Multi-phase petroleum stream monitoring system and method.

摘要

A multi-phase petroleum stream is stratified by causing it to flow down an inclined pipe (7) at a predetermined angle to the horizontal. The stratified stream flows into a gas trap (14) from which the liquid discharges by a liquid exit pipe (21,32) which is connected to a downstream section (38) of the pipeline. A gas accumulator (44) is connected to the stratifying pipe (7) and to the gas trap (14) and collects the gas from them. A gas discharge pipe (70,74) is connected to the accumulator and to the downstream section of the pipeline and allows the gas to flow from the accumulator to the pipeline. A gas flow rate meter (100) is connected to the gas discharge pipe and provides a signal representative of the gas flow rate. A liquid flow rate meter (105) is connected to the liquid discharge pipe and provides a liquid flow rate signal. A percentage water content meter is connected to the liquid discharge pipe and provides a signal representative of the percentage water content of the liquid discharging from the trap.