中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

402 records (took 0.03 seconds)

    Method of Making Safe an Undersea Bottom-to-Surface Production Pipe When Production is Stopped
    51.
    发明申请
    Method of Making Safe an Undersea Bottom-to-Surface Production Pipe When Production is Stopped 有权

    公开(公告)号：US20210164312A1

    公开(公告)日：2021-06-03

    申请号：US17171816

    申请日：2021-02-09

    Applicant: SAIPEM S.A.

    Inventor： Stéphanie ABRAND ,  Stéphane Anres ,  Lionel Macauley

    IPC: E21B33/038 ,  E21B33/037 ,  E21B43/013 ,  E21B41/00 ,  E21B43/01

    Abstract: Installation for producing fluid such as crude oil having a floating support having at least two tanks, an undersea bottom-to-surface connection pipe having a first pipe portion on the sea bottom from a well head to the bottom end of a second pipe portion at the floating support, a first auxiliary pipe for transporting gas extending from the floating support to the bottom end of the second pipe, and a plurality of valves for isolating or putting into communication the first auxiliary pipe, for isolating or putting into communication the first production pipe portion and the second production pipe portion, end to end, and suitable for isolating or putting into communication the proximal end of the first production pipe portion and the bottom end either of a fourth auxiliary pipe rising directly to the surface, or a bottom portion of the first auxiliary pipe.

    METHOD FOR ASSEMBLING PIPE-IN-PIPE PIPELINE ELEMENTS FOR TRANSPORTING FLUIDS
    52.
    发明申请
    METHOD FOR ASSEMBLING PIPE-IN-PIPE PIPELINE ELEMENTS FOR TRANSPORTING FLUIDS 有权

    公开(公告)号：US20210054952A1

    公开(公告)日：2021-02-25

    申请号：US16965819

    申请日：2019-01-24

    Applicant: SAIPEM S.A.

    Inventor： Raymond HALLOT ,  Vincent COCAULT-DUVERGER

    IPC: F16L13/02 ,  F16L39/00

    Abstract: A method for assembling pipe-in-pipe pipeline elements for transporting fluids, with each pipeline element comprising an inner pipe including a bulge at one end, and an outer pipe including a recess at one end. The method comprises the successive steps: inserting a first locking wedge axially abutting the bulge of its inner pipe and a corresponding end of its outer pipe, butt-assembling the inner pipe of a new pipeline element on the inner pipe of the pipeline, positioning the outer pipe of the new pipeline element alongside the outer pipe of the pipeline, and butt-assembling the outer pipe of the new pipeline element on the outer pipe of the pipeline by inserting a second locking wedge axially abutting against the bulge of the inner pipe of the pipeline at its free end and the recess of the outer pipe at a corresponding end thereof.

    Method For Assembling Thermoplastic Tubes By Induction Welding
    54.
    发明申请
    Method For Assembling Thermoplastic Tubes By Induction Welding 审中-公开

    公开(公告)号：US20190283338A1

    公开(公告)日：2019-09-19

    申请号：US16347525

    申请日：2017-10-24

    Applicant: SAIPEM S.A.

    Inventor： François-Régis PIONETTI ,  Taoufik MAJDOUB ,  Axel SUNDERMANN ,  Jalil AGOUMI

    IPC: B29C65/00 ,  B29C65/36

    Abstract: A method for assembling two tubes (1, 2) made from thermoplastic materials, that involves welding by heating two applied rotational contact surfaces of two parts of two tubes (1, 2), respectively, arranged end to end or overlapping coaxially (XX′). The method involves induction heating of at least one conductive welding element (4), arranged at the interface (3) between the two contact surfaces, by generating a magnetic field at said conductive welding element or elements, such that the melting of the thermoplastic materials constituting said contact surfaces produces a continuous and sealed weld at said interface on at least one closed loop along the entire perimeter of said interface.

    CLEANING METHOD OF A WATER-FILTRATION SYSTEM UNDER OPERATION
    56.
    发明申请
    CLEANING METHOD OF A WATER-FILTRATION SYSTEM UNDER OPERATION 审中-公开

    公开(公告)号：US20190168166A1

    公开(公告)日：2019-06-06

    申请号：US16314571

    申请日：2016-07-01

    Applicant: TOTAL SA ,  VEOLIA WATER SOLUTIONS & TECHNOLOGIES SUPPORT ,  SAIPEM S.A.

    Inventor： Jérôme ANFRAY ,  Pierre PEDENAUD ,  Graeme SKIVINGTON ,  Thomas DELAPLACE

    IPC: B01D65/02 ,  B01D65/08 ,  C02F1/44

    Abstract: The present invention concerns a method for cleaning a filtration system under operation. The filtration system comprising a hydraulic circuit Cp recycling the permeate stream to the feed side of the membrane and/or a hydraulic circuit Cr recycling the retentate stream to the feed side of said membrane. The method comprises injecting an amount of a chemical product into the filtration system in the hydraulic circuit Cp or in the hydraulic circuit Cr or upstream of the cross-flow filtration membrane, setting the proportion of recycled permeate stream or recycled retentate stream collected in the hydraulic circuit Cp and/or Cr to enable the recycling of a significant amount of unreacted chemical product having passed through said cross-flow filtration membrane to the feed side of said cross-flow filtration membrane, as well as a filtration system for carrying out said method.

    Method of Making Safe an Undersea Bottom-to-Surface Production Pipe When Production is Stopped
    59.
    发明申请
    Method of Making Safe an Undersea Bottom-to-Surface Production Pipe When Production is Stopped 审中-公开

    公开(公告)号：US20180298712A1

    公开(公告)日：2018-10-18

    申请号：US15956104

    申请日：2018-04-18

    Applicant: SAIPEM S.A.

    Inventor： Stéphanie ABRAND ,  Stéphane ANRES ,  Lionel MACAULEY

    IPC: E21B33/038 ,  E21B43/013 ,  E21B33/037

    Abstract: Method of stopping production and making safe an undersea bottom-to-surface connection production pipe having a first pipe portion on the sea bottom from a well head to the bottom end of a second pipe portion extending to a ship or floating support. After stopping production, depressurization of the entire undersea bottom-to-surface connection production pipe is performed. Thereafter, the following steps are preformed: isolating the first production pipe portion from the second pipe portion, and leaving the production fluid in the first production pipe portion, but not in said second pipe portion, depressurizing the first production pipe portion filled with production fluid by reducing the pressure in the first pipe portion and by discharging more completely the gas contained in the production fluid that it contains.

Patent Agency Ranking