Method For Liquefying A Natural Gas, Including A Phase Change
    62.
    发明申请
    Method For Liquefying A Natural Gas, Including A Phase Change 审中-公开
    包括A相变化的天然气液化方法

    公开(公告)号:US20150184930A1

    公开(公告)日:2015-07-02

    申请号:US14415109

    申请日:2013-07-04

    Applicant: SAIPEM S.A.

    Abstract: Process for liquefying natural gas in a cryogenic heat exchanger by flowing in indirect contact with refrigerant fluid entering heat exchanger at a first inlet at temperature T0 and pressure P1, and flowing through the exchanger as co-current with the natural gas stream, leaving the heat exchanger in the liquid state, then being expanded at the cold end of the exchanger to return to gaseous state at a pressure P′1 P1 and temperature T1 T0, before leaving the hot end of exchanger by outlet orifice in gaseous state T0. The fluid is then reliquefied to the inlet of the exchanger via compression followed by partial condensation and phase separation, a first liquid phase taken to the first inlet, a first gaseous portion compressed by a second compressor and cooled in desuperheater by contact with portion of the first liquid phase, prior to condensing in a second condenser.

    Abstract translation: 在低温热交换器中液化天然气的方法,该方法是在温度为T0和压力P1的第一入口处与进入热交换器的制冷剂流体间接接触流动,并与天然气流并流流过交换器,留下热量 交换器处于液态,然后在交换器的冷端膨胀,在压力P'1 P1和温度T1 T0下返回气态,然后在气态T0下通过出口孔离开交换器的热端。 然后通过压缩将流体再液化到交换器的入口,随后部分冷凝和相分离,取出到第一入口的第一液相,由第二压缩机压缩的第一气态部分,并在过热降温器中通过与部分 在第二冷凝器中冷凝之前的第一液相。

    Method for Liquefying Natural Gas with a Mixture of Coolant Gas
    63.
    发明申请
    Method for Liquefying Natural Gas with a Mixture of Coolant Gas 有权
    用冷却剂气体混合气化天然气的方法

    公开(公告)号:US20140116084A1

    公开(公告)日:2014-05-01

    申请号:US14126735

    申请日:2012-06-22

    Applicant: SAIPEM S.A.

    Abstract: A method for liquefying a natural gas primarily including methane, preferably at least 85% of methane, the other components essentially including nitrogen and C2-C4 alkanes, in which the natural gas to be liquefied is liquefied by circulating at a pressure P0 no lower than the atmospheric pressure (Patm), P0 preferably being higher than the atmospheric pressure, in at least one cryogenic heat-exchanger (EC1, EC2, EC3) by a counter-current closed-circuit circulation in indirect contact with at least one stream of coolant gas remaining in the compressed gaseous state at a pressure P1 that is entering the cryogenic heat-exchanger at a temperature T3′ that is lower than T3, T3 being the liquefaction temperature of the liquefied natural gas at the pressure P0 at the output of said cryogenic exchanger, characterised in that the coolant gas includes a mixture of nitrogen and at least one other component selected from among neon and hydrogen.

    Abstract translation: 液化天然气的方法,主要包括甲烷,优选至少85%的甲烷,其他组分基本上包括氮和C 2 -C 4烷烃,其中待液化的天然气通过以不低于 在至少一个低温热交换器(EC1,EC2,EC3)中,通过与至少一个冷却剂流间接接触的逆流闭路循环,大气压力(Patm),P0优选高于大气压力 气体以处于低于T3的温度T3'进入低温热交换器的压力P1保持在压缩气态,T3是液化天然气在所述低温输出处的压力P0下的液化温度 交换器,其特征在于,所述冷却剂气体包括氮和选自氖和氢中的至少一种其它组分的混合物。

    Method for producing a steel underwater pipe that is able to carry a corrosive fluid

    公开(公告)号:US12270493B2

    公开(公告)日:2025-04-08

    申请号:US18602757

    申请日:2024-03-12

    Applicant: SAIPEM S.A.

    Inventor: Raymond Hallot

    Abstract: A method for producing a steel underwater pipe for carrying a corrosive fluid, includes the successive steps: applying a layer of corrosion-resistant steel alloy on a terminal part of the internal wall of each pipe element from its end to be welded; the application of a plastic coating, on the internal wall of each pipe element; covering only a first part of the layer of metal alloy, a terminal part of the layer of metal ally on the side of the end to be welded of each pipe element not being covered by the plastic coating; the coaxial insertion and the crimping of a compression ring against the terminal part of the plastic coating; and the assembly by welding directly together the ends of two pipe elements by a corrosion-resistant steel alloy weld.

    SUB-SEA FACILITY AND METHOD FOR HEATING A MULTI-PHASE EFFLUENT FLOWING INSIDE A SUBSEA CASING

    公开(公告)号:US20240023209A1

    公开(公告)日:2024-01-18

    申请号:US18257448

    申请日:2021-10-27

    Applicant: SAIPEM S.A.

    CPC classification number: H05B6/108 E21B43/01 H05B2214/03

    Abstract: A subsea installation for heating a multiphase effluent circulating inside a subsea shell, includes at least one pipeline section disposed along a vertical direction and has an inner tube, an outer tube disposed around the inner tube while being coaxial therewith, a thermal insulation layer, and a system for heating by induction the outer tube. The outer tube has at a lower end an intake aperture to allow circulation of the multiphase effluent from bottom to top in an annular space delimited between the outer tube and the inner tube. The inner tube opening is at an upper end inside the outer tube and emerges at a lower end towards a discharge outlet for the multiphase effluent to allow counter-current circulation of the multiphase effluent from top to bottom inside the inner tube.

    Method and device for determining the volume of liquid remaining inside a flexible liquid-dispensing pouch

    公开(公告)号:US11874151B2

    公开(公告)日:2024-01-16

    申请号:US17273109

    申请日:2019-06-24

    Applicant: SAIPEM S.A.

    Inventor: Thomas Delaplace

    CPC classification number: G01F13/00 G01F22/00

    Abstract: A process and a device for determining the volume of liquid remaining inside a flexible pouch provided with means for dispensing the liquid to be consumed comprises placing the pouch inside a rigid envelope filled with a known volume V1 of a first measuring liquid having an electrical conductivity C1, during the dispensing of a volume VA of liquid to be consumed, admitting inside the rigid envelope the same volume of a second measuring liquid present outside the rigid envelope and having an electrical conductivity C2 different from the electrical conductivity C1, measuring the electrical conductivity CM of the mixture of the measuring liquids present inside the rigid envelope, determining the volume VA of liquid to be consumed which has been dispensed from the measurement of the electrical conductivity C3, and calculating the volume Vr of liquid to be consumed remaining inside the pouch from the volumes Vi and VA.

    METHOD FOR DETERMINING THE LINEAR AC ELECTRICAL RESISTANCE OF A STEEL PIPE AND DEVICE FOR IMPLEMENTING SUCH A METHOD

    公开(公告)号:US20230384250A1

    公开(公告)日:2023-11-30

    申请号:US18030842

    申请日:2021-10-07

    Applicant: SAIPEM S.A.

    Inventor: Raymond HALLOT

    CPC classification number: G01N27/041 G01N27/025

    Abstract: A method for determining the linear electrical resistance in AC mode of a steel pipeline, including the steps of generating in a portion of the pipeline an induced current by means of an induction coil centered on a longitudinal axis of the pipeline and traversed by an AC current. The coil is housed in a yoke made of ferromagnetic material in order to confine the magnetic field to a predefined surface of the pipeline portion, measuring the active power dissipated by the pipeline portion subjected to the magnetic field, measuring the amplitude of the produced magnetic field, and determining the linear electrical resistance in AC mode of the pipeline portion from the measurements of the dissipated active power and the amplitude of the induced magnetic field. A device is provided for implementing such a method.

    DEVICE AND METHOD FOR JOINING ELEMENTS OF UNDERWATER PIPE FOR TRANSPORTING FLUIDS

    公开(公告)号:US20220134492A1

    公开(公告)日:2022-05-05

    申请号:US17310251

    申请日:2019-11-12

    Applicant: SAIPEM S.A.

    Inventor: Liborio MOCERI

    Abstract: A device for jointing elements of a pipeline for the transport of fluids includes a support structure on which a pipeline section to be jointed is intended to be mounted, two parallel fixed rails, four plates each comprising a first element capable of cooperating with a rail and a second element fixed on the support structure. The first and the second elements of each plate is linked by a first cylinder aligned along a first adjustment axis and a second cylinder aligned along a second adjustment axis, and a system for controlling the cylinders of the plates to achieve movements along the first and second adjustment axes and capable of cooperating with a system for guiding in translation the support structure along the longitudinal axis of the pipeline section to allow jointing of the pipeline section and the pipeline element.

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