a wellscreen joint during manufacture and allows access to one or more spaces or layers where tracer elements can be installed adjacent the joint's screen jacket (i.e., internal and/or external to the screen jacket). Portion of the access device is removable to allow installation of the tracer elements after the joint has been manufactured. With the tracer elements installed, the access device can be reassembled and locked in place. Any various mechanism can allow the access device to be partially removed, the tracer elements to be installed, and the access device to be reassembled in place. For example, an end ring holding the jacket on the basepipe can have at least one channel communicating with a space or layer for insertion of the tracer elements. A removable cover can be removed to allow access to the at least one channel and can be reattached for the wellscreen to be used downhole.

Abstract: Provided herein are exemplary systems and methods for an architecture for converged industrial control and real time applications, the architecture comprising a physical network port, a switching module, an embedded ARM core, a network interface controller, and a multi-core computing module. According to further exemplary embodiments, the physical network port is an ethernet port capable of supporting a real-time field bus. The switching module may be configured to support a multiport ethernet switch. The switching module may also be configured to enable a backplane mesh to interconnect multiple foglets. Additionally, the embedded ARM core may be within the switching module, and the embedded ARM core may be configured to support virtualization.

Abstract: A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position.

Abstract: Disclosed herein are enhancements for operating an input/output (I/O) management cluster with end I/O devices. In one implementation, a method of operating an I/O cluster includes, in a first I/O management node of the I/O management cluster, executing a first application to manage data for an I/O device communicatively coupled via at least one switch to the first I/O management node. The method further provides identifying a failure in the first I/O management node related to processing the data for the I/O device and, in response to the failure, configuring the at least one switch to communicate the data for the I/O device with a second I/O management node of the I/O management cluster. The method also includes, in the second I/O management node and after configuring the at least one switch, executing a second application to manage the data for the I/O device.

Abstract: Provided herein are exemplary systems and methods for a fog computing facilitated flexible factory including establishing a physical production process as part of a work cell, establishing a sensing process as part of the work cell for the physical production process, establishing a monitoring process for the sensing process and the physical production process, establishing a managing process for the monitoring process, the sensing process and the physical production process, establishing a planning process for the managing process, the monitoring process, the sensing process and the physical production process, and establishing a fog node as part of the work cell for all of the processes.

Abstract: A packoff for hanging a liner string from a tubular string cemented in a wellbore includes: a tubular body having an outer groove and an inner groove; an inner seal assembly disposed in the inner groove; an outer seal assembly disposed in the outer groove; a cap connected to an upper end of the body for retaining the seal assemblies; a plurality dogs disposed in respective openings formed through a wall of the body; and a lock sleeve. The lock sleeve is: disposed in the body, longitudinally movable relative to the body, and has a cam profile formed in an outer surface thereof for extending the dogs.

Abstract: In one embodiment, a packet switching device creates multiple virtual packet switching devices within the same physical packet switching device using virtual machines and sharing particular physical resources of the packet switching device. One embodiment uses this functionality to change the operating version (e.g., upgrade or downgrade) of the packet switching device by originally operating according to a first operating version, operating according to both a first and second operating version, and then ceasing operating according to the first operating version. Using such a technique, a packet switching device can be upgraded or downgraded while fully operating (e.g., without having to reboot line cards and route processing engines).

Abstract: A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position.

Abstract: An access device installs on a wellscreen joint during manufacture and allows access to one or more spaces or layers where tracer elements can be installed adjacent the joint's screen jacket (i.e., internal and/or external to the screen jacket). Portion of the access device is removable to allow installation of the tracer elements after the joint has been manufactured. With the tracer elements installed, the access device can be reassembled and locked in place. Any various mechanism can allow the access device to be partially removed, the tracer elements to be installed, and the access device to be reassembled in place. For example, an end ring holding the jacket on the basepipe can have at least one channel communicating with a space or layer for insertion of the tracer elements. A removable cover can be removed to allow access to the at least one channel and can be reattached for the wellscreen to be used downhole.

Abstract: A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position.

Abstract: In one embodiment, a packet switching device creates multiple virtual packet switching devices within the same physical packet switching device using virtual machines and sharing particular physical resources of the packet switching device. One embodiment uses this functionality to change the operating version (e.g., upgrade or downgrade) of the packet switching device by originally operating according to a first operating version, operating according to both a first and second operating version, and then ceasing operating according to the first operating version. Using such a technique, a packet switching device can be upgraded or downgraded while fully operating (e.g., without having to reboot line cards and route processing engines).

Abstract: In one embodiment, a packet switching device creates multiple virtual packet switching devices within the same physical packet switching device using virtual machines and sharing particular physical resources of the packet switching device. One embodiment uses this functionality to change the operating version (e.g., upgrade or downgrade) of the packet switching device by originally operating according to a first operating version, operating according to both a first and second operating version, and then ceasing operating according to the first operating version. Using such a technique, a packet switching device can be upgraded or downgraded while fully operating (e.g., without having to reboot line cards and route processing engines).

Abstract: A downhole tool having a throughbore is disclosed for use in a tubular located in a wellbore. The downhole tool has a sealing element configured to seal an annulus between the downhole tool and an inner wall of the tubular; at least one flow path formed in the downhole tool, wherein the flow path is configured to allow fluids in the annulus to flow past the sealing element when the sealing element is in a sealed position; and at least one valve in fluid communication with the flow path and configured to allow the fluids to flow through the flow path in a first direction while preventing the fluids from flowing through the flow path in a second direction. A guard may be installed proximate anchor elements. The guard extends radially beyond an outer diameter of the anchor elements when the anchor elements are in a retracted position.