Abstract: Computing Gridded Traveltimes from the Random Locations of Three Known Points; #90211 (2015)

John Bancroft and Xiang Du

Search and Discovery.com

... the traveltime at a fourth desired location (for 2D data). There are a num ber of methods that accomplish this task with various geometries for the three known...

Characterizing seismic anisotropy and AVO using walkaway VSP: Willow oilfield, Alaska

Manish Lal Khaitan, Ali Sayed, Shujaat Ali, Trey Wagner, Jonathan Scorer, Brett Wendt

International Meeting for Applied Geoscience and Energy (IMAGE)

... on the walkaway line (Figure 1). estimated by fitting the phase-slowness or slownesspolarization curves. The intrinsic anisotropy results from the two...

A shallow velocity model building using full-waveform inversion on 3D onshore dataset

Young Seo Kim, Jewoo Yoo, Tong Fei, Ali Almomin

International Meeting for Applied Geoscience and Energy (IMAGE)

... velocity model to minimize time difference of the first arrivals between field and synthetic data. At the second stage, we perform traveltime-oriented FWI...

Premigration attenuation analysis and mapping to image domain by weighted migrations

Yonghe Sun, Chunling Wu, Mark Fan, Zhemin Tan

International Meeting for Applied Geoscience and Energy (IMAGE)

... of frequency over the range of seismic frequencies (e.g., Aki and Richards, 2002, page 172; Liu et al., 1976; Kjartansson, E., 1979). The traveltime can...

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

... Reflection Surface (CO CRS) Stack method is presented in this paper. This method is based on summing up correlated events in the multi coverage data...

Development of deep learning method for automatic seismic first break picking

Albert Farkhutdinov, Ruslan Malikov, Izat Shahsenov

International Meeting for Applied Geoscience and Energy (IMAGE)

.../10.1190/segam2018-2998293.1. Gelchinsky, B., and V. Shtivelman, 1983, Automatic picking of first arrivals and parametrization of traveltime curves: Geophysical...

Figures

Search and Discovery.com

Abstract: Application of a Tomographic Velocity Model to the Prestack Depth Migration of a Buried Valley; #90172 (2014)

Oluwafemi Ogunsuyi, Douglas R. Schmitt

Search and Discovery.com

... of a tomographic velocity model, the reprocessing of the reflection seismic and its corresponding depth migration using velocities derived from the traveltime...

3-D High-Resolution Reservoir Characterization from Crosswell Seismic Data

John Washbourne, Kenneth Bube

West Texas Geological Society

... interpolation. Bube, K. P., and Langan, R.T., 1994, A continuation approach to regularized traveltime tomography: 64th Ann. Intl. Mtg., Society Exploration...

Traveltime tomography and efficient physics-informed Bayesian inversion

Tian Qiao, George Turkiyah, Gerard T. Schuster

International Meeting for Applied Geoscience and Energy (IMAGE)

...Traveltime tomography and efficient physics-informed Bayesian inversion Tian Qiao, George Turkiyah, Gerard T. Schuster Traveltime tomography and ef...

An Interpreter's Guide to Improvements in Depth Imaging Through Model-Based Velocity Estimation and Refinement

Andy Furniss

Indonesian Petroleum Association

... inversion uses actual pre-stack CMP gathers in the time domain to correlate with the modelled traveltime curves whereas stacking velocity inversion...

An Interpreter's Guide to Improvements in Depth Imaging through Model-Based Velocity Estimation and Refinement

Andy Furniss

Petroleum Exploration Society of Australia (PESA)

... traveltime curves, whereas stacking velocity inversion conelates the modelled raypath with a hyperbolic traveltime curve implied by the stacking velocity...

Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)

Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang

Search and Discovery.com

... by nonlinear traveltime tomography that accounts for topography, and resolves lateral and vertical velocity variations. (2) Several different strategies...

ABSTRACT: Marine Crustal Reflection Profiling Offshore Santa Maria Basin Westward to Base of Continental Slope, by Anne S. Meltzer and Alan R. Levander; #91035 (2010)

Search and Discovery.com

Estimating Thermal Conductivity in Sedimentary Basins Using Lithologic Data and Geophysical Well Logs (1)

FREDERIC BRIGAUD , DAVID S. CHAPMAN , and SYLVIE LE DOUARAN

AAPG Bulletin

... the basin. Of the various thermal properties of rocks, thermal conductivity is perhaps most important in this context because it has a first-order control...

Growth and demise of a Paleocene isolated carbonate platform, northwest Sirte Basin, Libya: Sequence stratigraphic architecture and controlling factors

Muneer Abdalla, Wan Yang, and Salah Shaniba

AAPG Bulletin

... bounded by unconformable sequence boundaries. Those seismic sequences are ∼450–550 m thick in two-way traveltime and have an aerial extension of at least...

Anisotropic full-azimuth velocity model building using joint reflection-refraction tomography

Matan Shustak, Itai Sharabi, Orly Kletenik-Edelman, Elive Menyoli, Ike Imala, Ronit Levy, Zvi Koren

International Meeting for Applied Geoscience and Energy (IMAGE)

... by simultaneously minimizing the traveltime errors of both reflection and refraction data. Refraction waves mainly propagate laterally and thus provide...

The Role of Fault Interaction and Linkage in Controlling Synrift Stratigraphic Sequences: Late Jurassic, Statfjord East Area, Northern North Sea

Nancye H. Dawers and John R. Underhill

AAPG Bulletin

... intrabasinal fault is associated with   Figure 2--Stratigraphic framework and tectonic events of the East Shetland Basin. BCE = base Cretaceous event...

Mapping Areas of Greater Thickness of the Clastic Unit of the Lower Carboniferous by the Seismic Reflection Method

A. K. Urupov, Yu. A. Byakov, S. A. Shikhov

Petroleum Geology: A Digest of Russian Literature

... of systems of traveltime curves of reflected waves for determining effective velocity: Razvedoch. i Promyslov. Geofizika, vyp. 20. The clastic sediments...

A simple method of determining sand/shale ratios from seismic analysis of growth faults: An example from upper Oligocene to lower Miocene Niger Delta deposits

S. Pochat, S. Castelltort, J. Van Den Driessche, K. Besnard, C. Gumiaux

AAPG Bulletin

... of strata thickness variations is widely employed in reconstructing the kinematics of growth structures at various degrees of resolution. A commonly used...

Microseismic Without Dots … Probabilistic Interpretation and Integration of Microseismic Surveys

Ulrich Zimmer

Unconventional Resources Technology Conference (URTEC)

... in various ways. Velocity log information, structural information and its ability to locate calibration events close to their known origin can all...

Very High-Resolution Seismics as a Tool for Sequence Stratigraphy Applied to Outcrop Scale--Examples from Eastern Tyrrhenian Margin Holocene/Pleistocene Deposits

F. L. Chiocci

AAPG Bulletin

..., and N. Zitellini, 1986, Pleistocene progradation and postglacial events of the NE Tyrrhenian continental shelf between the Tiber river delta and Capo...

Abstract: Sub-Salt and Sub-Basalt Imaging Using Long Offset and Multicomponent Seismic Data, by J. Gaiser, N. Jones, and P. Fontana; #90923 (1999)

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Subtle Discontinuity Detection and Mapping for Carbon Sequestration Assessment in the Illinois Basin

J. H. McBride, R. W. Keach II, H. E. Leetaru, W. J. Nelson

AAPG Special Volumes

... the integrity of the reservoir seal or affect the connectivity within the reservoir itself. In this study, we apply and assess various techniques to enhance...

Seismic diffraction imaging for improved coal structure detection in complex geological environments

Binzhong Zhou, Weijia Sun

Petroleum Exploration Society of Australia (PESA)

...: (a) a synthetic seismic section with 4 reflection events in variable dips; (b) Estimated local dips for the seismic events in (a). The red curves are the time...