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The AAPG/Datapages Combined Publications Database
Showing 17,715 Results. Searched 200,616 documents.
Determination of Productive Zones in Low Porosity, Low Permeability Carbonate and Clastic Rocks
James A. Turney
Dallas Geological Society
..., and gas detection can be accomplished utilizing the acoustic velocity logging systems. The findings of actual field tests in this area illustrate...
1982
Common Reflection Surface (CRS) Stack: Limitations and Opportunities for High-Resolution Seismic Imaging; Real Data Cases
M. S. Jaya, E. A. Sentani, Yendri, Widjonarko, D. Santoso
Indonesian Petroleum Association
.... Although this automatic procedure helps to reduce man-made interpretation error (e.g. in the case of conventional velocity analysis of the CMP stack...
2007
Seismic Detection of Overpressuring and Fracturing: An Example from the Qaidam Basin, People’s Republic of China
Robert J. Paul
Southeast Asia Petroleum Exploration Society (SEAPEX)
... and small quantities of oil and gas was identified on the northwest plunging nose of the Nan Yi Shan anticline. Velocity dispersion effects were encountered...
1990
Impulse Acoustical Logging in a Cased Drill Hole
L. A. Sergeyev, A. A. Boyaroyts, V. V. Churlin, O. N. Sokolov
Petroleum Geology: A Digest of Russian Literature
.... (January) 1. Hicks, W. G. and Berry, I. E., 1956, Application of continuous velocity logs to determination of fluid saturation of reservoir rocks...
1963
Full-Waveform Inversion Application on 2D Slanted Streamer Data - A Case Study
Andreas Waluyo
Indonesian Petroleum Association
...* ABSTRACT One of the recent developments in prestack seismic imaging is the application of full-waveform inversion (FWI) to velocity model building...
2014
Machine Learning Prediction and the Impact of CO₂ Injection on S-Wave in 20 Years in the Legacy Well Field
Sharif Morshed, Shafiqul Alam Khan, Wu Hao
Unconventional Resources Technology Conference (URTEC)
... will significantly affect and change the velocity. The s-wave URTeC: 4044564 2 velocities will change more than the p-wave velocity since it is more...
2024
Permeability prediction in chalks
M. Monzurul Alam, Ida Lykke Fabricius, Manika Prasad
AAPG Bulletin
...Permeability prediction in chalks M. Monzurul Alam, Ida Lykke Fabricius, Manika Prasad 2011 1991 2014 95 11 The velocity of elastic waves...
2011
Petrophysical Relationship to Predict Synthetic Porosity Log; #41124 (2013)
Thariq Guntoro, Intan Putri, and Ayi Syaeful Bahri
Search and Discovery.com
... of hydrocarbon either gas or oil. By petrophysical relationship, the synthetic log can be estimated. Faust's equation was used to obtain P-wave velocity...
2013
Delineating Thin-Bed Tight Gas Sand Reservoir with Prestack Joint PP/PS Inversion, #41363 (2014)
Zhiwen Deng, Ming Qiang, Shuanghu Shi, Xiaofeng Liang, Yang Zhu, Yijun Zhou, Qingjia Tong
Search and Discovery.com
... in Dyas. The P-velocity or impedance of tight gas bearing sand decreases, which may be the same as that of shale surrounding rock. A prestack stochastic...
2014
Elastic FWI imaging of a complex presalt structure using NATS data
Arthur Henrique, Luiz Felão, Sergio Barragan, Florian Jouno
International Meeting for Applied Geoscience and Energy (IMAGE)
..., characteristic of this type of acquisition, pose challenges to velocity model building and imaging. The target lies below the diving wave penetration...
2023
Automated velocity modeling with domain transformations
Kevin Gullikson, Arnab Dhara, Ram Tuvi, Mrinal K. Sen
International Meeting for Applied Geoscience and Energy (IMAGE)
...Automated velocity modeling with domain transformations Kevin Gullikson, Arnab Dhara, Ram Tuvi, Mrinal K. Sen Automated velocity modeling with domain...
2024
Shape Entropy and Settling Velocity of Natural Grains
J.P. Le Roux
Journal of Sedimentary Research (SEPM)
...Shape Entropy and Settling Velocity of Natural Grains J.P. Le Roux 2002 363 366 Vol. 72 (2002) No. 3. (May) The shape of sedimentary particles has...
2002
Abstract: Rock Physics Models for the Seismic Velocity of Cracked Media; #90171 (2013)
Zimin Zhang and Robert R. Stewart
Search and Discovery.com
...Abstract: Rock Physics Models for the Seismic Velocity of Cracked Media; #90171 (2013) Zimin Zhang and Robert R. Stewart Rock Physics Models...
2013
Pitfalls in Seismic Interpretation
Paul M. Tucker, Howard J. Yorston
Pacific Section of AAPG
... into three groups: those caused by velocity, those due to the geometry of the reflector, and those resulting from recording and playback. Regional velocity...
1972
The Evolution of FWI and its Perceived Benefits
Tony Martin, Andrew Long
Australian Petroleum Production & Exploration Association (APPEA) Journal
... towed streamer data lacked the very long offsets and ultra-low frequencies necessary to derive stable velocity updates beyond shallow depths. FWI now...
2019
An Analysis of Factors Controlling Deviations in Hydraulic Equivalence in Some Modern Sands
Richard Lowright, E. G. Williams, Frank Dachille
Journal of Sedimentary Research (SEPM)
... equilibrium; as grain size increases, the heavy: light settling velocity ratio decreases, a condition which can be predicted from pickup equations...
1972
Bed Configurations in Steady Unidirectional Water Flows. Part 3. Effects of Temperature and Gravity
John B. Southard, Lawrence A. Boguchwal
Journal of Sedimentary Research (SEPM)
... in a unidirectional flow is analyzed in the context of the dimensionless depth-velocity-size diagram discussed in Part 2. Bed states that differ only...
1990
Two-dimensional seismic refraction tomography of a buried bedrock valley at Hallsands beach, Devon, United Kingdom
Eric B. Avalos, David H. Malone, Eric W. Peterson, William P. Anderson, and Roland W. Gehrels
Environmental Geosciences (DEG)
... to the beach and 7 normal to the beach, with either 12 or 24 geophones at 5-m (16-ft) spacing. Eight sediment cores were used to calibrate the velocity model...
2016
Granite and Limestone Velocity Determination in Arbuckle Mountains, Oklahoma
R. L. Harding
Tulsa Geological Society
...Granite and Limestone Velocity Determination in Arbuckle Mountains, Oklahoma R. L. Harding 1933 18 19 Vol. 2 (1933) A knowledge of the various...
1933
ABSTRACT: TUTORIAL: IMAGING THROUGH SHALLOW GAS, DIVING WAVE
Brian Broussard, Luis Canales, Charles Carvill, Lee Lu, Juan Perdomo, Chung-Chi Shih, Sherman Yang, Peter Melville, Mehmet Tanis
Geological Society of Trinidad & Tobago
..., and severe velocity variations on the seismic signal pose a difficult challenge for the geophysicist working the oil and gas fields surrounding...
2007
Nonlinear LS-RTM based on the seismic scale separation and full-wavefield multiparameter FWI
ystein Korsmo, Yang Yang, Nizar Chemingui, Andrey Pankov, Antonio Castiello
International Meeting for Applied Geoscience and Energy (IMAGE)
...-squares reverse time migration (LS-RTM) implemented in the framework of FWI. The new inversion estimates the earth reflectivity while updating the velocity...
2022
Cross-Well Seismology: A New Production Tool
B. N. P. Paulsson, R. T. Langan
Indonesian Petroleum Association
...-frequency, vibratory source which is non-destructive, and a 100-level receiver string of clamped, three-component geophones. Two-dimensional velocity...
1988
Australia: Depth Reprocessing Rejuvenates Gippsland Basin
Peter Baillie, Paul Carter, Jarrad Grahame, Joe Zhou, Nigel Mudge, CGG
GEO ExPro Magazine
... to extensive multiple generation and data contamination. The impact on data quality in this area is exacerbated by the presence of high-velocity...
2019
Subsalt Imaging Below the Mahogany Salt Sill
Davis W. Ratcliff and David J. Weber
Houston Geological Society Bulletin
... velocity information above salt and is considered an initial building block for subsequent 3-D PreSDM work and velocity model building. The 3-D prestack...
1995
Joint 4D full-waveform inversion using enhanced template-matching objective function
Gaurav Dutta, Emmanuel Saragoussi, Xin Cheng, Markos Sourial, Yongbo Zhai, Chirag Parekh, Denes Vigh
International Meeting for Applied Geoscience and Energy (IMAGE)
... for velocity model building in different regions of the world. In recent years, there has been considerable interest in using high-frequency velocity...
2023