Research on Short Wave Attenuation Method for Measuring Water Content in Crude Oil
The traditional method for detecting the water content of crude oil is not satisfactory for detecting the water content of crude oil with high impurities.In order to solve this problem,it is possible to radiate electrical energy in the form of electromagnetic waves into the mixed medium,analyze the differences in short wave absorption ability of oil,water,and other media,and thus achieve the detection of high impurity crude oil water content.Through the comparison experiment of distillation method,density method,and short-wave attenuation method,the on-line measurement principle of the short-wave attenuation method is analyzed in detail,and the relationship between frequency selection and water content is deduced.The measurement structure of crude oil water content based on the on-line principle of short-wave attenuation method is designed,and the results show that the received signal of the short-wave attenuation method is stable,the measurement of high impurity water content of 40%~100%can be achieved with good stability,and the measurement nonlinear error is less than 6%.According to the research results,the short-wave attenuation method is expected to be applied to the on-line measurement of the water content of crude oil high impurities.
short-wave attenuation methodwater content measurementhigh impurityhigh water content