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...

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...

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...

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...

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...

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...

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...

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...

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...

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...

Downhole Reservoir Raman System for Carbon Sequestration Measurement, Reporting, and Verification

Grant A. Myers, Alirza Orujov, Trevor Brown, Cody Morgan, Wade Bard, John Pope

Unconventional Resources Technology Conference (URTEC)

... calibration data sets. Figure 11 displays the linear least-squares (LLS) fitted data along with the lower and upper confidence limits. From Figure 11...

Examination of the Creaming Methods of Assessment Applied to the Gippsland Basin, Offshore Australia

D. J. Forman, A. L. Hinde

AAPG Special Volumes

... wells have been drilled plotted against new-field wildcat number. The straight line has been fitted by the least-squares method. Table 1. Values of r...

Testing Hydrocarbon Saturation Models For Use in Original Oil-in-Place Estimation: South Dome of Oregon Basin Field, Park County, Wyoming: Chapter 9

Michael J. Heymans, Douglas A. Steed, David E. Hamilton, Barbara A. Pavlov

AAPG Special Volumes

... decreases. A least-squares fit line drawn through data points on a plot of the logarithm of absolute permeability versus porosity is a common tool...

Eastern Boulder-Weld fault zone, Colorado: A gravity slide with pop-up structures

Richard H. Groshong, Jr., Ken Kittleson

Rocky Mountain Association of Geologists

...). The best-fitting line is found by least squares and the inverse slope of the line is the displacement that formed the structure. The linear...

An Integrated Approach to Determining 4D Stress Development at Castle Cove

Hugo B. Burgin, Khalid Amrouch, Philippe Robion, David Kulikowski

Australian Petroleum Production & Exploration Association (APPEA) Journal

... test of least-squares strain gage calculation using twinned calcite. Geological Society of America Bulletin 85(12), 1855–1864. doi:10.1130/0016-7606...

Solving the puzzle of the bivalve shell fragment: inferring the original abundance and size frequency from the fragmented record

Eric N. Powell

PALAIOS

...; Warton et al. 2006; least normal squares method of Troutman and Williams 1987) to define the regression parameters: lengthwidth, length-thickness, width...

Geochemical Methods for the Quantitative Evaluation of the Petroleum Potential of Sedimentary Basins

A. E. Kontorovich

AAPG Special Volumes

... from empirical data by the least-squares method. The values of these parameters as determined by A.S. Fomicheve and myself for several regions of West...

Three-dimensional geomechanical modeling for constraint of subseismic fault simulation

Laurent Maerten, Paul Gillespie, Jean-Marc Daniel

AAPG Bulletin

..., D., P. R. Cobbold, P. Szatmari, S. Demerican, D. Coelho, and J. A. Rici, 1993, Least-squares palinspastic restoration of region of normal...

Deposits of the sandy braided South Saskatchewan River: Implications for the use of modern analogs in reconstructing channel dimensions in reservoir characterization

Ian A. Lunt, Gregory H. Sambrook Smith, James L. Best, Philip J. Ashworth, Stuart N. Lane, Christopher J. Simpson

AAPG Bulletin

...). Nonlinear, least-squares fitting of equation 2 to the probability density function of dune height results in values of and of 2.134 and 0.0597...

Pliocene Paleoenvironments in the Meade Basin, Southwest Kansas, U.S.A.

William E. Lukens, David L. Fox, Kathryn E. Snell, Logan A. Wiest, Anthony L. Layzell, Kevin T. Uno, Pratigya J. Polissar, Robert A. Martin, Kena Fox-Dobbs, Pablo Peláez-Campomanes

Journal of Sedimentary Research (SEPM)

... generated by a partial least-squares regression analysis of modern uppermost B horizon soil samples. Although MAP prediction errors are greater...

AAPG/SEG International Conference and Exhibition; - Abstracts, #9010 (2017).

Search and Discovery.com

Recent Relative Sea-Level Change in Eastern North America

Barbara V. Braatz, David G. Aubrey

Special Publications of SEPM

... portion of the time series to a positive trend during the later portion. Based on the best fit (in a least-squares sense) of a two-segment line, this change...

Crustal and Lithospheric Structure of the CarpathianPannonian Region: A Geophysical PerspectiveRegional Geophysical Data on the CarpathianPannonian Lithosphere

L. Pospil, A. dm, J. Bimka, P. Bodlak, T. Bodoky, P. Dvnyi, H. Granser, E. Hegeds, I. Jo, A. Kendzera, L. Lenkey, M. Nemok, K. Posgay, B. Pylypyshyn, J. Sedlk, W. D. Stanley, G. Starodub, V. Szalaiov, B. ly, A. utora, G. Vrga, T. Zsros

AAPG Special Volumes

... the data processing, least-squares, cross-spectral analyses were used to solve the horizontal impedance tensor transfer function. The apparent...

Using Ground-Penetrating Radar and Capacitively Coupled Resistivity to Investigate 3-D Fluvial Architecture and Grain-Size Distribution of a Gravel Floodplain in Northeast British Columbia, Canada

Adrian S. Hickin, Benjamin Kerr, Thomas E. Barchyn, Roger C. Paulen

Journal of Sedimentary Research (SEPM)

..., M.H., and Barker, R.D., 1996, Rapid least-squares inversion of apparent resistivity pseudosections by a quasi-Newton method: Geophysical Prospecting, v...

Development of Concepts of Regional Ground-Water Flow in the Part of the Great Basin in Eastern Nevada and Adjacent California and Western Utah – a Review

Joseph S. Gates

Utah Geological Association

... of recharge and discharge from springs and by evapotranspiration; and it uses a nonlinear least-squares regression technique to estimate model parameters...