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The discovery of the Barmer Basin, Rajasthan, India, and its petroleum geology
, 2015The discovery of oil and gas in the Barmer Basin in northwest India was one of the more significant global discoveries in the decade 2001–2010. The basin’s presence was suspected from gravity and magnetic data in the late 1980s but not confirmed until ...
J. Dolson +9 more
semanticscholar +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 ...
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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.
N.K. Thakur +2 more
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3D Inversion of Ultradeep Electromagnetic Data, the Key to Understanding Complex Subsurface Geology
Day 3 Wed, November 04, 2020, 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).
David Marchant +5 more
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, 2014
Recent computational improvements allowed us to simulate elastic wavefields in a 3D manner and undertake the challenge of executing elastic full-waveform inversion (EFWI).
D. Vígh, K. Jiao, D. Watts, Dong Sun
semanticscholar +1 more source
Recent computational improvements allowed us to simulate elastic wavefields in a 3D manner and undertake the challenge of executing elastic full-waveform inversion (EFWI).
D. Vígh, K. Jiao, D. Watts, Dong Sun
semanticscholar +1 more source
Depth Domain Inversion Case Study in Complex Subsalt Area
, 2015Geophysical reservoir characterisation in a complex geologic environment remains a challenge. Conventional amplitude inversion assumes true seismic amplitudes.
L. Letki, J. Tang, X. Du
semanticscholar +1 more source
Journal of Environmental & Engineering Geophysics, 2008
Magnetic surveys of sites contaminated with unexploded ordnance (UXO) locate ferromagnetic sources and discriminate between UXO and some non-UXO (clutter) that can be left in place. High-pass, two-dimensional (2-D) intra-inversion filtering (IIF) is introduced as a partial solution to the vexing problem of overlapping fields of UXO, clutter, and ...
Chan Hong Park +2 more
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Magnetic surveys of sites contaminated with unexploded ordnance (UXO) locate ferromagnetic sources and discriminate between UXO and some non-UXO (clutter) that can be left in place. High-pass, two-dimensional (2-D) intra-inversion filtering (IIF) is introduced as a partial solution to the vexing problem of overlapping fields of UXO, clutter, and ...
Chan Hong Park +2 more
openaire +2 more sources
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.
R. Paterson +3 more
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GEOPHYSICS, 2017
Mineral exploration dynamics often requires an efficient and objective means of evaluating a prospect in early exploration stages, when few holes have been drilled. In the case of deep prospects or prospects under cover, this evaluation will mostly be based on geophysical data. To develop an objective interpretation method capable of combining all the
Aline Tavares Melo +2 more
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Mineral exploration dynamics often requires an efficient and objective means of evaluating a prospect in early exploration stages, when few holes have been drilled. In the case of deep prospects or prospects under cover, this evaluation will mostly be based on geophysical data. To develop an objective interpretation method capable of combining all the
Aline Tavares Melo +2 more
openaire +2 more sources
, 2014
Summary A high-resolution approach to tomographic velocity model updating is described, combining advanced techniques to avoid simplifications which conventional tomography relies on, in order to yield geologically plausible models with greater accuracy ...
G. Hilburn +3 more
semanticscholar +1 more source
Summary A high-resolution approach to tomographic velocity model updating is described, combining advanced techniques to avoid simplifications which conventional tomography relies on, in order to yield geologically plausible models with greater accuracy ...
G. Hilburn +3 more
semanticscholar +1 more source