Harmonics signal feature extraction techniques: A review

ML Duc, P Bilik, R Martinek - Mathematics, 2023 - mdpi.com
Harmonic estimation is essential for mitigating or suppressing harmonic distortions in power
systems. The most important idea is that spectrum analysis, waveform estimation, harmonic …

Fiber optic pressure measurements open up new experimental possibilities in hydrogeology

C Leven, W Barrash - Groundwater, 2022 - Wiley Online Library
Fiber‐optic (FO) technology is being used increasingly for measurement methods in a
variety of environmental applications. However, FO pressure transducers are rarely used in …

[HTML][HTML] Hydromechanical analysis of the second hydraulic stimulation in well PX-1 at the Pohang fractured geothermal reservoir, South Korea

MP Farkas, H Hofmann, G Zimmermann, A Zang… - Geothermics, 2021 - Elsevier
In this study, we investigate numerically the hydro-mechanical behavior of fractured
crystalline rock due to one of the five hydraulic stimulations at the Pohang Enhanced …

[HTML][HTML] Application of A∗ algorithm for microstructure and transport properties characterization from 3D rock images

ES Borello, C Peter, F Panini, D Viberti - Energy, 2022 - Elsevier
Thorough comprehension of flow behavior in underground porous media is fundamental for
several applications such as oil and gas production, Underground Gas Storage, CO2 …

Period‐and Pressure‐Dependent Hydraulic Properties of a Fractured Granite Inferred From Periodic Pumping Tests

ND Barbosa, VA Jiménez Martínez… - Journal of …, 2023 - Wiley Online Library
Fractures can greatly impact fluid flow and pore pressure distribution in the upper crust. By
conducting borehole hydraulic experiments, we can determine the ability of fractures to …

ES-MDA applied to estimate skin zone properties from injectivity tests data in multilayer reservoirs

TMD Silva, RV Bela, S Pesco, A Barreto Jr - Computers & Geosciences, 2021 - Elsevier
Estimating reservoir properties, such as the skin factor, is an essential role of injectivity tests.
Nevertheless, determining individual layer properties in multilayer systems remains a …

Stiff, smooth, and solid? Complex fracture hydraulics' imprint on oscillatory hydraulic testing

JR Patterson, M Cardiff - Water Resources Research, 2023 - Wiley Online Library
Fractured bedrock aquifers, especially deep aquifers, represent increasingly common
targets for waste storage and alternative energy development, necessitating detailed …

Aquifer characterization and uncertainty in multi‐frequency oscillatory flow tests: Approach and insights

JR Patterson, M Cardiff - Groundwater, 2022 - Wiley Online Library
Characterizing aquifer properties and their associated uncertainty remains a fundamental
challenge in hydrogeology. Recent studies demonstrate the use of oscillatory flow …

不稳定试井技术研究进展及发展趋势

王玮淇, 管英柱, 张金发, 汪沪亮, 纪国法 - 特种油气藏, 2024 - sogr.com.cn
为更好监测油气藏生产动态, 提升油气田试井产能, 梳理了4 种常用不稳定试井技术的原理,
解释方法及应用效果, 分析了不稳定试井技术存在的问题, 并提出了未来的重点攻关方向 …

[HTML][HTML] How borehole wall elasticity affects wellbore storage capacity in periodic hydraulic tests

ND Barbosa, T Müller, M Favino, K Holliger - Journal of Hydrology, 2024 - Elsevier
Characterizing fluid transport and pore pressure diffusion is key for monitoring and
understanding many natural (eg, seismically active zones and volcanic systems) and …