III. Evidence of Faulting

Robert E. Sheriff

AAPG Special Volumes

...------------------------- reflections with distinct character are offset on opposite sides of a fault and sometimes the overall reflection pattern shifts, even where...

Abstract: Some Workstation Techniques for Defining Reservoirs in Difficult Data Areas; #90171 (2013)

Norm Kalmanovitch, Dennis Meisinger, and Randi Christiansen

Search and Discovery.com

... offset approaches to reservoir determination. This is the case in the desert areas of North Africa that have a near surface configuration that to date has...

Seismic Interpretation Methodology for Fluvial Sandstone Reservoirs in Widuri Field, Offshore Southeast Sumatra, Indonesia

D. C. Carter, W. E. Harmony, L. Harvidya, G. Juniarto, S. Lestari, A. Purba

Indonesian Petroleum Association

... continuous marker horizons, such as coal seams. Amplitude variation with offset (AVO) is a successful lithology indicator. In the upper reservoirs...

Modern Marine 3D Seismic Acquisition - Technical Considerations

Chris Walker

Petroleum Exploration Society of Australia (PESA)

... analysed and the amplitudes at selected frequencies displayed • The process is repeated over a range of dips (0 -75°) at constant reflection point...

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

... based on the borehole and common depth point methods; 2-sub-salt interface based on a single reflection profile. There is a definite reduction...

Attributes Assisted Seismic Interpretation in Pre-Stack Time versus Depth Migration Data; #41637 (2015)

Tengfei Lin, Hang Deng, Zhifa Zhan, Zhonghong Wan, Kurt Marfurt

Search and Discovery.com

... is the depth of the scatter point, x is the location of the source-receiver midpoint (MP), and h is half of the source-receiver offset. Considering...

Seismic Data Preconditioning for Improved Reservoir Characterization (Inversion and Fracture Analysis); #41347 (2014)

Darren Schmidt, Alicia Veronesi, Franck Delbecq, and Jeff Durand

Search and Discovery.com

... (Common Offset Common Azimuth) and CACO (Common Azimuth Common Offset) displays are important, and should be reviewed to assess the presence of anisotropy...

P-S Converted Wave AVO Analysis for Reservoir Characterization

Ehsan Sadeghi, Cepi Adam, Effendy Siawira, Hilfan Khairy

Indonesian Petroleum Association

..., P-S indicates a downward propagating P-wave that converts to an upward propagating S-wave after being reflected at its deepest reflection point...

Stratton Field

Search and Discovery.com

Stratton Field

Search and Discovery.com

Velocity Anomalies and Out-of-Plane Reflections in Barnicarndy 1, Canning Basin

Y. Zhan

Australian Petroleum Production & Exploration Association (APPEA) Journal

... the reflection off the same subsurface point from different travel paths to be stacked together to provide a single vertical trace for geological interpretation...

Abstract: Progress in DAS Seismic Methods; #90224 (2015)

A. Mateeva, J. Mestayer, Z. Yang, J. Lopez, P. Wills, H. Wu, W. Wong, Barbara Cox, J. Roy, and T. Bown

Search and Discovery.com

... with later pulses. A properly installed fiber has low or no optical reflection from its end, or any other point. However, end-reflections are not uncommon...

Basement-Involved Inversion at the Appalachian Structural Front, Western Newfoundland: An Interpretation of Seismic Reflection Data with Implications for Petroleum Prospectivity

Glen S. Stockmal, Art Slingsby, John W. F. Waldron

CSPG Bulletin

... Point Formation (Figs. 2, 4, and 5). Map relationships and seismic reflection data demonstrate that the Humber Arm Allochthon was inserted into a thin...

I. Relation of Structural Section to Seismic Section

Robert E. Sheriff

AAPG Special Volumes

... collapses diffractions back to the point at the crest. The reflection from the top of the wedge and the reflection from the bottom of the wedge...

Combined Diving Wave Refraction Tomography and Reflection Tomography for PSDM Velocity Model Building (Bekapai Field, Indonesia)

Andi Kusuma, Florent Bertini, Jacques Bonnafe, Artem Sazykin, Swee Leng Ng

Indonesian Petroleum Association

... be combined with deeper PSTM velocity model and then further updated using reflection tomography, when the data have sufficient offset range, to obtain...

Where Is My Horizontal Well? Use of Borehole Seismic Where Velocities Vary Laterally

Agus Muharam, Frank Musgrove

Indonesian Petroleum Association

... way up well bore and reflection point at 2,625 feet offset). This poses several problems such as weak signal from long distance travel, energy...

How to Make Velocity Corrections

John W. Daly

AAPG Bulletin

... the adjustments have been made strictly in a vertical direction, without consideration of the shift in offset, or lateral migration, of the reflection...

Some Recent Advances in Exploration Geophysical Techniques and Data Processing

Edward F. Zagst, C. L. Robinson

GCAGS Transactions

..., 1962, Common reflection point horizontal staking techniques: Supplement to Geophysics, v. 27, p. 927-938. Marr, John D., 1964, Common depth point...

Seismic Imaging at Conger: Lessons Learned in Gulf of Mexico Subsalt Imaging

Thomas C. Bergeon, Brad A. Robison

GCAGS Transactions

..., the CM1 and CM2 sands (Fig. 5). The reservoirs were deposited in the proximal entry point portion of a ponded basin setting with accommodation space...

Abstract: 3-D Amplitude vs. Offset Analysis for Gas Hydrate Identification in the Northern Gulf of Mexico: MC 118 (Woolsey Mound);

Gokce Astekin, Camelia Knapp, James Knapp, Saiful Alam

Search and Discovery.com

... and, therefore, exhibit Amplitude Variation with Offset (AVO) effects due to free gas trapped underneath the hydrate charged sediment. We will perform AVO...

Abstract: Fracture Detection Via Azimuthal Analysis of Seismic Data: Snake Oil or silver Bullet?; #90187 (2014)

Mike Perz, Peter Cary, Xinxiang Li, and Satinder Chopra

Search and Discovery.com

... International Meeting, SEG Expanded Abstracts, 169-172. Rüger, A., 1998, Variation of P-wave reflectivity with offset and azimuth in anisotropic media...

Derivation of Seismic Depth Sections

H. Buchholtz, W. Houba

Geological Society of Malaysia (GSM)

... the same point, the dipping reflector segment B is exhibiting an extended reflection area. Since stacking velocities depend on dip obviously the NMO...

Abstract: Comparing Post-stack AVO Inversion to Prestack Inversion for Estimating Rock Properties; #90171 (2013)

Paul F. Anderson

Search and Discovery.com

... variation with offset (AVO) inversion of these gathers, in order to estimate the P-wave and S-wave reflectivities. One such method is the approximation...

Abstract: Comparing Post-stack AVO Inversion to Prestack Inversion for Estimating Rock Properties; #90171 (2013)

Paul F. Anderson

Search and Discovery.com

... variation with offset (AVO) inversion of these gathers, in order to estimate the P-wave and S-wave reflectivities. One such method is the approximation...

INPEX-Led Ichthys Joint Venture - Proudly Partnering with Indigenous Groups in the Northern Territory

Joshua J. Corbett, Christopher J. Carle

Australian Petroleum Production & Exploration Association (APPEA) Journal

... in the Northern Territory to deliver social and environmental offset programs. The key governance model for delivery of the offset programs is the Ichthys Project...