AUTOMATED ANALYSIS OF FORMATION FLUIDS UNDER PRESSURE Russian patent published in 2015 - IPC G01N30/88 

FIELD: oil and gas industry.

SUBSTANCE: this invention is related to an automated analysis of formation fluids such as gas-cut (under pressure) raw oil. Analysis of the formation fluid sample includes separation of the formation fluid sample into a flow of a gaseous phase and a flow of a liquid phase. Besides, it includes determination of composition of the gaseous phase flow, measurement of a parameter of the liquid phase flow and determination of volume of components of liquid phase flow at least partially on the basis of the measured parameter of the liquid phase flow. A system for analysis of the formation fluid sample includes measuring vessel (126) having a possibility of receiving a formation fluid sample, phase separator (128) having a possibility of receiving the formation fluid sample from measuring vessel (126) and separating the formation fluid sample into a gaseous phase flow and a liquid phase flow. Besides, the system includes gas chromatograph (134) having a possibility of receiving the gaseous phase flow from phase separator (128) and liquid flow meter (138) having a possibility of detecting the boundary line containing at least one component of the liquid phase flow.

EFFECT: automation of an analysis of a formation fluid sample such as a formation fluid sample under pressure, for example gas-cut oil.

14 cl, 3 dwg