Submarine pipeline detection apparatus and detection method thereof

A technology for submarine pipelines and detection devices, which is applied to measurement devices, material analysis by electromagnetic means, instruments, etc., can solve the problems of single, backward technology, lack of technical means, etc., and achieve accurate detection, long detection distance, and low detection cost. Effect

Inactive Publication Date: 2015-02-25
BC P INC CHINA NAT PETROLEUM CORP +2
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Problems solved by technology

According to statistics, about 50% of the failure accidents of submarine pipelines are caused by corrosion, and the corresponding one is the corrosion detection of submarine pipelines—especially the single and backward technology of external corrosion detection methods
[0003] At present, the external inspection of submarine pipelines mainly focuses on routine inspections such as pipeline routing, suspension spans, and surrounding support conditions. Corrosion information such as the extern

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  • Submarine pipeline detection apparatus and detection method thereof

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Embodiment 1

[0021] Embodiment 1: as figure 1 as shown,

[0022] A submarine pipeline detection device, which is used to detect the submarine pipeline routing, buried depth, external anti-corrosion layer status and cathodic protection status, including: an underwater motion carrier 100, a sensing device 200 and a control terminal 300. The sensing device 200 is installed on the underwater motion carrier 100, and is used to obtain the route and buried depth of the submarine pipeline, the pipeline-ground potential, the potential gradient along the pipeline, underwater video data, and the underwater depth and attitude information of the underwater motion carrier 100, And hand it over to the control terminal 300. The control terminal 300 controls the underwater movement of the underwater vehicle 100, and receives and processes the pipeline routing, buried depth, potential, underwater video, device underwater depth and posture information, and obtains the status of the cathodic protection of th...

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Abstract

The invention relates to a submarine pipeline detection apparatus and a detection method thereof, and belongs to the technical fields of submarine pipeline routing, and external anticorrosive coating and the cathodic protection state detection. The apparatus comprises an underwater motion carrier, a perception device and a control terminal; the perception device is arranged on the underwater motion carrier; the control terminal is connected with the underwater motion carrier and the perception device; the underwater motion carrier adopts an underwater impeller propeller; the perception device comprises a pipeline routing detection probe, a potential measurement electrode, a lighting lamp, a camera, a pressure sensor and an attitude indicator; and the pipeline routing detection probe is arranged at the front end of a frame, the potential measurement electrode is arranged on the side elevation of the frame, the lamp and the camera are hoisted at the front end of the lower surface of the top plate of the frame, the pressure sensor is arranged in a sealed cabin, the probe contacts with seawater, and the attitude indicator is arranged on the flattened plane in the sealed cabin. The apparatus and the method have the advantages of no excavation in the detection process, long detection distance, accurate detection and low detection cost, and are suitable for the whole line detection of the submarine pipeline.

Description

technical field [0001] The invention relates to a detection device and a detection method of a submarine pipeline, and belongs to the technical field of detection of submarine pipeline routing, outer anti-corrosion layer and cathodic protection state. Background technique [0002] In recent years, with the continuous development of offshore oil, the number of submarine pipelines responsible for offshore oil and gas transportation has continued to increase, and failure accidents of submarine pipelines have also shown an increasing trend year by year. According to statistics, about 50% of the failure accidents of submarine pipelines are caused by corrosion, and the corresponding one is the corrosion detection of submarine pipelines—especially the single and backward technology of external corrosion detection methods. [0003] At present, the external inspection of submarine pipelines mainly focuses on routine inspections such as pipeline routing, suspension spans, and surround...

Claims

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Application Information

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IPC IPC(8): G01N27/00
Inventor 王志涛韩文礼林竹范云鹏周冰张盈盈郭继银
Owner BC P INC CHINA NAT PETROLEUM CORP
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