Results 271 to 280 of about 4,754 (309)
Some of the next articles are maybe not open access.
An 'Inverse CCS Site' in NW Hungary – Geology and Modeling
Proceedings, 2012The research of natural analogues for future CCS projects is a dynamically growing sector of geoengineering. In our work this newly discovered aspect of a CO2 field is presented. In NW Hungary there is a field utilized for more than 60 years. Thus there is a large amount of data from hydrocarbon exploration, gas measurements, seismic sections, well ...
C.S. Király +4 more
openaire +1 more source
Multiparameter Data-Space Reflectivity Full Waveform Inversion in Complex Geology
Saint Petersburg 2020, 2020Summary A reliable numerical method to solve inverse dynamic problem for elastic waves equation is proposed. This method is based on nonlinear least-squares formulation which is widely known as Full Waveform Inversion (FWI). The key issue on this way is correct reconstruction of macrovelocity component of the model with input seismic data without time ...
K. Gadylshin, V. Cheverda
openaire +1 more source
Integration of geology and geophysics through geostatistical inversion: a case study
First Break, 2011Geostatistical inversion of seismic data can be used to build highly detailed reservoir models with integration of information from diverse sources. A key to successful integration is the solution for facies during the inversion, provided that the facies definition is meaningful in the elastic, petrophysical, geological, and reservoir engineering ...
M. Sams +4 more
openaire +1 more source
Computational Geology 11 – Uniformitarianism and the Inverse Problem
Journal of Geoscience Education, 2000(2000). Computational Geology 11 – Uniformitarianism and the Inverse Problem. Journal of Geoscience Education: Vol. 48, No. 3, pp. 373-381.
openaire +2 more sources
Geology-guided Quantification of Production-Forecast Uncertainty in Dynamic Model Inversion
SPE Annual Technical Conference and Exhibition, 2011Abstract The presence of a large number of geologic uncertainties and limited well data typically increase the challenges associated with hydrocarbon recovery forecasting. Although recent advances in geologic modeling enable the automation of the model generation process by means of next-generation geostatistical tools, the computation ...
Marko Maucec, Stan Cullick, Genbao Shi
openaire +1 more source
A Forward Glimpse Into Inverse Problems Through a Geology Example
PRIMUS, 2012This paper describes a forward approach to an inverse problem related to detecting the nature of geological substrata which makes use of optimization techniques in a multivariable calculus setting. The true nature of the related inverse problem is highlighted.
openaire +1 more source
Depth-Domain Pre-Stack 4D Seismic Inversion in Complex Geology
81st EAGE Conference and Exhibition 2019, 2019Present industry 4D workflows normally use the co-processing and imaging of baseline and monitor surveys with the same depth-interval velocity model. Standard practice is to re-align the migrated offset or angle stacks vintages with dynamic 1-D Warping and extract amplitude differences for 4D interpretation.
C. Gerea +4 more
openaire +1 more source
Inversion of regional gravity anomalies and main features of the deep crustal geology of India
Tectonophysics, 1989Abstract Long-wavelength gravity field variations provide an important geophysical tool for delineating structural features of the deeper parts of the Earth's interior. Continuous developments in data-processing and inversion techniques have led to refinements in regional- as well as planetary-scale structural models.
J.G. Negi, P.K. Agrawal, N.K. Thakur
openaire +1 more source
Inverse Methods to Combine Geology, Geostatistics and Multiphysic Data
Proceedings, 2012Inverse methods are used to infer model parameters from observed data that are related via random or deterministic functions. Their application to Earth Sciences has expanded more recently to encompass the problem of data and information integration considering the combination of multiple geophysical data surveys, information of multiple properties ...
openaire +1 more source
Chinese Journal of Geophysics, 2016
AbstractThe small‐scale discontinuous and inhomogeneous geologies, such as tiny faults, cavities and fractures, play an important role in reservoir analysis. However, effectively extracting them from seismic imaging data is a challenging problem, as their seismic responses are much weaker than reflections' from large‐scale structures. On the other hand,
ZHAO Jing‐Tao +5 more
openaire +1 more source
AbstractThe small‐scale discontinuous and inhomogeneous geologies, such as tiny faults, cavities and fractures, play an important role in reservoir analysis. However, effectively extracting them from seismic imaging data is a challenging problem, as their seismic responses are much weaker than reflections' from large‐scale structures. On the other hand,
ZHAO Jing‐Tao +5 more
openaire +1 more source