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The AAPG/Datapages Combined Publications Database
Showing 28,568 Results. Searched 200,357 documents.
Reducing seismic quantitative interpretation uncertainty in complex geological environments: A case study from offshore Australia
Andrea Paxton, Lianping Zhang, Abdul Kholiq, Lee Davey, Richard Bisley, Dominic Fell, Leo Leon, James Shadlow
International Meeting for Applied Geoscience and Energy (IMAGE)
.... The method compensates for the geophysical challenge of variable illumination using PSFs to capture dip-, space-, depth- and angle-dependent wavelet...
2022
Role of Compaction in Listric Shape of Growth Normal Faults
Hong-Bin Xiao, John Suppe
AAPG Bulletin
... of element B; the fault flattens, and the angle of dip is now represented by ^Thgr. Note that the widths of elements A and B are identical, whereas...
1989
Effective flow properties of heterolithic, cross-bedded tidal sandstones: Part 2. Flow simulation
Benoît Y. G. Massart, Matthew D. Jackson, Gary J. Hampson, and Howard D. Johnson
AAPG Bulletin
... parameters has been determined: (1) mudstone fraction, (2) sandstone laminae thickness, (3) mudstone drape continuity, (4) toeset dip, (5) climb angle...
2016
Stratigraphic Architecture of the Shelf-to-Intrashelf Basin Transition along the Northern Margin of the Late Albian Maverick Intrashelf Basin, Lower Pecos River Canyon, Southwestern Texas
Jeffrey Sitgreaves, Charles Kerans
GCAGS Journal
... on the Lower Pecos River. This study takes a quantitative approach to characterize the relationships between dip angles, paleobathymetry, and sediment...
2021
Simplification of the John L. Rich Dip Construction: GEOLOGICAL NOTES
W. G. Woolnough
AAPG Bulletin
... angle of apparent dip, say, S. 15° E. at 21°, the corresponding length required in the construction, lay the straight edge from the center O...
1935
Seismic Expression of the Stratigraphic Succession: Chapter 12: Part I. Illinois Basin: Stratigraphy
Paul C. Heigold, Donald F. Oltz
AAPG Special Volumes
... N., R. 2 E., in Fayette County to Section 33, T. 8 N., R. 5 E., in Effingham County, Illinois (Figure 12-3). Dip reversals and an accompanying...
1990
Thickness and Depth of Strata: DISCUSSION
W. Armstrong Price
AAPG Bulletin
... = Horizontal sin ^Thgr·sin Dip ± Vertical cos Dip Depth = Horizontal sin ^Thgr·tan Dip ± Vertical (^Thgr = angle between traverse and strike) (Fig. 1, B...
1934
Some Dip Problems
D. Jerome Fisher
AAPG Bulletin
...) which may be written as EQUATION (2) or in several other ways (e.g., tan T = tan A sec H) where T = vertical angle of true dip A = vertical angle...
1937
Secondary migration of heavy oil in low dip basins
Mario Valderrama
AAPG Bulletin
... will decrease the column height proportionally to the sine of the dip angle of the carrier bed. For example, assume a two-dimensional model with a migrating oil...
2022
Research and application of diffraction imaging based on the full-azimuth angle migration
Shengtao Zang, Xingrong Xu, Zhe Yang, Yanxiang Wang, Jiaqing Sun
International Meeting for Applied Geoscience and Energy (IMAGE)
... the identification accuracy and imaging quality of the fault-karst. differences in dip-angle gathers, the shape difference can be used...
2024
Graphical Method for Calculating Dip and Strike from Continuous Dipmeters
B. Osborne Prescott
Tulsa Geological Society
... of the polar coordinate paper. . . . Step 7. To find uncorrected dip angle (49° on the calculation sheet) use the formula Tan a = V/H. Where: V is the vertical...
1955
Internal Structure and Surface Geometry of Longitudinal (Seif) Dunes
Haim Tsoar
Journal of Sedimentary Research (SEPM)
... and which generally have a dip of more than 30°. Hunter (1977) and Kocurek and Dott (1981) differentiated "sand (grain) flow cross-strata, grainfall...
1982
Fracture characterization from core and image log integration at Tengiz and Korolev fields, Kazakhstan
Ted Playton, Evan Earnest, Fermín Fernández-Ibáñez, Assem Bibolova, Dana Tolessin, Ilyas Tussupbayev, and Bagdat Toleubay
AAPG Bulletin
..., dip angle, and dip azimuth were assigned by the petrophysical software. Sinusoid dips in Tengiz and Korolev image logs can range from very shallow...
2025
Abstract: The Occurrence of Thrusts in North Kedah and Perlis
Zaiton Harun, Basir Jasin
Geological Society of Malaysia (GSM)
... thrust faults were observed at Bukit Jabi, Bukit Kerangan, Bukit Tunjang and Kampung Binjai. The fau lts are high angle thrusts and dip towards the east...
2000
Streamlining subsurface insights: Single extrapolation for holistic Green's function generation
Hongwei Liu
International Meeting for Applied Geoscience and Energy (IMAGE)
... in applications such as re-datuming, target-oriented imaging, traveltime calculation for PSDM, first arrival tomography, cross-well FWI, dip-angle gather...
2024
An Integrated Modeling Approach for Fault-Related Fractures in Tight Sandstone Reservoirs Based on Structural Control and Geomechanical Method; #42400 (2019)
Hui Li, Chengyan Lin, Lihua Ren, Chunmei Dong, Cunfei Ma, Shitao Li, Shuyi Liang
Search and Discovery.com
... Depression. A series of nearly EW or NEE-SWW trending normal faults are developed in the study area, most of faults have a high dip angle...
2019
Graphic Method for Some Geologic Calculations: GEOLOGICAL NOTES
Mason L. Hill
AAPG Bulletin
... addition or subtraction of this angle to or from the dip and read thickness directly (for example, with a traverse up a 10° slope in the direction...
1942
Stratigraphic Analysis of the Navajo Sandstone: DISCUSSION
James R. Steidtmann
Journal of Sedimentary Research (SEPM)
... to discredit the possibility of an eolian origin with the often cited idea that eolian cross-strata must dip at or near the angle of repose for dry sand...
1977
Abstract: Inference of 2D and 3D Locally Varying Anisotropy Fields; #90187 (2014)
Maksuda Lillah and Jeff Boisvert
Search and Discovery.com
... data are uniquely treated as they represent axial data, i.e. the angle is equivalent to 180°+angle; a specialized kriging program is provided to deal...
2014
3D Contrast Property Mapping to Enhance Subsurface Mapping Visualisation
Robert Van Eykenhof, Etienne Wildeboer Schut, Vincent Aubin
GEO ExPro Magazine
... in the down-dip structure as indicated by the black arrow. 50 geo expro may 2010 GeoExPro Vol. 7, No. 3, May 2010 Copyright © 2018 Geopublishing...
2010
Using high-resolution microresistivity image logs to reconstruct paleoenvironments and stratal architectures: An example from the McMurray Formation, Leismer area, northeastern Alberta, Canada
Howard Brekke and Tania Roenitz
AAPG Bulletin
... with dipping angles >30°. Cross-beds are sandy microforms wherein internal bedding within an individual cross-bedset has a consistent or organized dip angle...
2021
Sandbox Modeling of Thrust-Fold Belt in Cimanintin Area, Sumedang, West Java
Nicodemus Rimba Raya, Benyamin Sapiie
Indonesian Petroleum Association
... of shortening and fault dip. Table 1. Shortening vs. Fault Table 2. Shortening vs. Fold Geometry The result of the balancing cross section of the Cimanintin...
2003
Beyond Tadpoles, Beyond SCAT
Jim Morse, Dimitri Massaras
GEO ExPro Magazine
... properly on tadpole plots. While it is possible to fit a trend line to the dip angle of the tadpole heads, it is not possible to fit one...
2010
Geological Cross Sections: Part 6. Geological Methods
Jeremy M. Boak
AAPG Special Volumes
... be at any angle to subsequent structural trends. When the main source of data is well logs, it is traditional to lay out cross sections to connect wells...
1992
Fault Determination from Dipmeter Surveys
Robert Claret
Asociación Venezolana de Geología, Minería y Petróleo (AVGMP)
... angle and azimuth of the geological formations traversed by a drill hole. The dip information is calculated primarily from three parameters recorded...
1959