Method for liquefying a natural gas, including a phase change

    公开(公告)号:US10107549B2

    公开(公告)日:2018-10-23

    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.

    Device for anchoring a raceway mounting of a seabed-to-surface facility

    公开(公告)号:US09702109B2

    公开(公告)日:2017-07-11

    申请号:US14890863

    申请日:2014-05-12

    Applicant: SAIPEM S.A.

    Abstract: A device and method for anchoring a raceway mounting of a seabed-to-surface facility. The apparatus having a rigid structure immersed in a subsurface by floats and anchored to the sea bottom by tension legs, the device suitable for supporting troughs in a bottom-to-surface connection installation, having a plurality of flexible lines extending to the sea bottom, the flexible lines being supported by the troughs, the trough support structured is connected to a base resting on and/or anchored to the bottom of the sea by a plurality of n tension legs tensioned in parallel, by the float, n being not less than six, each of a plurality of p tension legs from the n tension legs, where p is not less than (n−2) being connected at one of its ends to a distance-varying device secured to the base or to the support structure, the distance-varying device suitable for varying the distance between the support structure and the base.

    Floating Support Anchored On A Reel Comprising A Guide And Deflection Conduit For Flexible Pipes Within Said Reel
    113.
    发明申请
    Floating Support Anchored On A Reel Comprising A Guide And Deflection Conduit For Flexible Pipes Within Said Reel 有权
    浮动支架固定在一个卷轴上,包括用于所述卷轴内的柔性管道的导向和偏转导管

    公开(公告)号:US20160096593A1

    公开(公告)日:2016-04-07

    申请号:US14785546

    申请日:2014-04-17

    Applicant: SAIPEM S.A.

    Inventor: Yann HAJERI

    CPC classification number: B63B21/507 B63B35/44 B63B2035/448

    Abstract: A floating petroleum production support having a turret passing a plurality of flexible first pipes connected to a top platform. The turret includes at least one guide and offset pipe for containing and guiding a flexible first pipe and passing inside the cylindrical internal structure of the turret non-vertically between: a) a bottom wall at a first location (C1) of the bottom wall where the guide pipe is fastened; and b) an internal platform above the bottom wall, the top end of the guide pipe being fastened to the internal platform at a second location (C2) where the top end of the flexible pipe contained in the guide pipe is fastened or is suitable for being fastened, the second location not being in vertical alignment with the first location.

    Abstract translation: 具有通过连接到顶部平台的多个柔性第一管道的转台的浮动石油生产支架。 转塔包括至少一个引导和偏移管,用于容纳和引导柔性第一管,并且非转动地在转塔的圆柱形内部结构内部不间断地通过:a)在底壁的第一位置(C1)处的底壁, 引导管被固定; 和b)位于底壁上方的内部平台,引导管的顶端在第二位置(C2)处紧固到内部平台,其中容纳在导管中的柔性管的顶端被紧固或适合于 被紧固,第二位置不与第一位置垂直对准。

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

    公开(公告)号:US20240091889A1

    公开(公告)日:2024-03-21

    申请号:US18525195

    申请日:2023-11-30

    Applicant: SAIPEM S.A.

    Inventor: Liborio MOCERI

    CPC classification number: B23K37/0533 F16L1/161 F16L1/206 F16L1/207

    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.

    METHOD AND SYSTEM FOR DIRECT ELECTRIC HEATING OF A DOUBLE-WALLED PIPE FOR TRANSPORTING FLUIDS

    公开(公告)号:US20240044434A1

    公开(公告)日:2024-02-08

    申请号:US18491997

    申请日:2023-10-23

    Applicant: SAIPEM S.A.

    Inventor: Raymond HALLOT

    CPC classification number: F16L53/37 F16L59/143

    Abstract: A method and system for Direct Electrical Heating of a Pipe-In-Pipe pipeline for transporting fluids includes mechanically connecting the steel inner shell to the steel outer shell at different intervals of the pipeline, establishing an electrical and thermal insulation between the inner shell and the outer shell, applying an alternating electric current between an outer surface of the inner shell and an inner surface of the outer shell over the entire length of the pipeline so as to heat the inner shell of the pipeline by Joule effect, and placing on the outer surface of the inner shell at least one layer made of resistive and ferromagnetic material so as to increase the ratio of electric power transmitted to the inner shell.

    FACILITY AND METHOD FOR UNDERWATER DISPOSAL OF THE WATER PRODUCED DURING UNDERWATER PRODUCTION OF HYDROCARBONS AT GREAT DEPTHS

    公开(公告)号:US20220220838A1

    公开(公告)日:2022-07-14

    申请号:US17610347

    申请日:2020-04-28

    Applicant: SAIPEM S.A.

    Abstract: A facility for the subsea disposal of the water produced during deepwater hydrocarbon production, includes a subsea oil/water separation station fed with fluids coming directly from at least one hydrocarbon production well, operating at a pressure independent of and lower than the ambient pressure, and comprising an oil outlet for connecting to a production unit and a water outlet, a flat gravity oil/water separation tank resting on the seabed, continuously fed with water leaving the oil/water separation station, operating at a pressure substantially equal to the ambient pressure, and comprising an oil outlet for connecting to the production unit and a water outlet, and a subsea high-pressure pump connected to the water outlet of the oil/water separation station and to a water inlet of the tank to raise the pressure of the water leaving the oil/water separation station to the ambient pressure before it is admitted into the tank.

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