TURBINE CURRENT GENERATOR
    2.
    发明公开

    公开(公告)号:US20230203919A1

    公开(公告)日:2023-06-29

    申请号:US17999633

    申请日:2021-06-03

    Applicant: ENI S.P.A.

    CPC classification number: E21B41/0085 F03B13/02 H02K7/1823

    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.

    SYSTEM AND METHOD FOR MONITORING OF AN OBJECT/STRUCTURE BY MEASUREMENT OF VIBRATIONS USING AN OPTICAL FIBER

    公开(公告)号:US20250123139A1

    公开(公告)日:2025-04-17

    申请号:US18688110

    申请日:2022-09-21

    Applicant: ENI S.P.A.

    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.

    OPTICAL FIBER VIBRATION MEASUREMENT SYSTEM IN MULTIPHASE FLOWS WITH RELATED METHOD TO MONITOR MULTIPHASE FLOWS

    公开(公告)号:US20170336248A1

    公开(公告)日:2017-11-23

    申请号:US15538764

    申请日:2015-12-23

    Applicant: Eni S.p.A.

    CPC classification number: G01H9/004 G01D5/35361 G01F1/661 G01V8/24 G01V11/002

    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. A process is also described for reconfiguring an optical reflectometry system already installed at a facility to be monitored.

    METHOD FOR REVEALING ANOMALOUS DISCONTINUITY INTERFACES IN PORE PRESSURES IN NON-DRILLED GEOLOGICAL FORMATIONS AND A SYSTEM IMPLEMENTING IT
    5.
    发明申请
    METHOD FOR REVEALING ANOMALOUS DISCONTINUITY INTERFACES IN PORE PRESSURES IN NON-DRILLED GEOLOGICAL FORMATIONS AND A SYSTEM IMPLEMENTING IT 有权
    在非钻孔地质构造中发现孔隙中的异常不连续界面的方法和实施系统的系统

    公开(公告)号:US20150361790A1

    公开(公告)日:2015-12-17

    申请号:US14761168

    申请日:2014-01-14

    Applicant: ENI S.P.A.

    Abstract: A method for revealing anomalous discontinuity interfaces in pore pressures in non-drilled geological formations and an implementing system. The method includes generating, by an electroacoustic transducer, first pressure sound waves and receiving a reflected signal of such first pressure sound waves generated by at least one discontinuity interface due to passage from first to second different geological formations situated successively along an emission direction of the electroacoustic transducer; calculating speed of the first pressure sound waves generated and distance between the electroacoustic transducer and the at least one discontinuity interface; generating, by the electroacoustic transducer, second pressure sound waves and revealing the electrical impedance induced at terminals of the electroacoustic transducer; estimating, based on the electrical impedance revealed, plural parameters characteristic of the first and second geological formation; estimating pressure of the second geological formation based on the sound speed and distance calculated and the plural characteristic parameters estimated.

    Abstract translation: 揭示非钻孔地质构造孔隙压力异常不连续界面的方法和实施体系。 该方法包括通过电声换能器产生第一压力声波并且接收由至少一个不连续界面产生的这样的第一压力声波的反射信号,这是由于从第一到第二不同的地质构造物沿着沿着发射方向 电声换能器; 计算产生的第一压力声波的速度和电声换能器与至少一个不连续接口之间的距离; 通过电声换能器产生第二压力声波并且显示在电声换能器的端子处感应的电阻抗; 基于所显示的电阻抗,估计第一和第二地质构造的特征的多个参数; 基于计算的声速和距离估计第二地质构造的压力和估计的多个特征参数。

    METHOD FOR SIMULATING THE THERMO-FLUID DYNAMIC BEHAVIOR OF MULTIPHASE FLUIDS IN A HYDROCARBONS PRODUCTION AND TRANSPORT SYSTEM

    公开(公告)号:US20190114552A1

    公开(公告)日:2019-04-18

    申请号:US16091021

    申请日:2017-04-03

    Applicant: ENI S.p.A.

    Abstract: Simulation method (100) for simulating the thermo-fluid dynamic behavior of multiphase fluids in a hydrocarbons production and transport system, said method comprising the following steps: outlining (110) the hydrocarbons production and transport system as a plurality of interconnected component blocks, thus creating a schematic representation; modeling (120) each component block with a simplified analytical mathematical model selected from the group of models comprising at least one conduit model, a valve model, a reservoir model and a separator model, each simplified analytical mathematical model comprising a plurality of constitutive equations adapted to describe the thermo-fluid dynamic behavior of the corresponding component block; generating (130) an oriented graph on the basis of the schematic representation; determining (140) a plurality of topological equations on the basis of the oriented graph; determining (150) a plurality of output variables adapted to describe the thermo-fluid dynamic behavior of the system by solving the set of the plurality of topological equations and of the constitutive equations.

    WEC CONTROLLER, METHOD AND SYSTEM
    8.
    发明公开

    公开(公告)号:US20240348124A1

    公开(公告)日:2024-10-17

    申请号:US18573203

    申请日:2022-06-23

    Applicant: ENI S.P.A.

    CPC classification number: H02K7/1823 F03B13/14 F05B2220/706 F05B2240/93

    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.

    DETECTION SYSTEM FOR DETECTING DISCONTINUITY INTERFACES AND/OR ANOMALIES IN PORE PRESSURES IN GEOLOGICAL FORMATIONS

    公开(公告)号:US20220397692A1

    公开(公告)日:2022-12-15

    申请号:US17621336

    申请日:2020-06-22

    Applicant: ENI S.P.A.

    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.

    ELECTRO-ACOUSTIC TRANSDUCER
    10.
    发明申请

    公开(公告)号:US20220170364A1

    公开(公告)日:2022-06-02

    申请号:US17441559

    申请日:2020-03-19

    Applicant: ENI S.P.A.

    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.

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