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The AAPG/Datapages Combined Publications Database

Showing 15,811 Results. Searched 195,387 documents.

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Variation of Bottom-simulating-reflection Strength in a High-flux Methane Province, Hikurangi Margin, New Zealand

Stuart A. Henrys, Derek J. Woodward, Ingo A. Pecher

AAPG Special Volumes

... were used to estimate the reflection coefficient of BSRs with a gas concentration above which compressional wave velocity is mostly insensitive to gas...

2009

Extraction and Interpretation of the Complex Seismic Trace

R. E. Sheriff, M. T. Taner, F. Koehler, D. Frye

Indonesian Petroleum Association

... at the time of the maximum may be either positive or negative, depending on whether the reflection coefficient is positive or negative, how the interference...

1977

Seismic Evidence for Widespread Possible Gas Hydrate Horizons on Continental Slopes and Rises

Thomas H. Shipley, Mark H. Houston, Richard T. Buffler, F. Jeanne Shaub, Kenneth J. McMillen, John W. Ladd, J. Lamar Worzel

AAPG Bulletin

... to gas hydrates have a reflection polarity reversal, a large reflection coefficient, and show increasing subbottom depth with increasing water depth...

1979

Abstract: P- and S-Wave Velocity Measurements and Pressure Sensitivity Analysis of AVA Response; #90211 (2015)

Tiewei He and Douglas Schmitt

Search and Discovery.com

... with the effective stress coefficient being 1. Figure 5 shows P-P and P-Sv reflection coefficient as a function of angle of incidence and effective pressure...

2015

Effect of Pressure on the Reservoir Properties of Sandstones

V. M. Dobrynin

Petroleum Geology: A Digest of Russian Literature

... calculations. Nevertheless, it is possible to estimate quantitatively the volume changes in the pore space by means of the coefficient of pore...

1963

Amplitude Recovery of Digitally Recorded Data

Roy O. Lindseth

Pacific Section of AAPG

... coefficient is calculated. Each reflection coefficient is a simple function of the velocities at either side of the boundary. The resulting series...

1972

VSP Fundamentals that Improve CDP Data Interpretation: ABSTRACT

J. E. Gaiser, J. P. Disiena

AAPG Bulletin

..., a trough corresponds to a positive reflection coefficient. These reflections can be shifted to their two-way traveltime and stacked to produce a VSP...

1983

Relationships between Pre-Existing Structure, Regional Stress Orientation, and Seismicity Induced by Wastewater Injection, Northern Appalachian Basin, USA; #41700 (2015)

James Free, Brian S. Currie, Robert J. Skoumal, Michael R. Brudzinski

Search and Discovery.com

... in nearby seismic reflection lines are associated with basement-involved fault systems that cut the injection interval, providing a possible permeability...

2015

Synthetic Seismograms from Vibracores: A Case Study in Correlating the Late Quaternary Seismic Stratigraphy of the New Jersey Inner Continental Shelf

Dominic Esker , Robert E. Sheridan , Gall M. Ashley , Jeffrey S. Waldner , David W. Hall

Journal of Sedimentary Research (SEPM)

... impedance log. These values are then mathematically manipulated according to the formula [p2V2 - p1V1]/[p2V2 + p1V1] = Reflection Coefficient (1) where p2...

1996

Reflection waveform inversion regularized with structural constraints and scattered data interpolation

Chengliang Wu, Huazhong Wang, Bo Feng, Ting Lei, Rongwei Xu, Shen Sheng

International Meeting for Applied Geoscience and Energy (IMAGE)

... are employed to estimate the dip angle at the reflection interface, where the angle with the highest similarity coefficient represents the estimated dip angle...

2023

Abstract: SEISMIC INVERSION DATA, A TOOL FOR RESERVOIR CHARACTERIZATION / MODELING, SAWAN GAS FIELD … A CASE STUDY; #90140 (2012)

Mohammad Ibrahim

Search and Discovery.com

... as the convolution of the estimated wavelet and a reflection coefficient series representing the geology. The processing of seismic data for inversion...

2012

Physical Basis of Reflection Seismology

Bruce S. Hart

Special Publications of SEPM

...--L-Q1v_I Pzv2 + Pw, This ratio is referred to as the reflection coefficient (RC) and its value depends on the nature of the changes in physical...

2000

Application of Amplitude, Frequency, and Other Attributes to Stratigraphic and Hydrocarbon Determination: Section 2. Application of Seismic Reflection Configuration to Stratigraphic Interpretation

M. T. Taner, R. E. Sheriff

AAPG Special Volumes

... be either positive or negative, depending on whether the reflection coefficient is positive or negative, how the interference of successive reflections...

1977

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

JOHN J. MILLER , MYUNG W. LEE , and ROLAND VON HUENE

AAPG Bulletin

... OF REFLECTION COEFFICIENTS The reflection coefficient of the sea floor (Rc[sf]) was determined from the ratio of the amplitude of the sea floor...

1991

Seismic Stratigraphy and Global Changes of Sea Level: Part 6. Stratigraphic Interpretation of Seismic Reflection Patterns in Depositional Sequences: Section 2. Application of Seismic Reflection Configuration to Stratigraphic Interpretation

R. M. Mitchum Jr., P. R. Vail , J. B. Sangree

AAPG Special Volumes

... reflection will be continuous if the reflection coefficient of the unconformity is significantly greater than the reflec ion coefficients of the underlying...

1977

Chapter 119: Synthetic Seismic Modeling of Turbidite Outcrops

Mark Chapin, Gottfried Tiller

AAPG Special Volumes

... reflection-coefficient displays where seismic peaks and troughs represent lithology interfaces, and (2) RUNSUM data, a display commonly used by Shell...

2007

Enhancing Reservoir Imaging and Monitoring Using Crosswell Seismic

Sanjeev Dogra, Ajay Nalonnil, Bruce Marion

Indonesian Petroleum Association

... profiling in time lapse and provide answers as to why and how the flow has occurred through interpretation of the reflection seismic section. INTRODUCTION...

2010

An Electronic Seismic Dip Plotter

J. A. Westphal

Oklahoma City Geological Society

.... It is necessary to adjust the coefficient potentiometers at only one value of reflection time and t. However, the cam, being a function of both...

1958

Abstract: Intrinsic and Apparent Seismic Attenuation in VSP Data; #90211 (2015)

Arnim Haase and Robert Stewart

Search and Discovery.com

... dependence. Q-factors compensated for transmission losses are estimated in this study by computing running transmission coefficient products derived from...

2015

Shallow Seismic Survey on Weeks Island, Louisiana ... an Attempt to Define "Top of Salt"

G. L. Kinsland , A. W. Rutter III

GCAGS Transactions

...] = 0.28 shows that the "top of salt" reflection coefficient is considerably less than that for the "7,000 ft/s" reflector. In addition, reflecting 0.63...

1994

Methods in Exploration Series #2: Seismic Models of Sandstone Stratigraphic Traps in Rocky Mountain Basins - Introduction

Robert T. Ryder, Myung W. Lee, Gerald N. Smith

AAPG Special Volumes

... and have low to moderate acoustic impedance contrast with adjacent non-reservoir strata (i.e. reflection coefficient (Rc) is generally less than 0.2...

1981

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