System for detecting water content in crude oil of oil field united station

A detection system and moisture content technology, applied in the direction of measuring devices, specific gravity measurement, instruments, etc., can solve problems such as poor reliability

Active Publication Date: 2016-05-04
永春县产品质量检验所福建省香产品质量检验中心国家燃香类产品质量监督检验中心福建
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Problems solved by technology

However, on the one hand, such correction needs to add temperature sensors and correction algorithms. On the other hand, it cannot be reliably corrected for changes in crude oil density c...

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  • System for detecting water content in crude oil of oil field united station
  • System for detecting water content in crude oil of oil field united station
  • System for detecting water content in crude oil of oil field united station

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Embodiment Construction

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the drawings that need to be used in the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only These are some embodiments of the present invention. For those skilled in the art, other drawings can also be obtained according to these drawings without any creative effort.

[0020] see figure 1 , After the water-containing crude oil enters the settling tank, due to its different density, it is divided into low water-containing crude oil layer, emulsified layer and water layer from high to low by gravity. For the water content distribution of each layer after the water-bearing crude oil is stratified figure 2 , the water content in the water layer changes dramatically, and the water content of the emulsified layer also changes significantly. With ...

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Abstract

A system for detecting the water content in crude oil of an oil field united station comprises a settling tank, a stepping pressure sensor and a processing system, wherein the processing system comprises a density determination unit used for determining the density of each altitude based on the pressure information of each altitude, a layering determination unit used for determining the altitude of a low-water-content crude oil layer based on the density of each altitude, a low-water-content crude oil layer stable point determination unit used for determining stable points in the low-water-content crude oil layer at continuous altitudes, a crude oil real-time concentration determination unit used for determining the real-time concentration of crude oil based on the pressure and altitude data of the stable points, a preset stable point water content and water density, and a crude oil water content determination unit used for determining the water content of crude oil at each altitude in the settling tank based on the real-time concentration of crude oil, the water density of an oil field and the pressure information of each altitude in the settling tank.

Description

technical field [0001] The invention relates to the technical field of crude oil detection. Background technique [0002] For crude oil, in the process of exploitation, dehydration, measurement, gathering, transportation and sales, crude oil production and crude oil water content are the most important indicators. The water cut test error directly affects the dynamic analysis of oil wells and oil layers, destroys the electric field in the electric dehydrator, reduces the dehydration effect, and causes a lot of energy waste for crude oil gathering and transportation. Therefore, online detection of crude oil water content is very important. In the process of crude oil production, the real-time and accurate measurement of water content is still one of the difficulties in detection technology; due to the water, sediment and high viscosity of crude oil, especially in cold regions, the measurement accuracy and service life of contact measuring instruments are very important. Grea...

Claims

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Application Information

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IPC IPC(8): G01N9/36
CPCG01N9/36
Inventor 韩少鹏
Owner 永春县产品质量检验所福建省香产品质量检验中心国家燃香类产品质量监督检验中心福建
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