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Pressure detection device

A detection device and pressure technology, applied in measuring devices, measuring fluid pressure, instruments, etc., can solve the problems of expensive accuracy, unfavorable marketization, and not high enough of pressure transmitters, achieve reliable oil well production operations, and ensure accuracy and stability. sexual effect

Inactive Publication Date: 2016-07-27
MSP DRILEX SHANGHAI
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In other words, high and low pressure pilot valves or pressure transmitters made of conventional stainless steel cannot meet the production requirements
[0006] However, there are currently no high and low pressure pilot valves or pressure transmitters made of materials with high corrosion resistance on the market, or even if there are pressure transmitters with high corrosion resistance, they are very expensive or the accuracy is not high enough, which is not conducive to marketization

Method used

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Embodiment Construction

[0026] Instead of traditional pressure detectors that are directly arranged in the pipeline or directly contact with the working medium in the pipeline in any way, for example, can be configured as pilot valves or pressure transmitters, the present invention combines such pressure detectors 3 with the production pipeline At least one pressure transmitter 2 is arranged between 9.

[0027] The pressure transmitter 2 can be in direct flow communication with the working medium (not further shown), such as gas, in the production pipeline when necessary, so as to effectively transmit the pressure of the working medium in the production pipeline to the A pressure detector 3 located downstream of the pressure transmitter 2 (for example, it can also be a conventional high and low pressure pilot valve or similar device).

[0028] Preferably, the pressure transmitter can hydraulically transmit the pressure to the downstream pressure detector 3 (or it can be called the hydraulic pressure ...

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Abstract

The invention relates to a pressure detection device, and the device is used for detecting the pressure of working fluid in a pipe, and comprises a pressure detector. A pressure transmitter is disposed between the pressure detector and the working fluid in a to-be-detected pipe. The pressure of the working fluid in the pipe can be transmitted to a transmission medium in the pressure transmitter. The pressure detector detects the pressure of the working fluid in the pipe through detecting the pressure of the transmission medium. The device can solve a problem of high anti-corrosion property especially under the working condition of higher contents of H2S and CO2 during the monitoring of the pressure of a well field production pipe.

Description

technical field [0001] The invention relates to a pressure detection device for detecting the pressure of working fluid in a pipeline, especially the pressure of working fluid in a well site production pipeline under highly corrosive gas working conditions. Background technique [0002] Usually, a pressure detection device (such as a pressure transmitter or a high and low pressure pilot valve) is installed at the production pipeline after the throttle valve in the well site to detect the oil delivery pressure of the well site, because when the production pipeline leaks or is blocked Under working conditions, the pressure in the pipeline will be ultra-low or high, and the wellhead needs to be shut down in time to carry out troubleshooting operations and prevent further expansion of the accident. [0003] In the production pipeline H 2 S and CO 2 Under normal working conditions with low content, stainless steel pilot valves or similar pressure transmitters can be directly in...

Claims

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Application Information

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IPC IPC(8): G01L19/06
Inventor 黄河
Owner MSP DRILEX SHANGHAI
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