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Device and method for determining the deformation position of a pipeline

A technology for determining a deformation position and a device, which is applied in the field of a device for determining a deformation position of a pipeline, and can solve problems such as low detection efficiency of a deformation position of a pipeline

Active Publication Date: 2020-09-15
PETROCHINA CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0005] The application provides a device and method for determining the deformation position of a pipeline, which can solve the problem of low detection efficiency of detecting the deformation position of the pipeline by using a pig in the related art

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  • Device and method for determining the deformation position of a pipeline
  • Device and method for determining the deformation position of a pipeline
  • Device and method for determining the deformation position of a pipeline

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Embodiment Construction

[0054] In order to make the object, technical solution and advantages of the present invention clearer, the implementation manner of the present invention will be further described in detail below in conjunction with the accompanying drawings.

[0055] As long-distance transportation equipment for gas, oil and other media, pipelines are laid on land and in the sea. Safety is the most basic condition for pipeline operation. Therefore, in all stages of pipeline planning, construction, operation and maintenance, safety measures must be taken in accordance with relevant regulations to ensure that pipelines will not leak prematurely during operation. For the pipeline leakage during the pipeline operation, the staff need to find the pipeline leakage problem in time when the pipeline leaks in the early stage, and take corresponding measures to repair the pipeline to prevent the expansion of the leakage.

[0056] During the laying process of oil and gas pipelines, due to external forc...

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Abstract

The invention discloses a device and a method for determining the deformation position of a pipeline, and relates to the field of pipeline detection. The device may include an in-pipeline detector (10) and a detector (20). The detector (20) can comprise a rolling wheel (202), a measuring wheel (203) and a magnetic sensor (204), the rolling wheel (202) is fixedly connected with the measuring wheel(203), and the magnetic sensor (204) can detect the magnetic induction intensity with the measuring wheel (203). The in-pipeline detector (10) can determine the position of the deformed part of a pipeline according to the change times of the magnetic induction intensity detected by the magnetic sensor (204) and the diameter of the rolling wheel (202). By means of the device provided by the invention, the deformation position of the pipeline can be determined only by operating the device once, so that the device for determining the deformation position of the pipeline provided by the inventionis relatively high in efficiency, relatively low in cost and relatively high in detection precision when being used for determining the deformation position of the pipeline.

Description

technical field [0001] The present application relates to the field of pipeline detection, in particular to a device and method for determining the deformation position of a pipeline. Background technique [0002] During the laying process of the pipeline, due to external forces, such as collision or extrusion, the pipe wall of the pipeline will be deformed. According to the construction acceptance specification, before the pipeline is put into production, the deformation of the pipeline needs to be repaired, or the pipeline with serious deformation needs to be replaced directly. [0003] In the related art, a pipe pig is generally used to detect the deformation position of the pipeline. During the detection process, usually a pig with a thinner aluminum caliper plate can be run in the pipeline first, and when the thinner aluminum caliper plate has a large damage, it can be determined that the pipeline is deformed. After that, a pig with a thicker steel caliper plate can b...

Claims

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Application Information

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IPC IPC(8): G01B7/24
CPCG01B7/24
Inventor 富宽李睿赵晓明贾光明郑健峰沙胜义殴新伟于智博刘建平
Owner PETROCHINA CO LTD
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