Enhancing the accuracy of DBSCANs first arrival traveltime picking using super-virtual refraction interferometry

Muhammad Awais, Sherif M. Hanafy, King Fahd

International Meeting for Applied Geoscience and Energy (IMAGE)

...Enhancing the accuracy of DBSCANs first arrival traveltime picking using super-virtual refraction interferometry Muhammad Awais, Sherif M. Hanafy...

Extended full-waveform inversion to improve the subsalt imaging in GOM

Guojian Shan, Jingru Chen, Zhemin Tan, John Chen, Yue Wang, Xiaoting Lou, Jennifer Zhang, William Lester

International Meeting for Applied Geoscience and Energy (IMAGE)

...-skipping arises from an inaccurate initial velocity model, causing a discrepancy in traveltime beyond half the wavelength of the given frequency...

Abstract: Reservoir Characterization of Plover Lake Heavy-Oil Field, by Larry Lines, Joan Embleton, Mathew Fay, Steve Larter, Tony Settari, Bruce Palmiere, Carl Reine, and Douglas Schmitt; #90075 (2008)

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Reservoir Characterization of Plover Lake Heavy-Oil Field, by Larry Lines, Joan Embleton, Mathew Fay, Steve Larter, Tony Settari, Bruce Palmiere, Carl Reine, and Douglas Schmitt, #40274 (2008).

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III Columbia Oil & Gas Investment Conference: Conventional & Unconventional Hydrocarbon Resources - Abstracts

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... of seismic data as witnessed by differences in kinematic (e.g. traveltime) and dynamic (e.g. AVO) responses. Inversion processes transform...

Argillaceous Rock Compaction and Primary Migration in the Mangnai Depression, Qaidam Basin, China

Chen Heli

Circum Pacific Council Publications

... and other problems relating to argillaceous rock compaction as very effective. In actual practice, close attention should be paid to the following: (1...

ABSTRACT: Tectonic Structure of the Tuscany-Latium Continental Shelf (Tyrrhenian Sea), by Roberto Bartole; #91032 (2010)

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VSP Fundamentals that Improve CDP Data Interpretation: ABSTRACT

J. E. Gaiser, J. P. Disiena

AAPG Bulletin

... an alternative approach and a valuable link between the synthetic and CDP data. A VSP extends check shot surveys from first break traveltime analysis...

Abstract: Prestack Signal Enhancement by Non-hyperbolic MultiFocusing; #90187 (2014)

Evgeny Landa, Alex Berkovitch, and Kostya Deev

Search and Discovery.com

... for traveltime stacking surface description is used. It allows accurately approximate traveltimes of seismic events in the vicinity of arbitrary offset. We present...

Wings, mushrooms, and Christmas trees: The carbonate seismic geomorphology of Central Luconia, Miocene–present, offshore Sarawak, northwest Borneo

Eduard Koša, Georg M. D. Warrlich, and Guy Loftus

AAPG Bulletin

... clinoforms depicted in (A) and (B) provide clear evidence for timelines (white dashed lines) to cross the carbonate buildup (E), the standard practice...

Combining seismic reservoir characterization workflows with basin modeling in the deepwater Gulf of Mexico Mississippi Canyon area

Wisam H. AlKawai, Tapan Mukerji, Allegra Hosford Scheirer, and Stephan A. Graham

AAPG Bulletin

... data frequency spectrum applied to constrain the high cut filter of the (B) low-frequency background model. TWT = two-way traveltime...

Volume-constrain first arrival tomography based near surface modeling and its application

Naijian Wang, Zhihui Yan, Qingpo Ma, Wei Wu, Yunfei Zu, Yonggui Hu

International Meeting for Applied Geoscience and Energy (IMAGE)

...-equivalent velocity model, which can not represent the real velocity model. Moreover, it is discovered in practice that compared with the result...

Subsurface Maps: Part 6. Geological Methods

K. W. Weissenburger

AAPG Special Volumes

... practice, isochore maps are informally referred to as "sopach" maps, a term that properly should be restricted to true stratigraphic thickness. Isochron...

Abstract: Shear Wave Splitting Parameter Estimation Using a Regular Distribution of Azimuths; #90187 (2014)

A. Stanton and M. D. Sacchi

Search and Discovery.com

...: the azimuth of the fast direction of the splitting layer, and the traveltime difference between a shear wave propagating in the slow and fast...

Abstracts: Coulomb Stress Failures in Fracture Networks Resulting from Hydraulic Fracturing: A Tutorial; #90173 (2015)

Kris Vasudevan and David W. Eaton

Search and Discovery.com

... a common industry practice to collect microseismic data from either one or many observation wells with a multiple array of sensors. Aside from real...

Multifocusing Stack Technique for Subsurface Imaging, #40749 (2011)

Sunjay Sunjay,

Search and Discovery.com

... in Practice: 68th Annual Meeting, SEG, Expanded Abstracts, v. 17, p. 1748-1751. Web accessed 16 May 2011. doi.org/10.1190/1.1820265 Castle, R.J, 1994...

Stop Treating Diffractions as Noise … Use them for Imaging of Fractures and Karst; #120057 (2012)

Mark Grasmueck, Tijmen Jan Moser, and Michael A. Pelissier

Search and Discovery.com

... and unconventional shale Gas/Oil plays. ● Current reflection seismic survey practice is optimized for continuous stratigraphy but suppresses...

Sensitivity analysis of acoustic waveform inversion to velocity anomalies in the near-surface using the Frchet derivative

Ao Cai, Colin A. Zelt

International Meeting for Applied Geoscience and Energy (IMAGE)

... anomalies, whereas nonlinear traveltime tomography (TT) is known to be more sensitive to high velocity anomalies than low velocity anomalies because...

Non-First-Break Solution for Shallow Velocity Anomaly Problem; #41602 (2015)

Emil Blias

Search and Discovery.com

... to estimate shallow velocity structure, (iii) Non-linear horizon based traveltime tomography to improve depth velocity model and (iv) time-dependent velocity...

AAPG Memoir 76, Chapter 18: Velocity Estimation for Pore-Pressure Prediction

David W. Bell

AAPG Special Volumes

... accurate time-to-depth information. Check shots are direct transmission measurements at seismic frequencies of traveltime from a surface source...

CSPG/CSEG/CWLS GeoConvention 2012, May 14-18, 2012 Calgary TELUS Convention Centre & ERCB Core Research Centre, Calgary, Alberta, Canada; - Abstracts, #90174 (2014).

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Uncertainty quantification for full-waveform inversion with a mini-batch gradient-based sampling method

Zeyu Zhao, Mrinal K. Sen

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The solid black lines are a priori information, i.e. velocity bounds. the tests utilize the frequency domain modeling engine with the LU decomposition...

The Cretaceous-Cenozoic Volcanic Record of the Gippsland Basin: Origin, Nature and Significance for the Energy Transition

Simon Holford, Fun Meeuws, Ernest Swierczek, Nick Schofield, Mark Bunch

Australian Petroleum Production & Exploration Association (APPEA) Journal

... to map lava flows above the Kipper Field across an area of roughly 240 km3 using spectral decomposition frequency blending. Meeuws et al. (2016b...

Origin of overpressure and pore-pressure prediction in the Baram province, Brunei

Mark R. P. Tingay, Richard R. Hillis, Richard E. Swarbrick, Chris K. Morley, Abdul Razak Damit

AAPG Bulletin

... modeling, in S. J. Duppenbecker and J. E. Iliffe, eds., Basin modeling: Practice and progress: Geological Society (London) Special Publications 141, p...

ABSTRACT: Azimuthal variations in PP reflection seismic: signals on in-situ stress fields &/or vertical aligned fractures

Heloise Lynn

Rocky Mountain Association of Geologists

... on in-situ stress fields &/or vertical aligned fractures The uses of the azimuthal variations in reflection signatures, traveltime, amplitude, gradient...