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A Numerical Processing Method for Inner Pipe Deformation

A numerical processing and pipeline technology, applied in image data processing, instrumentation, calculation, etc., can solve problems such as reconstruction of pipeline deformation pipeline 3D model, and achieve the effect of high model accuracy and fast modeling speed

Active Publication Date: 2021-07-02
BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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Problems solved by technology

[0005] In view of the above problems, the present invention provides a numerical processing method for internal deformation of the pipeline, which solves the problems of analyzing the deformation of the pipeline and reconstructing the three-dimensional model of the pipeline according to the detection data

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  • A Numerical Processing Method for Inner Pipe Deformation
  • A Numerical Processing Method for Inner Pipe Deformation
  • A Numerical Processing Method for Inner Pipe Deformation

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Embodiment Construction

[0068] The present invention will be described in detail below in conjunction with the accompanying drawings. Wherein, the accompanying drawings constitute a part of the present application, and together with the embodiments of the present invention, are used to explain the principles of the present invention.

[0069] The invention provides a numerical processing method for internal deformation of a pipeline. The method is based on the measured data of a deformation detector. After numerical processing, the theoretical circle center of the detection section can be quickly obtained, and the ellipticity of the pipeline can be evaluated, and can be based on the detection data. Realize the 3D reconstruction of the pipeline model.

[0070] The above-mentioned numerical processing method for deformation in the pipeline, as shown in Figure 1, includes the following steps:

[0071] Step 1: According to the three-dimensional detection data of the deformation in the pipeline, a series...

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Abstract

The invention discloses a numerical processing method for internal deformation of a pipeline, belongs to the engineering field of pipeline deformation detection, and solves the problems of analyzing pipeline deformation according to detection data and reconstructing a three-dimensional model of the pipeline. According to the three-dimensional detection data of the deformation in the pipeline, a series of discrete data points in multiple sections perpendicular to the axis of the pipeline is established; an additional point is added at the end of the series of discrete data points, so that the series of discrete data points after the above processing can form a closed Curve; According to the discrete data point column of each section after processing, the cubic spline function of each section is obtained, and the cubic spline function is solved to obtain the one-dimensional closed curve fitting of the pipeline section and the ellipticity of the pipeline section; each section The set of discrete data point columns constitutes the 3D point cloud data set of the pipeline, and establishes the 3D model of the pipeline. The numerical processing method described above can be used to establish a three-dimensional model of the pipeline.

Description

technical field [0001] The invention belongs to the field of pipeline deformation detection engineering, and in particular relates to a numerical processing method for comprehensively analyzing deformation in a pipeline by using data of multiple detection points through a numerical analysis method. Background technique [0002] Pipeline deformation detection and comprehensive evaluation technology is an important supporting technology in the field of oil and gas transportation. [0003] As a long-distance transportation facility for natural gas, oil and other media, pipelines are laid in various environments such as land and sea around the world. Most of the pipelines are buried pipelines. Due to earthquakes, stratum movement, crustal changes, heat transfer deformation, third-party construction damage, etc., the pipelines are often deformed to varying degrees, such as pipeline sag, elliptical deformation, bending and sinking. These deformations will pose a safety hazard, an...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G06T17/10G06T17/20G01B21/32
CPCG01B21/32G06T17/10G06T17/20
Inventor 刘志贾兴豪董志江王妮张广宇
Owner BEIJING HUAHANG RADIO MEASUREMENT & RES INST
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