Method and system for automatically monitoring vertical displacement of oil and gas pipeline in frozen soil region

Abstract

The invention provides a method and a system for automatically monitoring vertical displacement of an oil and gas pipeline in the frozen soil region. The method is characterized in that a long-time stable monitoring reference point is arranged outside a pipe trench; a plurality of monitoring points are arranged on a pipe body; osmometers are fixed in the reference point and the monitoring points on the pipe body and are connected to a liquid tank by a liquid communicating pipe; the osmometer fixed in the reference point is used for measuring the liquid pressure in the position of the osmometer fixed at the reference point, the osmometers in the monitoring points are used for measuring the liquid pressure of the elevations on which the osmometers in the monitoring points are located and the elevation differences between the reference point and the monitoring points are calculated; when a pipeline sinks or uplifts, the new elevation differences are calculated by measuring the liquid pressure, thus calculating pipe elevation variation; and pipeline elevation variation in each monitoring point can be obtained by periodically measuring the liquid pressure in the reference point and each monitoring point by the osmometers. The method and the system are suitable for large-range automatic monitoring of vertical displacement of the oil and gas pipeline in the frozen soil region in large-fall regions.

Description

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AI Technical Summary

Benefits of technology

Invention describes a new way to monitor pipe movements accurately over long distances while being able to detect any deformation caused during movement or submergence. Unlike previous methods which were only effective when there was no significant change detected, these techniques are more efficient because they use less expensive sensors instead of constantly checking them out. Additionally, some devices have been developed where their own components may still work properly even if exposed to severe environments such as frost conditions. Overall, this technique allows for better management efficiency and cost savings compared to current technologies.

Problems solved by technology

The technical problem addressed in this patented text relates to improving the protection against pipe failures during permafrestate weather conditions where piles may fall over without causing significant harm. Current solutions involve manually inspection and replacement of pipes underground, which takes time and resources. Additionally, existing automated systems only provide limited monitoring capabilities and require expensive sensors.

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