A shale gas pipeline maintenance method
A technology for transporting pipelines and shale gas, applied in the direction of pipe elements, pipes/pipe joints/pipes, mechanical equipment, etc., can solve problems such as explosion accidents, pipeline leakage, shale gas leakage waste, etc., to improve safety and convenience. Quickly trap leaks and prevent leaks
Inactive Publication Date: 2018-03-27
YANGTZE NORMAL UNIVERSITY
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Problems solved by technology
[0004] The existing shale gas pipeline installation is generally fixed directly on the installation frame with a structure similar to a hoop device, which has poor shock absorption effect, and long-term use may easily cause the pipeline to leak due to long-term vibration and impact
Especially for some aging pipeline sections with long service life, if leakage occurs due to various reasons, it will not only cause waste of shale gas leakage, but also easily lead to explosion accidents
At the same time, when a shale gas pipeline leaks, it is difficult to quickly judge the location of the leak by naked eye observation. Therefore, how to better realize the detection and judgment of the leakage of the shale gas pipeline, so as to facilitate and quickly repair the leak to ensure safety, has become a problem. issues to consider
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[0036] The optimal implementation mode: if Figure 1-3 As shown, a shale gas pipeline maintenance method includes the step of checking and confirming the anti-leakage section of the shale gas pipeline to be maintained. The installation bracket is fixedly installed, and the maintenance is realized by the shock absorption effect produced by the installation bracket on the shale gas pipeline at the same time in the circumferential direction and the axial direction.
[0037] Among them, the method of identifying the anti-leakage section of the shale gas pipeline to be maintained can be determined according to whether the repeated use period of the shale gas pipeline exceeds the preset period, whether there are surface scars and cracks, and whether leaks have been repaired and maintained. After the anti-leakage section of the shale gas pipeline to be maintained is determined, mounting brackets that can produce shock absorption effects in the circumferential and axial directions are...
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The invention discloses a shale gas conveying pipeline maintaining method. The method comprises the step of checking and confirming a shale gas pipeline leakage preventing section to be maintained. The method is characterized in that installing supports are arranged at the two ends of a shale gas pipeline of the shale gas pipeline leakage preventing section for fixation and installation, the damping effect in the circumferential direction and the axis direction is generated for the shale gas pipeline through the installing supports at the same time, and maintaining is achieved. The shale gas conveying pipeline maintaining method has the beneficial effects that the shale gas pipeline can be better protected against leakage, when leakage happens, the pipeline leakage situation can be rapidly and accurately reflected so that rapid leakage repairing can be convenient, and safety is improved.
Description
technical field [0001] The invention relates to the field of shale gas transmission pipelines, in particular to a maintenance method for shale gas transmission pipelines. Background technique [0002] Shale gas refers to the reserves in the shale formation Natural gas resources available for exploitation are a new type of clean energy. my country has abundant shale gas reserves and broad application prospects. [0003] In the transportation process after shale gas mining, various factors will cause the vibration of the pipeline due to the instability of air pressure during the mining process of shale gas, and the high pressure transportation is generally used in the transportation process. It mainly includes pipeline vibration caused by gas column natural frequency, mechanical natural frequency, gas flow pulsation and liquid hammer vibration, and the direction of the gas pipeline during vibration is uncertain. [0004] The existing shale gas pipeline installation is genera...
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IPC IPC(8): F16L55/168
CPCF16L55/168
Inventor 刘合敏
Owner YANGTZE NORMAL UNIVERSITY