System and method for automatically metering crude oil yield

Abstract

The invention belongs to the technical field of crude oil yield metering, and particularly relates to a system and method for automatically metering crude oil yield. Aiming at solving the problem that manual meter pinching for timing and valve reversing for metering in turn are needed in a crude oil collection process, the following scheme is proposed, the method comprises the following steps that original use hardware is changed, a crude oil turnover liquid level meter is changed into an electromagnetic liquid level meter; through valve execution simulation and automatic test scheme compiling software, a scheme for manually watching the liquid level height, timing and twisting the valve is compiled by using a computer language, and the height of the liquid level meter, time parameters and valve state information are collected to an upper computer database in real time; and the valve is opened or closed according to different liquid level height triggering actions. The system can reduce staff, improve efficiency, liberate manpower and material resources, and grasp field production operation conditions at any time; production and income are increased, and oil well production parameters can be conveniently and timely adjusted through real-time monitoring; and well stopping and personal injury caused by field test of indicator diagrams and liquid levels are avoided.

Description

technical field [0001] The invention relates to the technical field of crude oil output measurement, in particular to a system and method for automatically measuring crude oil output. Background technique [0002] Today, oil production stations are facing four current situations. First, the traditional instruments are complicated. Most of the instruments are old-fashioned or pointer instruments, and the models and types are not uniform. The temperature measurement is a glass tube thermometer, the flow rate is a rotor flow rate, and the liquid level indicator is Float or magnetic flap liquid level, glass tube liquid level, there is a problem of freezing in winter, and manual inspections are used to record various data, and data changes cannot be found in time; secondly, there are many potential safety hazards, and security incidents occur from time to time, such as Remote oil wells are invaded and stolen, oil wells are artificially shut down, crude oil is stolen, etc., and th...

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Problems solved by technology

[0002] Today, oil production stations are facing four current situations. First, the traditional instruments are complicated. Most of the instruments are old-fashioned or pointer instruments, and the models and types are not uniform. The temperature measurement is a glass tube thermometer, the flow rate is a rotor flow rate, and the liquid level indicator is Float or magnetic flap liquid level, glass tube liquid level, there is a problem of freezing in winter, and manual inspections are used to record various data, and data changes cannot be found in time; secondly, there are many safety hazards, and security incidents occur from time to time, such as Remote oil wells are invaded and stolen, oil wells are artificially shut down, crude oil is stolen, etc., and the probability of personal injury is relatively high, such as accidents caused by personnel inspections, and the hazards of toxic and harmful gases; then there is high dependence on manpower, such as inspection control relies on manpower, oil wells The demand for on-duty manpower is large, but the oilfield workers are too young to pick up new employees, and they are not capable enough. A lot of on-site work requires experience accumulation. Finally, the increase in production capacity is poor, and abnormal working conditions cannot be detected in time, such as steam channeling, pipeline blockage, well stuck, valve failure, belt break etc., the oil well parameters cannot be adjusted in time, and the productivity output cannot be guaranteed

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