Abstract: A controller of a gyroscope structure associated with a floating hull and equipped with an electrical converter suitable for converting the rotational energy of the floating hull into electrical energy, the controller, receiving as input a perturbed output state including operating variables of the gyroscope structure to determine a driving signal of the electrical converter, which includes a first signal portion determined using a predictive control model of the gyroscope structure computed on the basis of the perturbed output state and a second signal portion determined using a tube convergence computed on parametric deviations of the operating variables of the perturbed output state, the parametric deviations computed with respect to the operating variables of a unperturbed output nominal state of the gyroscope structure.

Abstract: A system and method for monitoring by optical fiber for the measurement of vibrations an object/structure includes the optical fiber associated with the object/structure and one end connected to a circulator and a terminated opposite end, a source of symbols emitting sequence of NS input signals and configured to generate an input vector, a multi-carrier OFDM modulation block adapted to modulate a light beam emitted by a laser source by an OFDM modulating signal to determine a sensing signal with NC subcarriers, the modulating signal OFDM being generated on the basis of the input vector; the circulator adapted to send the sensing signal to the optical fiber and to receive a backscattered signal; an OFDM demodulation block; and a processing unit that processes the output and input vectors, on the basis of respective Nc reference vectors of the optical fiber, generating a deformation vector.

Abstract: A turbine current generator includes a hollow bearing cylinder to be engaged inside a pipe or a duct for the transit of a fluid, in particular a fluid transit duct deriving from the drilling or exploration of an oil field; a hollow rotating cylinder rotatably and coaxially engaged inside the bearing cylinder and defining a respective transit cylindrical chamber for a fluid. The bearing and rotating cylinders defining at least a cylindrical gap; one or more magnetic or electromagnetic components operatively engaged to the bearing cylinder and/or to the rotating cylinder to generate at least one electric current during the rotation of the rotating cylinder inside the bearing cylinder; an impeller or impellers arranged in the chamber of the rotating cylinder according to positions aligned along a longitudinal axis of the latter, the impellers engaged inside the rotating cylinder to rotate integrally with the latter upon the action of a fluid.

Abstract: A process and system for applying a liner to an inner surface of a pipeline uses an “inversion” technique to apply the liner. This involves arranging the liner into everted and non-everted portions and driving the non-everted portion through the pipeline such that it everts and is applied to the inner surface of the pipeline. At least first and second pipeline vehicles are used to drive the non-everted portion of the liner through the pipeline.

Abstract: A controller of a gyroscope structure associated with a floating hull and equipped with an electrical converter suitable for converting the rotational energy of the floating hull into electrical energy, the controller, receiving as input a perturbed output state including operating variables of the gyroscope structure to determine a driving signal of the electrical converter, which includes a first signal portion determined using a predictive control model of the gyroscope structure computed on the basis of the perturbed output state and a second signal portion determined using a tube convergence computed on parametric deviations of the operating variables of the perturbed output state, the parametric deviations computed with respect to the operating variables of a unperturbed output nominal state of the gyroscope structure.

Abstract: A process and system for applying a liner to an inner surface of a pipeline uses an “inversion” technique to apply the liner. This involves arranging the liner into everted and non-everted portions and driving the non-everted portion through the pipeline such that it everts and is applied to the inner surface of the pipeline. At least first and second pipeline vehicles are used to drive the non-everted portion of the liner through the pipeline.

Abstract: A process and system for applying a liner to an inner surface of a pipeline uses an “inversion” technique to apply the liner. This involves arranging the liner into everted and non-everted portions and driving the non-everted portion through the pipeline such that it everts and is applied to the inner surface of the pipeline. At least first and second pipeline vehicles are used to drive the non-everted portion of the liner through the pipeline.

Abstract: An energy storage device, especially a super capacitor, useful for high temperature applications has current collector elements supporting a carbonaceous matrix modified or doped with pseudo-capacitive materials, including one or more transition metal dichalcogenides, transition metal oxides and mixtures thereof, in contact with a non-aqueous electrolyte composition whereby it is possible to exploit the faradic mechanism in addition to the electric double layer mechanism as an energy storage principle.

Abstract: A detection system includes a drill bit where electro-acoustic transducers operate as a transmitter and/or receiver, are integrated; electronic circuits; a control unit associated with a data storage unit and is powered by an electrical supply system, the processing and control unit for generating driving signals sent to the electro-acoustic transducer acting as a transmitter by the analogue driving electronic circuits, for acquiring signals received from the transducer and for processing the received signals to determine discontinuity interfaces and/or anomalies in pore pressures in geological formations; wherein each of the electro-acoustic transducers is in contact with a pressurised fluid and includes: a tubular body with two end portions opposed to each other longitudinally, internally a first chamber ending with the first end portion and a second chamber on one side adjacent and in fluid communication with the first chamber and, on the other side ending with the second end portion.

Abstract: Tubular structures for use in a subsea environment and a method of manufacturing the same are provided. These composite tubular structures can be used in the oil and gas industry, for example, as production risers.

Abstract: A turbine current generator includes a hollow bearing cylinder to be engaged inside a pipe or duct for the transit of a fluid, in particular a fluid transit duct deriving from the drilling or exploration of an oil field; a hollow rotating cylinder rotatably and coaxially engaged inside the bearing cylinder and defining a respective transit cylindrical chamber for a fluid. The bearing and rotating cylinders defining at least a cylindrical gap; one or more magnetic or electromagnetic components (6)-operatively engaged to the bearing cylinder and/or to the rotating cylinder to generate at least one electric current during the rotation of the rotating cylinder inside the bearing cylinder; an impeller or impellers arranged in the chamber of the rotating cylinder according to positions aligned along a longitudinal axis of the latter, the impellers engaged inside the rotating cylinder to rotate integrally with the latter upon the action of a fluid.

Abstract: An electro-acoustic transducer includes a tubular body extending a longitudinal direction and having two end portions, opposing each other longitudinally, and internally having a first chamber, sending with the first end portion and a second chamber, on one side adjacent to and in fluidic communication with the first chamber and on the other side ending with the second end portion. The first end portion is closed towards the outside by a membrane applied to the tubular body. The second end portion has openings that put it in fluidic communication to the outside of the tubular body. The first chamber containing electrical windings arranged in succession to each other in the longitudinal direction. The second chamber is filled with a liquid. A movable element is housed in the first chamber and has a permanent magnets packaged and arranged one above the other, with the magnetization alternating and separated.

Abstract: A detection system includes a drill bit where electro-acoustic transducers operate as a transmitter and/or receiver, are integrated; electronic circuits; a control unit associated with a data storage unit and is powered by an electrical supply system, the processing and control unit for generating driving signals sent to the electro-acoustic transducer acting as a transmitter by the analogue driving electronic circuits, for acquiring signals received from the transducer and for processing the received signals to determine discontinuity interfaces and/or anomalies in pore pressures in geological formations; wherein each of the electro-acoustic transducers is in contact with a pressurised fluid and includes: a tubular body with two end portions opposed to each other longitudinally, internally a first chamber with the first end portion and a second chamber on one side adjacent and in fluid communication with the first chamber and, on the other side ending with the second end portion.

Abstract: An electro-acoustic transducer includes a tubular body extending a longitudinal direction and having two end portions, opposing each other longitudinally, and internally having a first chamber, sending with the first end portion and a second chamber, on one side adjacent to and in fluidic communication with the first chamber and on the other side ending with the second end portion. The first end portion is closed towards the outside by a membrane applied to the tubular body. The second end portion has openings that put it in fluidic communication to the outside of the tubular body. The first chamber containing electrical windings arranged in succession to each other in the longitudinal direction. The second chamber is filled with a liquid. A movable element is housed in the first chamber and has a permanent magnets packaged and arranged one above the other, with the magnetization alternating and separated.

Abstract: Tubular structures for use in a subsea environment and a method of manufacturing the same are provided. These composite tubular structures can be used in the oil and gas industry, for example, as production risers.

Abstract: An energy storage device, especially a super capacitor, useful for high temperature applications has current collector elements supporting a carbonaceous matrix modified or doped with pseudo-capacitive materials, including one or more transition metal dichalcogenides, transition metal oxides and mixtures thereof, in contact with a non-aqueous electrolyte composition whereby it is possible to exploit the faradic mechanism in addition to the electric double layer mechanism as an energy storage principle.

Abstract: The present invention relates to a device and a method for the implementation of a flexible tubular structure made of reformable composite material, designed for passing from a first folded configuration to a second longitudinally developed operating configuration using a tapered profile slidingly engageable inside the tubular structure.

Abstract: Reflectometric vibration measurement system to monitor multiphase flows in production wells or pipelines using multimode fibers comprising: —a sensing multimode optical fiber; —an optical source with at least one fiber output port, which generates optical pulses which are to be sent to the sensing fiber; —an optical receiver with at least one multimode fiber input port; —an optical device with at least 3 multimode fiber ports, in which one port is connected to the optical source, one port to the optical receiver, and one port to the sensing multimode fiber; —a system for processing the output signals from the optical receiver, further comprising more than one spatial mode filter. A process for reconfiguring an optical reflectometry system which has already been installed in a monitoring structure is also described.

Abstract: The present invention relates to a device and a method for the implementation of a flexible tubular structure made of reformable composite material, designed for passing from a first folded configuration to a second longitudinally developed operating configuration using a tapered profile slidingly engageable inside the tubular structure.

Abstract: A vibration measurement system and relative method to monitor multiphase flows in extraction wells or conduits, by analysis of backscattered multimode fiber light comprising: • a sensing multimode optical fiber; • an optical source, containing a high coherence laser that emits optical pulses to be sent in said sensing fiber; • a photonic lantern with 3 or more single-mode optical fiber ports and one multimode fiber port that is connected to the sensing multimode fiber; • an optical receiver, comprising a number of photodetectors equal to the number of the single-mode optical fiber ports of said photonic lantern minus 1, wherein each photodetector is connected to each of said single-mode ports; • a system for processing output signals from the optical receiver, the optical source being connected to one of the single-mode optical fiber ports and the other single-mode fibers being connected to the optical receiver.