Hydrocarbon Generation and Migration Routes in the East Texas Basin

William A. Wescott, William C. Hood

AAPG Bulletin

... relationship for some east Texas counties. The solid line is the estimated geothermal gradient and the dashed line is the least squares regression best...

Extension, Displacement, and Block Rotation in the Larger Gullfaks Area, Northern North Sea: Determined from Map View Restoration

Delphine Rouby , Haakon Fossen , Peter R. Cobbold

AAPG Bulletin

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

Permeability loss with depth in the Cenozoic carbonate platform of west-central Florida

David A. Budd

AAPG Bulletin

... permeabilities (69, 129, 181, and 418 md, respectively) and a systematic reduction with depth in their mean and maximum permeabilities. Least-squares...

Structure and geomorphology of the Duchesne graben, Uinta basin, Utah, and its enhancement of a hydrocarbon reservoir

Alicia Groeger, Ronald Bruhn

AAPG Bulletin

.... A plane was then fit to the well intercepts of each marker bed in the 16 northernmost wells using linear, least squares regression (Davis, 1986...

The effective source rocks in the Cambay basin, India

A. Banerjee, S. Pahari, M. Jha, A. K. Sinha, A. K. Jain, N. Kumar, N. J. Thomas, K. N. Misra, K. Chandra

AAPG Bulletin

... Kalol depression). Locations of the KLOL and GNDR fields are shown in Figure 3. The least squares best fit line was simulated using the EASY Ro program...

The practice of graphical fluid-gradient interpretations of formation tester pressure data

Andrew Chen

AAPG Bulletin

... using ordinary least squares methods. A linear regression model assumes that a homogeneous reservoir fluid exists across the entire formation interval...

Improving total organic carbon estimation for unconventional shale reservoirs using Shapley value regression and deep machine learning methods

Jaewook Lee, David E. Lumley, and Un Young Lim

AAPG Bulletin

... the Levenberg-Marquardt damped least-squares training method. This method blends the steepest descent method and the Gauss–Newton algorithm, so it has both...

Some Problems in Thermal History Studies

David Deming, Jeffrey A. Nunn, Steven Jones, David S. Chapman

Rocky Mountain Section (SEPM)

..., Aracas field data (Fig. 1b) are uncorrected. Least-squares regressions yield average geothermal gradients of 24 and 20 °C/km; respectively...

Extending Graphic Correlation to Many Dimensions: Stratigraphic Correlation as Constrained Optimization

William G. Kemple, Peter M. Sadler, David J. Strauss

Special Publications of SEPM

... the familiar least squares linear loose analogy with the evaluation of regression we suggest a a hypothetical aqueduct project The second part explains how...

Development Saturation Pressure Correlations for Reservoir Fluids from Unconventional Reservoirs

Nelson Mejia-Martinez, Thomas A. Blasingame

Unconventional Resources Technology Conference (URTEC)

... yields the "least squares" approach). The more common statistical term for an "error function" is that of an "objective function," where (obviously...

Equilibrium of Form and Forces in Tidal Basins of Coast of Texas and Louisiana

W. Armstrong Price

AAPG Bulletin

... 5. The dispersions of the points are reasonably small in each graph, and statistical analysis by least squares shows that each satisfies the equation...

The Dynamic Interplay of Oil Mixing, Charge Timing, and Biodegradation in Forming the Alberta Oil Sands: Insights from Geologic Modeling and Biogeochemistry

Jennifer Adams, Steve Larter, Barry Bennett, Haiping Huang, Joseph Westrich, Cor van Kruisdijk

AAPG Special Volumes

... multivariate statistical methods (such as alternating least squares deconvolution methods).Finally, it is likely that the complexity of the petroleum systems...

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Water

K. O. Emery, Elazar Uchupi

AAPG Special Volumes

... and again in 1929 the net was made internally consistent by a least-squares "special adjustment." Fig. 198. Comparison of mean monthly sea levels...

Paleoenvironmental Isotope Geochemistry and Paragenesis of Lacustrine and Palustrine Carbonates, Flagstaff Formation, Central Utah, U.S.A.

Gabriel J. Bowen, Andrew L. Daniels, Brenda B. Bowen

Journal of Sedimentary Research (SEPM)

... with acetone. Five powder mixtures representing calcite/dolomite molar ratios between 0 and 1 were analyzed, and ordinary-least squares regression used...

Transverse Ribs: Their Characteristics, Origin and Paleohydraulic Significance

Emlyn H. Koster

Dallas Geological Society

..., 1961). Inter-relationships of Rib Parameters On the assumption that ribs are formed in association with antidunes, use of least-squares regression...

Wireline Geochemical Log Analysis of Thin Bed Reservoirs: Gulf of Mexico

R. V. Everett, J. E. Mc Donald, M. M. Herron

New Orleans Geological Society

... and in the detector. Analysis of the intensity of gamma rays present in such a spectrum by a set of standards, uses a weighted-least-squares (WLS...

Testing evolutionary dynamics on first lower molars of Pliocene Ogmodontomys (Arvicolidae, Rodentia) from the Meade Basin of southwestern Kansas (USA): A landmark-based approach

Federica Marcolini, Paolo Piras, Robert A. Martin

PALAIOS

..., USA. ROHLF, F.J., and CORTI, M., 2000, Use of two-block partial least-squares to study covariation in shape systematic biology: Systematic Biology...

Transverse Ribs: Their Characteristics, Origin and Paleohydraulic Significance

Emlyn H. Koster

CSPG Special Publications

..., 1961). Inter-relationships of Rib Parameters On the assumption that ribs are formed in association with antidunes, use of least-squares regression...

Resin-Based Nanocomposites Coated Proppants as Scale Inhibitor Carrier and Slowly Releasing Container

Ali Aref Ali Alzanam, Ali Samer Muhsan

Unconventional Resources Technology Conference (URTEC)

... diffusion models. The parameters of these models were determined using the least-squares linear regression approach. Table 3 describes the linearization...

Lithology Dependence of Porosity in Slope and Deep Marine Sediments

Michelle A. Kominz, Kyle Patterson, Danielle Odette

Journal of Sedimentary Research (SEPM)

... calculated for subsets of the data dominated by each lithology. Simple exponential fits were calculated using a least-squares approach (e.g., Snedecor...

Porosity Variation in the Tensleep and its Equivalent the Weber Sandstone, Western Wyoming: A Log and Petrographic Analysis

J.E. Fox, P.W. Lambert, R.F. Mast, N.W. Nuss, R.D. Rein

Rocky Mountain Association of Geologists

... for a sandstone having a matrix velocity of 18,000 ft/sec (5,486 m/sec) ( A t equivalent - 55.5 psec). The solid line is the least squares fit line...

Sedimentation and Trapping Mechanism in Upper Miocene Stevens and Older Turbidite Fans of the Southeastern San Joaquin Valley, California

Bruce A. MacPherson

Pacific Section of AAPG

..., the best least squares fit for these data is a straight line — a further verification of Hubbell’s original observation. Oil Occurrence — Greeley...

Potential for carbon sequestration in the Hemlock Formation of the Cook Inlet basin, Alaska

Scott Pantaleone, and Shuvajit Bhattacharya

Environmental Geosciences (DEG)

...) regression technique rather than ordinary least squares (OLS) regression. The RMA regression is more appropriate than standard OLS regression when...

Controls On Lower-Coastal-Plain Valley Morphology and Fill Architecture

C. R. Mattheus, A. B. Rodriguez

Journal of Sedimentary Research (SEPM)

... linear regression (least squares fit; P < 0.0001), and tributary incised valleys plot along the same regression line as coastal-prism incised valleys...