A5082619025- Seismic Imaging and Inversion Techniques
- Hydraulic Fracturing and Reservoir Analysis
- Drilling and Well Engineering
- Hydrocarbon exploration and reservoir analysis
- Methane Hydrates and Related Phenomena
- Seismic Waves and Analysis
- Medical Image Segmentation Techniques
- Geophysical Methods and Applications
- Advanced Computational Techniques and Applications
- Advanced Control Systems Optimization
- Simulation and Modeling Applications
- Reservoir Engineering and Simulation Methods
- Advanced Fiber Optic Sensors
- Optimization and Search Problems
- Geological and Geophysical Studies
Southern Marine Science and Engineering Guangdong Laboratory (Guangzhou)
2023
Research Institute of Petroleum Exploration and Development
2018-2019
The distribution and characteristics of the Moho reflections (M-reflections) in oceanic basins record seafloor spreading process provide crucial insights into formation evolution basins. Approximately 20,000 km multichannel seismic reflection sections are used to characterize M-reflections crustal structures South China Sea subbasins. identified mainly distributed northwest subbasin, east northern southern flanks southwest subbasin (SWSB). They exhibit a banded pattern two-way traveltime...
Summary Converted-wave velocity modeling is very important in converted-wave PSTM. Based on the data western China, we proposed a approach for ultra deep carbonate reservoir. Firstly, original migration volume was determined by scanning after effective stack obtained. Then P-S wave ratio r0 estimated based well and comparison of PP PS sections. Afterwards CIP gathers were generated PSTM using volume. The processed to improve signal-noise four-parameters’ spectra updated flatten events. It...
PP-wave and PS-wave event registration is an essential element in multicomponent data analysis. In seismic exploration, multi-wave usually shows big difference quality, which makes it difficult to obtain stable Vp/Vs ratios, leads inaccuracy between image volumes. this paper, we developed a practical approach for volumes based on the 3D non-rigid matching algorithm. First, with relatively accurate model of ratios derived from prior information such as VSP, rough PP time scale can be...
With the development of hydrocarbon exploration, buried-hill is becoming an important exploration field in South China Sea, where has made a significant breakthrough X structure's recent years. According to series researches, reservoir extremely complex and dominated by fracture. Because high complexity reservoir, wide azimuth OBN (Ocean Bottom Node) acquisition with width length ratio 0.72 conducted. Comparing traditional towed streamer acquisition, superior approach acquire azimuth,...
The exploration needs of deep carbonate reservoir cannot be satisfied by the regular P-wave prospecting because embedding, low signal-to-noise ratio and strong heterogeneity in reservoir. However, since multiple seismic information including P-wave, S-wave converted-waves can used multi-wave multi-component exploration, precise for realized. In consideration processing difficulties data reservoir, three key techniques, well-controlled layer matching between PP- PS-wave, velocity modeling...
In this paper, to solve the poor matching problem of PS- and P-wave events multi-component data from ultra-deep fractured carbonate reservoirs, we proposed a well-constrained event non-rigid automatic method with high precision. Based on relatively more accurate 3D compressional shear wave velocity ratio estimated prior information such as VSP seismic data, smooth operator was designed ensure stability, least-squares linearization iterative used improve accuracy layers obtain much ratio. We...
The static correction of converted wave is an important basis for the imaging land data. Aiming at low S/N (signal to noise) ratio data in LN area Western China, We propose a set methods 3D signal noise data: First all, initial receiver S-wave statics were determined by Vp/Vs factor scanning after P-wave shot applied. And then short wavelength estimated based on conventional surface consistent residual correction. Afterwards remaining large was obtained using trend method common point...
The problem of static correction 3D converted wave data is very serious in western China. the signal-to-noise ratio low and first break time hard to pick up, which leads failure conventional method. Based on this, a set method proposed. In this method, P-wave shot point statics are directly used as converted-wave points. calculation receiver gradually solved by three methods: P S velocity scanning, surface-consistent residual common stack trace correlation. Compared with S-wave micro-logging...
In this paper, facing with the multi-solution problem in converted wave velocity model building, a set of practical VTI multi-parameter modeling idea is proposed. Firstly, we obtain average ratio γ0 compressional and shear using stratigraphic interpretation corresponding P-wave sections instead spectrum analysis. Then, initial migration Vc2 are used to perform isotropic pre-stack time wave, imaging gathers iteratively optimize only fine-tuning γ0, so that medium- near offset event flattened....