ABSTRACT: Seismic Properties and Modeling of an Early Aalenian Salt(?) Layer in Baltimore Canyon Trough, Offshore New Jersey, by Ann B. Swift, Myung W. Lee, C. Wylie Poag, Warren F. Agena; #91003 (1990).

Search and Discovery.com

Mitigating cycle skipping in FWI through preconditioned multidimensional optimal transport

James McLeman, Tim Burgess, Tom Rayment, Victor Chua

International Meeting for Applied Geoscience and Energy (IMAGE)

.... Unfortunately, this approach is prone to cycle skipping when the supplied velocity is too far from the truth. Starting FWI at lower frequencies...

Seismic applications of the Radon transform and a new second-order traveltime local transform

Ehsan Soleymani, Mauricio Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

...Seismic applications of the Radon transform and a new second-order traveltime local transform Ehsan Soleymani, Mauricio Sacchi Seismic applications...

Subsurface temperature from seismic reflections: Application to the post-breakup sequence offshore Namibia

Arka Dyuti Sarkar and Mads Huuse

AAPG Bulletin

...., 2000). For there to be a linear relationship between acoustic velocity and thermal conductivity conditions, downhole must be conductive, steady state...

Abstract: Structure of Earths Shallow Outer Core: No Evidence for Stratification; #90172 (2014)

Catherine Alexandrakis, David W. Eaton

Search and Discovery.com

... of the outermost core velocity structure have been hampered by traveltime uncertainties due to lowermost mantle heterogeneities (Souriau and Poupinet, 1991...

Recent Advances in the Characterization of Unconventional Reservoirs with Wide-Azimuth Seismic Data

Ran Bachrach, Colin M. Sayers, Sagnik Dasgupta, Josimar Silva, Stefano Volterrani

Unconventional Resources Technology Conference (URTEC)

... thickness is approximately 60 ft. Azimuthal velocity anisotropy analysis was performed on the densely sampled 3D data. The data were depth migrated...

Improvement of Seismic Tomographic Imaging by Downward Continuation and Modified SIRT

Teuku A. Sanny, D. Santoso, D. Dahrin, Fatkhan, Alfian B.

Indonesian Petroleum Association

... of the direct arrival traveltime tomography. But the tomography image fails when applied in an area that has a Low Velocity Layer (LVL) in the top of objective...

Imaging below Seafloor Canyons and other Rugose Features

Dominic Fell, Kiran Dyal, Tony Hallam, Sebastian Nixon

Australian Petroleum Production & Exploration Association (APPEA) Journal

... of velocity related structural distortions. Keywords: depth imaging, depth migration, earth model building, seafloor topography, tomography. Accepted...

Frequency-Domain Waveform Tomography in the Foothills: Velocity Model Estimation with Synthetic Long-Offset Data

Search and Discovery.com

.... Depth imaging is often necessary, and an accurate estimation of the macro-velocity model is essential. Waveform Tomography (i.e., traveltime...

The Application of 2D Common-Offset Common-Reflection-Surface (CO CRS) Stack Method Towards Synthetic Data

Parapaty Halley, Rachmat Sule, Teuku Abdullah Sanny

Indonesian Petroleum Association

.... The third and fourth layers are sediment beds which are more compact, showing increased P-wave velocity along their depth. The modeling used...

Joint 4D full-waveform inversion using enhanced template-matching objective function

Gaurav Dutta, Emmanuel Saragoussi, Xin Cheng, Markos Sourial, Yongbo Zhai, Chirag Parekh, Denes Vigh

International Meeting for Applied Geoscience and Energy (IMAGE)

... of the 4D difference got distorted after alignment. Figure 4: (a) 4D RTM image using a common velocity model and without any alignment. (b) Calculated depth...

Abstract: Determining the Structure of Basalt Flows with Wide-Angle Seismic Data, by M. M. Fliedner, R. S. White, and J. Fruehn; #90923 (1999)

Search and Discovery.com

Abstract: Imaging Sub-Volcanic Sediments From Wide-Angle Seismic Data In Selected Basins Of India; #90315 (2017)

Kalachand Sain

Search and Discovery.com

... provided a solution to this challenge by wide-angle seismic experiment, and delineated large-wavelength velocity structure in the Kutch, Saurashtra...

Cross-Borehole Tomography in Development Geology: Part 7. Geophysical Methods

J. H. Justice, M. E. Mathisen, J. R. Bulau, A. A. Vassiliou

AAPG Special Volumes

... and receivers for a typical survey are shown in Figure 2. These traveltime data are then used to infer the seismic velocity field between the wellbores. f...

Abstract: Scanning Anisotropy Parameters in Inhomogeneous Media, by Tariq A. Alkhalifah; #90105 (2010)

Search and Discovery.com

Study of Sub-Salt Sediments in the Bayram-Ali Gas Region

V. A. Teplitskiy, I. P. Belozerov, B. M. Geyman, V. P. Lupanosov

Petroleum Geology: A Digest of Russian Literature

... observations combined with common depth point measurements at the surface were used. This program was successful. The upper boundaries within the sandy...

Robust localized adaptive waveform inversion: A new regularization for Gabor deconvolution

Peng Yong, Romain Brossier, Ludovic Mtivier

International Meeting for Applied Geoscience and Energy (IMAGE)

... enough, FWI would fail to generate geologically meaningful velocity models. Studies indicate that enhancing traveltime information in misfit design can...

Structure of the Gudauta Bank According to Reconnaissance Seismic Investigations

Yu. P. Neprochnov, V. N. Moskalenko

Petroleum Geology: A Digest of Russian Literature

... of average velocity in the covering unit of V ¯ = 2.08 kmps was used; this was determined from the point of intersection of the traveltime curves...

Chapter 14: Gravity, Seismic Reflection, and Tomographic Constraints on the Subduction-to-Strike-Slip Transition at the Southeastern Caribbean Plate Boundary Zone

Tricia G. Alvarez, Paul Mann, Carlos A. Vargas, Lesli J. Wood

AAPG Special Volumes

... Research, v. 102, p. 3211–3214. Nakajima, J., and A. Hasegawa, 2006, Anomalous low-velocity zone and linear alignment of seismicity along...

Microseismic Without Dots … Probabilistic Interpretation and Integration of Microseismic Surveys

Ulrich Zimmer

Unconventional Resources Technology Conference (URTEC)

... probability of a gridpoint (GP) for being the event location given the sensor positions (SPi), the velocity models (VMj) and the measured traveltime arrivals...

A Dynamic Reflection Traveltime Calculation Method

Y. Wang, D.R. Schmitt

CSPG Special Publications

...A Dynamic Reflection Traveltime Calculation Method Y. Wang, D.R. Schmitt 1994 49 50...

Investigation of DMO Algorithms during Test-Line Processing: Some Recommendations

Ng Tong San, Mohd. Hashim Abas, Leong Lap Sau

Geological Society of Malaysia (GSM)

... not be used solely for suppressing high velocity linear noise and lessening back scattered energy. Other filtering options are available. INTRODUCTION...

Time-Lapse Imaging of a Hydraulic Stimulation Using 4-D Vertical Seismic Profiles and Fiber Optics in the Midland Basin

Robert Meek, Kevin Woller, Mark George, Robert Hull, Hector Bello, Jed Wagner

Unconventional Resources Technology Conference (URTEC)

... migration. The depth migration used an isotropic eikonal traveltime solution calculated from a single velocity function derived from the zero-offset direct...

ABSTRACT: Velocity Inversion Using Geological Constraints, by Jos Van Trier; #91035 (2010)

Search and Discovery.com

Prediction of multiple origin overpressure in deep fold-thrust belt: A case study of Kuqa subbasin, Tarim Basin, northwestern China

Changyu Fan, Gang Wang, Zhenliang Wang, Xiaojie Han, Jie Chen, Kuaile Zhang, and Baoshou Zhang

AAPG Bulletin

... of the compaction curve from the relationship between acoustic traveltime and depth into that of sonic velocity versus VES to obtain the mean loading curves...