Downhole control arrangement, valve arrangement, side pocket mandrel, and method for operating a downhole valve arrangement
AssigneePetroleum Technology Company AS
InventorOliver GUEST
Life of this patent
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Abstract
A downhole control arrangement for installation in hydrocarbon well and for controlling the operation of a downhole valve arrangement comprises an electrically controlled control valve, wherein the control arrangement comprises a control system and an electric power supply source configured for supplying electric power to the control system. A downhole valve arrangement for controlling the flow of an injection fluid into a production tubing of a hydrocarbon well comprises a control arrangement, and a side pocket mandrel for installation in a production tubing for use in a hydrocarbon well, wherein the side pocket mandrel comprises an interior pocket space and a valve arrangement.
Claims24
A downhole control arrangement for installation in hydrocarbon well and for controlling an operation of a downhole valve arrangement comprising an electrically controlled control valve, wherein the downhole control arrangement comprises a control system and an electric power supply source configured to supply electric power to the control system.
A side pocket mandrel for installation in a production tubing for use in a hydrocarbon well, wherein the side pocket mandrel comprises:
- an interior pocket space;
- a valve arrangement located in the interior pocket space for controlling the flow of an injection fluid from an external injection fluid source into the production tubing;
- and
- an induction coil arrangement connected to a topside controller and connected to the valve arrangement for transmission of signals from the topside controller to the valve arrangement or vice versa and/or for transfer of electric power from the topside controller to the valve arrangement.
A method for operating a downhole valve arrangement, installed in a side pocket mandrel forming part of a production tubing of a hydrocarbon well, the downhole valve arrangement comprising an electrically controlled control valve for controlling a flow of an injection fluid from an external injection fluid source into the production tubing, and wherein the downhole valve arrangement is connected to a downhole control arrangement comprising an induction coil arrangement comprising two induction coils, the method comprising :
- sending a signal from a topside controller, via cabling provided in an annulus, to a first induction coil functioning as a transmitter coil,
- transmitting a signal by induction to the second induction coil functioning as a receiver coil,
- transmitting a signal via cabling to a control unit,
- sending a signal from the control unit to an actuator to open the electrically controlled control valve, or alternatively to close the electrically controlled control valve.
A method for supplying electric power to a downhole valve arrangement, installed in a side pocket mandrel forming part of a production tubing-of a hydrocarbon well, the downhole valve arrangement comprising an electrically controlled control valve for controlling a flow of an injection fluid from an external injection fluid source into the production tubing, and wherein the downhole valve arrangement is connected to a downhole control arrangement comprising an induction coil arrangement comprising a first induction coil and a second induction coil, the method comprising ,
- transmitting electric power from a topside controller connected to an electric power source, via cabling provided in an annulus, to the first induction coil functioning as a transmitter coil,
- transmittingthe electric power by induction to the second induction coil -functioning as a receiver coil,
- transmitting of the electric power via cabling to a control unit that controls an actuator to open the electrically controlled control valve, or alternatively to close the valve.
Dependencies are inferred from the claim text.