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The AAPG/Datapages Combined Publications Database

Showing 17,675 Results. Searched 195,689 documents.

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Gas Hydrates: Part III: Rock Physics Hydrate Experiments

Lasse Amundsen, Martin Landrø

GEO ExPro Magazine

... emphasis on a recent lab experiment performed in China. Seismic Attenuation Like the presence of free gas, the presence of gas hydrate affects seismic...

2012

Stop Treating Diffractions as Noise … Use them for Imaging of Fractures and Karst; #120057 (2012)

Mark Grasmueck, Tijmen Jan Moser, and Michael A. Pelissier

Search and Discovery.com

...Stop Treating Diffractions as Noise … Use them for Imaging of Fractures and Karst; #120057 (2012) Mark Grasmueck, Tijmen Jan Moser, and Michael...

2012

Diving wave tomography: Velocity modelling using first arrival traveltime

Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu

Geological Society of Malaysia (GSM)

... particularly when seismic data has poor signal-to-noise ratio (SNR) with complex geologic settings where no clear reflector is present. Considering...

2022

Use of SEASAT-Derived Free-Air Gravity to Interpret the Crustal Structure of Southeast Asia

M. T. Angelich

Indonesian Petroleum Association

... is processed in frequency space. It is common in such processing to apply a high frequency attenuation filter to improve the signal-to-noise ratio. Haxby...

1986

Comparing Seismic Resolution and Signal and Noise Quality between Dense Point-Receiver and Conventional Data, Bakken Formation, North Dakota; #41160 (2013)

Niranjan Banik, Antoun Salama, Adam Koesoemadinata, George El-Kaseeh, Mark Egan, and Alfonso Gonzalez

Search and Discovery.com

...Comparing Seismic Resolution and Signal and Noise Quality between Dense Point-Receiver and Conventional Data, Bakken Formation, North Dakota; #41160...

2013

Broadband Least-Squares Wave-Equation Migration

Shaoping Lu, Andrew Long, Alejandro Valenciano, Nizar Chemingui

Petroleum Exploration Society of Australia (PESA)

... implementation combines the one-way extrapolator with fast linear inversion solvers into an efficient migration inversion system. Application to the 2D...

2018

Abstract: Estimation of Q-factor and Phase Velocity Using the Recovered Stress-strain Relaxation Spectrum; #90172 (2014)

Dali Zhang, Michael P. Lamoureux, Gary F. Margrave

Search and Discovery.com

... – Volume 21. Fig. 1 True and computed Q-factor (left) and phase velocity (right) for data with 1.0%, 1.5% and 2.5% noise for the standard linear solid...

2014

Multivariate Pattern Recognition and Classification Methods: Chapter 4

John H. Doveton

AAPG Special Volumes

...) developed a blocking algorithm that allowed the stipulation of the length of a filter window and a noise-level cutoff (Figure 3). Lanning and Johnson...

1994

Velocity Model Building Using Tilted Orthorhombic Depth Imaging for Full Azimuth Seismic Data

Yunfeng (Fred) Li, Qiaofeng Wu, Chuen-Song Chen

GCAGS Journal

... coverage as much as 10 km with reciprocity is shown in a rose diagram (Fig. 4). After the preprocessing sequences—noise attenuation, designature...

2013

Identifying Re-Stimulation Effectiveness by Utilizing Microseismic Attributes

M. Preiksaitis, A. Baig, S. Bowman-Young, T. Urbancic

Unconventional Resources Technology Conference (URTEC)

...low frequency plateau, corner frequency, and attenuation factor Q in frequency domain (Viegas, et al. 2013) for all events with a sufficient signal-to-no...

2016

Microseismic Event Location Using Multiple Arrivals: Demonstration of Uncertainty Reduction

Zhishuai Zhang, James W. Rector, Michael J. Nava

Unconventional Resources Technology Conference (URTEC)

..., and low signal to noise ratio. The developed method can effectively improve the accuracy of microseismic event location and proposes a better acquisition...

2015

An approach to reduce exploration risk using spectral decomposition, prestack inversion, and seismic facies classification

Carlos Jesus, Wagner Moreira Lupinacci, Patricia Takayama, Joana Almeida, and Danilo Jotta Ariza Ferreira

AAPG Bulletin

... al., 2005), and attenuation estimation and correction (Lupinacci and Oliveira, 2015), therefore helping to decrease uncertainties encountered during...

2020

Case Study: Can We Use Angle Gathers to Detect Fracture Distribution of Carbonate Reservoir in Rama Field?

Zha Chaoyang, Sun Pengxiao, Shen Xiaohong, Wen Shuliang, Tang Donglin, Heng Liqun

Indonesian Petroleum Association

... intercept and gradient from a linear fit of P-wave reflection amplitude to the sine square of the angleof-incidence, which contains implied information...

2013

Physical Processes and Fine-grained Sediment Dynamics, Coast of Surinam, South America

John T. Wells, James M. Coleman

Journal of Sedimentary Research (SEPM)

... on a falling or rising tide. Redeposition of mud may occur near time of high tide. The strong attenuation of shallow-water waves by these muds provides...

1981

Abstract: 3D Coil Shooting Survey on Tulip Field: Data Processing Overview … Planning, Challenges and Opportunities (Geophysics Poster 18)

Michelle Tham, Michele Buia, Riccardo Vercesi, Swee Leng Ng, Andreas Tyasbudi Waluyo, Suyang Chen

Geological Society of Malaysia (GSM)

... extremely low amplitude or near invisible target reflections, very low signal-to-noise ratio (S/N), poor imaging and poor illumination of the reservoirs...

2011

Abstracts: A New f-p Domain Weighting Function in Minimum Weighted Norm Interpolation of Seismic Data; #90173 (2015)

Zhengsheng Yao, Mike Galbraith, and Randy Kolesar

Search and Discovery.com

... (rather than the noise events), a weighting function is employed as a constraint. Such algorithms are usually referred to as Minimum Weighted Norm...

2015

Deep compressed learning for 3D seismic inversion

Maayan Gelboim, Amir Adler, Yen Sun, Mauricio Araya-Polo

International Meeting for Applied Geoscience and Energy (IMAGE)

... that small noise variations may alter the solution significantly. The solution of 3D seismic inversion problems using deep learning (DL) is an emerging field...

2023

Abstract: New Approach to Finite-Difference Memory Variables by Using Lagrangian Mechanics; #90187 (2014)

Wubing Deng and Igor Morozov

Search and Discovery.com

..., Saskatchewan [email protected] Summary In numerous algorithms for finite-difference modeling of seismic waves, the effects of attenuation...

2014

Deep neural networks for 1D impedance inversion

Vladimir Puzyrev, Anton Egorov, Anastasia Pirogova, Chris Elders, Claus Otto

Petroleum Exploration Society of Australia (PESA)

... to obtain. Hence, we also study the impact of extending the training data by adding random noise to the modelled examples. We observe that enlarging...

2019

Three-Dimensional Seismic Analysis in the Characterization of a Giant Carbonate Field, Onshore Abu Dhabi, United Arab Emirates

Peter Melville, Omar Al Jeelani, Saeed Al Menhali, Jürgen Grötsch

AAPG Special Volumes

... attenuation was also used to reduce the random noise not removed by the stack process.FIGURE 8. A 3-D seismic section from the crest to the flank...

2004

Relating Fractures in the Eastern Greater Green River Basin to Oil and Gas Fields: Integrating Field Measurements, Linear Features, and Digital Geologic Data

Cheryl Jaworowski, Robert Simon

Wyoming Geological Association

... on the enhancement or attenuation of linear features (Figure 2B–E). Use of an appropriate solar azimuth and elevation highlights gravity and magnetic...

1995

Accurate Pore Size Measurement Via NMR On Unconventionals

Draga Veselinovic, Michael Dick, Derrick Green

Unconventional Resources Technology Conference (URTEC)

... for linear spaced CPMG data to be decimated into a much lower number of pulses prior to further processing into distributions and maps. Because...

2019

Sequential vertical gas charge into multilayered sequences controlled by central conduits

M. Foschi, J. A. Cartwright, and C. W. MacMinn

AAPG Bulletin

...-related acoustic changes are observed but they are uncorrelated with the shape of the AAs. Amp. = amplitude; Att. & PD = attenuation...

2018

Abstract: Surface-consistent Matching Filter for Time-lapse Processing; #90174 (2014)

Mahdi H. Almutlaq and Gary F. Margrave

Search and Discovery.com

..., in particular that of Rickett and Lumley (2001) who discuss the details of the cross-equalization process that reduces the nonrepeatable noise caused...

Unknown

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