Abstract: A device for continuous water pressure measurement in a hydrocarbon reservoir comprising a pressure sensor, a hydrophilic membrane positioned between a reservoir formation and the pressure sensor, the hydrophilic membrane having a surface area A, and a biasing device pushing the hydrophilic membrane against the reservoir formation with a force equal to, or larger than, the pressure difference between a hydrocarbon phase Po in the reservoir and the water (Po-Pw) multiplied with the probe membrane contact area. Methods of installing the device in a hydrocarbon reservoir are also disclosed.

Abstract: A device for continuous water pressure measurement in a hydrocarbon reservoir comprising a pressure sensor, a hydrophilic membrane positioned between a reservoir formation and the pressure sensor, the hydrophilic membrane having a surface area A, and a biasing device pushing the hydrophilic membrane against the reservoir formation with a force equal to, or larger than, the pressure difference between a hydrocarbon phase Po in the reservoir and the water (Po?Pw) multiplied with the probe membrane contact area. Methods of installing the device in a hydrocarbon reservoir are also disclosed.

Abstract: A drilling apparatus and a method for releasing rods stuck in surrounding ground use a torsional device for releasing the drilling assembly and induce centrifugal forced vibrations and bending vibrations in the drilling rods, facilitating the release from positions stuck inside the drilled hole. The apparatus allows the available power of the motor drilling device to be fully applied for generating periodic forced vibrations useful for detaching the drilling rods stuck in the surrounding ground.

Abstract: An unstuck system of stuck drill pipes of a drill string of a drilling apparatus adapted to drilled wells to extract fluids or mud includes a torsion coupling system adapted to disconnect an upper portion from a bottom portion including the stuck drill pipes of the drill string and to transfer a rotation to the unstuck system. The unstuck system includes at least an axial forced vibration generator including at least one axially movable element adapted to generate at least a vibration which is propagated to pipes of a portion free from being stuck, where the induced vibrations fall within a band of induced frequencies near or corresponding to a resonance frequency of the portion free from being stuck.

Abstract: A drilling apparatus and a method for releasing rods stuck in surrounding ground are described, that use a torsional device for releasing the drilling assembly and induce centrifugal forced vibrations and bending vibrations in the drilling rods, facilitating the release from positions stuck inside the drilled hole. The apparatus allows the available power of the motor drilling device to be fully applied for generating periodic forced vibrations useful for detaching the drilling rods stuck in the surrounding ground.

Abstract: The present invention relates to a system for facilitating the extraction of hydrocarbons, in particular extraction by RF heating of high-viscosity hydrocarbons in situ by means of an antenna comprising a coaxial array of mode converters.

Abstract: The present invention relates to a system for facilitating the extraction of hydrocarbons, in particular extraction by RF heating of high-viscosity hydrocarbons in situ by means of an antenna comprising a coaxial array of mode converters.

Abstract: Telemetry systems and methods are disclosed for real time communication of information between multiple positions in a wellbore.

Abstract: A telemetry system for bi-directional communication of data between a well point and a terminal unit situated on a surface, which can be used inside drilling or production strings. The system includes data transmission and optional reception devices. An active vehicle, which can be equipped with plural automation levels, ranging from purely tele-operated to completely autonomous, is provided for unwinding and pulling a connection line, capable of moving inside a drilling or production string, or a passive vehicle, moved by a deploying cable and a suitable winding/unwinding device, in particular a winch. A connection line, containing electric conductors and/or one or more optical fibers of the transmission and optional reception devices is provided between a well point and its corresponding point situated inside the vehicle or on the surface.

Abstract: The present invention deals with a method which allows to determine the wall friction profile along pipes transporting liquids, particularly petroleum industry liquids, by measuring the pressure transients induced by fast changes in the flow rate. This method is applicable to pipes in which the discharge pressure is greater then the bubble point of the transported liquid and, in any case, when free gas is absent in the pipe.

Abstract: Telemetry systems and methods are disclosed for real time communication of information between multiple positions in a wellbore.

Abstract: Telemetry systems and methods are disclosed for real time communication of information between multiple positions in a wellbore.

Abstract: A telemetry system for bi-directional communication of data between a well point and a terminal unit situated on a surface, which can be used inside drilling or production strings. The system includes data transmission and optional reception devices. An active vehicle, which can be equipped with plural automation levels, ranging from purely tele-operated to completely autonomous, is provided for unwinding and pulling a connection line, capable of moving inside a drilling or production string, or a passive vehicle, moved by a deploying cable and a suitable winding/unwinding device, in particular a winch. A connection line, containing electric conductors and/or one or more optical fibers of the transmission and optional reception devices is provided between a well point and its corresponding point situated inside the vehicle or on the surface.

Abstract: The present invention deals with a method which allows to determine the wall friction profile along pipes transporting liquids, particularly petroleum industry liquids, by measuring the pressure transients induced by fast changes in the flow rate. This method is applicable to pipes in which the discharge pressure is greater then the bubble point of the transported liquid and, in any case, when free gas is absent in the pipe.

Abstract: Telemetry systems and methods are disclosed for real time communication of information between multiple positions in a wellbore.