Abstract: A gas-lift well includes a casing extending down a wellbore, production tubing extending within the casing, a gas system for inserting compressed gas into an annular space between the casing and the production tubing, at least one gas-lift input, and at least one fluid flow regime modifier. The at least one gas-lift input extends from the annular space, through the production tubing, and to an interior of the production tubing. The at least one fluid flow regime modifier is disposed within the production tubing and is at least partially within a fluid column of the production tubing, the at least one fluid flow regime modifier is configured to reduce fluid fallback and impart a turbulent flow regime to at least a portion of the fluid column.

Abstract: A networked HVAC system is implemented as part of a multi-unit dwelling. At least one HVAC unit is installed within each unit of the multi-unit dwelling. Each individual HVAC unit includes a localized HVAC unit controller, which is connected to an external network. The HVAC unit controller also can be connected to any other controllable HVAC devices in the unit, such as an exhaust fan. The HVAC system addresses the open-loop issue by monitoring temperature, air flow, humidity, air pressure, occupancy, window open/close state, and HVAC units of all units in a multi-unit dwelling, as well as common areas, and optimizing operating parameters to minimize wide swings in operational states and managing the overall system of multiple units/common areas so that energy usage and temperature/ventilation control is optimized. The HVAC system also enables learning and predictive modeling for adapting to real-time and anticipated condition requirements within each zone.

Abstract: A digital signaling device provides visual, audible, and haptic indicators when the digital signaling device changes state. The digital signaling device has a same operational feel and response as a classic electro-mechanical decorator-style light switch, including maintaining switch paddle position, using attractive magnetic latching in combination with a spring contact. The switch paddle can be pressed into one of two positions, each position representing a different state of the digital signaling device. The switch paddle provides a visual indicator of the digital signaling device state in that the switch paddle is maintained in one of the two positions. The attractive magnetic latching provides both an audible and haptic indicator when the magnet pairs are engaged, which corresponds to a change of state of the digital signaling device. The spring contact provides a digital switching mechanism for changing the state of the digital signaling device.

Abstract: A networked HVAC system is implemented as part of a multi-unit dwelling. At least one HVAC unit is installed within each unit of the multi-unit dwelling. Each individual HVAC unit includes a localized HVAC unit controller, which is connected to an external network. The HVAC unit controller also can be connected to any other controllable HVAC devices in the unit, such as an exhaust fan. The HVAC system addresses the open-loop issue by monitoring temperature, air flow, humidity, air pressure, occupancy, window open/close state, and HVAC units of all units in a multi-unit dwelling, as well as common areas, and optimizing operating parameters to minimize wide swings in operational states and managing the overall system of multiple units/common areas so that energy usage and temperature/ventilation control is optimized. The HVAC system also enables learning and predictive modeling for adapting to real-time and anticipated condition requirements within each zone.

Abstract: A system and method for bi-directional direct current (DC) charging in electric vehicle supply equipment (EVSE) is disclosed. The system receives from power source managing subsystem, via plurality of power sources, electricity inputs corresponding to at least one of variable DC electricity input and relatively fixed DC input voltage comprising plurality of wide DC input voltage ranges. The system displays, via user interface associated with EVSE, selectable options to user. Further, system determines at least one of charging schema for charging operation, appropriate charging mode in plurality of charging modes, and discharging schema for the discharging operation using at least one of artificial intelligence (AI) techniques and machine learning (ML) techniques, based on power source information, and power demands. Further, the system executes, upon receiving the generated DC electricity, at least one of charging operation, appropriate charging mode, and discharging operation, based on power demands.

Abstract: An electric vehicle solar charging system is disclosed, comprising a photovoltaic system or a DC source to transmit DC electricity to an electric vehicle via DC/DC conversion system. The DC/DC conversion is configured to directly transmit power to a battery pack configured to power the electric vehicle through the electric vehicle's DC charging inputs. This electricity can be supplemented by building battery or energy storage systems with DC output, or by DC electricity converted from AC which was supplied by AC sources. The combined circuit can be further modified by an in-line DC/DC converter at output if necessary, which also may be a bidirectional converter to supply energy from the EV back to the house load through a connected AC/DC inverter. When no DC is available, an AC power source can optionally provide supplemental power to the electric vehicle directly through the AC charging inputs.

Abstract: A system for analysis of a porous formation is disclosed. Such a system can provide electrical signals for one or more of the porous formation or a representation of the porous formation; can determine, using the electrical signals, permittivity and conductivity measures for the porous formation or the representation of the porous formation; and can model the permittivity and conductivity measures to generate a first estimation model associated with pore features for the porous formation, so that a downhole rock formation can be evaluated for pore connectivity, permeability, and Archie's texture parameters using estimation models.

Abstract: A system for the resilience of an electric submersible pumping system to a transient power interruption includes a power backup connected to the variable speed drive of the pumping system. A method for controlling the electric submersible pump during the transient power interruption includes connecting a variable speed drive to a power source, charging one or more rechargeable batteries within the power backup, and connecting the power backup to the variable speed drive. The method continues with the steps of operating the motor with the variable speed drive, detecting a disruption in AC power from the power source to the variable speed drive, and applying power from the power backup to the variable speed drive to operate the motor during the transient interruption in electrical power.

Abstract: Methods and devices for connecting a mobile device with different data storage devices located either locally or remotely are provided. The device may apply one or more rules to create a hierarchical virtualization of the several data storage devices. The virtualization may then be provided to the user as a single, hierarchical file system. Further, a monitoring system may monitor the file system to determine if any new applications have been installed or if applications are currently being executed. If a connection is made to a secure network, the system may provide the information derived from the monitoring to the secure network. The secure network can then analyze the information to determine if any of the applications should be uninstalled from the device or should be stopped while the device is connected to the network.

Abstract: Systems and methods for communicating between surface equipment and a downhole tool installed in a well. First and second toroidal transformers are positioned around an inner one of a pair of coaxial structural members of a well completion (e.g., a pump rod and tubular, or a tubular and a well casing) which are electrically coupled to form an electrical circuit. A transmitter generates a data signal which is applied to the first toroidal transformer, causing a corresponding electrical current to be induced in the circuit, which then induces the data signal on the second toroidal transformer. A receiver coupled to the second toroidal transformer receives the data signal induced on the second toroidal transformer. The transmitter and receiver may be components of transceivers that may communicate bidirectionally. Additional toroidal coils and transceiver may be provided to communicate with equipment at additional locations in the well.

Abstract: Systems and methods for wireless power transmission in a well, wherein first and second structural members of a well completion are electrically connected to form an electrical circuit, with first and second toroidal transformers positioned around the second structural member at different axial locations. A power source coupled to the first toroidal transformer is configured to generate an output voltage which is applied to the first toroidal transformer, inducing a corresponding electrical current in the electrical circuit. This in turn induces a second voltage on the second toroidal transformer, which is provided to a downhole tool. The tool may include conditioning circuitry, which rectifies the received power and charges a battery. The downhole electric tool is then operated using the received power.

Abstract: A submersible pumping system has an electric motor, a rotary hydraulic pump driven by the electric motor, and a linear hydraulic pump that is configured to move a production fluid. The rotary hydraulic pump produces a pressurized working fluid that drives the linear hydraulic pump. In another aspect, a method is disclosed for controlling the temperature of an electric motor within a submersible pumping system disposed in a wellbore. The method includes the steps of circulating motor lubricant through a hydraulically driven production pump to reduce the temperature of the motor lubricant.

Abstract: A gas-lift well includes a casing extending down a wellbore, production tubing extending within the casing, a gas system for inserting compressed gas into an annular space between the casing and the production tubing, at least one gas-lift input, and at least one fluid flow regime modifier. The at least one gas-lift input extends from the annular space, through the production tubing, and to an interior of the production tubing. The at least one fluid flow regime modifier is disposed within the production tubing and is at least partially within a fluid column of the production tubing, the at least one fluid flow regime modifier is configured to reduce fluid fallback and impart a turbulent flow regime to at least a portion of the fluid column.

Abstract: A submersible pumping system for use in producing wellbore fluids from a wellbore within a subterranean formation includes a motor and a pump driven by the motor to produce the wellbore fluids. The pumping system further includes a self-supporting power cable connected to the pump. The self-supporting power cable includes a plurality of conductors and a plurality of strength members. A method of deploying and retrieving a submersible pumping system in a wellbore includes the steps of connecting a wireline to the submersible pumping system, connecting a self-supporting power cable to the submersible pumping system, lowering the submersible pumping system into the wellbore while the weight of the submersible pumping system is borne by the wireline.

Abstract: An artificial lift system including a tubular extending into a wellbore. The tubular includes a first end arranged at a surface of a formation, a second end terminating in the wellbore, and an intermediate portion. The intermediate portion includes a plurality of gas lift valves. A jet pump is fluidically connected to the second end of the tubular. A liquid supply conduit includes a terminal end arranged at the first end of the tubular and a gas supply conduit includes a terminal end portion arranged at the first end of the tubular.

Abstract: A system for the resilience of an electric submersible pumping system to a transient power interruption includes a power backup connected to the variable speed drive of the pumping system. A method for controlling the electric submersible pump during the transient power interruption includes connecting a variable speed drive to a power source, charging one or more rechargeable batteries within the power backup, and connecting the power backup to the variable speed drive. The method continues with the steps of operating the motor with the variable speed drive, detecting a disruption in AC power from the power source to the variable speed drive, and applying power from the power backup to the variable speed drive to operate the motor during the transient interruption in electrical power.

Abstract: A gas-lift well includes a casing extending down a wellbore, production tubing extending within the casing, a gas system for inserting compressed gas into an annular space between the casing and the production tubing, at least one gas-lift input, and at least one fluid flow regime modifier. The at least one gas-lift input extends from the annular space, through the production tubing, and to an interior of the production tubing. The at least one fluid flow regime modifier is disposed within the production tubing and is at least partially within a fluid column of the production tubing, the at least one fluid flow regime modifier is configured to reduce fluid fallback and impart a turbulent flow regime to at least a portion of the fluid column.

Abstract: Methods and devices for selectively presenting a user interface or “desktop” across two devices are provided. More particularly, a unified desktop is presented across a device and a computer system that comprise a unified system. The unified desktop acts as a single user interface that presents data and receives user interaction in a seamless environment that emulates a personal computing environment. To function within the personal computing environment, the unified desktop includes a process for docking and undocking the device with the computer system. The unified desktop presents desktops or windows based on the displays that were pre-existing before docking or undocking.

Abstract: Systems and methods for communicating between surface equipment and a downhole tool installed in a well. First and second toroidal transformers are positioned around an inner one of a pair of coaxial structural members of a well completion (e.g., a pump rod and tubular, or a tubular and a well casing) which are electrically coupled to form an electrical circuit. A transmitter generates a data signal which is applied to the first toroidal transformer, causing a corresponding electrical current to be induced in the circuit, which then induces the data signal on the second toroidal transformer. A receiver coupled to the second toroidal transformer receives the data signal induced on the second toroidal transformer. The transmitter and receiver may be components of transceivers that may communicate bidirectionally. Additional toroidal coils and transceiver may be provided to communicate with equipment at additional locations in the well.

Abstract: Systems and methods for wireless power transmission in a well, wherein first and second structural members of a well completion are electrically connected to form an electrical circuit, with first and second toroidal transformers positioned around the second structural member at different axial locations. A power source coupled to the first toroidal transformer is configured to generate an output voltage which is applied to the first toroidal transformer, inducing a corresponding electrical current in the electrical circuit. This in turn induces a second voltage on the second toroidal transformer, which is provided to a downhole tool. The tool may include conditioning circuitry, which rectifies the received power and charges a battery. The downhole electric tool is then operated using the received power.