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The AAPG/Datapages Combined Publications Database
Showing 45,705 Results. Searched 201,049 documents.
Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method
Tianfei Zhu
Search and Discovery.com
..., and for the far field, its second-order approximation takes the form (W ) 2 ª 3 § P · 1 2 P P x E º , V 2 Z 2 « ¨ ¸ » ¨ ¸ PE ¼ ¬4 © p...
Unknown
Phase-Ray Maslov Summation: A Complete Finite-Frequency Ray Method
Tianfei Zhu
Search and Discovery.com
..., and for the far field, its second-order approximation takes the form (W ) 2 ª 3 § P · 1 2 P P x E º , V 2 Z 2 « ¨ ¸ » ¨ ¸ PE ¼ ¬4 © p...
Unknown
AAPG Archie Series, No. 1, Chapter 11: High-resolution Techniques
Q. R. Passey, K. E. Dahlberg, K. B. Sullivan, H. Yin, R. A. Brackett, Y. H. Xiao, and A. G. Guzmán-Garcia
AAPG Special Volumes
..., porosity, and resistivity logs. The second component is resistivity log modeling using detailed forward models for resistivity tools to account...
2006
Cretaceous Shoreline Across the South
William F. Tanner
Oklahoma City Geological Society
...-order to a second-order approximation. The re-entrant in the vicinity of the Arkansas-Tennessee-Mississippi corner is the most uncertain part of the map...
1967
Seismic Stratigraphy of Miocene and Pliocene Age Outer Shelf and Slope Sedimentation in the Makassar PSC, Offshore Kutei Basin
Steven J. Malecek, Christopher M. Reaves, Wirjawan Soeria Atmadja, Komang O. Widiantara
Indonesian Petroleum Association
... for sequence boundaries. These were designated S1, S2, S3 etc. from oldest to youngest. The second type of surface was somewhat more continuous...
1993
Seismic Velocity Variations in San Joaquin Valley, California
Walter S. Olson
AAPG Bulletin
... age at corresponding depths, yet the depths for the two-second reflection time are respectively 6,921 feet and 9,415 feet. Variation of velocities...
1941
Storm- and Tide-Dominated Shorelines in Cretaceous Moosebar-Lower Gates Interval--Outcrop Equivalents of Deep Basin Gas Trap in Western Canada
Dale A. Leckie, Roger G. Walker
AAPG Bulletin
.... Exact direction of dip of low-angle surfaces is not known--arrows (lower right) are only approximation. Flow directions toward 337, 343, and 345...
1982
Way to Increase Reliability of Calculation of Oil and Gas Reserves
R. M. Kerimov
Petroleum Geology: A Digest of Russian Literature
... of horizon III of the Productive Unit of one of the fields of the Lower Kura depression on date of first (A) and second (B) calculation of reserves...
1979
Some Applications and Problems of the Seismic Refraction Technique in Civil Engineering Projects in Malaysia
B. K. Lim, S. J. Jones
Geological Society of Malaysia (GSM)
... of the geophone—source distance, the velocity and dip of each overlying layer. The velocity of a given layer is a function of its dynamic elastic...
1982
Cecelia Field: ST. MARTIN PARISH, LOUISIANA
Lee Mills
Lafayette Geological Society
... the Cecelia Field. A second reservoir, the Marginulina texana sand, was found productive in the third well drilled. This well, the Broussard-Bergeron No. 1...
1970
ABSTRACT: Evaluating Textural Changes and Bedding Characteristics Within Clastic Environments Using Electrical Borehole Images; #90048 (2005)
S. M. Hansen, B. M. Newberry
Search and Discovery.com
... more resistive or conductive. The resistivities of these three fractions can then all be calculated. The second method, SandCount, is divided...
2005
Dynamic Phenomena of Sediment Compaction in Matagorda County, Texas
Robert L. Myers , Dewitt C. Van Siclen
GCAGS Transactions
... by compaction where low permeability of shale (clay) impedes the escape of water. A second dynamic effect of sediment compaction was described by Bert C. Timm...
1964
Paleocurrent Analysis of Large-Scale Cross-stratification in the Brampton Esker, Ontario
Houston C. Saunderson
Journal of Sedimentary Research (SEPM)
... of paleocurrent observations derived from large-scale cross-bedded sets of sand and gravel in the Brampton esker. The study is the second part of an investigation...
1976
Interpreting Sedimentary Growth Structures from Well Log and Seismic Data (With Examples)
Richard E. Bischke
AAPG Bulletin
..., and it can be seen from Figure 2 that our conclusions remain valid if the beds contain a uniform structural dip. The growth plots record the prevailing...
1994
Application of Production Decline Curve Analysis to Clastic Reservoir Facies Characterization within a Sequence Stratigraphic Framework: ExampleFrio Formation, South Texas
John D. Pigott, Bryant W. Bradley
GCAGS Journal
... drainage areas (290 ac). A close second in drainage area (251 ac) is the barrier island sand with lower average flow permeability (7 md). The fluvial sand...
2014
Measures for Describing the Size Distribution of Sediments
Douglas L. Inman
Journal of Sedimentary Research (SEPM)
... size-frequency curve of a sediment. They include the mean (or median) diameter, standard deviation, kurtosis, and two measures of skewness, the second...
1952
A Technique for Detecting Grain Motion in Wind Tunnels and Flumes: METHOD PAPER
William G. Nickling, Miles Ecclestone
Journal of Sedimentary Research (SEPM)
... per second needed to trigger the manometer solenoid values a close approximation to the dynamic threshold can he made. This requires some feeling...
1980
Small-Scale Fracture Density in Asmari Formation of Southwest Iran and its Relation to Bed Thickness and Structural Setting
H. McQuillan
AAPG Bulletin
... these two belts is marked not only by a surface lithologic change, but also by a topographic change from the highly resistant dip slopes and whale...
1973
Sedimentation of an Arkansas River Sand Bar in Oklahoma: A Cautionary Note on Dipmeter Interpretation
Richard Steinmetz
Oklahoma City Geological Society
... dip direction should coincide. A second assumption made is that high resolution dipmeters can detect internal sedimentary structural dips. These two...
1973
Chasing Channel Sands in South East Asia
P. M. Lloyd, R. Koch, D. DesAutels, Amiruddin M. Zain, R. Davis
Geological Society of Malaysia (GSM)
... with coarser sediment with steeper dips in the lower section. The decrease in dip as one moves up the section reflects the channel fill. From the change...
1999
Orientation of Cores by Bit Marks: GEOLOGICAL NOTES
K. W. Barr , H. S. Conder , G. S. Carter
AAPG Bulletin
.... The dip direction can then be calculated by measuring the difference between the dip azimuth and the azimuth of eccentricity, Fig. 1. End_Page 164...
1952
Effect on SAGD Performance of Horizontal Well Orientation with Respect to Inclined Shale Layers and Point Bars; #41334 (2014)
Amir Zamani and Ron Zakariasen
Search and Discovery.com
...-orthogonal grid systems and a deterministic object base approach. Simulation results of the model show that horizontal wells across the dip of point bar...
2014
Velocity model building with a time shift objective function: Gulf of Mexico examples
Yi Yang, Ken Matson, Tadas Krupovnickas, Mark Huiskes, Rene-Edouard Plessix, Sijmen Gerritsen
International Meeting for Applied Geoscience and Energy (IMAGE)
... subsurface velocities. This requirement is often very difficult to meet given the uncertainties of the salt geometry in initial models. The second...
2022
Quantitative analysis of DAS recorded P-wave generated by perforation shots
Peiyao Li, Ge Jin
International Meeting for Applied Geoscience and Energy (IMAGE)
... both directions. From Figure 1, we notice that the P-wave’s waveform distorts as it travels, Second International Meeting for Applied Geoscience...
2022
TST3D: Automated Structural Interpretation in Horizontal Wellbores
Tuanfeng Zhang, David McCormick, Allan Nandlal, Marie LeFranc
Unconventional Resources Technology Conference (URTEC)
... for the second optimal dig angle (Figure 5, right). The resulting optimal dip angle is 1.4° and the accepted matching THL reaches to 3,849 ft (MD=4,813 ft...
2018