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The AAPG/Datapages Combined Publications Database
Showing 42,752 Results. Searched 200,636 documents.
Segregating Porosity-Permeability Transform Using Elocity and Pore Structure in Carbonate Rock
Albertus Ditya, Gregor P. Eberli, Don McNeill, James Klaus
Indonesian Petroleum Association
... by segregating the sonic velocity and porosity log relationships using pore structure information from the DIA analysis. INTRODUCTION Acoustic velocities...
2015
The Effects of Size-Selective Feeding by Oligochaetes on the Physical Properties of River Sediments
Michael J. S. Tevesz, Frederick M. Soster, Peter L. McCall
Journal of Sedimentary Research (SEPM)
... useful indicator of low current velocities and low rates of inorganic sediment accumulation in ancient fluvial environments. ALLER, R. C., AND DODGE, R...
1980
The Integration of Geophysical, Geological and Petrophysical Data: A Case Study in North West Java, Indonesia
M. Koswara, J. Negre, L. Hendrata
Southeast Asia Petroleum Exploration Society (SEAPEX)
... average velocities from the stacking velocities, which in turn will be used to generate velocity maps, using well control from the west branch. Seismic...
1990
Structural Style, Sequence and Timing in the Acevedo Block: Implications for Subthrust Exploration in the Upper Magdalena Valley
G. J. Rait, I. Dawes, T. D. J. England, G. W. Paukert
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... by applying interval velocities from nearby wells and by critically examining two- and three-dimensional depth-converted models for artefacts caused...
2003
Seismic Foldout: Exploration of the Papuan Plateau: How revolutionary geophysical technology reveals new seismic insights
Lauren Found, Neil Hodgson, Karyna Rodriguez, Helen Debenham, Searcher
GEO ExPro Magazine
... to sit in Figure 3: Migration interval velocities overlain on the 2023 Nanamarope 3D survey, highlighting the complex FWI and Q tomography velocity...
2024
Development of Marginal Fields in E South Area, Offshore Northwest Java, Indonesia
Ronnie Purantoro, Wayne Suyenaga, Medria K. Dewi, Danang R. Saleh, Frans J. Silitonga
Indonesian Petroleum Association
...-sided slopes. Structural mapping beneath the buildups was done by first calculating a time correction for the buildup with interval velocities derived...
1998
Serang Field – Discovery Within a Seismic "Fault Shadow"
Tom Clark, Mike Turk, Joewono Hadiwijoto, Yoseph Partono
Indonesian Petroleum Association
... recovery. The main reservoir interval is Upper-Miocene, stacked, coalesced, fluvial-deltaic channel sands. The sand/shale ratio is approximately 60/40...
2000
PS reflection-based full-waveform inversion using single-mode propagator
Yongbo Zhai, James Xu, James Rickett, Peng Wang, Xin Cheng, Denes Vigh, Suyang Chen, Cara Smith
International Meeting for Applied Geoscience and Energy (IMAGE)
... velocities, recent research has delved into elastic modeling to account for S-wave effects (Pratt et al., 1998, Cheng et al., 2016, Dutta et al., 2023...
2024
Overpressured Reservoirs: A New Generation of Exploration Opportunities
Richard E. Swarbrick
Indonesian Petroleum Association
... interval velocities as a proxy for porosity, and to infer overpressure where the "shale" interval velocities are slower than expected relative...
2004
Vertical Orientation of Shells on Some Florida Oyster Reefs
Robert S. Grinnell, Jr.
Journal of Sedimentary Research (SEPM)
... current velocities over the reef shoals normally range between 10 and 40 cm/sec at midtide. Maximum rates of over 65 cm/sec have been recorded in some...
1974
A Fresh Look for Natural Fracture Characterization Using Advance Borehole Acoustics Techniques, #40915 (2012)
Willem Veltman, Edgar Velez, Violeta Lujan
Search and Discovery.com
...). Anisotropy and Sonic Waveform Dispersion Analysis Shear waves propagate through rocks with different velocities in different directions. This phenomenon...
2012
The Fabric, or Internal Structure, of Rocks The Patterns of Anisotropy; #42188 (2018)
Heloise B. Lynn
Search and Discovery.com
... to the increased stress will increase the P-wave velocity. Interval velocities (VINT) average large volumes of rock, bounded by reflectors, and tend to change...
2018
Analysis of Sonic Well Logs Applied to Erosion Estimates in the Bighorn Basin, Wyoming
Henry P. Heasler , Natalya A. Kharitonova
AAPG Bulletin
.... (May) An improved exponential model of sonic transit time data as a function of depth takes into account the physical range of rock sonic velocities...
1996
Leaves in turbidite sands: The main source of oil and gas in the deep-water Kutei Basin, Indonesia: Discussion
G. Shanmugam
AAPG Bulletin
... downcanyon currents reaching velocities of 200 cm s1 (78 in. s1) and oscillatory flows up to 400 cm s1 (157 in. s1). During Hugo, a minimum of 2 million...
2008
Geology of Norton Basin and Continental Shelf Beneath Northwestern Bering Sea, Alaska
Michael A. Fisher , William W. Patton, Jr. , Mark L. Holmes
AAPG Bulletin
... sources of velocity information exist: interval velocities computed from seismic reflection data, and refraction velocities measured from sonobuoys...
1982
Mapping Stratigraphic Traps with Seislog
Roy O. Lindseth
Indonesian Petroleum Association
... velocities (and the effects of density) of the same sedimentary section. The sonic log and the related set of reflection coefficients, ignoring density...
1977
Métodos de Conversión Tiempo-Profundidad: Analisis y Discusión de Resultados en un Modelo Estructuralmente Complejo [PAPER IN SPANISH] Methods of Time-Depth Conversion: Analysis and Discussion of Results in a Complex Structural Models
Juan Carlos Vega D., Andres Mora
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... is imbricated, with some inverted blocks. The faults are thrust and sub-thrust, which are affecting the velocities too. This produces an effect over...
2009
Geological Impact of Sediment Transporting Events on the Washington Continental Shelf
Nancy B. Kachel, J. Dungan Smith
CSPG Special Publications
...; and 3. bed armouring resulting from more rapid removal of particles with low settling velocities from the bed. This paper describes results of the model...
1986
Exploring Sub-Basement Traps in the Upper Magdalena Valley of Colombia
C.E. Macellari, J. Amaral, J.F. Salel, M. Osorio
Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)
... was in the order of 9%. A cored interval indicates average porosities of 9% but in some cases reaching values of 15%, and permeabilities ranging from 10 to 200 mD...
2003
Constrained tomography for improved presalt elastic full-waveform inversion
Yaofeng He, Xu Li, Young Ho Cha, Partha Routh, Inma Dura-Gomez, Carey Marcinkovich
International Meeting for Applied Geoscience and Energy (IMAGE)
... in tomographic updates to subsalt velocities, and demonstrate its benefits to AFWI/EFWI results. Method Conventional ray-based tomography is used to update...
2022
Passive Margins: Eroded Carbonate Platform Margin--The Blake Escarpment off Southeastern United States
William P. Dillon, Anne M. Trehu, Page C. Valentine, and Mahlon M. Ball
AAPG Special Volumes
... sections become progressively smaller beneath the sea floor as velocities increase.) A series of dives to observe and sample the escarpment were made...
1987
Ekofisk: First of the Giant Oil Fields in Western Europe: DISCUSSION
L. W. Minturn
AAPG Bulletin
...------------------------------ the red section to the nearest 10 msec. These figures were used to calculate the interval velocities, which vary more than I would...
1982
Abstract: Reverse Time Migration of Prestack Elastic Data; #90224 (2015)
R. Ferner and M. D. Sacchi
Search and Discovery.com
... ) as horizontal and vertical particle velocities, (Txx , Tzz , Txz ) as the horizontal, vertical and shear stresses, (λ , µ) as the Lamé parameters and ρ as density...
2015
Multiphysics Characterization of an Albian Post-Salt Carbonate Reservoir, Brazil, #51242 (2016).
Michael B. Clennell, Tobias Mueller, Valeriya Shulakova, Jie Liu, Lionel Esteban, Joel Sarout, Maxim Lebedev, Boris Gurevich, Vassili Mikhaltsevitch, Sofia Correia-Lopes, Qiaomu Qi, Sherry Mayo, Iko Burgar, Gerald Pereira, Flavia Falcao, Marcos Grochau, Matthew Josh, Reem Freij-Ayoub, Marina Pervukhina, Shakil Ahmed, Claudio Delle Piane, Leigh Kiewiet, Bruce Maney, Jeremie Dautriat, Antoine Dillinger
Search and Discovery.com
... velocities reduced substantially in the presence of brine to values much below that predicted by Gassmann substitution. In 4 of the low frequency...
2016
Marine Dispersal of Fluvial Sediments as Fluid Muds: Old Concept, New Significance
Kristina A. Rotondo and Samuel J. Bentley Sr.
Special Publications of SEPM
... interval (Wiberg et al., 1996). Near-bottom wave-orbital velocities at mid-shelf depths (50-70 m) exceed ~50 cm s-1 for several weeks each year (Ogston et...
2004