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A data acquisition system for non-contact detection of submarine pipeline potential distribution

A data acquisition system and submarine pipeline technology, which is applied in the pipeline system, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems that affect the accuracy of inspection, cannot conduct large-scale general survey, and low detection efficiency, so as to achieve practicability Strong, data acquisition and processing performance, high reliability

Active Publication Date: 2017-12-05
CHINA NAT OFFSHORE OIL CORP +1
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AI Technical Summary

Problems solved by technology

[0003] At present, the potential distribution of submarine pipelines is generally detected by contact method. Contact measurement needs to clean up the sea mud and marine organisms on the submarine pipeline before operation. The cleaning effect directly affects the accuracy of the inspection, and the workload is large and the detection Low efficiency, unable to carry out large-scale census

Method used

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  • A data acquisition system for non-contact detection of submarine pipeline potential distribution
  • A data acquisition system for non-contact detection of submarine pipeline potential distribution
  • A data acquisition system for non-contact detection of submarine pipeline potential distribution

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Embodiment Construction

[0055] In order to make the purpose, technical solution and advantages of the present invention clearer, the implementation manners of the present invention will be further described in detail below.

[0056] see figure 1 , the data acquisition system for the non-contact detection of the submarine pipeline potential distribution provided by the embodiment of the present invention includes: a data collector 1, the data collector 1 is electrically connected to the underwater matrix potential sensor 3 through a communication cable 2; The potential sensor 3 monitors the potential of the sea pipe, and at the same time transmits the pipeline potential data to the data collector 1 through the communication cable 2 .

[0057] see figure 2 , data collector 1 includes the following components:

[0058] The data collection module 21 is used to collect 12 channels of pipeline potential data, and simultaneously sends the potential data to the ARM core control module 11 through the remot...

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Abstract

The invention discloses a data acquisition system for non-contact detection of submarine pipeline potential distribution, and relates to the field of data acquisition systems. The data acquisition system includes: a communication cable, one end of which is electrically connected to a data set on land collector, the other end of which is electrically connected to a matrix potential sensor arranged underwater, the matrix potential sensor monitors the potential of the sea pipe, and at the same time transmits the pipeline potential data to the data collector through the communication cable, and the data acquisition processed and displayed. The data acquisition and processing performance of the data acquisition system is strong, the work performance is stable, the reliability is high, and the continuous operation in a complex environment is realized; and the structure of the data acquisition system is simple, the practicability is strong, and it has strong promotion and application Value, to meet a variety of needs in practical applications.

Description

technical field [0001] The invention relates to the field of data acquisition systems, in particular to a data acquisition system for non-contact detection of potential distribution of submarine pipelines. Background technique [0002] In some offshore oil / gas fields, there have been incidents of external corrosion and leakage of submarine pipelines due to inadequate cathodic protection. Construction and other problems caused damage to the outer anti-corrosion layer, and it is necessary to evaluate its cathodic protection status irregularly during future operation; CNOOC has nearly 5,000 kilometers of submarine oil and gas pipelines, half of which have been in use for more than 10 years and are in the middle and late service periods. The "12th Five-Year Plan" will also build about 1,500 kilometers of submarine pipelines. Submarine pipelines usually use a combination of coatings and sacrificial anodes for external corrosion protection. As the service life of submarine pipeli...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F17D5/06
Inventor 石卫国胡涛龚胜利金曦梁亮胡富强刘成
Owner CHINA NAT OFFSHORE OIL CORP
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