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The AAPG/Datapages Combined Publications Database

Showing 34,496 Results. Searched 200,674 documents.

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Reservoir Characterization and Modeling: A Look Back to See the Way Forward

Xinghe Yu, Y. Zee Ma, David Psaila, Paul La Pointe, Ernest Gomez, Shengli Li

AAPG Special Volumes

...-to-noise ratio at large angles make it possible to resolve three elastic properties. A limited range of angles and poor signal-to-noise ratio limit...

2011

Enhancing conventional VSP data to broadband and its quantitative improvement on lookahead inversion

Hussain Almarzooq

International Meeting for Applied Geoscience and Energy (IMAGE)

... to boost them up above the noise level without reducing the signal to noise ratio. To answer that, Bertram and Margrave (2010) compared three datasets...

2022

Joint VTI and Mud Slowness Inversion Using Multiple Modes and Adaptive Weighting

Mark Collins

Unconventional Resources Technology Conference (URTEC)

... weighting. If the dispersion curve drifts or oscillates wildly at low or high frequency because of a poor signal-noise ratio (SNR), the weighting...

2013

AVA on communication cables: Principles and Examples from the North Sea

Ran Bachrach, Ali Sayed, Andrea Murineddu, Pilar Di Martino

International Meeting for Applied Geoscience and Energy (IMAGE)

...re, care is needed while correcting for directivity and in general, AVO analysis will suffer from a poor signal-to-noise ratio (SNR) at the near offse...

2024

Stabilizing two-term clock-drift inversion in ocean-bottom node processing

Beng Seong Ong, Zhaojun Liu, Carsten Udengaard

International Meeting for Applied Geoscience and Energy (IMAGE)

... as correcting the differences in water velocity, node position and clockdrift will improve the 4D signal to noise ratio. Each receiver node has 5 unknown...

2024

Effect of near offset seismic data in shallow subsurface modeling using full-waveform inversion

Md Iftekhar Alam, Salman Abbasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... of pros and cons. Seismic data from shallow subsurface are typically low in signal-to-noise (S/N) ratio. This becomes a very critical factor in shallow...

2024

VTI anisotropic stiffness tensor logging: A case study

Kristoffer Walker, Alexei Bolshakov, Gama Firdaus, Tim Fischer, Luca Duranti, Luisa Crousse, Mason Edwards

International Meeting for Applied Geoscience and Energy (IMAGE)

... is a slowness threshold that was chosen based on the signal-to-noise ratio of the refracted shear arrival. Below that threshold, refracted shear...

2024

An Analysis of the Implicit Assumptions of the Methodology of Seismic Sequence Stratigraphy: Chapter 21: Sea-Level and Seismic Stratigraphic Studies

Julian A. Thorne

AAPG Special Volumes

... geometry "signal-to-noise" ratio. The pitfalls of seismic interpretation due to poor seismic imaging have been discussed by many (e.g., McQuillin et al...

1992

Imaging Shallow Reservoirs through Innovation

Jane Whaley

GEO ExPro Magazine

... to a conventionally resolution and improved signal to the surface and get entangled with it is acquired broadband line shot over noise ratio owing to the superior...

2017

The Effect of Velocity Uncertainty and Attenuation on Flow Estimates From Microseismicity

Oleg V. Poliannikov, Michael Fehler, Alison Malcolm

Unconventional Resources Technology Conference (URTEC)

...The Effect of Velocity Uncertainty and Attenuation on Flow Estimates From Microseismicity Oleg V. Poliannikov, Michael Fehler, Alison Malcolm URTeC...

2015

The Use of Magneto-Telluric Surveying as a Risk Reduction Tool for Hydrocarbon Exploration in the Papuan Foldbelt

J. K. Bennett, M. Parish

Papua New Guinea (PNG) Petroleum Convention Proceedings

... in the foldbelt (Figure 1). Early at­ tempts at acquiring seismic data in the region had resulted in poor quality sections, with a very low signal to noise ratio...

1993

Tulip Field 3D Coil Shooting Survey„Preliminary Data Processing Results

Michele Buia, Riccardo Vercesi, Michelle Tham, Dmitry Nikolenko, Andreas Tyasbudi Waluyo, Swee Leng Ng

Indonesian Petroleum Association

... signal-to-noise ratio and poor imaging related to the complex geology in the area. The data processing objectives were to address these challenges...

2010

Application of 3D converted wave processing technology in imaging of gas cloud area

Mingxing Xue, Zhijun Zhang, Jinhui Zhang, Zhen Ma

International Meeting for Applied Geoscience and Energy (IMAGE)

..., and then rotated back to improve the signal-to-noise ratio of the data. The (c) R component after correction Second International Meeting for Applied Geoscience...

2022

Geology-geophysics-data mining solution enhances the identification of deep fault-karst carbonate reservoirs

Fei Tian, Jiangyun Zhang, Wenxiu Zhang, Wenhao Zheng, Wang Zhang, Zhongxing Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... and enhances the imaging ability of seismic data to the internal structure of karst caves. Besides, the signal-to-noise ratio of the seismic signal...

2022

The impact of estimated temporal and spatial variability of water layer velocity on the correction of OBS data

Peter Scholtz, Truong Nguyen, Arash Jafar Gandomi

International Meeting for Applied Geoscience and Energy (IMAGE)

...-to-noise ratio (SNR). In the case of active seismic measurements, the direct wave arrivals can be employed to establish clock drift parameters for each node...

2023

Spectral Analysis of the Middle Triassic Latemar Limestone

Linda A. Hinnov, Robert K. Goldhammer

Journal of Sedimentary Research (SEPM)

... (the "signal-to-noise" ratio), will either appear as a local peak in the spectrum or be obliterated by the noise. In selecting an averaging, or resolution...

1991

Inversion of Magnetotelluric (MT) Data with Enhanced Structural Fidelity, #42333 (2018).

Federico Golfre Andreasi, Simone Re, Federico Ceci, Luca Masnaghetti

Search and Discovery.com

... an accurate description of the subsurface; however, in thrust-belt areas, the signal-to-noise ratio of the seismic reflections is severely reduced...

2018

Age significance of nC17/Pr ratios in forensic investigations of refined product and crude oil releases

Richard W. Hurst, Gene W. Schmidt

Environmental Geosciences (DEG)

... (inset) and the high signal-to-noise ratio. Baseline is shown as a dashed line.Figure 2. Representative high-resolution gas chromatograms of weathered...

2005

Application of finite difference eikonal solver for traveltime computation in forward modeling and migration

Amir Mustaqim Majdi, Seyed Yaser Moussavi Alashloo, Nik Nur Anis Amalina Nik Mohd Hassan, Abdul Rahim Md Arshad, Abdul Halim Abdul Latiff

Geological Society of Malaysia (GSM)

... or receivers can be set to obtain seismic image with good signal to noise ratio. Consequently, based on the good responses upon testing on the synthetic data...

2021

Amplitude enhancement of far-offset refractions via machine learning

Lurun Su, Han Wang, Jie Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... as labels. The input and labels need to be normalized. A total of 19,650 sample pairs are obtained. The signal-tonoise ratio (S/N) is calculated...

2022

Integrated Gas While Drilling Analysis to Optimize Reservoir Fluid Characterization: An Example From Plover Formation in Eastern Indonesia

Birgita Laksmi Novitasari, Ari Wibowo, Leon Taufani, Hizbina Khanaif

Indonesian Petroleum Association

..., etc. Gas-data Quality Ratio (GQR) was calculated in order to determine any contamination in the data, whereas gas ratio analysis was conducted...

2017

Abstract: Application of Target-oriented VVAZ on Relatively thin Fracture Reservoir; #90174 (2014)

Stephen K. Chiu, Jack Howell, Jason A Stein, Samik Sil, and Jeff Malloy

Search and Discovery.com

... becomes thin, the top reflected event interferes with the base event. Little research has been done to fully address the thickness limit and the overburden...

2014

Three-Dimensional Seismic Volume Visualization of Carbonate Reservoirs and Structures

Jose Luis Masaferro, Ruth Bourne, Jean Claude Jauffred

AAPG Special Volumes

... in two different ways. The first approach is to improve the signal-to-noise ratio of the seismic data so that the traditional horizon-based...

2004

High-Speed Digital Computers in Stratigraphic and Facies Analysis

W. C. Krumbein , L. L. Sloss

AAPG Bulletin

...: Their Use in Estimating the Regional Effect," Geophysics, Vol. 20, pp. 295-306. PARKER, MARGARET A., 1952, "Punched-Card Techniques Speed Map Making...

1958

Seismic HC Reservoir Prediction: A (Critical) Review on the Determination of Lithological Parameters from Seismic Data

Burkhard Buttkus

Geological Society of Malaysia (GSM)

..., as in the shown example, is still the exception. The Signal to Noise ratio is genenilly lower than for P-wave measurements and much more headwaves are generated...

1985

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