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The AAPG/Datapages Combined Publications Database

Showing 1,463 Results. Searched 196,121 documents.

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Ascending

ReGenerating the Gippsland Basin

J. Firth, K. Zhao, S. Birdus, N. Mudge, J. Zhou

Petroleum Exploration Society of Australia (PESA)

... inversion (FWI) and least-squares Q pre-stack depth migration (LSQPSDM), are essential to stabilize AVO inversion and to improve the understanding...

2018

Comparative Experimental Investigation of Damage Variables for Sedimentary and Geothermal Rock Specimens Based on 3D-DIC

Fatick Nath, Eleazar Cabezudo, Nora Garcia Romero

Unconventional Resources Technology Conference (URTEC)

... least squares and pointwise least squares for displacement field and strain field measurements. Opt. Lasers Eng. 2009, 47, 865– 874. Song, Y. Sungjun...

2024

Settling Velocities of Natural Sand Grains in Air

Bingquan Cui, Paul D. Komar, Jumpei Baba

Journal of Sedimentary Research (SEPM)

... by simple least-squares linear regression of the logs of the values of the measured settling rates, Wm, versus the expected rate ws for a sphere having...

1983

Profiler-Sonobuoy Measurements in Colombia and Venezuela Basins, Caribbean Sea

William J. Ludwig , Robert E. Houtz , John I. Ewing

AAPG Bulletin

... in Figure 3. A plot of sediment-interval velocities versus one-way reflection time in the sediments appears in Figure 4 together with the least-squares...

1975

Compaction Curves

Brewster Baldwin , Crispin O. Butler

AAPG Bulletin

... and Halley (1982) show data with a scatter of some 20% at any given depth. They present a least-squares exponential fit. Their curve (Figure 4, curve S-H...

1985

Geothermal gradient and temperature of hydrogen sulfide-bearing reservoirs, Alabama continental shelf

Seiichi Nagihara, Michael A. Smith

AAPG Bulletin

... line is the linear, least-squares fit to the plot. Depth ranges of the H2S-bearing James and the Norphlet reservoirs are also indicated.For the data...

2005

Circum-Arctic Petroleum Systems Defined Using Biomarkers, Isotopes, and Chemometrics, #30146 (2011)

Kenneth Peters, Scott L. Ramos, John Zumberge

Search and Discovery.com

... to the giant Prudhoe Bay Field. Alternating least squares of concentration data (ALS-C) for Copyright © AAPG. Serial rights given by author. For all other...

2011

A NEW PERSPECTIVE ON THE ZONATION AND CORRELATION OF BARREN STRATA: AN INTEGRATED HEAVY MINERAL AND PALAEOMAGNETIC STUDY OF THE SHERWOOD SANDSTONE GROUP, EAST IRISH SEA BASIN AND SURROUNDING AREAS

M. Manger, P. Turner, D. Ince, J. Pugh and D. Wright

Journal of Petroleum Geology

... and the Continental Shelf of North-West Europe. London, Applied Sciences Publishers, pp. 3-28. KIRSCHVINK, J.L., 1980. The least-squares line and planes...

1999

NW Shelf Digital Atlas … A Tool for Regional Exploration

Adam Smith, Huw Edwards, Daryl Gould, Shane Westlake

Indonesian Petroleum Association

... this limitation, a combination of computer and manual interpretation incorporating additional well control was applied in those cases. A least squares...

2007

Correlation and Age of the Upper Jurassic Morrison Formation from Magnetostratigraphic Analysis

M. B. Steiner, S. G. Lucas, E. M. Shoemaker

Rocky Mountain Section (SEPM)

... 1062, p. 90 and 95. Kirschvink, J.L., 1980, The least-squares line and plane and the analysis of paleomagnetic data: Geophys. J., 62, p. 699–718...

1994

Ultrasonic velocity tomography of rock sample

Tian Xie, Jiajia Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

...ps://doi.org/10.1190/segam2020-3428143.1. Qingyang, L., Y. Guo, Q. Cai, F. Meng, G. Qin, and N. Li, 2019, Multi-sources least-squares reverse time migrati...

2023

A Compensated Spectral Natural Gamma Ray* Logging System

C. Kessler, R. Washa, G. S. Yarbro

Indonesian Petroleum Association

... to be detected, which permits additional measurements of formation lithology in open holes and casing thickness in cased wells. The least squares calculation...

1984

MB Field Reservoir Simulation Study

Dodi Hidayat

Indonesian Petroleum Association

... 9. Figure 8. Sidewall Core Analysis Figure 9. Porosity versus Permeability (test) The least-squares regression fit of these data is: where...

1991

The Importance of the Pseudo N-D Logs in Petrophysical Analysis of Well Tembang-8ST4 (A Case Study)

Yana Hendrayana, Bowo Pangarso, Miftahul Firdaus

Indonesian Petroleum Association

... Regression (MLR). MLR allows us to predict an output log from a number of different input logs using a least squares regression routine, which finds...

2013

Anisotropic Multi-Azimuthal Velocity Model Building and Depth Imaging on Tulip 3D Coil Shooting Survey

Michele Buia, Suyang Chen, Olga Zdraveva, Swee Leng Ng, Martin Bayly, Michelle Tham

Indonesian Petroleum Association

...” Grid Tomography to update the model. The Grid Tomography used a damped least-squares solver at progressively finer scale lengths, with a preconditioning...

2011

Application of Fourier Transform Infra-Red Spectroscopy in Determination of Reservoir Properties

John Woods

Indonesian Petroleum Association

... appropriate spectral reprocessing programs were applied which included second derivative and least squares to solve overlap issues for the mineralogy...

2014

Effects of Sea-Level Rise on Deltaic Sedimentation in South-Central Louisiana

John T. Wells

Special Publications of SEPM

... by constructing a non-linear least-squares fit to the data points for each flood year and extracting a value for subaerial land at the mean sea-level...

1987

Study of the Relationship of Sedimentation and Structural Growth Using Trend Analysis

G. P. Myasnikova, V. I. Shpil’man

Petroleum Geology: A Digest of Russian Literature

... by the method of least squares. For calculation of the coefficients we used a program of correlational and regression analysis (Lorreg) compiled a few years...

1973

Extended Abstract: Integrating Time-Lapse 3D (4D) Seismic Data with Reservoir Simulators

John Waggoner

Petroleum Exploration Society of Australia (PESA)

... s as the correlation between the two data sets, much as the difference in production data is quantified as the sum of least squares differences. Both the production...

2000

On the Planimetric Shape of Wreck Bay, Vancouver Is.

J. M. Bremner, P. H. LeBlond

Journal of Sedimentary Research (SEPM)

... coordinates of the plan data points and (X, Y) the coordinates of the chosen log-spiral center. b) By the method of least squares, the best fitting straight...

1974

2-D Geoelectrical Resistivity Survey at a Proposed New Condominium Site of Port Dickson Beach Resort, Negeri Sembilan

Abdul Rahim Samsudin, Umar Hamzah

Geological Society of Malaysia (GSM)

.... Proceedings: Denver, Colo., Environmental and Engineering Geophysical Society, CD-ROM, 22 p. Loke, M.H. and Barker, R.D., 1996, Rapid least-squares...

2008

Verification of Tortuosity Equations: GEOLOGICAL NOTES

S. R. Faris , L. S. Gournay , L. B. Lipson , T. S. Webb

AAPG Bulletin

... distribution data for the samples. The data of columns 7 and 8 were used to obtain a least-squares solution for the relationship between T and F^phgr...

1954

Preprocessing of Logging Data: Part 4. Wireline Methods

J. G. Patchett

AAPG Special Volumes

... is shifted. Also, core data should not be resampled if least squares correlations are planned for calibrating logs or developing porosity and permeability...

1992

Figures: PART 1

Charles L. Angevine, Paul L. Heller, Chris Paola

AAPG Special Volumes

... parameters were estimated using the least-squares technique. End_Page 171------------------------ Fig. 4.8. Minimum and maximum estimates of water...

1990

Trace-Element and Major-Element Stratigraphy in Quaternary Sediments from the Arctic Ocean and Implications for Glacial Termination

A. Aldahan , G. Possnert , R. Scherer , N. Shi , J. Backman , K. Bostrom

Journal of Sedimentary Research (SEPM)

... profile (Figs. 5, 6). The least-squares linear regression correlation coefficients (Tables 2, 3) indicate significantly negative values between...

2000

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