Evaluation of Distance Measurement Accuracy by Odometer for Pipelines Pigs

Sadovnychiy, Sergiy; López, Juan M.; Ponomaryov, Volodymyr; Sadovnychyy, Andriy

doi:10.1627/jpi.49.38

Cited by 8 publications

(6 citation statements)

References 1 publication

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“…This process can be defined as a compensation calculation from the measured magnetic field to the original magnetic field. At the same time, the radial distance between the dual receivers in the lateral offset case is no longer r, but r new , which is shown as (14):…”

Section: The Lateral Offset Casementioning

confidence: 99%

“…Furthermore, there are two ways to achieve active locating method, the odometer positioning method [11] and the inertial measurement unit (IMU) method [12,13]. However, due to the slip caused by paraffin oil or the mechanical error caused by wear [10], the positioning error of the odometer can be as high as 10% [14]. What is worse, owing to cumulative counting, there is a cumulative error in the odometer positioning method [15].…”

Section: Introductionmentioning

confidence: 99%

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High-Precision and Four-Dimensional Tracking System with Dual Receivers of Pipeline Inspection Gauge

et al. 2021

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Pipeline inspection gauges (PIGs) are widely used for nondestructive testing of oil and natural gas pipelines, while above ground markers (AGMs) can locate and track the PIG through a variety of methods, including magnetic flux leakage signals, acoustic signals, and extremely low-frequency (ELF) magnetic signals. Traditional AGMs have the disadvantages of low positioning accuracy and only one-dimensional tracking capability. In this paper, a newly-designed PIG tracking system based on the ELF magnetic field is proposed by assembling dual receivers. Moreover, this paper develops a magnetic field sign-integration algorithm to achieve high-precision and four-dimensional (4-D) tracking of PIG. The simulation and experiment results demonstrate that the tracking system has the capability of 4-D tracking. In comparison with the previously published work, the designed tracking system improves the positioning accuracy and orientation tracking accuracy by more than 50%. The dual receivers tracking system also has the characteristic of high-robustness. Even in the state of lateral offset or tilt, it can still achieve accurate tracking of PIG. The realization of PIG’s high-precision 4-D tracking can improve the accuracy of defect location. Moreover, it can also provide the latest pipeline network layout and facilitate pipeline maintenance and pipeline surveying applications.

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Section: The Lateral Offset Casementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

High-Precision and Four-Dimensional Tracking System with Dual Receivers of Pipeline Inspection Gauge

et al. 2021

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“…If the result contains a large error in positioning, the volume and time of the excavation of pipeline maintenance will be greatly increased [12][13][14]. Therefore, in this paper, the various factors causing positioning error with the odometer wheel are analyzed in order to improve the accuracy.…”

Section: Error Factors Of Odometer Wheelmentioning

confidence: 99%

Error Factor and Mathematical Model of Positioning with Odometer Wheel

Wang

Jing

Sun

2014

Advances in Mechanical Engineering

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High positioning accuracy with odometer wheel is of great importance for internal pipeline defect detection. In current research, the qualitative analysis is focused on and the accumulation characteristics of positioning errors are not shown. Based on this, the models and the accumulation characteristics of positioning errors are investigated in this paper. The errors are classified into systematic errors and random errors. Systematic errors consist of difference between actual and nominal diameters, diameter difference among wheels, and terminal error. Random errors consist of initial point error, weld error, and oversized clearance. The mathematical models of the errors are obtained by the methods of quantitative analysis and contrastive analysis. Through calculation examples, the results show the relationship of the errors and the effect of each error on total error. Diameter calibration and detection in sections are proposed to improve the positioning accuracy.

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“…Esse deslocamento deve atender à especificação para velocidade média de 3 m/s, conforme Sadovnychiy, López, Ponomaryov, & Sadovnychyy (2006), para garantir uma boa inspeção. Acontece que, em alguns casos ao deparar-se com algum tipo de obstrução, o PIG emperra no duto.…”

Section: Introductionunclassified

“…É importante ressaltar o estado da arte ao qual se encontram os estudos tomados como base para a escrita deste documento, como Silva & Pinho (2001) e Sadovnychiy et al (2006). Nestes trabalhos é comum a menção da palavra odômetro para denominar a parte do PIG encarregada de medir a distância percorrida por eles dentro das tubulações.…”

Section: Introductionunclassified

DESENVOLVIMENTO DE TACÔMETRO MAGNÉTICO PARA MEDIÇÃO DE VELOCIDADE EM PIGs INSTRUMENTADOS

Silva

Lima

Salazar

2017

HOLOS

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A inspeção de dutos e tubulações é preocupação constante das empresas transportadoras de petróleo e derivados, visando à prevenção de vazamentos e desastres ambientais. Para esta tarefa são utilizadas ferramentas de sensoriamento interno para a constatação da integridade dessas tubulações, conhecidas como PIGs instrumentados. Este trabalho faz parte de uma proposta para o controle das altas velocidades atingidas por PIGs instrumentados durante o seu processo de operação e apresenta os detalhes do desenvolvimento de um tacômetro magnético, utilizando um microcontrolador ATMEGA328P e um sensor de efeito Hall modelo 3144. Um protótipo foi construído com uma roda de 66mm de diâmetro e em sua lateral foi fixado um ímã de neodímio. No suporte da roda foi colocado o sensor de efeito Hall, com o objetivo de captar a passagem do ímã, gerando um pulso quadrado. A cada passagem do ímã uma interrupção externa no microcontrolador calcula a velocidade de posse dos tempos entre um pulso e outro, captados pelo sensor.

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Evaluation of Distance Measurement Accuracy by Odometer for Pipelines Pigs

Cited by 8 publications

References 1 publication

High-Precision and Four-Dimensional Tracking System with Dual Receivers of Pipeline Inspection Gauge

High-Precision and Four-Dimensional Tracking System with Dual Receivers of Pipeline Inspection Gauge

Error Factor and Mathematical Model of Positioning with Odometer Wheel

DESENVOLVIMENTO DE TACÔMETRO MAGNÉTICO PARA MEDIÇÃO DE VELOCIDADE EM PIGs INSTRUMENTADOS

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