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

A technology for vertical displacement of oil and gas pipelines, which is applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc. It can solve problems such as high-cold permafrost areas that cannot be buried in the ground and cannot be used in extreme low temperatures, and has broad application prospects Effect

Active Publication Date: 2012-07-11
PIPECHINA SOUTH CHINA CO
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Problems solved by technology

And because it can't be buried, it can't be used in the high-cold permafrost area with extremely low temperature

Method used

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  • System for automatically monitoring vertical displacement of oil and gas pipeline in frozen soil region
  • System for automatically monitoring vertical displacement of oil and gas pipeline in frozen soil region
  • System for automatically monitoring vertical displacement of oil and gas pipeline in frozen soil region

Examples

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Embodiment Construction

[0033] Example. This example is a monitoring system, and the test was carried out in the Mohe-Jagdaqi section of the China-Russia crude oil pipeline. The test section is a permafrost swamp area. 2.0m. The automatic monitoring method and device for the vertical displacement of the pipeline in the permafrost region are as follows: figure 1 Shown, by reference pile 8, the piezometer 9 that is fixed on the reference pile, the piezometer 16 that is fixed on pipeline monitoring point, liquid communication pipe 7, liquid tank 15, data line 11, data collector 13, field data The remote transmission module 12, the storage battery 14, the sealed buried box 16, the data remote transmission device 19 and the data processing server 20 located in the room are composed. Both piezometer I 6 and piezometer II 9 are vibrating wire piezometers with a range of 70KPa and an accuracy of 0.1% FS (one-thousandth full scale); the data acquisition device 13 is a vibrating wire reading instrument; Pil...

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Abstract

The invention provides a system for automatically monitoring vertical displacement of an oil and gas pipeline in the frozen soil region. The system is characterized in that a pipeline (4) is embedded in a mobile layer (3) under a ground (2); a plurality of monitoring points or monitoring sections for installing pipe clamps (5) respectively provided with one osmometer I (6) are arranged on the pipeline (4); the osmometers I (6) are connected with a liquid tank (15) by a liquid communicating pipe (7) and is connected with a data acquisition unit (13) by an osmometer data line (11); a data remote transmission device (12) is used for transmitting data to a data remote transmission device (19) located indoors (21) in real time via a cell phone signal GPRS (general packet radio service) (17) ora satellite (18), and the output of the data remote transmission device (19) is connected with a data processing server (20); a long-time stable reference point of a reference peg (8) is arranged in a stability region near the pipeline (4); and an osmometer II (9) is installed on the reference peg (8). The system is suitable for large-range automatic monitoring of vertical displacement of the oiland gas pipeline in the frozen soil region in large-fall regions.

Description

technical field [0001] The invention relates to an automatic monitoring system for the vertical displacement of an oil and gas pipeline in a permafrost region. It relates to the technical field of piping systems. Background technique [0002] With the development of my country's energy pipelines, pipelines are gradually being laid in permafrost regions, such as the Sino-Russian crude oil pipeline Mohe-Daqing crude oil pipeline (hereinafter referred to as the Mohe-Daqing pipeline), which encountered complex permafrost disasters, which seriously affected the safety of the pipeline. [0003] There are more than 60 years of history of building and operating pipelines in permafrost regions abroad. They have carefully considered the permafrost problem and taken a lot of preventive measures, but it is still inevitable that a large number of accidents caused by frost heaving and thawing have occurred. Permafrost continued to thaw and settle along the pipeline, resulting in a melti...

Claims

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Application Information

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IPC IPC(8): F17D3/01
Inventor 荆宏远韩冰马云宾李亮亮谭东杰蔡永军郝建斌吴张中冯庆善陈朋超
Owner PIPECHINA SOUTH CHINA CO
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