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Application of elastic impedance: A case study from Mahanadi Basin, India

[...] is a reasonably effective tool. The inversion starts with calibration of the well with seismic data. The synthetic seismogram is tied with stacked seismic data on the basic premise that the [...]

An improved gas-reservoir delineation from seismic-derived impedance and density...

[...] rock. Based on that result, an acoustic-inversion exercise was performed over the existing seismic data to interpret lateral heterogeneities associated with gas saturation. However, the well-known [...]

Increasing the effective bandwidth of seismic data through sparse-layer inversio...

[...] major challenge for reservoir characterization when based on well data alone. Conventional 3D seismic data do not resolve the thin FM1 sands. For more accurate reservoir modeling, various techniques, [...]

Elastic velocity analysis and time-lapse full-waveform inversion

[...] . With the introduction of inversion techniques designed to use the amplitude properties of seismic data also, such as full-waveform inversion, one can no longer use the simple acoustic approximation [...]

Introduction to this special section: Humanitarian geophysics

[...] This special section of The Leading Edge and the broad engagement from the SEG community show that geophysics can [...]

Introduction to this special section: Near-surface geophysics

[...] for the present, and search for and protect groundwater for future generations. This special section of The Leading Edge covers a broad range of terrestrial and marine applications of near- [...]

Introduction to this special section: Sensor technology and nanotechnology

Geophysics students taking their first seismic data processing course during their freshman year often wonder how we seem to be perfectly happy with s [...]

Introduction to this special section: Time-frequency applications

[...] This special section augments a 2014 SEG postconvention workshop titled "Latest developments in time- [...]

Seismic inversion and AVO analysis applied to predictive-modeling gas-condensate...

[...] marine sequence known as the Porquero Formation was laid down in basin-floor conditions. Seismic inversion carried out on new and existing 2D seismic data helped to focus early exploration on a [...]

Seismic inversion for organic richness and fracture gradient in unconventional r...

A method using Eagle Ford organic shale from Texas predicts key unconventional reservoir properties, total organic carbon (TOC), and fracture pressure [...]

Elastic seismic inversion and reservoir characterization in the Llanos Basin, Co...

[...] The contribution of seismic inversion to lithology and fluid characterization in oil reservoirs is geology and data dependent. [...]

Integration of rock physics, seismic inversion, and support vector machines for ...

[...] facies and elastic properties in the reservoirs. Subsequently, through simultaneous seismic inversion, it was possible to generate P- and S-wave impedances and density volumes, using a priori [...]

3D VSP and surface full-azimuth seismic integrated study in northeastern China

[...] and anisotropy parameters estimated from VSP are applied to 3D seismic processing. Reservoir characterization and gas-saturation prediction with final images showed encouraging results. Suggested [...]

Elastic seismic inversion and reservoir characterization in the Llanos Basin, Co...

[...] characterization in oil reservoirs is geology and data dependent. Several studies of reservoir characterization based on elastic seismic inversion in the Llanos Basin in Colombia have proved to be [...]

Increasing the effective bandwidth of seismic data through sparse-layer inversio...

[...] , correlation of floodplain shales and fluvial sands poses a major challenge for reservoir characterization when based on well data alone. Conventional 3D seismic data do not resolve the [...]

Application of elastic impedance: A case study from Mahanadi Basin, India

[...] interpretation step during exploration as well as development of fields. For detailed reservoir characterization, prestack inversion is desirable; however, poststack inversion is a reasonably [...]

Drilling-risk assessment with joint electromagnetic and seismic data

[...] traps as well as seismic attributes, can significantly reduce drilling risks for oil and gas exploration. The number of practical projects also supports the conclusion. Joint interpretation works at [...]

Carbonate reservoirs dominated by secondary storage space: Key issues and techni...

[...] complicated. All these characteristics make it a world-class challenge for oil and gas exploration and production. Conventional poststack methods ignore the complexity of the reservoir [...]

Velocity-independent and data-driven prestack time imaging: It is possible

[...] , and its solution would dramatically change seismic processing and improve oil and gas exploration. Several attempts have been made in the last two decades to obtain such a result, and [...]

Deep groundwater prospecting in Mexico City through seismic-reflection methodolo...

[...] method, combined with interpretation techniques developed and commonly used for oil and gas exploration, can be adapted to drinking-water prospecting. [...]

Enhanced imaging with high-resolution full-waveform inversion and reverse time m...

[...] part of the reservoir is in a seismically obscured area (SOA) caused by the gas. Full-waveform inversion (FWI) and reverse time migration (RTM) dramatically improve the imaging from ocean- [...]

A robust imaging workflow to take advantage of long-offset broadband data acquis...

[...] environments. Two-way wave-equation algorithms, such as reverse time migration (RTM) and full-waveform inversion (FWI), are required to optimally use these improved data. Their high-fidelity nature [...]

Elastic velocity analysis and time-lapse full-waveform inversion

[...] techniques designed to use the amplitude properties of seismic data also, such as full-waveform inversion, one can no longer use the simple acoustic approximation to describe seismic waves but [...]

Application of elastic impedance: A case study from Mahanadi Basin, India

[...] of confidence in inversion results. The possible solution, such as simultaneous or full-waveform inversion, involves a lot of computation time and hardware requirements. An alternative [...]

Broadband laboratory measurements of dispersion in thermally cracked and fluid-s...

[...] In the field, the seismic waves used for active-source imaging typically contain frequencies from 10 to about 100 Hz, with [...]

Introduction to this special section: Attenuation dispersion

[...] Extracting quantitative reservoir rock and fluid properties from seismic waves is of paramount importance to improve reservoir productivity and well targeting. There have [...]

Wave attenuation in partially saturated porous rocks -- New observations and int...

[...] Seismic waves propagating in porous rocks saturated with two immiscible fluids can be strongly attenuated. [...]

Elastic velocity analysis and time-lapse full-waveform inversion

[...] effects and has been designed to use the information contained in the kinematic part of seismic waves. With the introduction of inversion techniques designed to use the amplitude properties of [...]

Probabilistic facies discrimination from simultaneous seismic-inversion results ...

[...] . P- and S-wave impedance bivariate probabilistic density functions (PDF) were computed from well-log data as an a priori probability. Finally, these PDFs were used to classify facies from P- and S- [...]

Elastic seismic inversion and reservoir characterization in the Llanos Basin, Co...

[...] , which exhibits larger densities than sand. In the analysis of properties calculated from well-log data, the separation in property space of oil sands and brine sands is moderate to small. Oil sands [...]

Deep groundwater prospecting in Mexico City through seismic-reflection methodolo...

[...] . The acquisition of reflection seismic, the reprocessing of old 2D lines, the reprocessing of well-log data, and the use of gravity data allowed the creation of an earth model of the studied area, [...]

Wave attenuation in partially saturated porous rocks -- New observations and int...

[...] . Decoding these effects involves interpreting laboratory experiments, analyzing well-log data, and performing numerical simulations. Despite striking differences among scales, flow [...]

Seismic inversion and AVO analysis applied to predictive-modeling gas-condensate...

[...] featureless seismic cube. Workflows were based on careful rock-physics analysis, simultaneous seismic inversion, and AVA analysis supported by custom well-log and seismic-gather conditioning. Work [...]

Integration of rock physics, seismic inversion, and support vector machines for ...

[...] lithologic facies and elastic properties in the reservoirs. Subsequently, through simultaneous seismic inversion, it was possible to generate P- and S-wave impedances and density volumes, using a [...]

Probabilistic facies discrimination from simultaneous seismic-inversion results ...

[...] the signal-to-noise ratio was increased. Two angle stacks were generated to perform a simultaneous seismic inversion to obtain P- and S-wave impedance volumes. Parallel to the inversion process, rock- [...]

?Key Phrases
Application of elastic impedance: A case study from Mahanadi Basin, India

[...] is a reasonably effective tool. The inversion starts with calibration of the well with seismic data. The synthetic seismogram is tied with stacked seismic data on the basic premise that the [...]

An improved gas-reservoir delineation from seismic-derived impedance and density...

[...] rock. Based on that result, an acoustic-inversion exercise was performed over the existing seismic data to interpret lateral heterogeneities associated with gas saturation. However, the well-known [...]

Increasing the effective bandwidth of seismic data through sparse-layer inversio...

[...] major challenge for reservoir characterization when based on well data alone. Conventional 3D seismic data do not resolve the thin FM1 sands. For more accurate reservoir modeling, various techniques, [...]

Elastic velocity analysis and time-lapse full-waveform inversion

[...] . With the introduction of inversion techniques designed to use the amplitude properties of seismic data also, such as full-waveform inversion, one can no longer use the simple acoustic approximation [...]

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