A5049315496- Seismic Imaging and Inversion Techniques
- Drilling and Well Engineering
- Hydraulic Fracturing and Reservoir Analysis
- Seismic Waves and Analysis
- Neural Networks and Applications
- Engineering Diagnostics and Reliability
- Geological and Geophysical Studies
- Fire Detection and Safety Systems
- Methane Hydrates and Related Phenomena
- Reservoir Engineering and Simulation Methods
- Advanced Computational Techniques and Applications
- Autonomous Vehicle Technology and Safety
- Hydrocarbon exploration and reservoir analysis
- Advanced Neural Network Applications
- Advanced Sensor and Control Systems
Nanjing Tech University
2024
National Engineering Research Center of Electromagnetic Radiation Control Materials
2024
University of Electronic Science and Technology of China
2024
State Key Laboratory of Electronic Thin Films and Integrated Devices
2024
Huaiyin Institute of Technology
2024
China University of Petroleum, Beijing
2014-2021
ABSTRACT Seismic waves passing through partially saturated porous rocks produce pressure gradients in the fluid phase, and, hence, resulting flow is accompanied by various length scales. The major mechanism responsible for seismic attenuation and dispersion arguably known as wave‐induced between inhomogeneities of microscopic, mesoscopic macroscopic Previous studies have revealed that differentiating influence heterogeneities at scales on wave within exploration sonic frequencies,...
Abstract Vehicle transportation of hazardous chemicals is one the important mobile hazards in modern logistics, and its unsafe factors bring serious threats to people's lives, property environmental safety. Although current object detection algorithm has certain applications chemical vehicles, due complexity environment, small size low resolution vehicle target etc., becomes more difficult face a complex background. In order solve these problems, authors propose an improved based on YOLOv5...
Summary In this paper, a percentile-half-thresholding approach is proposed in the transformed domain thresholding process for iterative shrinkage (IST). The percentile-thresholding strategy more convenient implementing than constant-value, linear-decreasing, or exponential-decreasing because it’s data-driven. novel half-thresholding inspired from recent advancement researches on optimization using non-convex regularization. We summarize general framework IST and show that only difference...
Summary We present results of laboratory measurements velocity dispersion in a water partially saturated tight gas sandstone at seismic frequencies (2-100Hz) with strain amplitudes lower than <10-6. also obtained its elastic properties the ultrasonic frequency range (~1MHz) using transmission method. From to frequencies, there is no significant compressional wave (Vp) observed measured sample for saturation 20%, which has low porosity 4.6% and permeability 0.073mD; however, difference Vp...
Summary The Ordovician carbonates of the Yingshan formation in Tarim Basin present a complicated pore structure due to diagenetic and secondary structures. Seismic elastic properties (e.g., velocity) depends on porosity as well structure. We estimated average specific surface, pore-throat radius, roundness, aspect ratio carbonate rocks from Tazhong area. Measuring results show that high P-wave velocity samples have small large ratio. Diversity dense result fluid-related variability. For or...
Summary A multi-frequency band elastic parameters measurement system was used to measure the dispersive nature of waves in a tight sandstone under nitrogen gas and glycerin saturation. The measurements were performed at effective pressure Peff = [2–35] MPa temperature 23°C, 40°C 60 °C. For saturated (dry) rock, velocities remained almost unchanged from low seismic high ultrasonic frequencies each pressure. But saturation, exhibited obvious velocity variations frequency region, which largely...