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The AAPG/Datapages Combined Publications Database
Showing 44,912 Results. Searched 200,357 documents.
Abstracts: Plane Wave Reflection and Transmission Coefficients for VTI Media; #90173 (2015)
Ritesh Kumar Sharma and Robert James Ferguson
Search and Discovery.com
... wavefield and is unit normal vector to interface (see Sharma, 2009 for analytic expressions). Plane wave R and T coefficients for P-SV waves...
2015
Quartz Grain Orientations--1 (The Photometric Method)
R. F. Sippel
Journal of Sedimentary Research (SEPM)
... by assuming unit intensity (Ax= 1) and an initial phase x=0. Then the Jones vector assumes the simple form |1| = A |0| There is no loss of generality...
1971
Depositional Environment of the Sharon Conglomerate Member of the Pottsville Formation in Northeastern Ohio
John V. Mrakovich, Alan H. Coogan
Journal of Sedimentary Research (SEPM)
... by a vector summation (Curray, 1956, p. 118-120) of the individual cross-bedding dip azimuths. FOOTNOTE 2. Bechtel Associates Professional Corporation...
1974
Horizontal Well Drilling in the Arun Field
Fahmi Urip
Indonesian Petroleum Association
...-radius horizontal drilling, Oil and Gas Journal. Denny Kerr, 1991. Designing tangent sections for medium-radius horizontal wells, World Oil. Denny Kerr...
1992
Data-embedded physics-informed neural network for electromagnetic wave propagation simulation: Potentials and challenges
Yawei Su, Wenyi Hu, Jiefu Chen, Aria Abubakar
International Meeting for Applied Geoscience and Energy (IMAGE)
... data-driven network, and (b) the data-embedded PINN based on the homogeneous open space model. The unit for the spatial axis is one meter. lack of phy...
2024
Some Considerations in the Valuation of Gas Wells
John D. Wright
Wyoming Geological Association
... the hyperbolic equation: where: Di = initial nominal decline rate (t=0), 1/time Dei = initial effective decline rate from tangent line, 1/time; Dei=1-1n...
2001
The Dipmeter
John H. Doveton
Special Publications of SEPM
... processing are most frequently presented as a vector plot which is more commonly known as a "tadpole plot" (see Figure 8). The vertical axis records depth...
1994
Elastic Wavefield Seismic Stratigraphy, by Bob A. Hardage and I.J. Aluka, #40184 (2006).
Search and Discovery.com
2006
FischerLab: An Interactive Program for Generating Dynamic Fischer Plots From Wireline Logs and Stratigraphic Data, #70260 (2017).
Adewale Amosu, Yuefeng Sun
Search and Discovery.com
... of the mean subsidence vector. We demonstrate the usage of FischerLab on data derived from interpreted carbonate successions as well as from wireline log data...
2017
Depositional Environments of the Nugget Sandstone, Red Canyon Rim, Fremont County, Wyoming
Nancy M. Doelger, James R. Steidtmann
Earth Science Bulletin (WGA)
... between the vector mean azimuth of the cross-bedding dips in the cross-stratified unit and the shoreline trend indicated by the strike of the ripple crests...
1982
Ganurgarh Shale of Southeastern Rajasthan, India: A Precambrian Regressive Sequence of Lagoon-Tidal Flat Origin
Khurshed Akhtar, V. K. Srivastava
Journal of Sedimentary Research (SEPM)
..., a lower, grey-blue unit A containing small-scale lenses of silty sandstones is distinguishable from an upper, red-coloured unit B which lacks lenses...
1976
How to Improve the Definition of Seismic Reflection Data
D. Michon, R. Garotta
Indonesian Petroleum Association
... of tangent to the reflection, is infinite. This velocity decreases when the offset increases. It reaches 4 km/sec at one kilometer offset. That means...
1979
Machine Learning Identification of TOC–Rich Zones in the Eagle Ford Shale
Adewale Amosu, Mohamed Imsalem, Yuefeng Sun
GCAGS Transactions
... Salle County, South Texas, we generated a layer unit database and label the layer units using core measured TOC values. We applied a data-driven binary...
2020
Paleogeographic Significance of Oriented Calcareous Concretions in the Triassic Katberg Formation, South Africa
M. R. Johnson
Journal of Sedimentary Research (SEPM)
... implications of their preferred ori ntation. The Early Triassic Katberg Formation is a laterally extensive sandstone-rich unit in the Beaufort Group...
1989
Inorganic Calcite Morphology: Roles of Fluid Chemistry and Fluid Flow: REPLY
Luis A. Gonzalez
Journal of Sedimentary Research (SEPM)
... the term growth vector and that the reply was cast in terms of crystal and face growth rates and growth direction of individual faces. Gonzalez et al...
1993
Role of Temperature and Time on Organic Metamorphism: GEOLOGIC NOTES
P. E. Gretener , C. D. Curtis
AAPG Bulletin
.... 65, p. 2521-2533. Fischer, A. G., 1969, Geological time-distance rates; the Bubnoff unit: Geol. Soc. America Bull., v. 80, p. 549-552. Gretener, P...
1982
Paleocurrents and Reservoir Orientation of Middle Miocene Channel Deposits in Mutiara Field, Kutei Basin, East Kalimantan
Tobias H.D. Payenberg, F. Hasan Sidi, Simon C. Lang
Special Publications of SEPM
... a stratigraphic unit as an indication for Eight single-story channels were identified in outcrops and in lateral and vertical changes in fluvial...
2003
Sedimentation and Tectonic Modification of Samoan Archipelagic Apron
Peter Lonsdale
AAPG Bulletin
... floor for one month. On progressive vector plot, numbered arrows show apparent direction and distance of flow at end of each day: note semidiurnal...
1975
Drilling and Completion Anomaly Detection in Daily Reports by Deep Learning and Natural Language Processing Techniques
Hongbao Zhang, Yijin Zeng, Hongzhi Bao, Lulu Liao, Jian Song, Zaifu Huang, Xinjin Chen, Zhifa Wang, Yang Xu, Xin Jin
Unconventional Resources Technology Conference (URTEC)
... forest, support vector machine, long short-term memory (LSTM) and convolutional neural network (CNN), etc. and CNN was proved to be the best text...
2020
“Window” Outcrop Analogs for Greater Natural Buttes Field, Uinta Basin, Utah
Howard White, Rex Cole, Steve Stancel, Carrie Lee, Logan Macmillan
Rocky Mountain Association of Geologists
... Window (vector mean = 48°). Figure 14 provides a summary of the data by stratigraphic unit, which helps constrain the vector-mean values more rigorously...
2008
Paleomagnetism of mafic dikes from the Avalon Peninsula, eastern Newfoundland
M. K. Seguin, E. Gahé, M. S. Khalfi
Atlantic Geology
... sampling sites (HA and HB) in eastern Newfoundland. Unit 1 = H a r b o u r Main Group, Unit 2 = Conception Group, TT i i. O _ n r t / l ' f m o w f...
1982
“Window” Outcrop Analogs for Greater Natural Buttes Field, Uinta Basin, Utah
Howard White, Rex Cole, Steve Stancel, Carrie Lee, Logan MacMillan
Utah Geological Association
... of the data by stratigraphic unit, which helps constrain the vector-mean values more rigorously. For the 38 Farrer measurements, the mean is 72...
2008
Principles of Carbonate Sedimentation: Chapter 1
Wolfgang Schlager
AAPG Special Volumes
... to this exponential decay via a hyperbolic tangent function (Figures 1-1, 1-2). This implies that there is a shallow zone of light saturation, usually...
1992
Slope Mapping
W. E. Dole, N. F. Jordan
AAPG Bulletin
... units per unit of horizontal distance, for example, gammas per mile. Figures 3 and 4 show an original magnetic map and the slope map derived from...
1978
Placement Matters: Improving Survey Accuracy by Using Continuous Directional Data and Drilling Parameter Settings; #41856 (2016)
Ed Stockhausen, Richard Ball, Pete Clark, Richard Mongan, Philip Rice
Search and Discovery.com
... at the surface, generally resulting in a straighter section being achieved in the wellbore. This is often referred to as a tangent section. 2150...
2016