Mitigating the effects of guided waves in OBN data for acoustic FWI using data reconstruction: A data example from the Yggdrasil area

M. A. H. Zuberi, E. Cho, T. Seher, R. Myklebust

International Meeting for Applied Geoscience and Energy (IMAGE)

...Mitigating the effects of guided waves in OBN data for acoustic FWI using data reconstruction: A data example from the Yggdrasil area M. A. H. Zuberi...

Abstract: Interwell Seismic Logging for Reservoir Continuity at the Gypsy Test Site, Oklahoma

Hughbert Collier, Jorge O. Parra, Brian J. Zook

West Texas Geological Society

... parameters. The principal application of this study is to identify and analyze the propagation characteristics of guided waves in the Gypsy-fluvial sandstone...

Fracture identification by reflected guided borehole radar waves

Binzhong Zhou, Jianjian Huo, Iain Mason, Qing Zhao

Petroleum Exploration Society of Australia (PESA)

.... They can interfere with normal BHR surveys and can be suppressed (Huo et al., 2018). However, drill-string guided BHR waves can be used for seeing...

Fracture imaging using DAS-recorded microseismic reflections

Yuanyuan Ma, David W. Eaton, Chaoyi Wang

International Meeting for Applied Geoscience and Energy (IMAGE)

... and imaging algorithms. Besides traditional P- and S-arrivals, DAS-recorded wavefields contain guided waves (Lellouch et al. 2020), near-field strain...

Abstract: Lamb Waves Recorded in Microseismic Monitoring Wellbores; #90174 (2014)

Andy St-Onge

Search and Discovery.com

... waves Lamb waves are a type of elastic guided wave that travels along a plate surface or along a cylindrical surface. They were first described by Lamb...

Abstract: Application of Acoustic Waveform Tomography to Marine Seismic Reflection Data Contaminated with Strong Guided Waves; #90187 (2014)

Rajesh Vayavur and Andrew. J. Calvert

Search and Discovery.com

...Abstract: Application of Acoustic Waveform Tomography to Marine Seismic Reflection Data Contaminated with Strong Guided Waves; #90187 (2014) Rajesh...

ABSTRACT: RTM Guided Migration Velocity Analysis: A West Africa Case History

Search and Discovery.com

Velocity model building for pressure and converted wave imaging using surface-DAS data: A North Sea case study

M. ElAttar, H. Malak, A. Cooke, O. Lewis, C. Thorgersen

International Meeting for Applied Geoscience and Energy (IMAGE)

... waves in the early arrivals and guided waves in relatively moderate to far offsets. In this case, the input data to FWI have undergone a gauge length...

Near-surface modeling by surface wave tomography inversion in oil and gas exploration

Wen Peng, Le Li, Zhonglin Cao, Guangying Wang, Pengfei Duan, Heng Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

.... It is necessary to calculate the propagation path of surface waves along the true ground. The triangle nets have high accuracy in describing rugged...

DAS: The survival toolkit for geophysicists in the wilderness of unconventionals

Ge Jin

International Meeting for Applied Geoscience and Energy (IMAGE)

... a waveguide that traps seismic energies in the form of Stoneley waves, which we refer to as guided waves. Guided waves can be excited and recorded when...

Are Tides Controlled by Latitude?

Search and Discovery.com

Addressing the complex near-surface challenges in the Delaware basin through recent FWI advancements

Ali Mohamed, Dmitry Kulakov, Daniel Suren, Wilfrid Milan, Larry Holifield, Vasudhaven Sudhakar

International Meeting for Applied Geoscience and Energy (IMAGE)

...-to-noise ratio (SNR) and to account for the effects of topographic variations and near-surface complexity on the guided waves. the refracted waves...

Hydraulic Fracture Monitoring Using Distributed Acoustic Sensing: A Case Study Using Dip-in Fiber

Chaoyi Wang, Yuanyuan Ma, David Eaton, Kelly MacDougall, Carolyn Furlong

Unconventional Resources Technology Conference (URTEC)

... guided waves that propagate along the wireline (see below). Based on previous experience with DAS programs acquired using cemented fiber elsewhere...

Diffraction amplitudes as a quantitative fracture property interpretation tool

Donald C. Adams, César Barajas-Olalde, Nourelhouda Benouadah, Trevor L. Richards, Bethany A. Kurz

International Meeting for Applied Geoscience and Energy (IMAGE)

... are investigated by numerical experiment using elastic 2D finite difference (2DFD) modeling to simulate the propagation of waves through models...

Abstract: Integrating Petrophysics, Seismic Attributes, and Machine Learning for Shale Facies Identification and Prediction;

Justin Palmer, Lisa Goggin, Adam Halpert, Christopher Skelt, Laura Bandura, Huafeng Liu

Search and Discovery.com

... development of user-guided machine-learning program allows interpreters to scan and classify nearly 300 textural attributes in 3D seismic...

The Use of Physical Modeling to Resolve Offshore Seismic Problems

B. J. Evans, M. Urosevic

Indonesian Petroleum Association

... properties such as relative Q-factor and Poisson's ratio, as well as the generation of mode converted waves. In order to determine the sonic velocity...

Are Tides Controlled by Latitude?, #51305 (2016).

Robert W. Dalrymple, Laurie Padman

Search and Discovery.com

... wave that is guided around the world by the continents. Tidal ranges (and tidal-current speeds) increase as the tidal wave propagates onto and across...

Depositional Processes, Sedimentary Structures, and Predicted Vertical Sequences in Barred Nearshore Systems, Southern Oregon Coast

Ralph E. Hunter, H. Edward Clifton, R. Lawrence Phillips

Journal of Sedimentary Research (SEPM)

... as the waves approach the beach. Where the longshore current impinges on the next bar downcurrent, it is deflected seaward into the rip channel...

Application of shear-wave seismic interpretation technology in shallow gas clouds area

Wang Yan, Deng Zhiwen, Chen Zhigang, Cai Yintao, Zhang Rui, Xi Xiaoyu, Wu Dan

International Meeting for Applied Geoscience and Energy (IMAGE)

..., there are two kinds of S-wave data: fast S-wave and S-shear wave. Several rock physics models have been proposed for analysing the propagation...

Bed Configurations

J. C. Harms, J. B. Southard, D. R. Spearing , R. G. Walker

Special Publications of SEPM

... evidence (discussed later in this chapter) that they are equivalent to the sand waves that are observed in natural environments. A flat-bed mode...

High-Energy Carbonate-Sand Accumulation, the Quicksands, Southwest Florida Keys: DISCUSSION

Cyril Galvin

Journal of Sedimentary Research (SEPM)

... area. Shinn et al. (1990) consider Boca Grande Channel to isolate the M-Q ridge from the east, which it undoubtedly does during normal weather...

Abstract: EMAT (Electromagnetic-Acoustic Transducers) Technology, a Solution for Cement Evaluation in Difficult Logging Environments; #91204 (2023)

Ramdane Bouchou, Evi Yanty

Search and Discovery.com

... enable the generation of various guided wave modes, notably flexural and shear waves. The flexural modes particle displacement is normal to the casing...

Visualization, Interpretation and Cognitive Cybernetics; #120170 (2014)

James Lowell, Jon Henderson, Gaynor Paton, Joe Valenti

Search and Discovery.com

... is generally a subjective visual assessment of the output by the interpreter. This recursive approach is called back propagation and can be used...

The potential of borehole seismic monitoring techniques at the field scale for leakage and well integrity assessment in CO2 injection projects

Nicolás D. Barbosa, Andrew Greenwood, Eva Caspari, Michael Jordan, Marcin Ireneusz Duda, Bastien Dupuy, Amir Ghaderi, Peder Eliasson

International Meeting for Applied Geoscience and Energy (IMAGE)

... hydrophones to establish correlations between the recorded wavefields (e.g., direct, reflected, and guided waves) and the presence of heterogeneities...

Abstract: FWI Using Reflections in Shallow Waters Offshore Abu Dhabi; #91204 (2023)

Carlos Barajas, Olivier Hermant, Oleg Khakimov, Bastian Hutahayan, Guillaume Cambois, Mohamed Mahgoub, Olivier Kirstetter

Search and Discovery.com

... the velocity model using diving waves only, whilst for the second step we use both diving waves and reflected waves to reach the required depth...