A5100449947- Seismic Imaging and Inversion Techniques
- Drilling and Well Engineering
- Hydrocarbon exploration and reservoir analysis
- Seismic Waves and Analysis
- Hydraulic Fracturing and Reservoir Analysis
- Thermoelastic and Magnetoelastic Phenomena
- Ultrasonics and Acoustic Wave Propagation
- High-pressure geophysics and materials
- Rock Mechanics and Modeling
- Geological and Geophysical Studies
- Geotechnical and Geomechanical Engineering
- Advanced Image and Video Retrieval Techniques
- Fire effects on concrete materials
- Rheology and Fluid Dynamics Studies
- Medical Image Segmentation Techniques
- Neuroscience and Neural Engineering
- Bone Tissue Engineering Materials
- Advanced Neural Network Applications
- Methane Hydrates and Related Phenomena
- Geological Studies and Exploration
- 3D Printing in Biomedical Research
- Seismology and Earthquake Studies
- Geological formations and processes
Sinopec (China)
2023-2024
China University of Petroleum, East China
2021-2023
Qingdao National Laboratory for Marine Science and Technology
2023
Chinese Academy of Sciences
2017-2019
Institute of Geology and Geophysics
2019
University of Chinese Academy of Sciences
2019
Experiments with ten groups of limestone specimens (four samples per group) under specific temperatures, 25 °C, 100 200 300 400 500 600 700 800 and 900 show that the high-temperature effect on elastic modulus rocks conforms to thermoelastic responses a quadratic temperature function. The thermal damage factor can be reduced, by ignoring Poisson's ratios densities, simply ratio P-wave velocities before after treatments. Based collected experimental data, we correlate change rate both peak...
Automatic seismic fault identification for data is essential oil and gas resource exploration. The traditional manual method cannot accommodate the needs of processing massive data. With development artificial intelligence technology, deep learning techniques based on pattern recognition have become a popular research area identification. Despite progress made with U-shaped neural networks (Unet), they still fall short in meeting stringent requirements prediction complex structures. We...
We constructed a thermo-viscoelasticity equation based on Lord-Shulman (LS) thermoelasticity with the Kelvin-Voigt (KV) model for viscoelasticity. The plane-wave analysis predicts two compressional waves and shear wave. These two compressional waves are the fast-P and slow-P diffusion/wave (the T-wave), which have similar characteristics to fast- and slow-P waves of poroelasticity, respectively. To overcome...
The Bohai Bay Basin is a Meso-Cenozoic rifted basin where the Paleozoic buried hills with great hydrocarbon potentials are well developed. reservoir space types complex and diverse due to tectonic activities, making fracture distribution highly heterogeneous. Reservoir identification mapping challenging their large burial depth poor resolution of seismic data. An integration well-logging, data interpretation core observation applied identify three structural unit in study area, that is,...
Rocks can be viewed as composites of solid minerals with pores or cracks filled softer material such pore fluids, kerogen, bitumen, and other organic matter. The mechanical properties highly viscous soft phases are sensitive to ambient temperatures lead temperature-dependent static dynamic observations the composite rock. However, constituents operate by forming some effective (averaged) rock, yet these averaged still little known. To reveal macroscopic measure their values in rock samples,...
Abstract Thermally coupled constitutive relations are generally used to determine material constants and elastic moduli (Young's modulus shear modulus) of solid media. Conventional studies on this issue mainly based the linear temperature dependence moduli, whereas analytical difficulties often encountered in theoretical nonlinear dependence, particularly at high temperatures. This study investigates thermally for using assumption axisymmetric fields, with applications geologic materials...
SUMMARY In principle, wave propagation in porous media can simultaneously trigger macroscopic fluid flow and thermal flow, which be described by Biot's poroelasticity Lord–Shulman thermoelasticity, respectively. The physical processes of those effects are significantly different, but phenomenologically, they lead to identical attenuation dispersion hard distinguished. By using virtual concept entropy the Biot-consistent General Linear Solid (the GLS) framework matrix notation, a rigorous...
Temperature-induced variations of elastic moduli in solid media are generally characterized by a strong nonlinear dependence on temperature associated with complex deformations under thermal treatments. Conventional thermoelasticity third-order constants for the one-order has been extensively studied crystals, but encountering problems divergent and limited velocity rocks as polycrystal mixture, especially at high temperatures. The extension theory beyond high-order to is addressed this...
Thermoelastic attenuation of P waves is due to energy conversion the heat mode, which diffusive at low frequencies and wave-like high frequencies, behaving similarly Biot slow mode. The strong in highly heterogeneous media. We consider a layered medium with random distribution thermal properties, specifically Grüneisen ratio, obtain phase velocity quality factor. relaxation peak wider than those periodic sequence layers Zener mechanical model. Indeed, Cole–Cole fractional model needed good...
Synchronous prestack inversion technology has been widely used to predict the fluid and lithological properties of reservoirs. Its prediction accuracy depends on seismic data quality. Ultra-deep carbonate reservoirs in Shunbei area Tarim Basin were as research objects. Based shear wave (S-wave) method, petrophysical logging analysis was carried out select physical property-sensitive elastic parameters. A property indicator with porosity target curve constructed quantitatively characterize...
The Gudong area contains abundant petroleum resources. Previous studies have mainly focused on the extension structure in this area, with its strike-slip characteristics remaining poorly understood. In study, geometry of faults was investigated using high-resolution 3D seismic reflection and drilling data, as were their associated releasing restraining structures. Based profile’s flower plane’s horsetail splay pattern, fault study can be characterized a dextral strike-slip. Three types...
Abstract The Paleogene Shahejie and Dongying formations of the eastern Bohai Bay Basin contain >500 m fluvial-deltaic deposits >600 deltaic-lacustrine deposits, both which are important for oil gas exploration. This study aims to figure out deposition system distribution within sequence stratigraphy predict exploration target. Sequence boundaries recognized by unconformities in seismic profiles abrupt changes well-logging curves (acoustic, spontaneous potential, natural...
Summary: Based on the Longmaxi shale digital core, we extract rock physical attributes and using Biot theory, set up fine model with two-phase medium, ensuring numerical simulation result in contrast to experiments ultrasonic waves. In order better simulate propagation analysis scattering characteristics of interaction between sub-micron present a rotated stagger-grid high-order finite-difference (FD) method unsplit convolutional perfectly matched layers (PML). The contamination boundary...