Results 1 to 10 of about 34 (32)

A Simultaneous Pipe-Attribute and PIG-Pose Estimation (SPPE) Using 3-D Point Cloud in Compressible Gas Pipelines

Sensors, 2023
An accurate estimation of pipe attributes, pose of pipeline inspection gauge (PIG), and downstream pipeline topology is essential for successful in-line inspection (ILI) of underground compressible gas pipelines.
Hoa-Hung Nguyen, Jae-Hyun Park, Han-You Jeong   +2 more
doaj   +1 more source

Influence of anchorage body post-expansion on radial pressurization of surrounding rock

Meikuang Anquan, 2023
Aiming at the problem of how to give full play to the reverse extrusion ability of bolt to the surrounding rock to make the interface stress balance quickly and enhance the active support effect, we propose the anchorage method of radial pressurization ...
NAN Hua, ZHAO Beibei, WANG Shuai, LUO Ming
doaj   +1 more source

Numerical investigation on sealing performance of drainage pipeline inspection gauge crossing pipeline elbows

Energy Science & Engineering, 2021
A pipeline inspection gauge (PIG) is routinely passed throughout the long‐distance oil and gas pipelines by pipeline operators to clean the pipeline. Sealing performance is a significant evaluation index for PIG's safety operation.
Jinxu Jiang, Hong Zhang, Beilei Ji, Feining Yi, Feng Yan, Xiaoben Liu   +5 more
doaj   +1 more source

Reducing the Impact of Electroconductivity and the Gap between the Pipe and the Transducer at Measuring Thickness of Electroconductive Pipe Walls using the Eddy-Current Method

MATEC Web of Conferences, 2016
The paper describes a dual-frequency method for reducing the impact of changes in the gap size between the eddy-current transducer and the pipe, as well as the pipe electrical conductivity on the eddy-current thickness gauge readings.
Yakimov Evgeny, Ustyugov Daniil
doaj   +1 more source

Air-Coupled and Resonant Pulse-Echo Ultrasonic Technique

Sensors, 2019
An ultrasonic, resonant, pulse-echo, and air-coupled nondestructive testing (NDT) technique is presented. It is intended for components, with regular geometries where it is possible to excite resonant modes, made of materials that have a high acoustic ...
Tomás Gómez Álvarez-Arenas, Jorge Camacho   +1 more
doaj   +1 more source

Modeling and simulation analysis of bi-directional PIG based on the pseudo-rigid body model

Journal of Pipeline Science and Engineering
Pipeline inspection gauge (PIG) is essential to ensure the safe transportation of oil and gas pipelines. The sealing disc is an essential part of the bi-directional PIG.
Xincheng Guo, Ruixin Bao, Jia Li, Xiangguang Sun, Zhen Pan, Guiyang Ma   +5 more
doaj   +1 more source

Mechanical response of buried X70 pipelines rolled by heavy-duty vehicles

You-qi chuyun
[Objective] With the ongoing urbanization in China, the frequency of heavy-duty vehicles traversing buried pipelines is steadily increasing. Therefore, it is of paramount importance to investigate the mechanical response patterns of buried pipelines ...
LI Yukun, DONG Zhuang, CHANG Jinglong, PEI Chenliang, ZHOU Peng, YANG Ao, LI Hongtao, LI Wang   +7 more
doaj   +1 more source

Fatigue crack growth measurement and microstructural characterization of circumferentially part through cracked pipes under constant-amplitude pure bending

Discover Applied Sciences
In the present work, an analytical solution for measuring the indirect crack length in the radial and circumferential directions of 3D TP 316L stainless steel pipe samples under pure bending with different notch angles (35°, 45°, and 50°) was developed ...
Vaneshwar Kumar Sahu, Bipin Bihari Verma, Sergei Sherbakov, Daria Podgayskaya, Pawan Kumar, H. M. Vishwanatha   +5 more
doaj   +1 more source

CFD analysis of temperature-driven flow for passive HVAC applications in Irish homes

International Journal of Thermofluids
Buoyancy-driven ventilation is a sustainable alternative to conventional HVAC systems, leveraging temperature differences to induce airflow. This study analyzes buoyancy-driven flow using Computational Fluid Dynamics (CFD) in ANSYS Fluent to evaluate its
Rahul D, Anjaneya G, Manjunatha N K, Sunil S, Mohan Kumar G R, Girish Kumar G S, C.Durga Prasad, Nithesh Kumble Gokuldas, Nilesh H. Khandare, Nimona Hailu   +9 more
doaj   +1 more source

Cause Analysis and Countermeasures for Blocking of Sand Control String in Multilateral Horizontal Well

Shiyou jixie, 2020
To analyze the blocking causes of the sand control string in multilateral horizontal wells in the Bohai Oilfield, and provide technical countermeasures, combined with the operation phenomenon, operating parameters and string running simulation analysis ...
Li Jin, Zhang Xiaocheng, Wang Kunjian, Liu Pengfei, Dou Peng   +4 more
doaj