High-resolution imaging using least-squares migration in the image domain (LSMi) for a marine distributed acoustic sensing (DAS) 3D-VSP

Ali Sayed, Francesca Twynam, Ran Bachrach, Maud Cavalca, Leo Leon, Maria Shadrina, Qingsong Li, Reetam Biswas, Daniel Tebo, Sam Buist

International Meeting for Applied Geoscience and Energy (IMAGE)

.... The direct arrival attributes from source to the surface were mapped to the end point at source depth. Reflected ray attributes are mapped to the reflection...

New insights into the Bedrock and Quaternary Geology of St. George’s Bay from a vertical integration of marine datasets, offshore western Newfoundland

Lynn T. Dafoe, John Shaw, Christopher Jauer, Peter S. Giles, John W. F. Waldron, D. Patrick Potter

CSPG Bulletin

...:10.4095/292327. Durling, P. and Marillier, F. 1993. Structural elements of the Magdalen Basin, Gulf of St. Lawrence, from seismic reflection data...

Application of Full Waveform Inversion to Resolve an Eroded Shallow Carbonate Platform, North Madura, East Java, Indonesia

David Cavalin, Nurrul Ismail, Tom Paten, Kola Agbebi, Dave Lim

Indonesian Petroleum Association

... reflection tomography techniques provide long to mid wavelength velocity updates but generally fail in updating shallow water environments while giving...

Upper Crustal Structure Derived from Seismic Refraction Experiments: Grand Banks of Eastern Canada

I. Reid, C.E. Keen

CSPG Bulletin

... the line drawing are seismic refraction rather than seismic reflection shot points. They can be correlated with the shot point numbers above each...

Current Workflows for Shale Gas Reservoir Characterization

Satinder Chopra, Ritesh Kumar Sharma, Kurt J. Marfurt

Unconventional Resources Technology Conference (URTEC)

.... Similarly, the base of the reservoir zone will exhibit a distinct positive reflection that will also dim with offset, giving rise to a class-I AVO...

Shale Gas Reservoir Characterization Workflows, #80379 (2014)

Satinder Chopra, Ritesh Kumar Sharma, and Kurt J. Marfurt

Search and Discovery.com

..., the base of the reservoir zone will exhibit a distinct positive reflection that will also dim with offset, giving rise to a class-I AVO response...

Estimation of Error in Grain Size Analysis

J. C. Griffiths

Journal of Sedimentary Research (SEPM)

... in the Trinidad Miocene 33-foot sand it is essentially a reflection of uniformity of the sediment. In using the phi percentile deviation one source of variation...

A Method for Calculating Pseudo Sonics from E-Logs in a Clastic Geologic Setting

Joe H. Smith

GCAGS Transactions

...). Integration errors in the sonic are cumulative. An improper reflection phase will result from an inaccurate velocity calculation causing poor correlation...

Integration of Vertical Seismic, Surface Seismic, and Well-log Data at the Mallik 2L-38 Gas-hydrate Research Well, Mackenzie Delta, Canada

M. W. Lee, T. S. Collett, W. F. Agena

AAPG Special Volumes

...-offset data. The polarity of the inserted VSP data is opposite to that shown in Figure 3, because the convention of reflection coefficient...

Eastward Shift of Deepwater Fan Axes during the Miocene in the Gulf of Mexico: Possible Causes and Models

John W. Snedden, William E. Galloway, Timothy L. Whiteaker, Patricia E. Ganey-Curry

GCAGS Journal

...) of sediment south of the fluvio-deltaic input point in available shelf/upper slope accommodation. However, the depositional axis of the MCAVLU...

Understanding the Complexity of Fracturing in the Sichuan Shale Gas Reservoir in China

Yuan Liu, Daniel Kalinin, Deqi Li, Yajun Jiao, Ran Li

Unconventional Resources Technology Conference (URTEC)

... branches lubricate the bedding interface and provide a slippage possibility, so that this width offset variation would have better chance to accumulate...

Abstract: Amplitude Interpretation and Visualization of Three-Dimensional Reflection Data, by M. E. Enachescu; #90982 (1994).

Search and Discovery.com

It is Never too Late for Seismic, How Geophysics Contributed to Rejuvenating a Mature Field, Tunu Shallow Gas Development; #20173 (2012)

P. Spindler, R. Rengifo, D. Coulon, N. Lenoir, and S. Ariawan

Search and Discovery.com

...-deltaic parasequences vertically stacked according to a regressive-transgressive pattern. Two main reservoir types have been identified: point bars...

Fluid Prediction from 3-D Seismic Data in Deepwater Sandstone Reservoirs: Applications from Cocuite Gas Field, Veracruz Basin, Southeastern Mexico

Fouad, Khaled, Jennette, David C., Soto-Cuervo, Arturo

GCAGS Transactions

... widely used is the intercept-gradient cross plot. The intercept (A) is the reflection coefficient at zero offset determined by extrapolating...

ABSTRACT: Climate Change and Shelf Physiography -- Their Role in Shaping Sequence Architecture: An Example from the East China Sea, by Bartek, Louis, Robert Wellner, Jeff D. Warren; #90026 (2004)

Search and Discovery.com

Confirming Reservoir Geometry and Exploration Opportunity through 5D Interpolation PSDM in The Sub-ophiolite Zone, Banggai Sula Basin, Central Sulawesi

Mufied Ahmad, Dadang Ramdan, Yudi Herdiana, Abdullah Nurhasan, Arif Budi Mulyawan

Indonesian Petroleum Association

... of development (POD) purpose. The pre-stack depth migration (PSDM) reprocessing was expected to handle the lateral velocity variation issue yielded...

Hybridised Weighted Boot-Strap Differential Semblance

Hamish Wilson, Lutz Gross

Petroleum Exploration Society of Australia (PESA)

... in traditional semblance to account for polarity anomalies due to amplitude versus offset (AVO) phenomena. The trend utilised was based on the Shuey...

Distribution of Late Cenozoic Displacement on the San Andreas Fault System, Northern California

John Wakabayashi, James V. Hengesh

Pacific Section SEPM

... fault based on offset nappes of Coast Range ophiolite; (4) 40 km of displacement on the Point Richmond - Tolay fault based on offset Franciscan nappes...

Prestack Impedance Inversion Aids Interpretation, by Satinder Chopra and Ritesh Kumar Sharma; #41664 (2015).

Search and Discovery.com

VSP Guided Reprocessing and Inversion of Surface Seismic Data

R. Gir, Dominique Pajot, Serge Des Ligneris

Southeast Asia Petroleum Exploration Society (SEAPEX)

... discontinuities leading to a discrete reflection coefficient series, r(t). Two-way arrival time from a reflecting interface is a monotomic function...

Imaging Subsurface Structures Under Gas Clounds by Multi-Component Technology

Xiaogui Miao, Loh Fong Cheen, Libo Zi, Jing Du, Magali Beele, Jacques Bonnafe, Natalia Anggriani, Gilles Vallon, Claudio Strobbia

Indonesian Petroleum Association

... km in Cable area, 185 sq km in shot area with the nominal fold of 1200 for about 6 km of maximum offset. The receiver interval is 25 m and source...

Seismic Qualitative and Quantitative Analysis for Reservoir Characterization of Globigerina BH Gas Field, North East Java Basin.

Indra Sumantri, Okky Yuditya Pahlevi, Hendra Himawan, Vickry Rowi, Kian Han

Indonesian Petroleum Association

... seismic inversion analysis both post and pre-stack inversion. Xline 2687 is sampled to observe its amplitude variation with offset or angle. The points...

Acquisition Footprint, by Andreas Cordsen, #40128 (2004).

Search and Discovery.com

Basement-involved Contractional Wedge Structural Styles: Examples from the Hanna Basin, Wyoming

Van S. Mount, Kevin W. Martindale, Thomas W. Griffith, John O. D. Byrd

AAPG Special Volumes

... categories of basement-involved wedge structures have been identified based on the level of the wedge point with respect to the basement surface...

Base of the Crust: Seismological Expression, Geological Evolution, and Basin Controls: Chapter 4: Concepts

J. Hall

AAPG Special Volumes

... with an acoustic impedance contrast sufficient to provide detectable reflectivity. Moho Offset Across Dipping Boundaries The reflection Moho appears...