A review of underground transport infrastructure monitoring in CCS: Technology and Engineering Practice

Process Safety and Environmental Protection, Journal Year: 2024, Volume and Issue: 190, P. 726 - 745

Published: Aug. 24, 2024

Language: Английский

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High-Efficiency Positioning of Vibration Intrusions for Long-Distance Perimeter Security Monitoring Based on Time-Frequency Variation Envelopes

IEEE Transactions on Instrumentation and Measurement, Journal Year: 2024, Volume and Issue: 73, P. 1 - 11

Published: Jan. 1, 2024

Monitoring long distance perimeter security using distributed optical fiber vibration sensing technology to detect potential intrusions with high efficiency is crucial for its successful application in practical engineering. In this article, an asymmetric dual Mach-Zehnder interferometer based system constructed accurately and rapidly locate the on improved time-frequency variation envelope extraction scheme. First, signals received from are filtered by a mean filtering method. Thus low-frequency noises can be effectively eliminated starting points of caused applied acquired. Second, features envelopes intrusion extracted variational mode decomposition approach, which successfully suppress asymmetry signals. Third, time delay between interference acquired performing cross-correlation method envelopes. So position correctly To validate feasibility proposed positioning scheme, we conduct series field tests perturbing fence system. The results show that processing scheme greatly shortened 74 ms. Moreover, average error 35.5 m also realized length 101 km. With significant advancements accuracy, believe has great systems.

Language: Английский

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Mechanisms of sand production, prediction–a review and the potential for fiber optic technology and machine learning in monitoring

Journal of Petroleum Exploration and Production Technology, Journal Year: 2024, Volume and Issue: 14(10), P. 2577 - 2616

Published: Aug. 14, 2024

Sand control is an ongoing challenge in numerous hydrocarbon-producing wells sand-rich reservoirs. production these can cause damage to equipment, reduce rates, and lead erosion that subsea well completions, surface facilities. This problem compromise the mechanical integrity of well, resulting reduced hydrocarbon increased operating expenses. review evaluates various sand mechanisms, including geological methodologies, fluid-related aspects, which are thoroughly investigated offer a thorough understanding complexity issue state prediction approaches. Empirical correlations, numerical simulations, analytical models among techniques critically assessed this study. The benefits, drawbacks, suitability for reservoir environments discussed. Furthermore, potential benefits combining Fiber optic (FO) technologies machine learning (ML) real-time monitoring mitigation highlighted. integrated strategy has transform practices industry, as demonstrated by case studies new research highlights its effectiveness. future vision outlined includes developments automation, data processing methods, sensor technologies, should improve precision dependability predictions mitigation. In conclusion, paper provides extensive analysis current level techniques, mechanisms behind oil gas wells. how real-time, data-driven solutions addressing problems may be provided FO ML, ultimately safer more effective recovery operations.

Language: Английский

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Detection of vaccinia virus proteins in wastewater environment using biofunctionalized optical fiber semi-distributed FBG-assisted interferometric probes

Sensing and Bio-Sensing Research, Journal Year: 2024, Volume and Issue: 46, P. 100699 - 100699

Published: Oct. 23, 2024

Language: Английский

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On the Use of Low-Frequency Distributed Acoustic Sensing Data for In-Well Monitoring and Well Integrity: Qualitative Interpretation

SPE Journal, Journal Year: 2022, Volume and Issue: 28(03), P. 1517 - 1532

Published: Dec. 9, 2022

Summary Distributed acoustic sensing (DAS) is used to monitor production and injection wells in real time. Here we present theory, data examples, interpretation of low-frequency (LF)-DAS acquired on fiber-optic (FO) cables clamped the tubing. We show that these give unprecedented insights into well serve as a tool for qualitative analysis integrity, operations, production. By understanding data, we, example, can detect leaks, valve performance, liquid level Annulus A. While in-well DAS’s sensitivity changes temperature over time known, its pressure flow at low frequencies has not been understood. Here, LF-DAS response multifaceted dependent fluid content different tubulars well, casing, completion design, if open or closed. Very often seen due an accompanied effect; while this complicates overall picture quantitative analysis, be made simple. Understanding processes forms foundation developing automated algorithms future.

Language: Английский

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Comparison of Gas Signature and Void Fraction in Water- and Oil-Based Muds Using Fiber-Optic Distributed Acoustic Sensor, Distributed Temperature Sensor, and Distributed Strain Sensor

SPE Journal, Journal Year: 2024, Volume and Issue: 29(07), P. 3531 - 3552

Published: April 18, 2024

Summary Accurate estimation and prediction of gas rise velocity, length the influx region, void fraction are important for optimal kick removal, riser management, well control planning. These parameters also essential in monitoring characterization multiphase flow. However, dynamics non-Newtonian fluids, such as drilling mud, which is control, poorly understood due to inability create full-scale annular flow conditions that approximate observed field. This results a lack understanding poor behavior To bridge this gap, we use distributed fiber-optic sensors (DFOS) real-time fraction, water oil-based mud (OBM) at scale. DFOS can overcome major limitation downhole gauges logging tools by enabling in-situ dynamic events simultaneously across entire wellbore. study first well-scale deployment acoustic sensor (DAS), temperature (DTS), strain (DSS) investigation OBM. Gas migration velocities, lengths were analyzed 5,163-ft-deep wellbore experiments conducted with nitrogen synthetic-based similar operating conditions. An improved transient drift flux–based numerical model was developed simulate experimental processes understand different fluid environments. The fractions, estimated independently using DAS, DTS, DSS showed good agreement simulation results, gauge analysis.

Language: Английский

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Serially Connected Cantilever Beam-Based FBG Accelerometers: Design, Optimization and Testing

Sensors, Journal Year: 2023, Volume and Issue: 23(6), P. 3188 - 3188

Published: March 16, 2023

We focus on the design, optimization, fabrication, and testing of fiber Bragg grating (FBG) cantilever beam-based accelerometers to measure vibrations from active seismic sources in external environment. These FBG possess several advantages, such as multiplexing, immunity electromagnetic interference, high sensitivity. Finite Element Method (FEM) simulations, calibration, packaging simple accelerometer based polylactic acid (PLA) are presented. The influence beam parameters natural frequency sensitivity discussed through FEM simulation laboratory calibration with vibration exciter. test results show that optimized system has a resonance 75 Hz within measuring range 5-55 ±433.7 pm/g. Finally, preliminary field is conducted compare packaged standard electro-mechanical 4.5-Hz vertical geophones. Active-source (seismic sledgehammer) shots acquired along tested line, both systems' experimental analyzed compared. designed demonstrate suitability record traces pick up first arrival times. optimization further implementation offer promising potential for acquisitions.

Language: Английский

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Eliminating the Fading Noise in Distributed Acoustic Sensing Data

IEEE Transactions on Geoscience and Remote Sensing, Journal Year: 2023, Volume and Issue: 61, P. 1 - 10

Published: Jan. 1, 2023

Fading noise is a crucial problem in distributed acoustic sensor (DAS) system which can severely degrade the system's ability on detection. In this paper, we systematically studied mechanism and characteristics of fading dual-pulse heterodyne demodulated DAS system. Results show that not only causes big errors signal, but also leads to amplitude distortion seismic wave. We propose sort average over trace (SAOT) algorithm eliminate data. After implementation simulated data, error be eliminated 100%, residual standard deviation reduced by 32 dB. Meanwhile, correlation between processed data noise-free improved 29 Then performance further verified laboratory experiment, achieving reduction 33 Finally, perfectly vertical profile (VSP) surface obtained at oilfield site.

Language: Английский

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Multi-band chirped pulse based Φ-OTDR for fading suppression and high spatial resolution

Optics and Lasers in Engineering, Journal Year: 2025, Volume and Issue: 186, P. 108833 - 108833

Published: Jan. 17, 2025

Language: Английский

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Measuring early-age shrinkage of concrete incorporating shrinkage reducing admixtures using distributed fiber optic sensors

Measurement, Journal Year: 2025, Volume and Issue: unknown, P. 116763 - 116763

Published: Jan. 1, 2025

Language: Английский

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