研究方向(Research)

地震层析成像与全波形反演 (Seismic tomography and waveform inversion)

各向同性/各向异性,走时/振幅/波形,线性/非线性,伴随状态法/散射积分法,射线/有限频/波动方程,地震层析成像理论与方法;

 Anisotropic/Isotropic, traveltime/amplitude/waveform, linear/nonlinear, adjoint-state method/integral-algorithm algorithm, ray-based/finite-frequency/wave-equation, seismic tomography theory and methods;

各向同性/各向异性,拉普拉斯/包络/波形,伴随状态法/散射积分法,时间域/频率域,数据域/成像域,声波/弹性波,全波形反演理论、方法、策略与应用研究。

Anisotropic/Isotropic, Laplace/envelope/waveform, adjoint-state method/integral-algorithm algorithm, time-domain/frequency-doman, data-domain/imaing-domain, acoustic/elastic, full waveform inversion theory, methods, strategies and application researches.

地震波传播与数值模拟(Seismic wave propagation and numerical simulation)

透射/反射,运动学/动力学,各向同性/各向异性,射线理论与方法;

Transmitted/Reflected, kenimatic/dynamic, anisotropic/isotropc, ray theory and methods;

有限差分/有限元/DG/SEM,各向同性/各向异性,声波/弹性波,地震波数值模拟方法与地震波传播规律研究.

Finite differential/Finite element/DG/SEM, anisotropic/isotropic, acoustic/elastic, seismic wave simulation methods and wave phenomina researches.

地震成像(Seismic Imaging)

RTM与LSRTM,及其偏移距道集与角道集的抽取。

RTM and LSRTM, and the extraction of ODCIG and ADCIG. 

天然地震与微地震的定位(Natural earthquake and Microseismic Source Location)

利用射线层析与波形反演进行地震的定位研究。

Source location of natrual earthquake and microseismic sources using ray-based or waveform inversion based methods.

勘探地震学 (Exploration Seismology)

各种理论与方法在勘探地震学中的应用研究,尤其是利用地震层析成像与全波形反演方法获得表层/地下深部的速度/密度/各向异性参数分布特征;研究地震波的散射特征;地震波在复杂起伏地表区的传播规律;地震波在复杂储层中的传播特点;除以上正反演理论在勘探地震学中的应用研究外,还包括静校正、偏移与偏移速度分析等地震数据处理方法研究。

Application researches of all kinds of theories and methods on seismic exploration. Application of seismic tomography and FWI on velocity/density/anisotropic inversion of shallow/deep parts of subsurface; Research of wave scattering; Wave propagation in complex surface with topography; Wave propagation in complex reservior; Besides the above applications of seismic simulation and inversion on exploration, we also focus on static correction, migration and velocity analysis.

天然地震学与地球动力学 (Natural Seismology and Geodynamics)

各种理论与方法在天然地震学与地球动力学中的应用研究。包括:基于OBS的莫霍面深度、南海洋壳与上地幔速度结构/各向异性参数反演与解释;中国大陆与西太的上地幔速度结构反演与解释;全球P波速度结构反演与解释等。

Application researches of all kinds of theories and methods on natural seismology and geodynamics. Inversion and explaination of Moho depth, velocity/anisotropy of crust and upper mantle of South China Sea based on OBS obervation; Inversion and explaination of upper mantle velocity in Chinese continent and west Pacific; Inversion and explaination of global P wave velocity.

勘探地震学与天然地震学中OBS数据的处理与反演成像 (OBS Inversion and Imaging for both Exploration Seismology and Natrual Earthquake Seismology)

OBS采集具有观测孔径大、接收信息丰富、噪音小、作业代价小等优点,不仅在天然地震与地球动力学研究中,以后也将在勘探地震学中取得快速的发展。我们致力于OBS采集数据的处理与成像反演,主要针对四分量数据的有效利用开展研究,以获取地下尽可能多的信息。

OBS acquisition has the advantages of wider aperture, multi-component observation, high S/N ratio and low acquisition cost. It has been widely used in natrual earquake seismology, and will definitely quickly used in seismic exploration. We are engaged in OBS data processing, inversion and imaging. The main purpose is to make full use of the four components of the observed data to obtain more information of the sub-seafloor media.

 

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