Data collection system for non-contact type detection of submarine pipeline potential distribution

A data acquisition system, non-contact technology, applied in pipeline systems, gas/liquid distribution and storage, mechanical equipment, etc., can solve the problems affecting the accuracy of inspection, inability to conduct large-scale census, and low detection efficiency, and achieve practical The effect of strong performance, strong data acquisition and processing performance, and high reliability

Active Publication Date: 2015-01-07
CHINA NAT OFFSHORE OIL CORP +1
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  • Abstract
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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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  • Data collection system for non-contact type detection of submarine pipeline potential distribution
  • Data collection system for non-contact type detection of submarine pipeline potential distribution
  • Data collection system for non-contact type 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 remote...

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Abstract

The invention discloses a data collection system for non-contact type detection of submarine pipeline potential distribution and relates to the field of data collection systems. The data collection system comprises a communication cable, wherein one end of the communication cable is electrically connected with a data collector arranged on the land, the other end of the communication cable is electrically connected with a matrix type potential sensor arranged under the sea, the matrix type potential sensor monitors submarine pipeline potential and meanwhile transmits pipeline potential data to the data collector through the communication cable, and the data collector processes and displays the data. The data collection system is high in data collecting and processing property, stable in work property, high in reliability, simple in structure, high in practicability, high in popularization and application value, and capable of achieving continuous operations under complicated environment and meeting various requirements during actual 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 Applications(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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