Crude oil moisture content monitoring system

Abstract

The invention discloses a crude oil moisture content monitoring system, comprising a crude oil separation monitoring device, a PLC controller, a wireless communication device and a collection displayterminal, wherein the crude oil separation monitoring device comprises an outer shell, a crude oil pipeline connecting pipe is arranged on an upper surface of the outer shell, a lower port of the crude oil pipeline connecting pipe is connected with a crude oil temporary storage tank arranged in the outer shell, the bottom of the crude oil temporary storage tank is connected with an oil-water separator through a connecting pipe, the bottom of the oil-water separator is connected with a water outlet pipe and an oil outlet pipe penetrating through the outer shell, the lower port of the water outlet pipe is connected with a water storage tank, and turbine flow sensors are installed in the lower port of the crude oil pipeline connecting pipe and the lower port of the water outlet pipe. The crude oil moisture content monitoring system disclosed by the invention can automatically and conveniently monitor and calculate the moisture content in crude oil in an oil well.

Description

technical field [0001] The invention belongs to the technical field of petroleum drilling, and in particular relates to a monitoring system for the water content of crude oil. Background technique [0002] The single well production and water cut change of an oil well is one of the most important basic data in oilfield development. At present, the single well production of non-pipeline transportation in various oilfields has been relying on manual measurement, manual sampling and testing, which is difficult to manage and seriously distorted. The analysis of various technical solutions is separated from the actual production, and the effects of various technical measures are difficult to correctly evaluate, which seriously affects the technical progress and long-term development of the oilfield. [0003] The main factors of data distortion of traditional measurement methods are: [0004] 1) The oil sample taken from the sampling port of the oil well is the oil sample that fl...

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Problems solved by technology

[0004] 1) The oil sample taken from the sampling port of the oil well is the oil sample that flows through the standpipe instantaneously, and the water content in the pipe changes greatly during a filling cycle, and the oil sample taken cannot fully represent the actual water content of the oil well;

[0005] 2) Use a cross-section sampler to sample the cross-section of the wellhead oil storage tank, and the samples taken are accurate, but the liquid level in the tank is required to be high, which is difficult to achieve in low-yield oil wells, and the labor intensity of the workers is high, and there is a possibility of artificial fraud in long-term operation;

[0007] 4) The liquid level in the oil storage tank is not smooth in winter, and the error of the liquid level measured manually is large;

[0009] The above factors determine the objective fact that the current oil well measurement is inaccurate

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