Equipment for detecting leaks in subsea gas hydrate extraction gas pipelines

Abstract

The invention relates to the technical field of gas leakage monitoring, in particular to a device for detecting the leakage of a gas transmission pipeline for subsea natural gas hydrate exploitation, comprising a subsea track, a deep submersible robot and an underwater acoustic positioning system. The subsea track is fixedly installed on the seabed gas transportation The pipeline extends along the submarine gas pipeline. There are multiple power supply stations equally spaced on the side of the submarine track. The submersible robot is equipped with a power supply unit, a guidance module, an obstacle detection module, an obstacle clearance module, a propulsion module, and a control module. Module and methane sensor; the guidance module, obstacle detection module, obstacle clearance module, propulsion module, control module and methane sensor are all electrically connected with the power supply unit; the device can directly locate the location of the leakage of the submarine gas transmission pipeline, and can provide the staff with Image data for broken pipes.

Description

technical field [0001] The invention relates to the technical field of gas leakage monitoring, in particular to a device for detecting leakage of a gas transmission pipeline for exploiting submarine natural gas hydrate. Background technique [0002] With the continuous increase of submarine pipelines, submarine pipelines have gradually become the lifeline of offshore oil and gas. Due to the complex subsea environment, subsea pipelines are prone to aging and corrosion, resulting in leakage of subsea pipelines. The leakage of submarine pipelines will pollute the environment on the one hand, and cause economic losses on the other hand, and even more serious casualties. Therefore, leakage monitoring of submarine pipelines has become an increasingly urgent technical problem to be solved. [0003] There are many studies on land pipeline leakage monitoring technology in China. The main methods are negative pressure wave method and sound wave method. Because negative pressure wave ...

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Problems solved by technology

[0005] The system disclosed in this patent calculates the leakage position of the pipeline through the data. However, the seabed is complex, the undercurrent is surging, and the ecological circle is vast. There are many factors that affect the sensor data. It is difficult to calculate the pipeline leakage by relying on the formula summed up in the laboratory. the precise location of

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