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The AAPG/Datapages Combined Publications Database

Showing 1,682 Results. Searched 200,619 documents.

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Proppant Damage Characterization using Nuclear Magnetic Resonance Measurements, #80552 (2016).

Saurabh Tandon, Aderonke Aderibigbe, Zoya Heidari, Jingyu Shi, Tihana Fuss-Dezelic

Search and Discovery.com

... to the total amount of water present in the sample. The least squares fitting method was then used for inversion for getting the T2 distribution from...

2016

Forecasting the Domestic Utilization of Natural Gas in Nigeria (2015-2020); #70234 (2017)

Rita U. Onolemhemhen, Jumai J. Adaji, Sunday O. Isehunwa, Adeola Adenikinju

Search and Discovery.com

... for a short-term period, using an econometric methodology of ordinary least squares and an ARIMA model, it estimates the relationship between the variables...

2017

Seismic Acquisition Optimization for Exploration in Thrust Belts and Foreland Basins; #42268 (2018)

Pedro Muñoz, Juan Uribe, Nestor Sanabria

Search and Discovery.com

... sampling acquisition to support data reconstruction. References Cited Herrmann, F.J., and X. Li, 2012, Efficient Least-Squares Imaging with Sparsity...

2018

Mapping Storage and Enhanced Gas Recovery for Organic Shale in the Midwest Regional Carbon Sequestration Partnership; #80667 (2019)

Brandon C. Nuttall, Thomas N. Sparks, Stephen F. Greb

Search and Discovery.com

... for estimating the distribution of organic matter will yield a probabilistic result. the Utica Consortium TOC data set. 2) Linear least squares plots...

2019

High-resolution Mg/Ca ratios in a coralline red alga as a proxy for Bering Sea temperature variations from 1902 To 1967

Steffen Hetzinger, Jochen Halfar, Andreas Kronz, Robert S. Steneck, Walter Adey, Phillip A. Lebednik, Bernd R. Schöne

PALAIOS

... are indicated in the panel (p Ͻ 0.001, significant at the 1% level). Correlations were computed using ordinary least squares (OLS) regression with zero lag...

2009

MINERALIZATION THROUGHOUT THE HILLABEE

Stephen H. Stow, James F. Tull

Alabama Geological Society

... -65. Petrology, v. 12, p. 1-65. Wright, T.L, and Doherty, P.C., 1970, A linear programming and least squares computer method for solving petroWright...

1979

Geology of the Iron Springs Mining District, Utah1

Peter D. Rowley, Daniel S. Barker

Utah Geological Association

.... Wright, T. L., and Doherty, P. C., 1970, A linear programming and least squares computer method for solving petrologic mixing problems: Geol. Soc...

1978

Paleomagnetic and Tectonic Interpretation of the Parkhurst Ridge Limestone, Coastal Belt Franciscan, Northern California

W. P. Harbert, R. J. McLaughlin, W. V. Sliter

Pacific Section SEPM

... was subjected to least-squares (principal component) analysis as presented in Kirschvink (1980). Principal component analysis of trivariate data yields...

1984

Kerogen Maturity and Type by Reflected Light Microscopy Applied to Petroleum Exploration

Wallace G. Dow, Dolores I. O'Connor

Special Publications of SEPM

... Ro value, even if one is available. The best primary vitrinite populations, however, should fall closest to the least-squares fit line and form...

1982

Structural Analysis of the Boktukola Syncline, Central Ouachita Mountains, Oklahoma

Aaron Ball

Oklahoma City Geological Society

... Special Publication No. 22, p. 120–142. Mulchrone, K.F., D. Pastor-Galán, and G. Gutiérrez-Alonso, 2013, Mathematica code for least-squares cone fitting...

2014

Integrating Geophysical and Trench Data to Analyze Shallow Faulting in the Wasatch Fault Zone Near Provo, Utah County, Utah

Alvin K. Benson, Nathan Brett Mustoe, James N. Carver

Utah Geological Association

... of near-surface materials could be determined. Parasnis’ (1962) least-squares analysis was employed to determine this density from statistics...

1995

Rb-Sr Whole-Rock Age Determinations of the Iron Hill and McClure Mountain Carbonatite-Alkalic Complexes, Colorado

M.D. Fenton, G. Faure

Rocky Mountain Association of Geologists

... deviation) of each Isochron e r r o r ( 1 s t a n d a r d deviation) of e a c h i s o c h r o n were calculated by least squares regression w e r e...

1970

Geothermal Conditions and Their Implications for Basement Tectonics in the Gulf Coast Margin

Douglas L. Smith , William T. Dees , Danny W. Harrelson

GCAGS Transactions

...; and least squares gradients were determined, where necessary, for separate lithologic zones penetrated by the boreholes. Drilling practices in the Gulf Coast...

1981

Experiences in Underbalanced Drilling and Testing Low Gravity Oil from a High Productivity Reservoir in Seram Island, Maluku Province, Indonesia

I. P. Moyle, Stephen Dyer, D. G. S. Lamb, W. G. Mogg

Indonesian Petroleum Association

... unequal phase shifts or various tide components which can be analysed using fourier techniques Data fitting using multi-linear least squares...

2000

Normal Geothermal Gradient in United States

C. E. Van Orstrand

AAPG Bulletin

...) the solution of which by the method of least squares gives EQUATION (5) the residuals (v1, v2, ... vn) being subject to the condition EQUATION (6) Following...

1935

Recommendations From Error Analysis of Single Well Microseismic Data With Full-Wavefield Moment Tensor Inversion: A Case Study

Juan M. Lorenzo, Trudy L. Watkins, Arash Dahi Taleghani

Unconventional Resources Technology Conference (URTEC)

...cement data (u) from seismic receivers and information (i.e. seismic velocities) about the Earth model (G). The inversion problem is a lea...

2017

Implications of Stratigraphic Variability of Source Rocks: Chapter 2

B. J. Katz, T. M. Breaux, E. L. Colling , L. M. Darnell, L. W. Elrod, T. Jorjorian, R. A. Royle,V. D. Robison, H. M. Szymczyk, J. L. Trostle, J. P. Wicks

AAPG Special Volumes

...-squares fit of the data from the Ventura basin. The dashed line represents a least-squares fit of the data from the Santa Maria basin. End_Page 9...

1993

Chronostratigraphy of a Prograded Carbonate Platform Margin: A Record of Dynamic Slope Sedimentation, Western Great Bahama Bank

Donald F. Mcneill, Gregor P. Eberli, Barbara H. Lidz, Peter K. Swart, Jeroen A.M. Kenter

Special Publications of SEPM

... unstClble C Detennination of inclination SOO'c. utilized a by 500 Determination of inclination angles utilized a least-squares thatofKirschvink 1980...

2001

Pore Water Salinity as a Tool for Evaluating Reservoir Continuity and Fluid Migration Pathways in the Wilcox Group of Central Louisiana

Masaaki Funayama ,, Jeffrey S. Hanor

GCAGS Transactions

... and Rm75, using techniques described in Funayama (1990). Linear least squares regressions through these data give reasonable fits. Coefficients from...

1995

Feldspar--Grain Size Relations in Cambrian Arenites, Upper Mississippi Valley

I. Edgar Odom

Journal of Sedimentary Research (SEPM)

... highly feldspathic. The correlation coefficient of 0.871 for the least squares regression line is good considering that the composition was determined...

1975

Continental Extension in Southern Britain and Surrounding Areas and Its Relationship to the Opening of the North Atlantic Ocean: Chapter 26: European-African Margins

R. Andrew Chadwick, Roy A. Livermore, Ian E. Penn

AAPG Special Volumes

... (1987) used a weighted-least squares procedure to derive a Euler pole directly from the 290-240 Ma segments of the APW paths. The best-fitting rotation...

1989

The Nature and Controls on Downstream Fining Within Sedimentary Links

Stephen Rice

Journal of Sedimentary Research (SEPM)

... fitted to D50 and D95 data using least-squares linear regression. On the basis of performance statistics there is little to choose between them (Table 1...

1999

Interstitial Water Composition and Geochemistry of Deep Gulf Coast Shales and Sandstones

Gene W. Schmidt

AAPG Bulletin

... obtained by the Louisiana Geological Survey (Harder, 1960; Hodges et al., 1963). A computer-plotted least-squares fit of the shut-in temperatures between...

1973

The Hydrodynamics of the Big Horn Basin: A Study of the Role of Faults (1)

J. D. BREDEHOEFT , K. BELITZ , and S. SHARP-HANSEN

AAPG Bulletin

..., we decided to analyze all the data together (Figure 11). A least-squares fit of equation 3 to the data in Figure 11 yielded coefficients values...

1992

Excess Area and Depth to Detachment

Jean-Luc Epard , Richard H. Groshong, Jr.

AAPG Bulletin

...-length measurements (equation 2). When data from more than two horizons are available, the line can be fit by least squares to obtain the best fit...

1993

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