Abstract: The present invention pertains to an electric submersible pump (ESP) system. The system usually has one or more downhole devices comprising one or more pumps and one or more motors for operating the one or more pumps and surface equipment. The surface equipment includes a controls enclosure configured to operate the ESP system and a power cable configured to provide communication from the controls enclosure to one or more of the downhole devices. The controls enclosure is configured as an enclosure on the surface comprising at least two compartments separated based on exposure to voltage potential.

Abstract: Systems and methods for providing notifications to monitoring systems that are remotely located from a well upon failure of a surge suppressor in a drive system for equipment used in the operation of the well. In one embodiment, an ESP system is installed in a well. A VSD having a surge suppressor is coupled between a power source and the ESP system. The surge suppressor is monitored to detect a failure of its surge suppression capabilities. In response to detecting a failure, a notification is provided to a monitoring system that is located remotely from the well. The notifications may be provided via phone call, email, text message or other means. The surge suppressor may also provide a local indication of the failure. The VSD may be configured to continue operation despite the failure of the surge suppression capability.

Abstract: Systems and methods in which DC power is provided to a common DC bus to which multiple ESP systems are connected. Each ESP system coupled through an interface unit to the common DC bus. The interface unit selectively allows power from the common DC bus to be provided to a drive which then produces AC power without first having to rectify the power received from the common bus. The AC power produced by the drive is provided to the ESP motor, which drives the pump to lift fluid from the well. Each interface unit may include an input contactor that is closed to couple the ESP to the common DC bus, a charging contactor that is closed to provide power to the ESP, and a charging resistor that allows a capacitor or local bus at the input of the drive to be charged before the charging contactor is closed.

Abstract: Systems and methods for providing notifications to monitoring systems that are remotely located from a well upon failure of a surge suppressor in a drive system for equipment used in the operation of the well. In one embodiment, an ESP system is installed in a well. A VSD having a surge suppressor is coupled between a power source and the ESP system. The surge suppressor is monitored to detect a failure of its surge suppression capabilities. In response to detecting a failure, a notification is provided to a monitoring system that is located remotely from the well. The notifications may be provided via phone call, email, text message or other means. The surge suppressor may also provide a local indication of the failure. The VSD may be configured to continue operation despite the failure of the surge suppression capability.

Abstract: A remote instrument control and reporting system utilizes a host communication gateway based on hardware and software that interfaces with a field device, remote terminal unit, or control system that operates across multiple communications infrastructures to a common back end data delivery system. This design allows Modbus hosts or similar SCADA polled technologies, such as a field bus that utilizes various industrial protocols to control instruments at and acquire instrumentation data from physically isolated installations. In particular, this design is well suited for applications such as oil well electrical submersible pumps. The data is communicated through, for example, a low Earth orbit satellite into a host communications gateway that simulates within a host computer environment the same polling registers that the data was collected from in the remote locations.

Abstract: A remote instrument control and reporting system utilizes a host communication gateway based on hardware and software that interfaces with a field device, remote terminal unit, or control system that operates across multiple communications infrastructures to a common back end data delivery system. This design allows Modbus hosts or similar SCADA polled technologies, such as a field bus that utilizes various industrial protocols to control instruments at and acquire instrumentation data from physically isolated installations. In particular, this design is well suited for applications such as oil well electrical submersible pumps. The data is communicated through, for example, a low Earth orbit satellite into a host communications gateway that simulates within a host computer environment the same polling registers that the data was collected from in the remote locations.