Results 121 to 130 of about 2,059 (169)
Some of the next articles are maybe not open access.
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
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
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
Amplitude Inversion of Depth-imaged Seismic Data from Areas with Complex Geology
Proceedings, 2013Conventional amplitude inversion assumes that the input migrated image has preserved relative amplitude information and is free from the effects of illumination. Under this assumption, stretching a depth migrated image back to time and applying inversion based on 1D convolutional modeling can produce reasonable results. However, illumination effects in
S.H. Archer, X. Du, R.P. Fletcher
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
Progress in Defining Deeper Realistic Geology Using AEM 2.5D Joint Inversion
78th EAGE Conference and Exhibition 2016, 2016Including interpretations from airborne geophysical surveys to build geological models continues to improve outcomes for deriving more realistic geological representations. It is now highly practical for AEM data to be both forward modelled and inverted using 2.5D numerical approximations.
J. Silic +3 more
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
3D Inversion of Ultradeep Electromagnetic Data, the Key to Understanding Complex Subsurface Geology
Offshore Technology Conference Asia, 2020Abstract In complex reservoirs, the position of geological and fluid boundaries can vary significantly in all directions; for comprehensive reservoir understanding and optimal placement of the wellbore, these boundaries should be mapped and understood in three dimensions (3D).
Nigel Mark Clegg +5 more
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