A single wellhead oil-water two-phase flow impedance capacitance water cut measurement device on land surface

Abstract

The invention discloses a land surface single well mouth oil-water two-phase flow impedance capacitance moisture content measuring device. The land surface single well mouth oil-water two-phase flow impedance capacitance moisture content measuring device includes a liquid inlet pipeline, a dynamic impedance measuring system, a static capacitance liquid level measuring system, a liquid outlet pipeline and a drive circuit system; the dynamic impedance measuring system and the static capacitance liquid level measuring system communicate between the liquid inlet pipeline and the liquid outlet pipeline in parallel, the dynamic impedance measuring system is used for measuring the oil-water miscible phase value and the total water value of flowing oil and water, and the static capacitance liquidlevel measuring system is used for measuring a liquid level value of the flowing oil and water; and the drive circuit system is used for determining the moisture content according to the oil-water miscible phase value, the total water value and the liquid level value. According to the land surface single well mouth oil-water two-phase flow impedance capacitance moisture content measuring device, the moisture content of an oil-water two-phase flow complex fluid of a well mouth of an oil well can be measured online in real time.

Description

technical field [0001] The invention relates to the field of water cut measurement, in particular to a land surface single wellhead oil-water two-phase flow impedance capacitance water cut measurement device. Background technique [0002] In my country, due to long-term water injection development, the water content of most oilfields has been rising continuously, and most of them have entered the stage of high water-cut production. According to the current situation of my country's oilfields, it is necessary to study parameters such as water content of oil-water two-phase flow fluid. The measurement of the water content in the oil well production fluid is of great significance for formulating production strategies and prolonging the life of the oil well. [0003] Due to the development of computer technology and network technology in the field of petroleum industry, promoting the digitalization of oilfield production has become the primary development strategy of oilfield co...

AI Technical Summary

Problems solved by technology

However, at present, the conductivity method needs to obtain the dynamic full water phase correction value in the oil well in advance, and cannot realize automatic measurement. The capacitance method is mainly aimed at the dynamic measurement in the case of low water cut, which has high accuracy, and the measurement effect in the high water cut area is extremely poor.

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