The Geophysical Aspects of Abnormal Fluid Pressures

Edward B. Reynolds, John E. May, Alf Klaveness

Houston Geological Society

... routinely using Common Depth Point (CDP) data to generate plots of root mean squared velocity versus reflection time. These same plots can also be used...

Structure of Extensionally Rifted Crust Beneath the Western Ross Sea and Iselin Bank, Antarctica, from Sonobuoy Seismic Data

A. K. Cooper, F. J. Davey, G. R. Cochrane

Circum Pacific Council Publications

... is the velocity corrected for layer dip; h is the layer thickness in km; D is the layer dip in degrees (- indicates increasing depth along shotline). 96...

Abstract: Relationships Between Resistivity, Velocity and Depth in the Vøring Basin, Offshore Norway, by Lars B. Hubert; #90082 (2008)

Search and Discovery.com

Salinity and Temperature Anomalies over Structural Oil Fields, Carter County, Oklahoma

C. L. McConnell

AAPG Bulletin

... salinity (in mg/L total dissolved solids) of Carter County at depth of 300 ft (90 m). Salinity is computed from SP log using locally derived Rwe-Rw...

Abstract: Estimating Q from Hydraulic Fracture Related Seismicity; #90187 (2014)

Gisela Viegas, Adam Baig, Ted Urbancic, Eric von Lunen, Jason Hendrick, and Sean Lovric

Search and Discovery.com

... the way the seismic energy is dissipated during wave propagation. If not properly accounted for attenuation can bias calculations of earthquake source...

2D Pre-Stack Depth Migration : Application to Inverted Grabens

C. Bunks, P. L. Pichon, L. Ben Brahim, Sekar Sakti

Indonesian Petroleum Association

... an in house 2D pre-stack depth migration and velocity analysis program called MIGPACK. MIGPACK performs finite-difference migration in the source geophone...

Understanding Field Performance of Hydraulically Fractured Wells: Comparison of Pressure Front Versus Tracer Front Propagation Using the Fast Marching Method (FMM) and Complex Analysis Method (CAM)

Kiran Nandlal, Chen Li, Ching-Hsien Liu, Venkata Bala Krishnateja Chavali, Michael J. King, Ruud Weijermars

Unconventional Resources Technology Conference (URTEC)

... field flows which was further expanded upon by using complex functions to represent the potential and stream functions (Batchelor 1967, Weijermars...

Diving wave tomography: Velocity modelling using first arrival traveltime

Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu

Geological Society of Malaysia (GSM)

...Diving wave tomography: Velocity modelling using first arrival traveltime Amatul Syafi Abdul Basit, Abdul Rahim Md Arshad, Arulini Permalu Bulletin...

Importance of Good Time to Depth Conversion method to Reduce GRV Uncertainties of Producing Fields in the South Sumatra Block�.

Search and Discovery.com

Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)

Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang

Search and Discovery.com

... for the near surface. We compute the traveltimes associated with all shot and receiver locations by ray tracing using the initial velocity depth model...

Cross-Borehole Tomography in Development Geology: Part 7. Geophysical Methods

J. H. Justice, M. E. Mathisen, J. R. Bulau, A. A. Vassiliou

AAPG Special Volumes

... is important. Cold colors (blues) should be used for high velocity fields with a transition to hot colors (reds) for low velociti s. Using these guidelines...

Plate Kinematics of the Gulf of Mexico Based on Integrated Observations from the Central and South Atlantic

Erik A. Kneller, Christopher A. Johnson

GCAGS Transactions

... and the depth of the Moho from onshore receiver functions (Li et al., 2002; Ramesh et al., 2002; Fnais, 2004) and offshore refraction data (Lizarralde...

Rock Physics Template and its Significance in Velocity Model Building and Pore Pressure Prediction

Search and Discovery.com

Imaging Seismic Data with High Resolution Gravity Data.

R. Opfer

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... Cuencas Subandinas Figure 2. The GravStat model. P-density, V-velocity, d-depth. Figure 5. The GravStat model. Figure 3. Datum velocity & Bouguer...

Enhancing Limited Log Suites with Neural Networks

J.S. Arbogast, M.H. Franklin, M.L. Butler, K.A. Thompson

Rocky Mountain Association of Geologists

... Volume Water Figure 9. Cross section A-A’ as interpreted using neural-network-derived logs and resultant petrophysical calculations in the four wells...

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

... is utilized to determine an explicit formula for azimuthally-dependent NMO velocity in a HTI layered media with depth-varying orientation...

NMO Inversion for Multilayer Subsurface with Horizontal Transverse Isotropic layers

E. Blias

Search and Discovery.com

... is utilized to determine an explicit formula for azimuthally-dependent NMO velocity in a HTI layered media with depth-varying orientation...

Fault Shadow Correction Methodology

P. Julien, J. L. Broyer, O. Bernet-Rollande

Indonesian Petroleum Association

... method. An initial 2D-depth model is built using dip seismic lines and a regional velocity function, which is then manually edited to remove...

Seismic Stratigraphy — Lodgepole Play Examples

John A. Andrew

Montana Geological Society

... frequency by the estimated rock velocity. He also says that lateral resolution is a function of both wavelength and depth. Energy reflected...

Interpretation Methods in the Exploration of Oligocene-Miocene Carbonate Reservoirs, Offshore Northwest Madura, Indonesia

David C. Carter, Dwi Mandhiri, Robert K. Park, Imron Asjhari, Syaiful Basyuni, Sergey Birdus, John P. Bradfield, Ary Iriawan, Meutia Nasfiah, M.A. Agung Nugroho

Indonesian Petroleum Association

.... Depth-velocity model updates are then performed to optimize the velocity model using an iterative flow that involves the following steps: (i...

A field data application of RockAVO: Data-driven, direct petrophysical inversion of prestack seismic data

Miguel Corrales, Hussein Hoteit, Matteo Ravasi

International Meeting for Applied Geoscience and Energy (IMAGE)

... petrophysical models for the stage of ’post-stack seismic inversion’ per parameter, using petrophysical well-log data and the velocity at well locations...

Anisotropic Depth Migration Applied in an Area of the Colombian Llanos Foothills as a Tool for Understanding the Structure in Depth

Isabel Cristina Florez, Rob Vestrum

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

... depth migration used in this study required a velocity volume with parameters for the normal-tobedding velocity, the dip direction and dip of bedding...

Velocity Modeling with Complex Tectonics; Example from the San Joaquin Forearc Basin, California; #41950 (2016)

Lisa Alpert, Josué Rosas

Search and Discovery.com

... fault affecting a horizon we have two new horizons, the upper and lower blocks in our model, and the velocity functions will be truncated against each...

ABSTRACT: The application of AVO, seismic attributes, and velocity mapping in understanding the Doina discovery in offshore Romania, Black Sea Province; #90109 (2010)

Phil Mollicone, Paul Duley, Stephen Birrell, Anthony Fogg

Search and Discovery.com

... analogue to invoke variable (lower) velocity channel fill that would result in TWT pushdown sufficient to cause the non-conformance between depth maps...

A Case History of Geoseismic Modeling of Basal Morrow-Springer Sandstones, Watonga-Chickasha Trend: Geary, Oklahoma--T13N, R10W: Section 3. Stratigraphic Models from Seismic Data

William A. Clement

AAPG Special Volumes

... which allowed the construction of a predicted geologic model using an interval velocity--density versus depth distribution--from which reflection...