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What are the requirements for pressure sensors in the petroleum extraction industry?
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Industry News
Publish Time:
2020-07-08
The petroleum industry is a precision processing industry with high requirements for the measurement accuracy of pressure sensors. In the control system, the higher the accuracy of the pressure sensor measurement, the more precise the control. The accuracy of pressure sensors in the petroleum industry must reach 0.075% to basically meet the requirements for use.
With the development of the oil and gas industry, China has made great progress in the construction of oil and gas pipelines. Currently, pipeline transportation has become the main mode of oil and gas transportation. 60% of the existing oil and gas pipelines in China have been in operation for about 20 years, and some crude oil pipeline networks in the east have been in operation for more than 30 years. Due to pipeline corrosion and oil theft, many pipelines are severely aged, and pipeline leaks occur frequently, causing energy waste and environmental pollution.
Traditional pipeline leak detection methods are usually based on pressure sensors to collect pressure signals in the pipeline and determine whether the pipeline is blocked or has a leak point through pressure changes. This pipeline detection method needs to transmit and display pressure signals during application. However, when the transmission distance of the pressure signal is long, using traditional pressure detection devices to transmit pressure signals cannot meet the requirements for pressure signal acquisition and processing due to problems such as high background noise and pressure signal attenuation. Therefore, in oil production, stable and reliable pressure sensors are powerful tools to ensure continuous production processes.
Because if measurement errors occur, it may lead to work stoppages, resulting in huge economic losses. Therefore, this is the most basic requirement of the petroleum industry for pressure sensors.
The petroleum industry is a precision processing industry with high requirements for the measurement accuracy of pressure sensors. In the control system, the higher the accuracy of the pressure sensor measurement, the more precise the control. The accuracy of pressure sensors in the petroleum industry must reach 0.075% to basically meet the requirements for use.
Here is a brief description of the working principle of pressure sensors in oil pipelines: The working principle of oil pipeline pressure sensors is that the medium pressure directly acts on the diaphragm of the pressure sensor, causing the diaphragm to produce a micro-displacement proportional to the medium pressure, changing the resistance of the sensor and detecting this change in the electronic circuit, converting and outputting a standard signal corresponding to this pressure. The requirements of the petrochemical industry for pressure sensors far exceed the above requirements, and also include "the type and range ratio of the pressure sensor bus", etc. Compared with increasing the number of pressure sensors, increasing the measurement range is more flexible, which brings great convenience to the design and application process.
The petroleum industry has high requirements for the performance of pressure sensors, and today, most products still rely on imports. Obviously, this is a challenge to the domestic pressure sensor industry.
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