Growth Fault-Bend Folding at Southeast Lost Hills, San Joaquin Valley, California

Donald A. Medwedeff

AAPG Bulletin

... each material ( .e., physical) point in the fold to be at its maximum depth of burial. Contours of equal density and seismic velocity are relatively flat...

Refined Karst Feature and Fault Identification Through Integrated Wave Field Separation and Imaging of Diffraction Energy

Riaz Alai, Afiq Mokhtar, Christopher Lee Slind, Yonghe Guo, Rizki Krishna Pratama

Indonesian Petroleum Association

... in the image domain. On the other hand, post-migration separation is more prone to velocity errors so reasonably good velocity is needed and isolated diffraction...

Newtonia Field: A Model for Mid-Dip Lower Tuscaloosa Retrograde Deltaic Sedimentation

Michael D. Hogg

GCAGS Transactions

... high risk exploration and development in the mid-dip Lower Tuscaloosa Trend. In sparsely drilled areas, sand prediction by seismic velocity analysis...

Prestack Depth Migration for "Easy" Unconventional Plays?, #41056 (2012)

Morgan Brown

Search and Discovery.com

... three key reasons for (re)considering PSDM: 1) Remove false time structures caused by lateral variations in velocity. The ‘fault shadow’ effect...

A New Approach to Shale Compaction and Stratigraphic Restoration, Beaufort-Mackenzie Basin and Mackenzie Corridor, Northern Canada (1)

D. R. ISSLER

AAPG Bulletin

... in Pliocene-Pleistocene strata and on the character of shale sonic velocity vs. depth plots. The location of the boundaries that separate these zones...

Practical Use of Borehole Seismic in Exploration; Goals and Shortcomings

F. Sandnes, L. Nustt, S. G. Henry

Indonesian Petroleum Association

... processing. The Alias frequency is given by; where V is velocity of the formation and D is the separation of the levels in depth. By sampling the well...

The Maleo Field: An Example of the Pliocene Globigerina Bioclastic Limestone Play in the East Java Basin - Indonesia

Yanyan Triyana, Gregory I. Harris, Wayne A. Basden, Ed Tadiar, Neil C. Sharp

Indonesian Petroleum Association

... been undertaken using the stacking velocity data from the 3D (500 m x 500 m velocity analysis nodes) calibrated to the six well penetrations. The main...

Seismic Detection of Upper Dakota Sandstones on the Moxa Arch, Green River Basin, Wyoming, Using Amplitude Versus Offset Data

C. Dean Lausten

Wyoming Geological Association

... the offset modeled and seismic data is extremely subtle. Since small stacking velocity errors could alter the signature considerably, the full stack...

Abstract: Velocity Problems not Related with Thrusting or Salt Tectonics, by O. Ferraris, A. Salinas, M. Koremblit, and D. Soubies; #90933 (1998).

Search and Discovery.com

Exploration for Oil Accumulations in Entrada Sandstone, San Juan Basin, New Mexico

Richard R. Vincelette , William E. Chittum

AAPG Bulletin

... and the resultant error in mapping in time or converting seismic times to depth without considering the effect of thickness variations in the overlying high...

Tulip Field 3D Coil Shooting Survey„Preliminary Data Processing Results

Michele Buia, Riccardo Vercesi, Michelle Tham, Dmitry Nikolenko, Andreas Tyasbudi Waluyo, Swee Leng Ng

Indonesian Petroleum Association

.... This phenomenon has a variable impact as a function of the water depth resulting from variable water column velocities and/or tides. The effect may...

Characterization of Controls on High-Resolution Stratigraphic Architecture in Wave-Dominated Shoreface–Shelf Parasequences Using Inverse Numerical Modeling

Karl Charvin, Gary J. Hampson, Kerry L. Gallagher, Joep E. A. Storms, Richard Labourdette

Journal of Sedimentary Research (SEPM)

... architecture at parasequence-stacking and intra-parasequence scales was driven principally by relative sea level (varying by up to about 55 m...

Laterally accreting sinuous channels and their deposits: The Goldilocks of deep-water slope systems

R.W.C. Bill Arnott, Mike Tilston, Patricia Fraino, Lillian Navarro, Gerry Dumouchel, Nicole Miklovich

Journal of Sedimentary Research (SEPM)

... to a density gradient that mimics the effect of the hydrostatic pressure gradient in rivers, and develops as coarse suspended particles that experience...

Second-Order Accommodation Cycles and Points of “Stratigraphic Turnaround”: Implications for Carbonate Buildup Reservoirs in Mesozoic Carbonate Systems of the East Texas Salt Basin and South Texas

R. K. Goldhammer

West Texas Geological Society

..., retrogradational - aggradational/progradational accommodation packages. Each exhibits systematic vertical/lateral stacking patterns of subordinate...

Mapping Stratigraphic Traps with Seislog

Roy O. Lindseth

Indonesian Petroleum Association

..., this can be converted to solve for velocity from the series of reflection coefficients: The effect of the application of the above formula...

Resolution limits of fluid overpressures from mineralogy, porosity, and sonic velocity variations in North Sea mudrocks

Christian Hermanrud, and Oddgeir Undertun

AAPG Bulletin

..., observed deviations from reference velocity versus depth trends are converted to pore pressure changes with little or incomplete analyses of potential...

Along-Axis Segmentation and Growth History of the Rome Trough in the Central Appalachian Basin1

Dengliang Gao, Robert C. Shumaker, and Thomas H. Wilson

AAPG Bulletin

... of the trough. Increasing dip of the reflections with depth indicates that rotational subsidence largely occurred during the rift stage, and that differential...

Abstract: Near-surface S-wave Velocity from an up Hole Survey using Explosive Sources; #90187 (2014)

Saul E. Guevara, Gary F. Margrave, and William M. Agudelo

Search and Discovery.com

... picked (Figure 4a) and velocity models with depth were obtained for P and S-waves (Figure 4b). Picking the S-wave event was less obvious than the P...

ABSTRACT: Ultra-High Resolution 3-D Characterization of Deep-Water Deposits-I: A New Approach to Understanding the Stratigraphic Evolution of Intra-Slope Depositional Systems; #90013 (2003)

R. T. BEAUBOUEF, V. ABREU, N. L. ADAIR

Search and Discovery.com

... continental slope in approximately 1500-m water depth (Figure 1). The basin represents the terminal portion (Basin 4) of a well-known chain of four Pleistocene...

Estimation of Reservoir Fluid Saturation from 4D Seismic Data: Effects of Noise on Seismic Amplitude and Impedance Attributes

Rafael Souza, David Lumley, Jeffrey Shragge

Petroleum Exploration Society of Australia (PESA)

... flow models. However, 4D seismic estimates of P-wave impedance can contain significant errors associated with the effects of seismic noise...

Abstract: Effects of Miocene Climatic Fluctuations on Fluvial Architecture in Andean Continental Environments; #90321 (2018)

Scott Meek

Search and Discovery.com

... (channel dimensions and stacking patterns) and facies associations of fluvial deposits affect reservoir quality and reflect changing climate...

Quantitative Assessment of Hydrocarbon Charge Risk in New Ventures Exploration: Are We Fooling Ourselves?

Noelle B. Schoellkopf

AAPG Special Volumes

... at several well locations across the basin. As shown in Figure 5, the effect of this first velocity model on the depth maps was to create a dip...

Correlation of Reflection Seismograph Records in California

Henry Salvatori

AAPG Bulletin

... of about 2°. Where the velocity is not accurately known, there will be introduced an additional error in the dip determination roughly equal to the product...

4D batchŽ FWI „ Sampling the null-space and random matrix theory

Madhav Vyas, Simon Luo, Esteban Díaz

International Meeting for Applied Geoscience and Energy (IMAGE)

...-location of the shot and receiver positions with the baseline. In processing, we correct for source and receiver positioning errors, water-velocity...

Chapter 9: The Zafarani and Tangawizi Giant Gas Discoveries: Two Very Different Play Openers Offshore Tanzania

Clemens Pirker, Nadya Badmaeva

AAPG Special Volumes

.... This proved to be beneficial because depth trend analysis indicates at what depth a breakdown of a potential fluid effect for gas and oil is expected...