A5115053698- Geophysical and Geoelectrical Methods
- Seismic Imaging and Inversion Techniques
- Geophysical Methods and Applications
- Earthquake Detection and Analysis
- Non-Destructive Testing Techniques
- Seismic Waves and Analysis
- Hydrocarbon exploration and reservoir analysis
- Geological and Geophysical Studies
- Hydraulic Fracturing and Reservoir Analysis
- Electrical and Bioimpedance Tomography
- Image and Signal Denoising Methods
- Geoscience and Mining Technology
- Structural Health Monitoring Techniques
- Geotechnical and Geomechanical Engineering
- Environmental Quality and Pollution
- Magnetic Properties and Applications
- Computational Physics and Python Applications
- High-Voltage Power Transmission Systems
- Meteorological Phenomena and Simulations
- Underwater Vehicles and Communication Systems
- Precipitation Measurement and Analysis
- Groundwater flow and contamination studies
- Geophysics and Sensor Technology
- Soil Moisture and Remote Sensing
- Geothermal Energy Systems and Applications
Central South University
2015-2024
China Nonferrous Metals Changsha Investigation Design Institute
2021-2023
Hunan Nonferrous Metal Research Institute
2018-2021
Chinese Academy of Sciences
2010
Institute of Geology and Geophysics
2010
Abstract Based on a comprehensive review of domestic and foreign literature, this article discusses the technical difficulties development status enhanced geothermal system (EGS) concerning thermal energy extraction deep hot dry rock (HDR) reservoirs proposes suggestions for research focus numerical simulation HDR reservoir stimulation. Additionally, it summarizes existing methods mainstream working fluids The emphasizes significance factors such as well location, production depth,...
In this paper, Wide Field Electromagnetic Method is established as a new electromagnetic exploration method. The WFEM apparent resistivity defined from the complete analytical expressions of horizontal electrical field source and vertical magnetic on surface homogeneous half space. definition, there no limit in distance between observation points transmitting source, while CSAMT "Cagniard resistivity" only valid "far zone". CSAMT, two orthogonal electric components are needed to calculate...
ABSTRACT Southern China is a favorable area for shale gas exploration and development, however the steep terrain complex geological structures make development difficult. Using logging data, seismic data Wide Field Electromagnetic Method (WFEM) this paper studies distribution of mudstone assesses effects different geophysical techniques used in Chengkou (CK) block, Sishang–Chengkou area, which has typical conditions found China. The results indicate that while requirement obtaining precise,...
Abstract Magnetotelluric (MT) data processing can increase the reliability of measured data. Traditional MT denoising methods are usually applied to entire time-series, which results in loss useful signals and a decrease imaging accuracy electromagnetic inversion. However, targeted noise separation retain part signal unaffected by strong enhance quality responses. Thus, we propose novel method for that uses refined composite multiscale dispersion entropy (RCMDE) orthogonal matching pursuit...
Noise tends to limit the quality of wide field electromagnetic method (WFEM) data and exploration results. The existing WFEM denoising methods lack signal identification process are only able filter or eliminate abnormalities in time frequency domain, which easily leads loss more abundant real low quality. Thus, we built sample library extract multi-domain features. Then, neighborhood search location sharing were used improve grey wolf optimizer (IGWO) algorithm. support vector machine (SVM)...
Red-bed basins with rich hydrocarbon source rocks are widely distributed in south China, such as Banshi Basin southern Jiangxi, which may have very good prospects for oil and gas exploration. However, due to poor ground conditions, complex geological structures, seismic exploration conventional electromagnetic methods cannot provide useful information evaluation. This study uses the wide field (WFEM) method investigate distribution geoelectric characteristics of target stratum a red-bed...
Strong noise is one of the biggest challenges in controlled-source electromagnetic (CSEM) exploration, which severely affects quality recorded signal. We have developed a novel and effective CSEM attenuation method that integrates deep convolutional neural network (DCNN) with high-quality sounding curve screening mechanism. This first employs DCNN to learn large-scale characteristics measured data build denoising model for attenuating noise. Since some impulse remains after denoising,...
Eliminating noise signals of the magnetotelluric (MT) method is bound to improve quality MT data. However, existing de-noising methods are designed for use in whole data sets, causing loss low-frequency information and severe mutation apparent resistivity-phase curve bands. In this paper, we used entropy (IE), Lempel–Ziv complexity (LZC), matching pursuit (MP) distinguish suppress signals. Firstly, extracted IE LZC characteristic parameters from each segment signal time-series. Then, were...
Abstract Magnetotelluric (MT) signal processing can increase the reliability of data. Traditional MT de-noising methods are usually filtered in entire time-series sequence, which result losing useful signals and degradation electromagnetic inversion imaging accuracy. However, targeted noise separation will retain part data that is not affected by strong noise, enhance quality Thus, we proposed a novel method using refined composite multiscale dispersion entropy (RCMDE) orthogonal matching...
PreviousNext You have accessSymposium on the Application of Geophysics to Engineering and Environmental Problems 2015Geophysics in Oilfield: Contaminants, Water Demand, Induced Seismicity, Hydraulic FracturingAuthors: Bruce D. SmithJeffery G. PaineJoanna N. ThamkeRichard HammackLyndsay B. BallMelvyn BestCarlos SalasScott R. NapierBill BrownShannon FreyMelvin SalasChrista-Marie LeibliBruce SmithMichael A. JacobsJoanna ThamkeMichael JacobsBruce SmithJoanna ThamkeLyndsay BallJared AbrahamClint...
There are a few recent publications describing the propagation of electromagnetic fields in "earth‐ionosphere" mode which includes ionosphere, air and earth. In exploration, generally only geoelectrical structures earth's crust upper mantle considered. The impacts ionosphere displacement currents neglected. However, for large scale applications method, effects on should be taken into account when observations carried at very remote locations far away from source (several thousand...
High risings' site exploration in urban Tangshan areas is a challenging task because of the high‐level ambient noises. The paper summarizes successful application CSAMT method to high‐rise buildings' investigation city, China. By carefully selecting output power, operating frequency, transmitter length, receiver spacing, removing wild data, and comparing among survey lines repeatedly, we were able accurately locate gob collapse, karsts buried structural fracture zone ground fissures,...
A new fault identification method, which is called the apparent current based on parameter variation of proposed after analysis limitations interpretation method for wide field electromagnetic data in non-seismic exploration oil and gas exploration. This takes study theory mechanism generation, this as research object, establishes connection between geoelectric section virtual equivalent circuit, then uses circuit carrier, applies theoretical equation current, combines geological background...
Abstract Magnetotelluric (MT) data processing can increase the reliability of measured data. Traditional MT de-noising methods are usually filtered in entire time-series sequence, which result losing useful signals and decrease imaging accuracy electromagnetic inversion. However, targeted noise separation retain part not affected by strong noise, enhance quality Thus, we proposed a novel method for separation, using refined composite multiscale dispersion entropy (RCMDE) orthogonal matching...