| 摘要 |
A method and a sea-based installation for handling/processing hydrocarbons which are recovered from subsea wells (10) and transported up to the installation comprising a surface vessel etc, have been explained. The well flow is separated in to steps in a manner known in itself, and gas separated in the first separating step (14) is compressed in a compressor (40) connected to a multi-passage umbilical (36) which returns said separated gas to the annulus (34) of the subsea well for re-injection into the reservoir (22). The separator (14) of the first step is equipped with a pressure regulator (18) for the setting and adjusting of the working pressure of the separator (14), so that the pressure is kept at a value ensuring that the amount of residual gas in the oil separated in the separator (16) of the second separating step essentially corresponds to the amount of fuel gas necessary for driving the processing plant of the installation on surface and seabed levels, incorporated underwater components and components at surface level.
|
