Understanding The Mesozoics Beyond Basalt: A Case Study Of Sub-Basalt Imaging

S. Sengupta, S. K. Goswami, G. Menzel-Jones, B. Chowdhury, Artem Sazykin

Indonesian Petroleum Association

... on the local traveltime differences (Jiao et al. 2015; Vigh et al. 2016) to overcome the limitations of conventional least-squares FWI using a simple initial...

Quantitative X-Ray Diffractometry of Carbonate Rocks: RESEARCH METHOD PAPER

J. H. Fang, L. Zevin

Journal of Sedimentary Research (SEPM)

... with n unknown Rp. The least-squares solution for Equation 6 is given by [Rp] = [IspIsp]-1[Isp][1] (7) where Isp is the transpose matrix. ANALYTICAL...

Characterization of natural fracture systems: Analysis of uncertainty effects in linear scanline results

Rafael F. V. C. Santos, Tiago S. Miranda, José A. Barbosa, Igor F. Gomes, Gabriel C. Matos, Julia F. W. Gale, Virginio H. L. M. Neumann, and Leonardo J. N. Guimarães

AAPG Bulletin

... deposits from Araripe Basin, NE Brazil: Boletim de Geociências da Petrobras, v. 20, no. 1–2, p. 305–326.Moritz, H., 1972, Advanced least-squares methods...

Abstract: Compensation for Shear-wave Anisotropy Effects Above a Heavy Oil Reservoir; #90171 (2013)

Richard Bale, Kostya Poplavskii, and Colin Wright

Search and Discovery.com

... by visual inspection. A full analysis, using a robust least-squares method, was then performed which confirmed the initial estimates, and provided...

Abstract: Compensation for Shear-wave Anisotropy Effects Above a Heavy Oil Reservoir; #90171 (2013)

Richard Bale, Kostya Poplavskii, and Colin Wright

Search and Discovery.com

... by visual inspection. A full analysis, using a robust least-squares method, was then performed which confirmed the initial estimates, and provided...

Abstract: Making FX Interpolation More Robust by Spectrum-guided Reconstruction; #90171 (2013)

Mostafa Naghizadeh and Mauricio Sacchi

Search and Discovery.com

... the least-squares method (Duijndam et al., 1999). We illustrate with synthetic examples that the proposed method can handle gaps and extrapolation problems...

3D Aeromagnetic Mapping of the Williston Basin Basement; #41588 (2015)

Jiakang Li, Igor Morozov

Search and Discovery.com

... is the background field, and η is the Euler structural index. The method operates by solving the above over-determined equation using the least-squares method...

Joint Impedance Inversion Transforms Aid Interpretation, by Satinder Chopra, Ritesh Kumar Sharma, Mohammad Hossein Nemati, and Peter Cary; #41667 (2015).

Search and Discovery.com

Demultiple of High Resolution P-Cable Data in the Norwegian Barents Sea „ An Iterative Approach

A.J. Hardwick, S. Jansen, B. Kjolhamar

Petroleum Exploration Society of Australia (PESA)

... is applied on top of the least-squares adaption result from a previous iteration, to vals. For the first time a successful produce a secondary...

A Simple Autocorrelation Algorithm for Determining Grain Size from Digital Images of Sediment: RESEARCH METHODS PAPERS

David M. Rubin

Journal of Sedimentary Research (SEPM)

..., C.L. AND HANSON, B.J., 1974, Solving Least Squares Problems: Englewood Cliffs, New Jersey, Prentice-Hall, 340 p. MCCAVE, I.N., AND SYVITSKI, J.M.P....

Anomalous Tectonic Subsidence of the Southern Australian Passive Margin: Response to Cretaceous Dynamic Topography or Differential Lithospheric Stretching?

B. J. Brown, R. D. Müller, H. I. M. Struckmeyer

Petroleum Exploration Society of Australia (PESA)

... (~ factor). The misfit between the model (modelled subsidence and strain rate curve) and backstripped tectonic subsidence is minimised in a least-squares...

Phytostabilization of a landfill containing coal combustion waste

Christopher Barton, Donald Marx, Domy Adriano, Bon Jun Koo, Lee Newman, Stephen Czapka, John Blake, Donald Marx, Domy Adriano, Bon Jun Koo, Lee Newman, Stephen Czapka, John Blake, Domy Adriano, Bon Jun Koo, Lee Newman, Stephen Czapka, John Blake, Bon Jun Koo, Lee Newman, Stephen Czapka, John Blake, Lee Newman, Stephen Czapka, John Blake, Stephen Czapka, John Blake, John Blake

Environmental Geosciences (DEG)

... by backtransformation of the least-squares mean (LSM) from the logistic models (eLSM)/(1 + eLSM). Seedling growth was estimated by subtracting the initial height (April...

The Effect of Deep Burial and Folding on Sandstone Reservoirs in some Giant Gas Fields, South America

Gregory Smith, Maxim Lebedev, Reza Rezee, Stefan Iglauer

Petroleum Exploration Society of Australia (PESA)

... algorithm, for which the T2 distribution is obtained by a non-negative least squares fit. AEGC 2018: Sydney, Australia 2 The mercury injection analyses...

Integration of Gas-to-Oil Ratio into Production Decline Analysis to Predict Flow Regime Transition

S. G. Lapierre

Unconventional Resources Technology Conference (URTEC)

...-meansquare error minimization (RMSEM) and least-squares regression processes, respectively. The resulting forecasts were then combined to generate gas...

Investigation of Diffusion and Sorption in Shale Under Variable Net Stress

Ye Lyu, Devang Dasani, Theodore Tsotsis, Kristian Jessen

Unconventional Resources Technology Conference (URTEC)

... loading experiments by a non-linear least squares approach (Levenberg-Marquardt algorithm). We selected loading exp #2 for this purpose due to the more...

Littoral Transport in the Surf Zone Elucidated by an Eulerian Sediment Tracer Experiment

David B. Duane, William R. James

Journal of Sedimentary Research (SEPM)

... were converted to concentration and plotted versus time from injection. To provide an objective means of determining an asymptote for this data, a least...

Reservoir Geology of the Taylor Sandstone in the Oak Hill Field, Rusk County, Texas: Integration of Petrology, Sedimentology, and Log Analysis for Delineation of Reservoir Quality in a Tight Gas Sand: Reservoir Characterization and Modeling

C. L. Vavra, M. H. Scheihing, J. D. Klein

AAPG Special Volumes

... compared to unstressed measurements. Least-squares regression of the data produces a well constrained (R2= 0.89) equation of the form: [EQUATION (1...

Elemental and Oxygen Isotope Composition of Early Jurassic Belemnites: Salinity vs. Temperature Signals

Idoia Rosales, Sergio Robles, Santiago Quesada

Journal of Sedimentary Research (SEPM)

...) represented in Figure 6. The total number of observations is n = 67. The lines represent linear least-squares fit regressions. In left side...

End-Member Modeling of Siliciclastic Grain-Size Distributions: The Late Quaternary Record of Eolian and Fluvial Sediment Supply to the Arabian Sea and Its Paleoclimatic Significance

Maarten A. Prins, Gert Jan Weltje

Special Publications of SEPM

... weighted least decomposition of X obtained from constrained approximations to the singular value Weltje 1994 1997a Because the true number squares...

Predicting Estimated Ultimate Recovery from Flowing Material Balance Analysis Considering Rock and Connate Water Expansion for Unconventional Gas Reservoirs

Aykut Atadeger, Mustafa Onur, Leslie G. Thompson, Barry A. Ruddick

Unconventional Resources Technology Conference (URTEC)

...ions. Here, we use the robust straight-line fitting technique presented by Schlossmacher (1973) to avoid susceptibility of ordinary least-squares ...

Demonstration and Quantification with Raman Spectroscopy of the Displacement of Adsorbed Methane from Coal by Injected Dissolved Carbon Dioxide for Carbon Sequestration

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

Unconventional Resources Technology Conference (URTEC)

... mixtures, the technique of whole-spectrum Classical Least Squares analysis (Mark, 2010) was used to deconvolute complex overlapping spectrum components...

DETERMINATION OF FAULT SLIP COMPONENTS USING SUBSURFACE STRUCTURAL CONTOURS: METHODS AND EXAMPLES

S-S. Xu, L. G. Velasquillo-Martinez, J. M. Grajales-Nishimura, G. Murillo-MuÒetÛn, J. GarcÌa-Hernandez and A. F. Nieto-Samaniego

Journal of Petroleum Geology

...., DEMERCIA, S., COELHO, D. and RICI, J.A., 1993. Least squares palinspastic restoration of regions of normal faulting: application to the Campos...

Pore-scale Evaluation of Nuclear Magnetic Resonance Measurements in Organic-Rich Mudrocks Using Numerical Modeling

Saurabh Tandon, Zoya Heidari, Hugh Daigle

Unconventional Resources Technology Conference (URTEC)

... the T2 distribution in CPMG pulse sequence by inversion of magnetization decay using the zeroth order least squares curve fitting scheme (Aster et al...

Porosity--Depth Trends in Deeply Buried Upper Jurassic Reservoirs in the Norwegian Central Graben: An Example of Porosity Preservation Beneath the Normal Economic Basement by Grain-Coating Microquartz

Mogens Ramm,, Arne W. Forsberg, Jens S. Jahren

AAPG Special Volumes

...------------------------ high gamma-ray signals and poor reservoir quality at all depths (Table 1). Least-squares regression lines based on the porosity vs. depth...

Evidence for a Tidally Influenced Upper Carboniferous Ombrogenous Mire System: Upper Bench, Beckley Bed (Westphalian A), Southern West Virginia

James R. Staub, Joan S. Esterle

Journal of Sedimentary Research (SEPM)

.... All logs were matched with adjacent logs using a visual "least squares" best fit method (Galloway 1972) to assess lateral variability due...