US 8,282,711 B2Granted

Subsea installation and method for separation of liquid and gas

AssigneeFMC Kongsberg Subsea AS

InventorsJens Grenstad, Marit Mork, Odd Marius Rosvold, Magnus Bernt

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Abstract

The present invention relates to a subsea installation for treatment of hydrocarbons from a subsea well, having a pipe system comprising a first manifold (2) connected to at least one well (1) and at least two first pipe segments (3) with an inlet connected to the manifold (2) and where the first pipe segments (3) comprise at least two outlets, where the first manifold (2) and the first pipe segments (3) are arranged in a first plane and where one of the outlets from the first pipe segments leads to a second manifold (7). According to the invention a second of the outlets from the first pipe segments (3) leads to at least two second pipe segments (9) arranged in a second plane and where at least one of the outlets forms an inlet to the second pipe segments (9), where the second pipe segments (9) comprise at least one outlet leading to a third manifold (12).

Claims12

Dependent claims

A subsea installation for separation of hydrocarbons from a subsea well, the installation comprising:

a first manifold which is connected to at least one well;
at least two first pipe segments which are each connected to the first manifold, the first manifold and the first pipe segments being arranged in a first plane;
at least two second pipe segments which are arranged in a second plane located below the first plane;
each first pipe segment comprising a first outlet which is connected to a second manifold and a second outlet which is connected to a corresponding second pipe segment;
each second pipe segment comprising an upstream-most inlet which is connected to a second outlet of a corresponding first pipe segment and at least one third outlet which is connected to a third manifold;
wherein the longitudinal axis of the first manifold is substantially perpendicular to the longitudinal axes of the first pipe segments and the first pipe segments are arranged with their longitudinal axes substantially parallel.

3 more elements

Dependencies are inferred from the claim text.