How to Make Velocity Corrections

John W. Daly

AAPG Bulletin

... is the average velocity and is considerably less than the instantaneous velocity, in this case, V3. Consequently, the dip of a continuous reflector, as determined...

Diffraction separation based on envelop and optimized stacking

Wentao Mu, Weiyi Zhang, Jianlei Zhang, Zhenping Tian

International Meeting for Applied Geoscience and Energy (IMAGE)

.../10.1190/1.2370017. Wang, W., J. Gao, H. Zheng, W. Chen, and E. Zhang, 2010, Edge preserving vector filter for smoothing reflector dip and azimuth: 80th...

Semi-inverse relationship between critical angle and reflectivity coefficient, and its implication in seismic survey design, processing, and interpretation

Chen Bao

International Meeting for Applied Geoscience and Energy (IMAGE)

... would also help to avoid a polarity flip either from structure up-dip to down-dip, or from mid to far angles. But again, are we capturing enough far...

Tertiary Foundations and Quaternary Evolution of Coral Reef Systems of Australia's North West Shelf

L. B. Collins

Petroleum Exploration Society of Australia (PESA)

... and Giralia Anticlines are somewhat smaller, breached structures, and where a hard limestone cap has been removed, dip-slope ranges have resulted from...

Applications and Limitations of Dip Shooting

E. E. Rosaire and Joseph L. Adler

AAPG Bulletin

...Applications and Limitations of Dip Shooting E. E. Rosaire and Joseph L. Adler 1934 119 132 18 1. (January) The history and methods of dip-shooting...

Abstract: Gas Hydrate Surface Simulating Seismic Reflector in the Prudhoe Bay-Kuparuk River Region of Northern Alaska, by T. S. Collett and K. J. Bird; #90987 (1993).

Search and Discovery.com

Abstract: Meandering Channel Facies Architecture Using Ground Penetrating Radar, Ferron Sandstone (Upper Cretaceous) Emery Co., Utah, by Oluwasegun Abatan, Dennis Kerr, and Kumar Ramachandran; #90181 (2013)

Search and Discovery.com

Multispectral Volumetric Curvature Adding Value to3D Seismic Data Interpretation, #41540 (2015).

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

..., where u is an inline or crossline component of reflector dip, and where α is a fractional real number that typically ranges between 1 (giving...

Seismic Attributes for Fault/Fracture Characterization, #41539 (2015).

Satinder Chopra, Kurt J. Marfurt

Search and Discovery.com

... along the dip and azimuth of seismic reflector. The coherence images clearly reveal buried deltas, river channels, reefs, and dewatering features...

Seismic Characterization of a "Compound Tectonic Wedge" Beneath the Rocky Mountain Foreland Basin, Alberta

Donald C. Lawton, Chakrit Sukaramongkol,, Deborah A. Spratt

CSPG Bulletin

... detachment occurring within the Upper Cretaceous Brazeau Group. Maximum dip of the upper detachment is 20°. The lower detachment of the wedge rides...

Untested carbonate buildups in the Bermejo field, Ecuador: A potential new play type in the western Oriente Basin

Gwang H. Lee, John P. Castagna

AAPG Bulletin

..., amplitude, and dip maps. It is characterized by generally high but variable seismic amplitude, and its thicknesses (20 to 40 m; 66 to 131 ft) exhibit...

Abstract: 2D Depth Velocity Analysis without Tomography; #90187 (2014)

J. Patrick Butler and Randy Kolesar

Search and Discovery.com

... for the reflector and is not time variant NMO, so the data will dip above and below the reflection time (Figure 3). However, it is easy to see this; and some...

Structural Style and Hydrocarbon Potential in the Acadian Foreland Thrust and Fold Belt, Gasp Appalachians, Canada

D. Kirkwood, M. Lavoie, J. S. Marcil

AAPG Special Volumes

... anticlines. Location of Galt natural gas field with oil seeps and wells is highlighted in squared area. See location in Figure 1. APA = Aroostook-Perc...

The Fabric, or Internal Structure, of Rocks … The Patterns of Anisotropy; #42188 (2018)

Heloise B. Lynn

Search and Discovery.com

... to the bedding plane, the P wave velocity will be slower. Figure 2 presents schematically the symmetry terms. Transverse isotropy with a horizontal axis, HTI...

The Wedge Model Revisited; #41545 (2015)

Joanna K. Cooper, Don C. Lawton

Search and Discovery.com

...-difference exploding reflector models using a numerical version of the same wedge velocity models were also produced. Migration of the physical model...

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

Arka Dyuti Sarkar and Mads Huuse

AAPG Bulletin

... hydrate bottom-simulating reflector is used to derive a shallow heat flow proxy (averaging 64 mW m−2). Deriving subsurface thermal conductivity from...

Dome Structure, Atlantic Outer Continental Shelf East of Delaware: Preliminary Geophysical Report

Robert E. Sheridan

AAPG Bulletin

... that the early Miocene reflector surface has a significant reversal in dip near the shelf edge, so that it dips west at about 3 m/km (Fig. 3a), then dips east...

The Limitations of Seismic Modelling of Geological Structures

B. L. N. Kennett

Petroleum Exploration Society of Australia (PESA)

... reflector' model, which is often augmented by including diffraction points with a spray of rays. Such modelling depends on the assump• tion of pointwise...

Ascertain the Presence of Open Fractures in Tight Carbonate Reservoirs with Integrated Solution

Kim Long Nguyen, Mahmoud F. Shehab El Dein, Nami Al-Mutairi, Rasha Al-Morakhi, Mohammed Dasma, Lulwa Al-Mijrin, Meshal Abdul Hameed Al-Wadi, Karim Ousididene, Ahmed Moustafa, Mohab El-Masry, Sachindra Sharma, Nawal Kerrouche, Ramdane Bouchou, Mohamed Said

Unconventional Resources Technology Conference (URTEC)

.... Carbonate reservoir fracture evaluation is challenging in terms of type, density, aperture, and extension. Traditionally, fractured reservoirs...

Seismic-Profiler Survey of Blake Plateau

John Ewing , Maurice Ewing , Robert Leyden

AAPG Bulletin

... is remarkably smooth except near western edge. Sub-bottom reflectors all show stratification. Westward dip of 3 and 4 and roughness in reflector 4 shown...

A Practical Review of Migration Issues and Solutions; #40723 (2011)

Ian F. Jones

Search and Discovery.com

..., but are in general more dip-limited (as they use a truncated series expansion for the square root terms in the migration operator). Kirchhoff and beam techniques...

Structure and Stratigraphy of the Blake Escarpment Based on Seismic Reflection Profiles: Rifted Margins

R. E. Sheridan , C. C. Windisch , J. I. Ewing , P. L. Stoffa

AAPG Special Volumes

... section the deep reflector would continue to dip westward to a depth of approximately 3.4 km under the Blake Plateau from the shallower depth of 2.8 km...

Abstract: Kirchhoff Prestack Time Migration with Angle Domain Common Image Gathers; #90174 (2014)

Jianhua Pan, Robert Tilson, Gerry Schlosser, and Elvis Floreani

Search and Discovery.com

... method angle gathers are extracted at each image point by gradients of travel time from the source and the receiver to the reflector. In the second...

Late Cretaceous-Cenozoic Development of Outer Continental Margin, Southwestern Nova Scotia

Stephen A. Swift

AAPG Bulletin

... North Atlantic seismic reflector and unconformity eroded by abyssal currents in the Oligocene (Tucholke and Mountain, 1979). The section above horizon...

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 subsurface to be set up by reflector segments with arbitrary location, orientation, and curvature. This method does not require an explicit knowledge...