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The AAPG/Datapages Combined Publications Database

Showing 28,218 Results. Searched 194,691 documents.

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Seismic Migration Interpolation using Time-Shift Imaging Condition

Mark Ng

Search and

... variable space and time lag imaging methods, have been used for depthfocusing analysis (DFA) for migration velocity analysis (MacKay and Abma, 1992...


AVO Inversion in Marine Gas Hydrate Studies; #41603 (2015)

Marc-André Chen, Stan Dosso, George Spence, Michael Riedel, Roy Hyndman

Search and

...- and S-wave velocity (Vp, Vs) and density (ρ) of both media) at a gas hydrate related BSR interface. The parameter MPD’s are related to gas hydrate and free...


Quality Data at a Reduced Price: Innovative Approaches in 3-D Acquisition and Processing

Mars E. Semaan, Michel F. Bee, Maryanto, Gerard Dufourd, Eddy A. Sentani

Indonesian Petroleum Association

..., the traditional design would have dictated a constant bin sizes of 7.5 * 15 m for the entire survey. The variable bin sizes presented here resulted in a 57...


Application of Robust Noise Reduction on a Land 3D Seismic Data

Agus Abdullah, Jesse Shaw

Indonesian Petroleum Association

... when 2 < xc < , where vn is an arbitrary dummy variable in the form of reference velocity, the beamformed field can then be expressed in the form...


North Knox City Field, Knox County, Texas: Case Histories

J. C. Harwell, W. R. Rector

AAPG Special Volumes

... Canyon on the periphery of the feature. Present subsurface control indicates that no Caddo structure exists. The reflection-time "high" was a velocity...


Delta Formation: DISCUSSION

C. H. Crickmay

AAPG Bulletin

... velocity, and of variable velocity over the efflux section as all streams are in Nature. None of them can conceivably be "free jets" as the article...


Lithologically Controlled Pore Pressure Prediction and Geomechanical Modeling Using Probabilistic Multivariate Clustering Analysis and an Expert System

Alan A. Curtis, Eric Eslinger, Randy Nickerson, Siva Nookala, Francis Boyle

Unconventional Resources Technology Conference (URTEC)

... for Lithology Determination Multi-well Classification and Prediction Whilst the subsequent velocity modelling, pressure predictions, and geomechanical modelling...


The Fish Scales, a Hybrid Shale Gas Play … Characterization, Regional Extent and Controls on Productivity

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... and variable mineralogy, complicating log interpretations. However, detailed geological, mineralogical and geochemical as well as modern log data have...


Loss of Capacity, Not Competence, As the Fundamental Process Governing Deposition from Turbidity Currents

Richard N. Hiscott

Journal of Sedimentary Research (SEPM)

.... (April), A common procedure in paleohydraulic analysis is to use some measure of the size of particles in a deposit to estimate flow velocity...


Sediment Thickness and Depth to Basement in Western North Atlantic Ocean Basin

Brian E. Tucholke , Robert E. Houtz , William J. Ludwig

AAPG Bulletin

.... Velocity regression equations and velocity estimates determined statistically from 17 provinces in the basin are used to convert reflection time...


Discrimination of Depositional Environments Using Settling Tube Data

Asahiko Taira , Peter A. Scholle

Journal of Sedimentary Research (SEPM)

...-velocity distributions of more than 500 modern and near-modem river, dune, beach, tidal-flat, and turbidite sediment samples were analyzed using...


Passive Margins: Shelf-to-Basin Correlations off Eastern Canada: Developing a Seismic Stratigraphic Framework in the Northern Newfoundland Basin

Karen J. Meador, James A. Austin, Jr., and Donald F. Dean

AAPG Special Volumes

... Newfoundland basin off eastern Canada (Figure 1) by using three seismic stratigraphic techniques: 1. Calibration of lithology and velocity logs from...


Foredeep: Three Seismic Profiles Through The Po Plain

M. Pieri

AAPG Special Volumes

... Deconvolution: DBS-MIN. PHASE INV. FILTER (32-200 ms operator - 2 windows) Frequency Filtering: VARIABLE within 10-50 Hz Automatic Statics: surface...


Washed-Out Ripples: Their Equilibrium Dimensions, Migration Rate, and Relation to Suspended-Sediment Concentration in Very Fine Sand

Jaco H. Baas , Herman De Koning

Journal of Sedimentary Research (SEPM)

... are stable between 10°C-equivalent depth-averaged flow velocities of 0.75 m/s and 0.91 m/s. With increasing velocity in this range the 10°C-equivalent average...


An Analysis of a Seismic Reflection from the Base of a Gas Hydrate Zone, Offshore Peru (1)


AAPG Bulletin

.... 759-769. Domenico, S. N., 1976, Effect of brine-gas mixture on velocity in an unconsolidated sand reservoir: Geophysics, v. 41, p. 882-894. Ewing...


Chapter 14 (Case Histories of Three-Dimensional Seismic Surveys)—Case History 9: Lisburne Porosity — Thickness Determination and Reservoir Management from 3-D Seismic Data

S. F. Stanulonis, H. V. Tran

AAPG Special Volumes

..., and limited to the south and west by a variable oil-water contact. A porosity cross section through the area (Figure 14-9-1) shows the porosity is highly...


Dynamics of Bedforms in the Lower Mississippi River

David J. Harbor

Journal of Sedimentary Research (SEPM)

... to predict bedform dynamics from synoptic hydraulic data; for example, Johnson (1879) determined that bedform migration was a function of flow velocity...


High-resolution seismic detection of shallow natural gas beneath Hutchinson, Kansas

Susan E. Nissen, W. Lynn Watney, Jianghai Xia

Environmental Geosciences (DEG)

... shales. Gas in fractures can reduce the velocity of the dolomite interval to that of the shales (or lower). Depending on the magnitude of the velocity...


Model-Based, 2-D Seismic Definition of Subthrust Structure in the Uranium Peak Area, Northwest Colorado

George C. Robertson, Dirk W. McDermott, Rex L. Tang

Rocky Mountain Association of Geologists

... intervals for prestack depth migration (Fig. 5). The final (pre-drilling) time-velocity model (Fig. 6) employed a variable velocity interval of 12,000...


EEI Inversion Technique to Determine Fluid Types and Sand Geometry in Mature Field Study Case: G Sand ReservoirŽ in the Northern Mutiara

Benyamin, Iranta Bona, Irma Hermawaty, Sonny Winardhi, Teguh Nugraha

Indonesian Petroleum Association

... of geophysical analysis is required to identify and examine the sand geometry and hydrocarbon content in this complex environment. The study used multi-variable...


Investigating Depth Structure Uncertainty for Horizontal Well Placement, Bauer Field, Cooper-Eromanga Basin

Erin Shirley

Australian Petroleum Production & Exploration Association (APPEA) Journal

... and variable seismic velocity distribution in the shallow layers. The Bauer Field is covered by the Modiolus 3D seismic survey that was originally...


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