Estimation of detachment depths and displacements from the area–depth markers of contractional growth structures: Testing the “inverse line” concept

Sam Rivas-Dorado

AAPG Bulletin

...Estimation of detachment depths and displacements from the area–depth markers of contractional growth structures: Testing the “inverse line” concept...

Kutei Basin: Feasibility Study of a Broadband Acquisition

Gilbert Del Molino, Fabri Ikhlas Gumulya, Dedy Sulistiyo Purnomo, Paolo Battini, Bonita Nurdiana Ersan, Francesca Brega, Ferdinando Rizzo, Giorgio Cavanna, Buia Michele

Indonesian Petroleum Association

... achievable and how to “fit” the 3D acquisition to elastic inversion? First question, resolution, is related to wavelet bandwidth, the broader the bandwidth...

Applications of Kirchhoff Least-Squares Migration: Towards Reservoir Imaging; #42183 (2018)

Francesco Perrone, Graham Roberts, Lorenzo Casasanta, Andrew Ratcliffe, Arash Jafargandomi, Karen Purcell

Search and Discovery.com

... artifacts caused by the finite bandwidth of the source wavelet. A good data pre-processing sequence can handle some of these issues. However, even...

Multipole borehole acoustics in the presence of an constraints elastic tool

Tim Geerits, Stefan Schimschal, Anna Swiatek

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Summary In this paper we present a mathematical formulation for the borehole fluid multipole wavefield due to a unipole excitation. Unipole source...

Physics-based preconditioned multidimensional deconvolution in the time domain

David Vargas, Ivan Vasconcelos, Matteo Ravasi, Nick Luiken

International Meeting for Applied Geoscience and Energy (IMAGE)

... Amundsen, L., 2001, Elimination of free-surface related multiples without need of the source wavelet: Geophysics, 66, 327–341, doi: https://doi.org...

OBN up/down-going wavefields separation in dual-tree complex wavelet domain

Zhang Libin, Wang Wei, Zou Zhen, Li Yifan, Chen Zhigang, Wang Kebin

International Meeting for Applied Geoscience and Energy (IMAGE)

...OBN up/down-going wavefields separation in dual-tree complex wavelet domain Zhang Libin, Wang Wei, Zou Zhen, Li Yifan, Chen Zhigang, Wang Kebin OBN...

Seismic signal considerations for fast reservoir characterization

Folkert Hindriks

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the integrated signal by computing the inverse Fourier transform (Brandt, A. and Brincker, R., 2014). 𝑓 ′ (𝑡) = 1 2...

Full-waveform inversion from a homogeneous starting model: A field dataset study

Zeyu Zhao, Brook Tozer, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... footprint, inaccurate source wavelet and amplitude distortion issues, etc., has not been studied. The performance of the hybrid optimization based...

The emergence and impact of scientific machine learning in geophysical exploration

Umair bin Waheed

International Meeting for Applied Geoscience and Energy (IMAGE)

... but also align with established physical laws (Jin et al., 2021). Similarly, SciML has found a number of applications in geophysical modeling and inverse...

Abstract: Full Waveform Inversion of Crosswell Seismic Data Using Automatic Differentiation; #90187 (2014)

Danping Cao and Wenyuan Liao

Search and Discovery.com

... on the accuracy and efficiency of the gradient computation. The adjoint state method has been introduced in the theory of inverse problems in the 1970s (Chavent...

A geophysical prior knowledge guided semisupervised deep learning framework for AVA inversion

Lei Zhu

International Meeting for Applied Geoscience and Energy (IMAGE)

... the inverse operator, like an inverse wavelet WL . The INN converts the input seismic attribute data dL into the responding parameter rL . Second, the FNN...

Monopole slow formation shear head wave Greens function in a LWD borehole acoustic configuration

Tim Geerits, Stefan Schimschal, Anna Swiatek

International Meeting for Applied Geoscience and Energy (IMAGE)

... LWD modeling study that not only showed Green’s functions of head waves and guided modes for fast and slow formations but also compared the source...

The direct linear electromagnetic inverse with constraints

Peter Walker

International Meeting for Applied Geoscience and Energy (IMAGE)

...The direct linear electromagnetic inverse with constraints Peter Walker The direct linear electromagnetic inverse with constraints Peter Walker...

Least-squares RTM with shifted total variation regularization for depth imaging of sparse short-offset seismic data

Toktam Zand, Andrzej Gorszczyk, Ali Gholami, Hasan Ghasemzadeh, Alison Malcolm

International Meeting for Applied Geoscience and Energy (IMAGE)

... spacing). The source signature is a Ricker wavelet with a 2.5 Second International Meeting for Applied Geoscience & Energy 10.1190/image2022-3751356.1...

Elastic-AdjointNet: A physics-guided deep autoencoder to overcome crosstalk effects in multiparameter full-waveform inversion

Arnab Dhara, Mrinal Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

... is 100x300 with grid spacing of 0.02 km. A Ricker wavelet of peak frequency 10 Hz is used as the source. We simulate 35 shots over 276 receivers. The true...

Towards understanding the impact of the evanescent elastodynamic mode coupling in Marchenko equation-based demultiple methods

Marcin Dukalski, Christian Reinicke, Kees Wapenaar

International Meeting for Applied Geoscience and Energy (IMAGE)

... this construction allows us to shed light on into the mathematical properties of elastodynamic inverse transmissions, which takes us a step closer...

Improved Subsurface Imaging and Interpretability Through Broadband Reprocessing of Legacy Seismic Data: Examples from North West Shelf Australia

Stephen Malajczuk, Rajesh Saklani, Dean Clark, David Eastwell

Petroleum Exploration Society of Australia (PESA)

... wavelet has been obtained, it can be used within the trace-by-trace calculation of the inverse ghost operator. The data is transformed to tau-p space...

Applications of Shallow High-Resolution Seismic Reflection to Environmental Problems

Richard D. Miller, William E. Doll, Carlene Merey, William E. Black

Environmental Geosciences (DEG)

... sections displayed in this paper (Mayne, 1962). The CDP method involves a time adjustment of wavelet arrivals (based on source-to-detector offset...

Velocity continuation with Fourier neural operators for accelerated uncertainty quantification

Ali Siahkoohi, Mathias Louboutin, Felix J. Herrmann

International Meeting for Applied Geoscience and Energy (IMAGE)

... of Technology SUMMARY Seismic imaging is an ill-posed inverse problem that is challenged by noisy data and modeling inaccuracies—due to errors...

A novel vector PP imaging condition for elastic reverse-time migration

Bingkai Han, Weijian Mao, Xiao-Bi Xie

International Meeting for Applied Geoscience and Energy (IMAGE)

... the true model, in which multicomponent receivers are evenly distributed on the top of the model. Then, we inject the source wavelet and time-reversed...

A case study using FWI to image pre-Messinian target in the East Mediterranean Sea

Jyoti Kumar, Marcus Bell, Tamer Darwish, Mai Ahmed, Mahmoud Ahmed, Moataz Ahmed

International Meeting for Applied Geoscience and Energy (IMAGE)

... carbonates. The workflow has been applied to data acquired using a multi-sensor streamer and a triple source acquisition configuration, recently...

New Joint Categorical/Continuous Simultaneous Inversion Technology (Paper C9)

M. Kemper

Geological Society of Malaysia (GSM)

... can turn reflectivity Rpp(θ) in [1] into synthetic seismic Spp(θ) by convolving with wavelet W(θ): Spp(θ) = a W(θ)RAI + b W(θ)RSI + c W(θ)Rρ [2...

The Use of Synthetic Sonic Logs Derived From Seismic Data in the Interpretation of Stratigraphic Variation in Cretaceous Carbonates of the North Field Area, Qatar: Chapter 14

Helena S. Aves, Daniel M. Tappmeyer

AAPG Special Volumes

.... METHODOLOGY In this study an inverse modeling technique was used to analyze interval velocity variation away from well control. The objective...

SYNTHETIC SEISMOGRAMS

Search and Discovery.com

A gradient-free Bayesian full-waveform inversion approach for background model uncertainty quantification

Shuhua Hu, Zeyu Zhao, Fuchun Gao, Faqi Liu, Shuo Zhang, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

...z Ricker wavelet is used as source time function. No noise is added to the data. For inversion, frequency domain data within the band of 2-5H...