A ROV-based submarine pipeline detection system and its working method

Abstract

The invention relates to an ROV-based submarine pipeline detection system and its working method, which includes an on-shore display and control platform, an underwater communication system and an optical fiber communication module; the underwater communication system includes an ROV aircraft and an underwater vehicle mounted on the ROV aircraft Under the control of the display and control platform on the shore, the ROV vehicle cruises underwater according to the preset cruising trajectory, and at the same time controls the status of the video recording equipment and imaging sonar equipment; The recording equipment collects the video data during the cruising process and sends them to the underwater digital optical transceiver; the imaging sonar equipment detects the sonar during the cruising process of the aircraft, and sends the detection data to the underwater digital optical transceiver; After the signal is converted, it is transmitted to the onshore display and control platform, which displays and processes the received data. The invention can be widely used in the field of pipeline detection.

Description

technical field [0001] The invention relates to an ROV-based submarine pipeline detection system and a working method thereof, belonging to the technical field of communication and information. Background technique [0002] The submarine pipeline is the main artery of offshore oil and gas field production, and the intrinsic safety of the submarine oil and gas pipeline system is an important basis for ensuring the smooth exploitation of offshore oil and gas. Integrity detection of submarine pipelines is very important to the safe operation of pipelines. With the development of oil exploration into deep water, the introduction and development of deep water pipeline detection technology has become an irresistible trend. [0003] In recent years, based on the submarine pipeline inspection technology capability of the corrosion detection ROV vehicle, the regular detection of the external state and damage of the submarine pipeline has become the main measure for the detection of t...

AI Technical Summary

Problems solved by technology

However, traditional corrosion detection ROV vehicles usually use coaxial cables for information transmission. The signal transmission speed is slow and the transmission distance is short. At the same time, the control cable also undertakes the task of supplying power to the ROV vehicle, so it is heavy, bulky and complex in structure. , is not conducive to release, and the cable has high resistance and poor flexibility underwater. When the ROV vehicle dives deep, the cable will interfere with the movement of the ROV vehicle, which is not conducive to the underwater operation of the ROV vehicle. At the same time, the thick The underwater cable is also easily hindered by accidental winding in complex obstacle environments

[0004] In addition, since the main operation scenario of the corrosion detection ROV is to enter the jacket of the drilling platform for corrosion detection operations, the operation range is small and the movement speed is slow, it is difficult to locate the ROV vehicle underwater through inertial navigation

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