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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,619 documents.
Abstracts: Magnetostratigraphy Dating and Correlation of the Lower Doig and Upper Montney Formations (Lower Triassic), Northeastern British Columbia, Western Canada; #90173 (2015)
Edwin I. Egbobawaye, Vadim A. Kravchinsky, John-Paul Zonneveld, and Murray K. Gingras
Search and Discovery.com
...: linkage to stage boundary definitions. Geological Society, London, Special Publications, 334, 61–102. Kirschvink, J.L., 1980. The least-squares line...
2015
Abstracts: Evaluation of a New 5D Seismic Volume Reconstruction Method: Tensor Completion versus Fourier Reconstruction; #90173 (2015)
Nadia Kreimer and Mauricio D. Sacchi
Search and Discovery.com
.... The operator indicates the 4D inverse Fourier transform. The cost function (3) is minimized using Iterative Reweighted Least-squares (IRLS) following...
2015
Abstracts: Weighing in on the Seismic Scale: The use of Seismic Fault Measurements for Constructing Discrete Fracture Networks in the Horn River Basin; #90173 (2015)
Carl A. Reine and Rory B. Dunphy
Search and Discovery.com
... of the fault lengths and azimuths. The lateral traces of the discontinuities are first modelled in a least-squares fashion as linear events. The points...
2015
Abstracts: Application of Shear-wave Splitting Analysis to Fracture Characterization for a Shaunavon Tight Oil Reservoir; #90173 (2015)
N. Chaminda Sandanayake and Richard A. Bale
Search and Discovery.com
... are almost identical. Theory and Method The analysis for shear-wave splitting has two key steps. First, a pre-stack least-squares analysis...
2015
Abstract: Seismic Imaging of Imbricate Structures in Mountainous Area: Case Studies; #90211 (2015)
Nanxun Dai, Oz Yilmaz, Weizhong Wang, and Jie Zhang
Search and Discovery.com
.... Then, we perturb the initial model parameters until the difference between the modeled and the observed (actual) traveltimes is minimum in the least...
2015
Abstract: Integrated Geophysical Characterization of the Near-Surface at Priddis, Alberta; #90224 (2015)
J. Helen Isaac, Lei Zhi, Don C. Lawton, and L. R. Bentley
Search and Discovery.com
... program, which runs a smoothness-constrained Gauss-Newton least-squares inversion (Sasaki, 1992; Loke, 2000; GeoTomo, 2013). Forward modelling utilized...
2015
A Southern North Sea Multi-Survey preSDM using Hybrid Gridded Tomography, #41592 (2015).
Ian Jones, Emma Evans, Darren Judd, Alan Campbell, Steve Elam
Search and Discovery.com
... and offsets is moved about the data. At each position, the slope along the CDP axis and residual curvature across the offset axis is computed (via least...
2015
Mapping Depth to Basement Using 2D Werner Inversion of High-Resolution AeroMagnetic (HRAM) Data, #41595 (2015).
Hassan H. Hassan, Robert A. Charters, John W. Peirce
Search and Discovery.com
... of igneous intrusions and faults. Werner inversion uses a least-squares approach to solve for the source-body parameters in a series of moving windows along...
2015
Violet Grove CO2 Injection Project: Monitoring with Timelapse VSP Surveys; #80440 (2015)
Marcia Couëslan, Don Lawton, Michael Jones
Search and Discovery.com
... as a starting point when the velocity model was inverted for anisotropy. A least squares vector wavefield separation technique and the anisotropic...
2015
Quantitative Characterization of Fracture Frequency Variations Using a Linear Piecewise Regression Analysis and the Akaike Information Criterion; #42147 (2017)
Alex P. O’Hara, Robert D. Jacobi
Search and Discovery.com
.... Jacovi, and H. David Sheets, 2017, Predicting the width and average fracture frequency of damage zones using a partial least squares statistical...
2017
Advances in OBN Technology: Full Azimuth, Long Offset Illumination for Complex Reservoirs, #70290 (2017).
John Smythe
Search and Discovery.com
..., orthorhombic) RTM (TTI, VTI, orthorhombic) Least squares RTM Full waveform inversion • Multi-dimensional interpolation • Azimuthal velocity...
2017
Paleomagnetic Data from Mustique, West Indies, suggest counterclockwise rotation in pre-Late Miocene rocks
Burmester, R.F. Beck, M.E. and Speed, R.C.
Geological Society of Trinidad & Tobago
... in sedimentary rocks, J Geophys. Res. 54,131-167. Kirschvink, J.L., 1980, The least-squares line and plane and the analysis of paleomagnetic data...
1995
A Geological Model Log Analysis Technique for Complex Lithologies
George L. Fisher, James P. Wallace
Indonesian Petroleum Association
.... Each model is expressed as a set of linear response equations and then is solved by either matrix inversion or least squares as appropriate...
1984
Use of extended source inversion for estimating the noise level in seismic data
Huiyi Chen, William W. Symes, Susan E. Minkoff
International Meeting for Applied Geoscience and Energy (IMAGE)
... term that is added to the FWI least squares misfit. Then the challenge of performing the optimization shifts to adjusting the penalty weight to balance...
2022
A practical implementation of data-space Hessian in the time-domain formulation of source extended full-waveform inversion
Gaoshan Guo, Stephane Operto, Ali Gholami, Hossein S. Aghamiry
International Meeting for Applied Geoscience and Energy (IMAGE)
... least-squares matching filter designed in the Fourier domain or in the short-time Fourier domain with a Gaussian window (Gabor, 1946). We first show...
2022
Water-Rock Interactions in Sedimentary Basins
Yousif K. Kharaka, Robert W. Hull, William W. Carothers
Special Publications of SEPM
...) and distribution of major cations and anions. The 6D and 6180 values for these waters with the least-squares line drawn through them are shown...
1985
Mesosoic and Cenozoic Thermal History of Sedimentary Rocks in the Bintuni Basin, Irian Jaya, Indonesia
Paul B. O'Sullivan, Kevin C. Hill, Ijep Saefudin, R. Daniel Kendrick
Indonesian Petroleum Association
... VR data set, which displays the obvious kink at ~2,000m, does not allow a "least-squares" estimate of the maximum paleogeothermal gradient. However...
1995
Resilience of the US Shale Production to the Collapse of Oil & Gas Prices
Philippe A. Charlez, Pierre Delfiner
Unconventional Resources Technology Conference (URTEC)
... is performed by calculating the best decline curve per well using a least squares algorithm. The method achieves an excellent match of production history...
2016
Seismic applications of the Radon transform and a new second-order traveltime local transform
Ehsan Soleymani, Mauricio Sacchi
International Meeting for Applied Geoscience and Energy (IMAGE)
... Radon transforms that exploits the Toeplitz structure of the Radon least-squares solution in the ω − x domain. The above contributions correspond...
2024
Shale Compaction in the Michigan Basin: Estimates of Former Depth of Burial and Implications for Paleogeothermal Gradients
Raymond Vugrinovich
CSPG Bulletin
... calculated by least squares linear regression of log (dt) and depth. Sonic transit time was determined by using the integrated transit time (ITT) curve...
1988
NMR Wettability Index Measurements on Unconventional Samples
Michael Dick, Dragan Veselinovic, Derrick Green, Aimee Scheffer-Villarreal, Ronald Bonnie, Shaina Kelly, Kathleen Bower
Unconventional Resources Technology Conference (URTEC)
... are then mixed to give a predicted T2 spectrum which is compared (via a least-squares fit) to a T2 spectrum recorded from a sample partially saturated...
2019
Stable-Isotopic Composition of a Late Eocene Archaeocete Whale, Basilosaurus cetoides, from Wayne County, Mississippi
Edwin W. Emmer, Dean A. Dunn
GCAGS Transactions
... a least-squares regression line relating oxygen isotope values of cetacean bone phosphate and sea water, based on 18O values of modern cetaceans...
1996
Paleocurrent Trend Analysis of a Delta in the Bjorne Formation (Lower Triassic) of Northwestern Melville Island, Arctic Archipelago
F. P. Agterberg, L. V. Hills, H. P. Trettin
Journal of Sedimentary Research (SEPM)
... degrees2). Trend analysis by the method of least squares is applied to locality aver ges for the combined features. The paleocurrent trends...
1967
Core-Calibrated Multi-Mineral Interpretation in Reservoirs with Complex Mineralogy
Mathilde Luycx, Brent Wheelock, Hanatu Kadir, Emmanuel O. Oyewole, Olabode Ijasan, Darren McLendon
Unconventional Resources Technology Conference (URTEC)
... 𝐻 ]‖ (6) 0≤ 𝑣≤ 1 𝐻𝜇 2 𝐻𝑟 𝑇 and is solved using the Bounded Variable Least Squares algorithm. By calculating 𝑣(𝜇) for each component 𝑖 of th...
2022
The Effects of Seismic Data Conditioning on Pre-Stack Simultaneous Impedance Inversion
Scott W. Singleton
GCAGS Transactions
... Taner, takes the “statics-based” approach (Taner, 2004). It minimizes a least-squares error in a reflector by determining a local statics shift...
2008