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The AAPG/Datapages Combined Publications Database
Showing 1,463 Results. Searched 196,121 documents.
Bayesian Variable Pressure Decline-Curve Analysis for Shale Gas Wells
Leopoldo M. Ruiz Maraggi, Mark P. Walsh, Larry W. Lake, Frank R. Male
Unconventional Resources Technology Conference (URTEC)
... transformation is not straightforward. Equation 4 is the least-squares regression of the cumulative production. ( ) = arg min − ; , () , The goal...
2023
Structural Significance and Analysis of Mid-Continent Gravity High
Richard L. Coons , George P. Woollard , Garland Hershey
AAPG Bulletin
.... Exploration Geophysicists Yearbook, p. 267. Simpson, S. M., Jr., 1954, Least squares, polynomial fitting to gravitational data and density plotting...
1967
New Method in X-Ray Quantitative Mineralogical Determination of Sedimentary Rocks: ABSTRACT
J. H. Fang, Levy Zevin
AAPG Bulletin
... be obtained easily through a least-squares analysis, Xms = Ks/I^primems, where I^prime = Ims/µs. The µs can be measured readily from the Compton...
1984
Geology and Geophysics of South-Central Zavala and Adjoining Parts of Dimmit Counties, Texas: ABSTRACT
James A. Noel
AAPG Bulletin
... County to the south. The Elaine field is included in the study area. Gravity and magnetic residuals were calculated using the least-squares method...
1984
-- no title --
user
Search and Discovery.com
..., BC, Canada [email protected] Abstract/Excerpt A non-linear singularity-preserving solution to the least-squares seismic imaging problem...
Unknown
-- no title --
user
Search and Discovery.com
..., BC, Canada [email protected] Abstract/Excerpt A non-linear singularity-preserving solution to the least-squares seismic imaging problem...
Unknown
Abstract: Antialiasing 5D Interpolation; #90187 (2014)
Stephen K. Chiu
Search and Discovery.com
... to constrain the least-squares inversion in MWNI, frequency by frequency, to overcome the aliasing artifacts. This new interpolation scheme expands...
2014
3D Inversion of Time-Domain Electromagnetic Data for Ground Water Aquifers, #41610 (2015).
Elliot M. Holtham, Mike McMillan, Eldad Haber
Search and Discovery.com
... regularization functional. To minimize the non-linear objection function ϕ (m) we use the non-linear least squares method and reduce the data misfit until we...
2015
Abstract: De-Convoluting Mixed Crude Oils in Prudhoe Bay Field Using Chemometrics; #90063 (2007)
Search and Discovery.com
2007
Obtaining Low Frequencies for Full Waveform Inversion by Using Augmented Physics
Eldad Haber, Eran Treister, Elliot Holtham
Petroleum Exploration Society of Australia (PESA)
... the problem of the lack of low frequencies by changing the misfit function from least squares to some other misfit. However, there is a fundamental...
2016
Abstract: Inexact Full Newton Method for Full Waveform Inversion Using Simultaneous Encoded Sources; #90187 (2014)
Amsalu Y. Anagaw and Mauricio D. Sacchi
Search and Discovery.com
... techniques. Here, we adopt the conjugate gradient least-squares (CGLS) method to solve equation [8]. The CGLS scheme requires only the action of the Hessian...
2014
Resolving complex velocity and gas absorption features with full-waveform inversion in the Taranaki Basin, New Zealand
Yuelian Gong, Dominic Fell, Robert Hunn, Richard Bisley, Alexander Karvelas, Bee Jik Lim
Petroleum Exploration Society of Australia (PESA)
... of diving-wave FWI followed by four CIP tomography updates. Then, Q-FWI was performed to resolve the shallow gas Q bodies, followed by least-squares FWI using...
2019
Geophysics used to help find good quality groundwater in the Vientiane Plain, Lao PDR
Michael Hatch, Okke Batelaan, Eddie Banks, Somphasith Douangsavanh
Petroleum Exploration Society of Australia (PESA)
..., 1996. Rapid least-squares inversion of apparent resistivity pseudosections by a quasiNewton method, Geophysical Prospecting, vol. 44, 131-152...
2019
Abstract: Resolvability Analysis of Single Azimuth Seismic Moment Tensor Inversion; #90171 (2013)
Ismael Vera Rodriguez and Mauricio D. Sacchi
Search and Discovery.com
... displacements for the corresponding component, receiver and wave type. We carried on the inversion by evaluating the least squares solution to equation (5) m...
2013
Abstract: Multi-trace Acoustic-impedance Inversion with Transform-domain Sparsity Promotion; #90174 (2014)
Sanyi Yuan, Shangxu Wang, Ning Tu, and Xiang Li
Search and Discovery.com
... data recovery with curvelet frames: Geophysical Journal International, 173(1), 233–248. Herrmann, F. J., and Li, X, 2011, Efficient least-squares...
2014
Abstracts: Time-Lapse VSP Data Analysis from Weyburn CO2 Project; #90173 (2015)
Amin Baharvand Ahmadi, Igor Morozov
Search and Discovery.com
...) dependencies and fit straight lines to them by using the least squares method. Figure 3: Calibration of the 3-D VSP and surface seismic data at the same...
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
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
Seamount Age Estimates from Paleomagnetism and Their Implications for the History of Volcanism on the Pacific Plate
William W. Sager
Circum Pacific Council Publications
... between the two methods is that the former assumes that the magnetization of the seamount is homogeneous but the latter does not. In the least-squares...
1992
Offshore Positioning Systems: The Human Interface
D. F. Haines
Southeast Asia Petroleum Exploration Society (SEAPEX)
... filtering method in use gyro heading method of calculation (least squares, error triangles) Output: position coordinates (geographic...
1980
Raman Microscopy Analysis of Wyoming CarbonSAFE Pilot Well Thin Sections for Mineralogy and Organic Matter Characterization
Grant A. Myers, Trevor Brown, Shavinka Fernando, Erin Phillips, Fred McLaughlin
Unconventional Resources Technology Conference (URTEC)
... spectra were analyzed with Direct Classical Least Squares to identify and quantify minerals. The location and concentration of minerals was color-coded...
2021
Assessment of a Marcellus Shale Prospect Using Seismic, Microseismic, and Completions Data
Scott Singleton, Mark Suda
GCAGS Transactions
... then is to determine the weight values. This is most commonly done using a least-squares approach. Non-linear methods do not assume...
2012
Implications To Organic Maturation Studies of Evidence for a Geologically Rapid Increase and Stabilization of Vitrinite Reflectance at Peak Temperature: Cerro Prieto Geothermal System, Mexico: REPLY
C. E. Barker
AAPG Bulletin
... OF VITRINITE REFLECTANCE AND TEMPERATURE DATA Bostick's renewed argument (from Bostick, 1984) about inverse prediction in least squares regression analysis...
1993
The Makran Continental Margin: Structure of a Thickly Sedimented Convergent Plate Boundary: Convergent Margins: Field Investigations of Margin Structure and Stratigraphy
Robert S. White, Keith E. Louden
AAPG Special Volumes
... for the offshore and inshore lines respectively. These travel time corrections assumed that the deep refractors paralleled the sea floor and used least-squares...
1982
No large bias within species between the reconstructed areas of complete and fragmented fossil leaves
Eric R. Hagen, Dana L. Royer, Ryan A. Moye, Kirk R. Johnson
PALAIOS
... terms from the ordinary least-squares regression. We observe a strong relationship between the inverse of 28 vein density and leaf area in our 573...
2019