Results 11 to 20 of about 240,017 (204)

Prestack Seismic Inversion via Nonconvex L_1-2 Regularization

Applied Sciences, 2021
Using seismic data, logging information, geological interpretation data, and petrophysical data, it is possible to estimate the stratigraphic texture and elastic parameters of a study area via a seismic inversion.
Wenliang Nie, Fei Xiang, Bo Li, Xiaotao Wen, Xiangfei Nie   +4 more
doaj   +2 more sources

Uncertainty Analysis in Prestack Stratigraphic Inversion - A First Insight [PDF]

70th EAGE Conference and Exhibition incorporating SPE EUROPEC 2008, 2008
Stratigraphic inversion of prestack seismic data allows the determination of subsurface elastic parameters (density, P and S-impedances). Based on a Bayesian approach, the problem is formulated as a non-linear least-squares local optimization problem. The objective function to be minimized is composed of two terms, the first one measures the mismatch ...
Delbos, Frédéric, Sghiouer, Kaoutar, Sinoquet, Delphine   +2 more
core   +7 more sources

Application of a model-driven simultaneous prestack inversion of rock physical properties in ultra-deep Ordovician carbonate reservoirs in the Shunbei area [PDF]

Frontiers in Earth Science, 2023
Synchronous prestack inversion technology has been widely used to predict the fluid and lithological properties of reservoirs. Its prediction accuracy depends on the seismic data quality.
Zhiwei Wang, Zhiwei Wang, Li-Yun Fu, Li-Yun Fu, Li-Yun Fu, Shikai Jian, Wubing Deng, Wubing Deng   +7 more
doaj   +2 more sources

Attribute-Guided Prestack Seismic Waveform Inversion—Methodology, Applications, and Feasibility to Characterize Underground Reservoirs for Potential Hydrogen Storage

Eng
Prestack seismic waveform inversion starts with an initial model and computes synthetic or predicted seismic data using a wave equation-based approach.
Dwaipayan Chakraborty, Subhashis Mallick
doaj   +2 more sources

Time-lapse seismic attenuation as a tool for monitoring hydrocarbons and CO2 in geological materials [PDF]

, 2011
Both laboratory experiments and theoretical models have shown seismic attenuation to be sensitive to various petrophysical properties of rock and pore fluids, making attenuation a potentially useful time-lapse attribute to measure and interpret through ...
Blanchard, Thomas David
core   +6 more sources

Direct Prestack Inversion of the Formation Pressure Coefficient for Deepwater Overpressured Reservoirs

Journal of Marine Science and Engineering
Accurate prediction of overpressured formations in deepwater is important for drilling safety and reservoir evaluation. However, conventional two-step inversion workflows are affected by cumulative errors and parameter crosstalk, which limits their ...
Hao Chen, Handong Huang, Gang Cui, Jun Liao, Jiahui Peng, Yaning Wu   +5 more
doaj   +2 more sources

Inversion of prestack seismic data using FISTA [PDF]

, 2012
Fil: Sacchi, Mauricio Dino. University Of Alberta.
Perez, Daniel Omar, Velis, Danilo Ruben, Sacchi, Mauricio Dino   +2 more
core   +5 more sources

Application of Seismic Waveform Indicator Inversion in the Depth Domain: A Case Study of Pre-Salt Thin Carbonate Reservoir Prediction

Energies, 2023
Prestack depth-migrated seismic data, having more accurate imaging position and amplitude fidelity than prestack time-migrated seismic data, are supposed to produce a higher quality reservoir prediction result by using depth-domain inversion.
Jinjin Hao, Shiguo Wu, Jinxiu Yang, Yajun Zhang, Xuemei Sha   +4 more
doaj   +1 more source

Viscoelastic Fluid Factor Inversion and Application in Luojia Oilfield Based on Broadband Impedance

Geofluids, 2021
Based on the physical quantity of log data, the accurate identification of oil- and gas-bearing properties may be caused by the prestack inversion of fluid prediction, which will affect the success rate of exploration and development.
Ruyi Zhang, Huazhong Wang
doaj   +1 more source

Seismic Lithofacies Distribution Modeling Using the Single Normal Equation Simulation (SNESIM) Algorithm of Multiple-Point Geostatistics in Upper Assam Basin, India [PDF]

International Journal of Mathematical, Engineering and Management Sciences, 2021
Recently, multiple-point geostatistical simulation gained much attention for its role in spatial reservoir characterization/modeling in geosciences. Accurate lithofacies modeling is a critical step in the characterization of complex geological reservoirs.
Nagendra Babu Mahadasu, Venkatesh Ambati, Rajesh R. Nair   +2 more
doaj   +1 more source