Differential Pressure Transmitter Applied in Oilfield Single Well Oil Extraction

Date: 2022-Mar-31


During the crude oil extraction process of a single well in an oil field, the inconsistent water content is mainly due to the different water content in the discharged oil. Inconsistent water content affects the accuracy of crude oil density measurement during nuclear production measurement.

To overcome this challenge, an automated and intelligent method was adopted to analyse and process the dissolved gases present in the crude oil in the metering pipeline. That is, the density of a gas mixture can be accurately determined without separation or degassing, thereby accurately measuring crude oil production.

single well oil extraction



• The measurement medium, a high-temperature, high-viscosity oil-water combination, exhibits corrosive properties.

• 0.5% FS accuracy with good stability.


To address the range of problems associated with the high temperatures, high viscosity and corrosive nature of oil-water mixtures, a suitable solution is the implementation of the MDM3051K-LP series differential pressure transmitter. The transmitter features a double-flanged capillary tube to minimise interference caused by media characteristics. It is tailored for the accurate measurement of pressure differentials in a sealed environment.


• Calculating the crude oil density value follows the principle P = ρgh.

• In order to mitigate the effects of the medium's high viscosity and temperature, the differential pressure is measured using a vertically fixed length pipe.

• The measurement range is adapted to align with the predetermined length of the fixed pipe.

• The accuracy achieved is 0.5% FS.

flanged differential pressure transmitter

Subsequent to performing tests on the pipeline valves and a variety of components, the measurement data obtained is confirmed to be accurate and meets the desired results at the specific site.



intelligent remote differential pressure transmitter

MDM3051K-LP Intelligent Remote Differential Pressure Transmitter

•  0.5% FS accuracy, high stability

• The medium won’t contact with the transmitter directly; high-temperature resistance, anti-corrosion, high viscosity

• Online adjustable


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The specific solution for measuring the differential pressure transmitter needs to refer to the actual situation. Our technical team will provide you with the best product solution according to the site environment. Don’t hesitate to contact us.

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