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Electronic pressure measuring apparatus for use in oil field hydraulic monitoring system

A technology of pressure measuring device and monitoring system, which is applied in measurement, wellbore/well components, earth-moving drilling, etc., can solve problems such as affecting normal work, damage, easy freezing, etc., and achieves the goal of improving work efficiency and reducing work intensity. Effect

Inactive Publication Date: 2003-06-11
王连红
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AI Technical Summary

Problems solved by technology

Since this hydraulic monitoring system uses a pressure gauge as its pressure measuring device, it inevitably has the following main problems during use: 1. During winter use, the measured water or water-containing crude oil entering the pressure gauge is easy to freeze, thereby Affect its normal work, or even be damaged; 2. The manufacturing accuracy of the pressure gauge is low, and the measurement error is relatively large. The error is usually not less than 1.5%, so the measurement result is not accurate enough; The hydraulic monitoring system implements remote centralized monitoring and management, which makes it difficult to improve the efficiency of hydraulic monitoring and management
However, so far, it has not been directly applied to the hydraulic monitoring system in the field of oil field.

Method used

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  • Electronic pressure measuring apparatus for use in oil field hydraulic monitoring system
  • Electronic pressure measuring apparatus for use in oil field hydraulic monitoring system
  • Electronic pressure measuring apparatus for use in oil field hydraulic monitoring system

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Embodiment Construction

[0014] figure 1 It is a specific structural form when the electronic pressure measuring device is used as the pressure measuring device of the oilfield hydraulic monitoring system and independently constitutes the system. It can be seen from the figure that the system, that is, the electronic pressure measuring device, is composed of a pressure sensor 2 and a measuring instrument 1 respectively.

[0015] The specific structure of the pressure sensor is as follows: figure 2 As shown, it is mainly composed of a shell, a deformable body assembly 4, a circuit board 7, a signal output terminal and a power input terminal socket 12, and two sets of wires 5,8. The shell is composed of coupling sleeve 3, pipe body 6, seat cover 9 and protective cover 11 respectively. Wherein, the coupling sleeve, the pipe body, and the seat cover are welded together, and the protective cover forms an openable hinged connection between the hinge support 10 and the seat cover 9 . A tightening device ...

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Abstract

The invention discloses a new use of electron press testing equipment in oil field liquid press testing system, its character lies in that it uses the electron press testing equipment as the press testing system in oil field. The measuring result is more accurate. It also provides the condition for remote monitor. The parts which are immersed in liquid are set in press-accessing cavity, so the monitor system can work in winter.

Description

technical field [0001] The invention relates to the use of an electronic pressure measuring device, specifically the application of the electronic pressure measuring device in an oilfield hydraulic monitoring system. Background technique [0002] In the field of oil field, people often use the hydraulic pressure monitoring system, that is, the liquid pressure monitoring system. For example, water pressure monitoring system for water injection well casing, oil pressure monitoring system for pumping well casing or oil pipeline, etc. This type of hydraulic monitoring system usually consists of control valves and pressure measuring devices, sometimes, it can also be composed of pressure measuring devices only. For a long time, the pressure measuring device of this system generally consists of a pressure gauge. When used and installed, the system is set on the pressure-taking port of the pipe fitting or container used to hold the liquid to be tested, that is, the output port of...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): E21B47/06
Inventor 刘军莉
Owner 王连红
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