Crude oil automatic sampling and moisture content determining instrument

Abstract

The invention discloses a crude oil automatic sampling and moisture content determining instrument. The determining instrument comprises an automatic sampling part and a distillation device; the automatic sampling part comprises a circulating pump, a sampler and a bypass oil pipe; the bypass oil pipe communicates with a main oil pipe through an oil inlet and an oil return port, and the oil inlet, the circulating pump, a filter, the sampler and the oil return port successively communicate with one another through the bypass oil pipe; the sampler is provided with a sampling pump; the sampling pump communicates with the bypass oil pipe and also communicates to a sampling container; the bottom of the sampling container is provided with a first motor-operated switch; the sampling container communicates to the distillation device through an oil discharge pipe; the distillation device is provided with an oil return pipe; the oil return pipe communicates with the bypass oil pipe; the distillation device is also provided with a measuring device; the circulating pump, the sampling pump, the distillation device, the measuring device and the first motor-operated switch are electrically connected to a controller. The determining instrument can automatically sample and measure the moisture content through a distillation method, achieves full-automatic integration of sampling and measurement, has no human factor error, and has the effect of high measuring accuracy.

Description

technical field [0001] The invention relates to a crude oil online detection device, in particular to a crude oil automatic sampling and water content measuring instrument. Background technique [0002] In the process of oil production, the water content of crude oil is an important production and economic indicator. Keeping track of changes in the water content of crude oil is very important for dynamic analysis of oil wells, working conditions, and grasping the quality of crude oil exported. [0003] At present, moisture monitoring probes are generally installed on oil pipelines. Since most oil wells in my country have low fluid production and high gas content, the crude oil cannot fully contact the monitoring probes, resulting in inaccurate monitoring results. However, the distillation assay method has high measurement accuracy. However, there are problems such as poor sampling representativeness, many distillation and testing procedures, and large human influence factors....

AI Technical Summary

Problems solved by technology

[0003] At present, moisture monitoring probes are generally installed on oil pipelines. Since most oil wells in my country have low fluid production and high gas content, the crude oil cannot fully contact the monitoring probes, resulting in inaccurate monitoring results. However, the distillation assay method has high measurement accuracy. However, there are problems such as poor sampling representativeness, many distillation and testing procedures, and large human influence factors.

At the same time, the crude oil water content on-line tester and crude oil on-line sampler are separate devices, which need to be drilled repeatedly on the oil pipeline and installed separately

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