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The AAPG/Datapages Combined Publications Database

Showing 1,739 Results. Searched 200,619 documents.

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Describing Difficult Shell-Hash Assemblages from the Lower Cambrian Soltanieh Formation, Alborz Mountains, Northern Iran

Amelia Lindsay-Kaufman, Stephanie A. Rosbach, Lauren S. Wright, Emily L.V. Edwards, Seyed Hamid Vaziri, Mahmoud Reza Majidifard, Tara Selly, Marc Laflamme, James D. Schiffbauer

PALAIOS

... at an oblique angle. I) Two tri-radially symmetric fossils with pronounced lobes. J) Tri-radially symmetric fossil where the interior material has been...

2022

Mid Eocene Planktonic Correlations: Northern Italy-Jamaica, W. I.

Sherwood W. Wise, Jr. , Richard E. Constans

GCAGS Transactions

.... The keels are not strictly symmetric about the long axis. Remarks: This genus is distinguished from Triquetrorhabdulus Martini, 1965 and Lithraphidites...

1976

Fracture Characterization of the Montney Formation Using Amplitude Inversion of Converted Wave Seismic

Tyler L. MacFarlane, Thomas Davis

Unconventional Resources Technology Conference (URTEC)

.... and B. Ragan (1996). Mega-Bin: Toward a Cost Effective Near Symmetric Patch Geometry For Improved S/N and Resolution From Regular Acquisition Sampling...

2015

Transformer-based deep learning model for accurate rate of penetration prediction in drilling

Carlos Urdaneta, Cheolkyun Jeong, Xuqing Wu, Jiefu Chen

International Meeting for Applied Geoscience and Energy (IMAGE)

... predictions of future ROP with a time horizon of 10 minutes. The symmetric mean absolute percentage error (SMAPE) for this prediction is 7.3...

2023

Estimating Stimulation-Zone Anisotropy Effects During Microseismic Monitoring

Martin Karrenbach, Steve Cole, Victor Yartsev

Unconventional Resources Technology Conference (URTEC)

... to the top and bottom receivers of the array. Raypaths include relatively simple direct arrivals and more complex refracted ray paths. Given the symmetric...

2015

Integral equation based wellbore preconditioner for 3D electromagnetic response modeling

Marcus Elliott, Mark Everett

International Meeting for Applied Geoscience and Energy (IMAGE)

... symmetric 3-D conductive zones (left and right) are placed on either side of the wellbore; these zones could represent a fluid-rich zone or any other...

2023

Understanding Multiples to Upgrade Low-Relief Prospects

Sunu H. Praptono, Witan O. Ardjakusumah

Indonesian Petroleum Association

... (i.e. by spreading all traces within 25 to 30% of the conventional length for a given target depth) is to acquire better seismic data. Symmetric split...

1996

Pyseis: A high-performance, user-friendly Python package for GPU-accelerated seismic modeling and subsurface imaging

Stuart Farris, Guillaume Barnier, Ettore Biondi, Robert Clapp

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity, and si j is a component of the symmetric stress tensor (Aki and Richards, 2002). The source terms, fi and mi j , represent a volumetric force...

2023

3D installation of fiber cables for acquiring 3C DAS array data

Yingping Li, David Li, Lianjie Huang, Yingcai Zheng

International Meeting for Applied Geoscience and Energy (IMAGE)

.... We use synthetic DAS amplitudes of any symmetric fiber sensor pair on the two orthogonal axes, such as [(x=0m, y=40m), (x=40m, y=0m)] in a map view...

2023

Automatic well-log baseline correction via deep learning for rapid screening of potential CO2 storage sites

Misael M. Morales, Carlos Torres-Verdín, Michael Pyrcz, Murray Christie, Vladimir Rabinovich

International Meeting for Applied Geoscience and Energy (IMAGE)

... and 𝑈 is the unit step function. The symmetric infinite impulse response (IIR) filter is written as 𝑐 (6) 𝓘𝑿= , (1 − 𝑧⁄ 𝑥)(1 − 𝑧𝑥) where...

2024

Ordovician Basin Analysis of China

Chen Xu, Zhang Yuan-dong, Li Yue

Pacific Section SEPM

... of the western margin, the North China Paleoplate as semi-symmetric, with the centre of the North China platform near Jinan, and the eastern boundary...

1995

Semi-inverse relationship between critical angle and reflectivity coefficient, and its implication in seismic survey design, processing, and interpretation

Chen Bao

International Meeting for Applied Geoscience and Energy (IMAGE)

... demonstrated above will still govern the angle range even for soft reflectors. First, subsurface sediments will create symmetric or nearsymmetric...

2024

Post Steam Breakthrough Strategy in Area 8 of the Duri Field

Agus Sulistyo, Dijan Priambodo, Eden S. Tambunan, Any Linawati, Eriswandi, Hari Primadi, Adi Widyantoro, K. D. Kimber

Indonesian Petroleum Association

... patterns and then growth was relatively symmetric. Therefore this information support that better sweep efficiency is being achieved with PSBT...

2000

Nonparametric Bayesian approach for robust depth uncertainty estimation from seismic velocity and anisotropy tradeoffs

Jinsong Chen, Sizhuang Deng, Min Yang, Andrey Shabelansky, Cory Hoelting, Huafeng Liu, Maisha Amaru

International Meeting for Applied Geoscience and Energy (IMAGE)

... approach is more symmetric around the reference model, which shows the robustness of the Bayesian method. Conclusions We developed a nonparametric...

2024

Diagenesis, Deformation and Fluid Flow in the Miocene Monterey Formation; Frontmatter and Roadlog

Peter Eichhubl, Richard J. Behl

Pacific Section SEPM

... of the bluffs down to the beach. In both fold limbs, notice symmetric, disharmonious chevron folds of 2030 cm amplitude in thin bedded, laminated chert...

1998

An Integrated Study of Geophysical, Petrophysical, and Geochemical Data to Define Optimal Reservoir Development of the Avalon Shale in the Salado Draw Field, Delaware Basin, Lea County, New Mexico

Megan Swenberg, Kenneth M. Schwartz, Meghan Hoffnagle, Miguel Merino, Patrick Taha, Don Sherlock, John Best

Unconventional Resources Technology Conference (URTEC)

... ack I variable produc ction from well after the frac ls ck from more symmetric fra geometry. In fact, Figure 6 shows less v c h lative to the we...

2017

Transformer-based network for an efficient ground roll suppression

Randy Harsuko, Omar Saad, Tariq Alkhalifah

International Meeting for Applied Geoscience and Energy (IMAGE)

...-attention works along the traces, please refer to Harsuko and Alkhalifah (2022). 4. The prediction head (output layer). It consists of a symmetric...

2024

Application of Data Analytics for Production Optimization in Unconventional Reservoirs: A Critical Review

Srikanta Mishra, Luan Lin

Unconventional Resources Technology Conference (URTEC)

...]. The proximity statistic is a measure of similarity of different data points to one another in the form of a symmetric matrix with 1 on the diagonal...

2017

Statistical imaging through strongly scattering near-surface with path summation techniques

Andrey Bakulin, Ilya Silvestrov, Maxim Protasov, Dmitry Neklyudov

International Meeting for Applied Geoscience and Energy (IMAGE)

... by summing the images obtained from the ensemble. We show that image traces undergo symmetric phase perturbations, which cancel out during the summation...

2024

Kriging-based surrogate models for convergence acceleration of Markov chains: An example of magnetotellurics-dix joint inversion

Alejandro Quiaro, Mauricio D. Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... probability. If the probability function g is symmetric (for example, a Gaussian distribution), the probability of proposing mn+1 when the current state is mn...

2024

Preliminary Results from a Planform Kinematic Model of Orogen Evolution, Surface Processes and the Development of Clastic Foreland Basin Stratigraphy

David D. Johnson, Christopher Beaumont

Special Publications of SEPM

... a model back-to-back Coulomb orogen takes the form of orogen takes the form of symmetric back to back Coulomb wedges which grow by accretion...

1995

Computer Simulation of the Yates Formation (Permian, Delaware Basin) - Sequence Stratigraphy and Shelf-to-Basin Correlation Implications

James M. Borer, Paul M. Harris

West Texas Geological Society

... formed from symmetric sinusoidal sea-level fluctuations. Shape of the Sea-Level Curve Based on the asymmetry of Yates 4th-order (30-m, 400-k.y...

1995

Towards wave-equation ambient noise tomography of a landslide: The Harmalière case study

Giuseppe Provenzano, Grégory Biévre, Romain Brossier, Stéphane Garambois, Ludovic Métivier

International Meeting for Applied Geoscience and Energy (IMAGE)

... lags and value respectively above and below a threshold, are rejected (Maggi et al., 2009). For each selected 1-second long symmetric window...

2024

Impact of Pore Pressure Depletion on Stress Reorientation and its Implications on the Growth of Child Well Fractures

Shivam Agrawal, Mukul Sharma

Unconventional Resources Technology Conference (URTEC)

... fracture. (a) Symmetric growth till it sees the depleted region, (b) Asymmetric growth afterwards. 6.2. Both P1 and P2 depleted equally, child well...

2018

Regional Geology of the Pierce Member of the Upper Morrow Formation in the Anadarko Basin

Brad S. Johnson

Rocky Mountain Association of Geologists

.... The column is keyed to the El Paso No. 1-9 Pierce (Sec 9, T13N, R25W). basin became compressional with its shape changing from symmetric to asymmetric...

1990

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