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The AAPG/Datapages Combined Publications Database
Showing 1,682 Results. Searched 200,619 documents.
Abstract: Harmonic Decomposition of a Vibroseis Sweep Using Gabor Analysis; #90174 (2014)
Christopher B. Harrison, Gary Margrave, Michael Lamoureux, Art Siewert, and Andrew Barrett
Search and Discovery.com
... design. The decomposition is accomplished through the use of the Gabor transform and least squares to produce broad band estimates of the fundamental...
2014
MINERALIZATION THROUGHOUT THE HILLABEE
Stephen H. Stow, James F. Tull
Alabama Geological Society
... -65. Petrology, v. 12, p. 1-65. Wright, T.L, and Doherty, P.C., 1970, A linear programming and least squares computer method for solving petroWright...
1979
Paleomagnetic and Tectonic Interpretation of the Parkhurst Ridge Limestone, Coastal Belt Franciscan, Northern California
W. P. Harbert, R. J. McLaughlin, W. V. Sliter
Pacific Section SEPM
... was subjected to least-squares (principal component) analysis as presented in Kirschvink (1980). Principal component analysis of trivariate data yields...
1984
Kerogen Maturity and Type by Reflected Light Microscopy Applied to Petroleum Exploration
Wallace G. Dow, Dolores I. O'Connor
Special Publications of SEPM
... Ro value, even if one is available. The best primary vitrinite populations, however, should fall closest to the least-squares fit line and form...
1982
Experiences in Underbalanced Drilling and Testing Low Gravity Oil from a High Productivity Reservoir in Seram Island, Maluku Province, Indonesia
I. P. Moyle, Stephen Dyer, D. G. S. Lamb, W. G. Mogg
Indonesian Petroleum Association
... unequal phase shifts or various tide components which can be analysed using fourier techniques Data fitting using multi-linear least squares...
2000
Recommendations From Error Analysis of Single Well Microseismic Data With Full-Wavefield Moment Tensor Inversion: A Case Study
Juan M. Lorenzo, Trudy L. Watkins, Arash Dahi Taleghani
Unconventional Resources Technology Conference (URTEC)
...cement data (u) from seismic receivers and information (i.e. seismic velocities) about the Earth model (G). The inversion problem is a lea...
2017
Discharge-Sediment Dynamics of the Lower Mississippi River
Joann Mossa
GCAGS Transactions
... coefficients did not change with the application of a quadratic power function. DISCUSSION Correlation coefficients for the linear least-squares...
1988
Stratigraphic Velocity Interpretation: National Petroleum Reserve--Alaska: Chapter 12
E. W. Peikert
AAPG Special Volumes
... and which must be grouped for purposes of final interpretation. Figure 8 shows the data for the 105 to 112 m.y. interval. Linear least-squares curves have...
1985
Sampling Surficial Fluvial Gravels: The Precision of Size Distribution Percentile Estimates
Stephen Rice , Michael Church
Journal of Sedimentary Research (SEPM)
... upon n, and the 1/n dependency is modified such that sp' = ap'·s·nb' (7) where ap' and b' can be determined by least-squares regression. Figure 1 shows...
1996
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
... (1987) used a weighted-least squares procedure to derive a Euler pole directly from the 290-240 Ma segments of the APW paths. The best-fitting rotation...
1989
Mineral-chemistry quantification and petrophysical calibration for multimineral evaluations: A nonlinear approach
Douglas K. McCarty, Paul N. Theologou, Timothy B. Fischer, Arkadiusz Derkowski, M. Rebecca Stokes, and Ann Ollila
AAPG Bulletin
... distribution of trace elements can be performed using the non-negative least squares method. Here the measurement response coefficients for the trace...
2015
Graphical Techniques for the Analysis and Display of Logging Information: Chapter 2
John H. Doveton
AAPG Special Volumes
... interpretation in hard rock formations: Geobyte, v. 2, no. 3, p. 44-47. Etnyre, L. M., 1984a, Practical application of weighted least squares method...
1994
An Integrated Geophysical Analysis of Shallow Faulting in the Wasatch Fault Zone Near Springville, Utah County, Utah
Alvin K. Benson, Nathan Brett Mustoe
Utah Geological Association
... fitting. Polynomials of low order (1-5) were fit to the reduced data using a least-squares approach. The variance for each polynomial was then calculated...
1995
Bulk Density--Water Content Relationship in Marine Silts and Clays
Adrian F. Richards, Terrence J. Hirst, James M. Parks
Journal of Sedimentary Research (SEPM)
... (Eq. 3) for all the data shown in Figure 1. The regression equation for the computer-drawn linear least-squares line fitted to these data is: e...
1974
Rb-sr Whole-rock Geochronology and Clay Mineralogy of the Madera Formation Near Albuquerque, New Mexico
B. Mukhopadhyay , D. G. Brookins
Journal of Sedimentary Research (SEPM)
.... EUGSTER, 1955, Synthetic and natural muscovite: Geochim. Cosmochim. Acta, v. 8, p. 225-280. YORK, D., 1966, Least squares fitting of a straight line: Can...
1976
Abstract: Improving Reservoir Imaging with Time-Lag Fwi in the Partitioned Zone Between Kuwait and Saudi Arabia; #91204 (2023)
Art Petrenko, Trevor Coulman, Guangfu Shao, Ibrahim Hakam, Mohammed Almutairi, Sujoy Ghose, Kai Zhang
Search and Discovery.com
... in the current study is the choice of cost-function. A conventional FWI cost-function is based on the least-squares difference between observed...
2023
An Economic Analysis of the Oil and Gas Resources in the Clinton Formation of Ohio
J. T. CumberlidgeW. D. McCullough
Ohio Geological Society
... curve using least squares regression. In those areas where less than ten years of production data were available...
1985
Identification of Bypassed Oil Using Gamma-Ray Spectrometry Tool in Old Wells
A. K. Yasmin Mohamad, G. L. Snijder
Southeast Asia Petroleum Exploration Society (SEAPEX)
... computer by determining a least squares fit of the standards to the measured spectrum. The GST will measure in the inelastic mode the yields of C, Ca...
1986
A shallow velocity model building using full-waveform inversion on 3D onshore dataset
Young Seo Kim, Jewoo Yoo, Tong Fei, Ali Almomin
International Meeting for Applied Geoscience and Energy (IMAGE)
...2022 Society of Exploration Geophysicists and the American Association of Petroleum Geologists References Chi, B., K. Gao, and L. Huang, 2017, L...
2022
Understanding the Uncertainty of Gas Saturation Estimates: An Example from a Single Subbituminous Coal Seam
Tennille Mares, Tim Moore, Catherine Moore
Petroleum Exploration Society of Australia (PESA)
... Geology, 77(3-4): 320-327. MIKHAIL E.M. and ACKERMAN F., 1976. Observations and least squares. IEP, A. Dun-Donnelly Publisher, New York. 497 pp. MOORE...
2012
Wave Climate Effects Upon Changing Barrier Island Morphology, Kouchibouguac Bay, New Brunswick
Edward Bryant
Atlantic Geology
... for this purpose. In the Dobson program, a second degree polynomial is fitted to regularly gridded bathymetry using a least squares algorithm. Calculations...
1978
Two Rb-Sr Whole Rock Isochrons from Plutons in the Cobequid Highlands, Nova Scotia, Canada
H. V. Donohoe, A. N. Halliday, J. Duncan Keppie
Atlantic Geology
...: Geological Survey of Canada Paper 73-2, 139 p . YORK, D. 1969. Least squares fitting of a straight l e in with correlated errors. Earth and Planetary...
1986
The North American Datum of 1983 and Its Effect on the Petroleum Industry
James G. Morgan
Houston Geological Society Bulletin
... of the project, the final 1983 readjustment involved finding a least squares solution of a system of approximately 6,000,000 equations in 500,000...
1988
Elastic FWI application to a land data set in the Middle East
Anna Sedova, Olivier Leblanc, Thibaut Allemand, Gilles Lambar, Stphane Pellerin, Daniela Donno
International Meeting for Applied Geoscience and Energy (IMAGE)
... and elastic FWI from 2 to 12 Hz. An Optimal Transport FWI objective function (Messud et al., 2021) is used for the initial low frequencies, and a least...
2022
Unlocking subsurface complexity: Sparse ocean-bottom node and full-waveform inversion for northern Green Canyon, Gulf of Mexico
Kate Glaccum, Denes Vigh, Yao Yu, Eray Kocel, Bing Bai, Di Chen, Hongyan Li, Kevin Lyons
International Meeting for Applied Geoscience and Energy (IMAGE)
... in the migrated output. We can consider FWI as a type of non-linear least-squares process for this effect. Second International Meeting for Applied...
2022