公开(公告)号：US20200269165A1

公开(公告)日：2020-08-27

申请号：US16813309

申请日：2020-03-09

Applicant: TOTAL SA ,  SAIPEM S.A ,  VEOLIA EAU - COMPAGNIE GENERALE DES EAUX ,  VWS WESTGARTH LTD

Inventor： Luc RIVIERE ,  Pierre ,  Didier BIGEONNEAU ,  Stéphane ANRES ,  Raymond HALLOT ,  Wayne EVANS ,  David LOTHIAN

IPC: B01D29/66 ,  B01D65/02 ,  B01D61/58 ,  C02F1/44 ,  C02F1/00

Abstract: The invention concerns an underwater water treatment unit which has specific cleaning means which are suitable for cleaning filtration membranes in the unconventional conditions associated with use at great or very great depths, as well as a method for cleaning the membrane of the underwater water treatment unit.

公开(公告)号：US20210180436A1

公开(公告)日：2021-06-17

申请号：US17109777

申请日：2020-12-02

Applicant: SAIPEM S.A.

Inventor： Stéphane ANRES

IPC: E21B43/24 ,  H05B6/44 ,  H05B6/10 ,  E21B43/01

Abstract: A subsea installation for heating a two-phase liquid/gas effluent circulating within a subsea casing, includes a plurality of heated pipe sections which are successively connected to one another by curved pipe sections to form a heating coil, each heated pipe section being inclined with respect to the horizontal at an angle comprised between 2 and 10° in order to promote a distributed flow regime of the two-phase effluent and being provided with an induction heating system.

公开(公告)号：US20180298733A1

公开(公告)日：2018-10-18

申请号：US15956565

申请日：2018-04-18

Applicant: SAIPEM S.A.

Inventor： Stéphanie ABRAND ,  Stéphane ANRES ,  Lionel MACAULEY

IPC: E21B43/01 ,  E21B43/38 ,  E21B43/013 ,  F17D1/16

CPC classification number: E21B43/0107 ,  E21B41/0007 ,  E21B43/01 ,  E21B43/013 ,  E21B43/38 ,  F16L55/46 ,  F17C11/007 ,  F17D1/16

Abstract: Method of stopping and restarting production in 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. When production is stopped, at least the first pipe portion is filled with a depressurized production fluid. Thereafter the following steps are performed: e1) forming a gel from two reagents in a first gel-forming chamber on the sea bottom; e2) sending a quantity of separator gel into the first pipe portion that pushes the cold fluid contained in the first pipe portion to the second pipe portion, prior to closing the first chamber; and then; e3) starting production, the gel forming physical separation and thermal and chemical isolation between firstly the production fluid and secondly a production fluid within the first production pipe portion.

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.