公开(公告)号：US20170044838A1

公开(公告)日：2017-02-16

申请号：US15305963

申请日：2015-04-20

Applicant: SAIPEM S.A.

Inventor： François Régis PIONETTI ,  Nicolas CHAZOT ,  François LIROLA ,  Cédric BRUGUIER

IPC: E21B17/01 ,  E21B19/22

CPC classification number: E21B17/017 ,  E21B19/09 ,  E21B19/22

Abstract: A method of installing and implementing a rigid tube (10) referred to as a “main” tube, wherein the following steps are performed: a) lowering an end of the main tube from a floating support or vessel (13) on the surface (14) to below sea level (14) to be connected to undersea equipment (16) that is immersed (17); and b) maintaining the main tube as immersed in this way for a given period of time. The said main tube (10) is caused to pass through a cylindrical orifice (4) of circular section in a stress limiter device, the orifice having a slippery internal coating (3) secured to a support structure (9) secured to the floating support or vessel, the service tube thus being suitable for sliding in contact against the slippery coating during steps a) and b).

Abstract translation: 一种安装和实施称为“主”管的刚性管（10）的方法，其中执行以下步骤：a）从表面上的浮动支撑件或容器（13）降低主管的端部（ 14）到海底（14）连接到浸没的水下设备（16）（17）; 和b）将主管以这种方式保持一段给定的时间。 使所述主管（10）通过应力限制装置中的圆形截面的圆柱形孔（4），所述孔具有固定到固定到浮动支撑件的支撑结构（9）的光滑的内部涂层（3） 或容器，因此在步骤a）和b）期间，所述服务管适合于滑动地接触所述光滑涂层。

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.

Inventor： Carlos Alberto CAPELA MORAES ,  Raymond HALLOT ,  Nicolas CHAZOT

IPC: E21B43/36 ,  E21B41/00 ,  B01D17/02 ,  B01D21/02 ,  B01D21/24 ,  C02F1/40

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.