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The AAPG/Datapages Combined Publications Database
Showing 29,449 Results. Searched 200,691 documents.
Reservoir Characterization from Multi-Component Seismic Data in the Drinkard Formation of Vacuum Field, Lea County, New Mexico
Michael A. Raines, Tom Davis
West Texas Geological Society
... of compressional wave velocity to (fast) shear wave velocity. Lighter shades exhibit more contrast. Note that the lightest areas seem to correspond to relatively...
2004
Geology of the Tunu Gas Field
Sujatmiko, Agus Salim, Bambang Seto Irawan
Indonesian Petroleum Association
... correction problems and velocity anomalies, therefore the lateral continuity of seismic markers is not sufficient for confident mapping. Sand percentage...
1984
The Porosity Logs
John H. Doveton
Special Publications of SEPM
... of type (see page 97). The sonic acoustic velocity log The measurement of acoustic velocity by the sonic tool was originally introduced to aid...
1994
Toward elastic free-surface topography with immersed boundaries
Edward Caunt, Rhodri Nelson, Fabio Luporini, Gerard Gorman
International Meeting for Applied Geoscience and Energy (IMAGE)
... differential equations (PDEs), these being ∂t = C : e, ∂t ∂v 1 = — · t, ∂t r and (1) (2) where ⌘ 1⇣ —v + (—v)T . (3) 2 Stress and velocity are given...
2024
Petrophysical characterization of the mineralization at the Lisheen Zn Pb deposit, Ireland
Nanyu Wei, Tommie Tormey, Aline Melo, Koen Torremans, John Güven
International Meeting for Applied Geoscience and Energy (IMAGE)
... susceptibility, P-wave velocity, and density. There are three main stages of hydrothermal alteration in the process of mineralization. The first one...
2024
Evolution of Depositional Patterns in the Mississippi Sound During the Late Holocene
Brian M. Velardo, Samuel J. Bentley
GCAGS Transactions
..., or both. Figure 2 displays the wave friction velocity (U∗) with respect to water depths, wave height, and wave period (calculated from EQ.3; Wright...
2005
Modeling of Proppant Flowback to Quantify and Predict Its Impact on Shale Gas Production Under Different Drawdown Strategies A Vaca Muerta Case Study
Agustin G. Garbino, D. Nicolas Espinoza, Mark McClure, Marcelo Pellicer, Iñaki Barrangu, Sebastian Olmos, Raul Varela
Unconventional Resources Technology Conference (URTEC)
... conductivity cells to study the impact of key factors on proppant flowback. Their observations indicated that the critical fluid velocity required...
2024
Chapter Thirteen: 4-D Reservoir Monitoring
Alistair R. Brown
AAPG Special Volumes
... of 100°C decreases its velocity by 50%. This was observed by push-down of a deeper reflector and by increased amplitude in the tar sand section...
2011
Part 1: Introduction
Francis P. Shepard, Neil F. Marshall, Patrick A. McLoughlin, Gary G. Sullivan
AAPG Special Volumes
... Ekman current meters that gave only an integrated current velocity for short periods, followed by long intervals before repetition could be made...
1979
Abstracts: What Receivers will we use for Low Frequencies?; #90173 (2015)
R. Malcolm Lansley and Peter Maxwell
Search and Discovery.com
... have a natural frequency of 10Hz providing a flat response proportional to ground velocity above this frequency and a response falling at 12 dB/octave...
2015
Abstract: Two Issues about the Application of VP/VS: Quality Improvement and Error Analysis; #90211 (2015)
Duojun Zhang and Larry Lines
Search and Discovery.com
... laterally, the error will be variable laterally. We assume that: VS≈VS1≈VS2≈1500 m/s (since velocity of S-wave does not change dramatically due to production...
2015
Geological and Geophysical Studies in Western Part of Bengal Basin, India
Supriya Sengupta
AAPG Bulletin
..., but only locally, in this area. VELOCITY-LITHOLOGY CORRELATION Deep-hole velocity surveys were conducted in all 10 wells drilled in West Bengal. Normally...
1966
Acoustic nonlinear full-waveform inversion on an outcrop-based detailed geological and petrophysical model (Book Cliffs, Utah)
Daria Tetyukhina, Stefan M. Luthi, Dries Gisolf
AAPG Bulletin
... parameters, compressibility (inversely related to the square of the compressional wave velocity vP) and bulk density, ρ, are recovered at a resolution...
2014
Geological Impact of Sediment Transporting Events on the Washington Continental Shelf
Nancy B. Kachel, J. Dungan Smith
CSPG Special Publications
... is the concentration at that point and u is the flow velocity there. The line beneath a variable indicates that it is a two-dimensional vector quantity...
1986
Trishear: A Review of Kinematics, Mechanics, and Applications
Stuart Hardy, Richard W. Allmendinger
AAPG Special Volumes
... in terms of velocity fields has enabled systematic explorations of the parameters controlling the trishear geometry; rapid, objective application...
2011
High-Density Suspensions Formed Under Waves
Michael P. Lamb, Jeffrey D. Parsons
Journal of Sedimentary Research (SEPM)
... to 81 g/l scaling roughly with the wave orbital velocity. HDS were defined by the presence of a lutocline, an abrupt change in vertical concentration...
2005
Seismic Investigation of a Surface Collapse Feature at Weeks Island Salt Dome, Louisiana
Richard D. Miller, Jianghai Xia, Richard S. Harding, James T. Neal, John W. Fairborn, Don W. Steeples
Environmental Geosciences (DEG)
... the only velocity and/or density contrasts detected between ground surface and just beneath the salt dome top. The 28-m reflector identified on both VSP...
1995
Seismic Acquisition and Processing for Sub-thrust Imaging and Prospecting, Suaza Valley, Colombia
G.W.Paukert, G. Billings, I.Dawes, T.D.J. England, G.Rait
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... time migration. Migration velocity analysis was performed by comparing local image quality on a large number of constant velocity migrations. A variable...
2003
Capturing elusive subsalt 4D signals in Atlantis field with 4D elastic FWI imaging
Obi Egbue, Li Jiang, Chi Chen, Sabrina Strauss, Zedong Wu, Zhiyuan Wei
International Meeting for Applied Geoscience and Energy (IMAGE)
... for the compressional wave velocity (Vp) as the sole independent variable. Moving to multi-parameter (Vp, Vs, and density) FWI would be helpful in providing more...
2024
Geology of the Davis Strait Bathymetric Sill and Associated Sediments, Offshore Baffin Island Canada
F. K. Wallace
CSPG Special Publications
... a variable thickness of low and medium velocity sediments in the Davis Strait region. Sediment thickness is in large part controlled by the Davis Strait...
1973
The Combined Effects of Wave Motion and Tidal Currents on the Morphology of Intertidal Ripple Marks: The Wash, U.K.
C. L. Amos , M. B. Collins
Journal of Sedimentary Research (SEPM)
..., Sediment movement in relation to current velocity: Jour. Sed. Petrology, v. 20, no. 3, p. 148-160. POSTMA, H., 1967, Sediment transport...
1978
Eolian Suspension Above the Saltation Layer, the Concentration Profile
J.A. Gillies, L. Berkofsky
Journal of Sedimentary Research (SEPM)
...) and variable estimates for observed dust storm conditions using Eq. 5 and different values of settling velocity, s. End_Page 182...
2004
Turbulent Process Modeling of the Dynamic Flow-Bottom Interaction; #50307 (2010)
Paulo L.B. Paraizo, Marco A.S. Moraes, Renato N. Elias, Alvaro L.G.A. Coutinho
Search and Discovery.com
... the turbidite numerical models in two general trends: a – LAYER – AVERAGED MODELS - 2D models - use vertically averaged velocity and concentration...
2010
Numerical Modeling of Adsorption and Roughness Effects on Gas Transport in Shale Using the Lattice Boltzmann Method; #42070 (2017)
Yan Zeng, Zhengfu Ning, Yunan Li
Search and Discovery.com
... effects on gas flow. The streamlines near rough surface are distorted and the axial velocity is strengthened. This is because gas molecular and rough...
2017
Interpretation of 2-D Seismic Data
Bruce S. Hart
Special Publications of SEPM
... and interpret structural features . Since velocities are variable with depth, distortion of fault planes and bed thickness due to velocity effects...
2000