The Use of Multivariate Analysis and Raman Spectroscopy for the Assessment of Thermal Maturity

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ABSTRACT: Integration of Production and 4D Seismic Data for Improved Reservoir Characterization; #90017 (2003)

Mokhles Mezghani, Valerie Langlais, Mickaele Le Ravalec-Dupin, Frederic Roggero

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... the minimization of a weighted least-squares objective function, which includes both production and 4D seismic data. The gradual deformation parameterization...

ABSTRACT: Seismic Noise Tomography in the Chile Ridge Subduction Region; #90113 (2010)

Alejandro Gallego, Raymond M. Russo, Diana Comte, Victor I. Mocanu, Ruth E. Murdie, and John C. Vandecar

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... least-squares inversion of the Rayleigh wave travel times. The process was applied to cross correlation pairs determined in two period bands, 2.5-10 sec...

ABSTRACT: Gravity Signatures of the Deep-Water Reservoirs of Offshore Nigeria, West Africa; #90115 (2010)

A. A. Adepelumi and O. O. Folarin

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... was achieved.Furthermore spectral analyses method was applied to the Bouguer anomaly. The anomaly depth was obtained by computing least-squares fit to the lowest...

Abstract: Comparison of Low-Frequency Data from Co-Located Receivers Using Frequency Dependent Least-Squares-Subtraction Scalars; #90172 (2014)

Kevin W. Hall, Gary F. Margrave, Malcolm B. Bertram

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...Abstract: Comparison of Low-Frequency Data from Co-Located Receivers Using Frequency Dependent Least-Squares-Subtraction Scalars; #90172 (2014) Kevin...

Abstract: Accurate Water Saturation Estimation of the McMurray Formation: Wireline Log vs Core Data; #90213 (2015)

Martin Eriksson, Steve Hogan, and Chi-Tak Yee

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... calculated water saturation’s compare across a similar sample interval to that of the core corrected water saturation’s. Finally, by applying a least squares...

Abstract: From Elastic to Geomechanical Properties. Onshore Field Case Study, Saudi Arabia; #90319 (2018)

Sultan Al Otaibi, Ayman Suleiman

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... the AI and the Young’s modulus logs with a least-squares regression line having a correlation coefficient of 99%. The resulting regression line...

Abstract: Biot-Gassmann Fluid Term Extraction Based on PP-PS Joint Inversion;

Qi Ma

Search and Discovery.com

... of generalized linear inversion and the iterative reweighed least-squares algorithm are applied to solve this function. Tests with synthetic data show...

Abstract: A New Approach to Automated Well-Log Correlation in Three Dimensions: Examples from the Permian Basin, Texas;

Zoltan Sylvester

Search and Discovery.com

... of pairwise DTW correlations into a least-squares optimization problem that is solved through the conjugate gradient method. The resulting...

Abstract: Fracture Detection and Imaging Using Three-Component Borehole Seismic Data; #91204 (2023)

Ali Aldawood, Ali Alzayer, Ahmed Alawami, Abdulmohsen Alali

Search and Discovery.com

... of the fracture infills, orientation, and size. We lastly applied least-squares migration to both the synthetic and field datasets to localize the fault plane...

Abstract: Progress in Multiple Attenuation with Land Seismic Data in the Sultanate of Oman: Examples of Wave-Equation Deconvolution; #91204 (2023)

Najla AlObaidani, Tahar ben Youssef, Rahma Al-Harthy, Gregory Culianez

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... step consists of using least-squares inversion to derive an image of the multiple generators from the data based on the multiple periodicities...

Abstract: Deep Learning Inversion on Seismic Cubes; #91204 (2023)

Aleksandr Koriagin, Alexey Kozhevin, Stepan Goriachev, Roman Khudorozhkov

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... each patch to fit the already assembled overlap via least-squares regression. Lastly we show how one can evaluate the assembled velocity model...

Modeling the Semivariogram: New Approach, Methods Comparison, and Simulation Study

A. Gribov, K. Krivoruchko, J. M. Ver Hoef

AAPG Special Volumes

... procedure using modified iterative weighted least squares is presented. This algorithm is shown to be reliable for a wide range of data types...

Level of Heat Flow in the Western Part of the Tersko-Kuma Depression

G. M. Sukharev, S. P. Vlasova

Petroleum Geology: A Digest of Russian Literature

... of geothermal gradient calculated by the least squares method for wells 18, 11, and 13 for the 1800–3700 m interval are similar. For example, in well 18...

Role of Compaction in Listric Shape of Growth Normal Faults

Hong-Bin Xiao, John Suppe

AAPG Bulletin

.... Therefore, we abandon direct observations of initial conditions for a least-squares inversion. First, let us choose an initial sand porosity...

Abstract: Acceleration on Sparse Promoting Seismic Applications; #90187 (2014)

Lina Miao and Felix Herrmann

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...||1 subject to ||Ax – b||2  ), seeking a minimum one-norm solution of an undetermined least-squares problem. Trying to probe the optimum trade-off...

Marchenko-based internal multiple attenuation feasibility analysis for a thin-layered media in ultra-shallow water OBN from offshore Middle East

Frederico Xavier de Melo, Suyang Chen, Luis Salinas, Shotaro Nakayama, Nozomi Yamamoto

International Meeting for Applied Geoscience and Energy (IMAGE)

...-based decomposition matching, followed by a multi-dimensional and multi-frequency simultaneous least-squares subtraction. Results Although...

Thin Bed Resolution and the Determination of Flushed Zone Resistivity in Oil Based Mud

Joseph F. goetz, Roland Chemali, Douglas J. Seifert

Geological Society of Malaysia (GSM)

.... SmvA, a global mapping dip computation program, makes optimum use of the available redundancy through a weighted least squares optimization approach...

Pengukuran kemasinan air tanah di dataran pantai Pekan-Nenasi, Pahang dengan teknik geoelektrik dan geokimia (IN MALAY), Groundwater salinity measurments at Dataran Pekan-Pantai Nenasi, Pahang using geochemical and geoeletrical techniques

Umar Hamzah, Abdul Rahim Samsudin, Ismail C. Mohamad, Norhafizi Khalid, Shahimi Sali

Geological Society of Malaysia (GSM)

.... Proceedings Annual Geological Conference, Pangkor, Perak, Persatuan Geologi Malaysia, 197-204. LoKE, M.H. AND BARKER, R.D., 1995. Least-squares deconvolution...

Use of Automatic Moment Tensor Inversion in Real Time Microseismic Imaging

Michael Kratz, Michael Thornton

Unconventional Resources Technology Conference (URTEC)

... and Richards, 1980). A least squares inversion (Sipkin, 1982) is utilized for the full moment tensor solution. This provides a general fit solution...

Hybridised Weighted Boot-Strap Differential Semblance

Hamish Wilson, Lutz Gross

Petroleum Exploration Society of Australia (PESA)

...; Fomel, 2007b; Liu et al., 2014; Chen et al., 2015) in which we obtain the local similarity through solving a least-squares problem with shaping...

Continental Oceanic Crustal Transition in the Gulf Coast Geosyncline: Rifted Margins: Field Investigations of Margin Structure and Stratigraphy

Abou-Bakr K. Ibrahim , Elazar Uchupi

AAPG Special Volumes

... the first ground arrivals were used in the analyses. Data from the travel time curves were fitted by the least squares method, and the inverse slope...

Inexpensive Dual Beam Turbidimeter

Cathie Lubell, Thomas Barry, Edward Brody, Gregory Hearn

Journal of Sedimentary Research (SEPM)

... that the turbidity is reproducible to 5%. Of course, a least squares fitting procedure could be employed to determine the slope and more pathlengths could...

Ferro-Magnesian Calcite Cement in Sandstones

A. Jack Nash, Edward D. Pittman

Journal of Sedimentary Research (SEPM)

... spectrographic analyses, which were made on some samples for comparison, showed relatively good agreement with atomic absorption measurements. A least squares...

Abstract: Time-Lapse FullWaveform Inversion Application To Seismic Monitoring Of CO2 Sequestration; #90224 (2015)

Wubshet Alemie

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... The inversion algorithm is derived in least squares sense by defining a cost function, which is a function of data residual (the difference between...