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The AAPG/Datapages Combined Publications Database
Showing 6,629 Results. Searched 200,673 documents.
Abstract: AVO Crossplotting II: Examining Vp/Vs Behavior; #90171 (2013)
Heath Pelletier
Search and Discovery.com
.... The central question of this paper is: when is this background trend (or fluid line) rotation a representation of real geology and when...
2013
Rock mechanics characterization using borehole images and far field acoustic measurements to optimize perforation in unconventional reservoir
Rajeev Kumar, Dai Guo Yu
International Meeting for Applied Geoscience and Energy (IMAGE)
... horizontal stress direction was found to be N45Edeg which is just at 90deg offset to regional geological setting. This has been confirmed with fast shear...
2022
Two New Methods of Paleocurrent Determination from Trough Cross-Stratification
Peter G. DeCelles, Richard P. Langford, Robert K. Schwartz
Journal of Sedimentary Research (SEPM)
... assignment of bedding dip as slightly greater or less than cross-stratification dip. If tectonic rotation about a single horizontal axis (for example...
1983
The Pannonian Basin: A Study in Basin Evolution: Discussion (1)
ZOLTAN BALLA
AAPG Bulletin
...-clockwise rotation of the Mecsek Mountains (southwest Hungary) in the Cretaceous: interpretation of palaeomagnetic data in the light of the geology...
1990
The Three Elements of Structural Geology, #41849 (2017).
Terry Engelder
Search and Discovery.com
... form: or Deformation is separated into three components: rigid-body translation, stretch and rigid-body rotation. Stretch = Rigid-body rotation...
2017
Significance of Coring-Induced Fractures in Mesaverde Core, Northwestern Colorado (1)
JOHN C. LORENZ, SHARON J. FINLEY, and NORMAN R. WARPINSKI
AAPG Bulletin
... reconstructions of the components of stress at the drill bit (horizontal tectonic stress, overburden stress, mud pressure, pore pressure, and bit...
1990
Abstract: Which Curvature is Right for You? Part - 1; #90174 (2014)
Satinder Chopra and Kurt J. Marfurt
Search and Discovery.com
... projects. In this study we describe the theory and application of Euler curvature, which is a generalization of the dip and strike components of curvature...
2014
A Probable Cave Breccia in Middle Cambrian Limestone, Southern Nevada: Petrography and Paleomagnetic Constraints on the Time of Formation
Stephen L. Gillett
Journal of Sedimentary Research (SEPM)
... to horizontal. The results of these rotations (Fig. 6c and d) indicate that the bedding inclination of both the intermediate and characteristic components...
1983
Fracture stratigraphy, stress, and strain evolution in shale succession of the lower Paleozoic Baltic Basin (Poland)
Marek Jarosiński, Kinga Bobek, Andrzej Głuszyński, Krzysztof Sowiżdżał, and Tomasz Słoczyński
AAPG Bulletin
... equations for total horizontal stresses consist of two parts: (1) the first two components of the sum (in square brackets) designate the horizontal...
2023
S1P and S2P separation and shear wave splitting correction for SVP data
Yuan Yuan Yue, Zhongping Qian, Hongmei Nie, Pengyuan Sun, Zhiwen Deng, Jianfeng Li
International Meeting for Applied Geoscience and Energy (IMAGE)
... components are rotated to R- and T-directions, and the 2C data after the rotation is written as SVP-R and SVP-T. The data in CCP gathers after NMO correction...
2022
Satellite Interferometry and the Detection of Active Deformation Associated with Faults in Suban Field, South Sumatra Basin, Indonesia
Richard A. Schultz, Xiaopeng Tong, Khalid A. Soofi, David T. Sandwell, Peter H. Hennings
Indonesian Petroleum Association
... further refine the horizontal (VNorth and VEast) components of the velocity field. Fourteen filtered interferograms along the ascending track and 6 along...
2014
Abstracts: Sonic Scanner Logging at Site C0009 of IODP Expedition 319, NanTroSEIZE; #90173 (2015)
Hisao Ito
Search and Discovery.com
..., the log data show rogouse condition of the borehole Sonic Scanner anisotropy Analysis The Alford Rotation technique (Alford, 1986) is employed...
2015
History of Tectonic Modeling and Implications for Depositional Architecture in the Gulf of Mexico: Where we should Go from Here
James Pindell
GCAGS Transactions
... Jurassic northwest-southeast crustal stretching astride Yucatán, followed by “Stage 2” Middle Jurassic–?earliest Cretaceous counter-clockwise rotation...
2010
Monitoring in a Western Canadian Shale Play With a Sparse Surface Network: Moment Tensor Analysis Implications
Kit Chambers, Bogdan Batlai, Brad Bialowas, John Nieto, Dario Baturan
Unconventional Resources Technology Conference (URTEC)
... that the sources are pure double-couple failures and that observed non-double couple components can be attributed to the influence of noise in the inversion...
2017
Continental Extension in Southern Britain and Surrounding Areas and Its Relationship to the Opening of the North Atlantic Ocean: Chapter 26: European-African Margins
R. Andrew Chadwick, Roy A. Livermore, Ian E. Penn
AAPG Special Volumes
... extension, probably related to rotation of Iberia and opening of the Bay of Biscay. Two plate-tectonic reconstructions for end-Carboniferous time...
1989
The Comparison of Using a Whipstock and a Dyna Drill in Directional Drilling
Bambang Widjanarko DS, R. W. Prajogo
Indonesian Petroleum Association
... is attained. Dyna drill is a positive displacement hydraulic motor used as a down hole drilling machine, consisting of five basic assembly components...
1976
Cenozoic Deformational Styles of the Laguna-Madre - Tuxpan Shelf and Mexican Ridges Fold Belt, Mexico
Tim Wawrzyniec, Khaled Fouad, Dan Schultz-Ela, William Ambrose, David Jennette, Shinichi Sakurai, Edgar Guevara, Mario Aranda, Juan Alvarado, Ulises Hernandez, Eduardo Macias, J. Roman, C. Rosas, K. Rosas, L. E. Salomon
GCAGS Transactions
... as upward increase in net horizontal extension. (b) Schematic diagram based on a natural example from the LMT shelf. The deepest horizon marked...
2003
Direct S-wave seismic data interpretation for channel sand reservoir at Sanhu area, West China
Rui Zhang, Zhiwen Deng, Yan Wang, Xiaoyu Xi, Xiusong Wang, Jie Wang
International Meeting for Applied Geoscience and Energy (IMAGE)
... and Transverse (RT) components (SrRr, SrRt, StRr, StRt) by using Alford rotation method (Alford 1986), as shown in equations (1) and (2). SR SR S R SR...
2023
Exploring Overpressured, Naturally Fractured Reservoirs, Powder River Basin, Wyoming: A Multi-disciplinary Effort
Steven L. Parks, Melinda S. Gale
Montana Geological Society
... in fracture intensity using muKicomponent shear-wave surface seismic as a precursor to horizontal drilling in the Austin Chalk: Geophys. J...
1996
Abstract: Numerical Modeling of Shear-wave Splitting and Azimuthal Velocity Analysis in Fractured Media; #90172 (2014)
Zimin Zhang, Don C. Lawton, Robert R. Stewart
Search and Discovery.com
..., including loading geometry information, horizontal rotation for x & y components, spherical divergence compensation, deconvolution, velocity analysis and NMO...
2014
Geometric Analysis of Seismic Fault Evidence: GEOLOGICAL NOTES
L. F. Ivanhoe
AAPG Bulletin
... that is perpendicular to the strike of the fault. A vertical section that is parallel with the strike of a fault will show the fault trace as a horizontal line...
1955
THE RECOGNITION OF BASINAL RHOMBOIDAL FAULT PATTERNS AS A BASIS FOR THE DEVELOPMENT OF A PLATE TECTONICS STRUCTURAL MODEL FOR THE WESTERN CANADA SEDIMENTARY BASIN
MAKS M. POSAVEC
Williston Basin Symposium
... and collision(?), and was combined with rotation of the PSP relative to the CSP. Subhorizontal detachment zones have developed within...
1991
Understanding Multiples to Upgrade Low-Relief Prospects
Sunu H. Praptono, Witan O. Ardjakusumah
Indonesian Petroleum Association
...Understanding Multiples to Upgrade Low-Relief Prospects Sunu H. Praptono, Witan O. Ardjakusumah 1996 367 375 In an area with thick horizontal shale...
1996
Improved Methods of Heavy Mineral Separation and Counting Suitable for Fine Grained Sandstones: NOTES
V. Ramesam
Journal of Sedimentary Research (SEPM)
...), A centrifuge tube for separation of heavy minerals in fine grained sands is designed so that the light and heavy components, even in small quantity, come out...
1966
Comparison of Boudins with Some Similar Tectonic Inclusions: GEOLOGICAL NOTES
W. M. Schwerdtner , P. N. Byers
AAPG Bulletin
...) whose principal directions can be oblique to the layering. Components of shear (stress couples) will occur along the layers, except where two principal...
1965