| 摘要 |
<p>The oil and gas production system using a subsea low-pressure separator of the present invention comprises: a subsea low-pressure separator, into which the well fluid extracted from a subsea well flows and in which the well fluid is separated into a water component, a petroleum component and a gas component; a floating body disposed on the water surface to float, connected through the subsea low-pressure separator and a gas separator riser, and supplied with the gas component located inside the subsea low-pressure separator through the gas separator riser; a pressure control valve located in the gas separator riser for controlling the internal pressure of the subsea low-pressure separator, and for keeping the interior pressure lower than the surrounding sea water; a subsea petroleum storing part located in the subsea for storing separated petroleum in the subsea low-pressure separator, and characterised by having the same interior pressure as the surrounding sea water; a petroleum separator pump for moving the oil component separated in the subsea low-pressure separator into the subsea petroleum storing part; and a produced water separator pump for discharging the water component separated in the subsea low-pressure separator to the outside.</p> |
