Significance of Statistical Parameters for Distinguishing Sedimentary Environments in New South Wales, Australia

John R. Hails

Journal of Sedimentary Research (SEPM)

... of well to moderately well sorted quartz sand with an average standard deviation (sorting) value of 0.5 (Table 2). The sands are predominantly of medium...

The Heavy Mineral Population within the Beach Sand Facies of the Meridian Sand Exposed in Mississippi

William R. Reynolds

GCAGS Transactions

... deposition within a mainland or barrier beach setting. Based on the standard deviation of sample means and the sample coefficient of samples from 17...

Accuracy of Determination of Permeability of Reservoirs from Cores

A. I. Solomasov

Petroleum Geology: A Digest of Russian Literature

...le is (2) C = S k pr 2 / k pr where Sk pr2 is the standard deviation of the coefficient of permeability. Its value is found according to F...

Correlation of the Bishop Ash, a Pleistocene Marker Bed, Using Instrumental Neutron Activation Analysis

G. A. Borchardt , P. J. Aruscavage, H. T. Millard, Jr.

Journal of Sedimentary Research (SEPM)

...) and: gi = weighting coefficient between 1 and 0 which reflects precision iA = one standard deviation for concentration XiA calculated from counting...

Grain-Size Distribution and Depositional Environment of Whitemud Sandstones, Edmonton Formation (Upper Cretaceous) Alberta, Canada1

P. L. Binda, J. F. Lerbekmo

CSPG Bulletin

...), in the plot of the C-M diagram (Passega, 1957), and in discussing the general types of cumulative curves. Standard deviation, which requires better...

Geopressure Calculations in Real-time to Calibrate Operation Windows, #41931 (2016).

Carlos Martinez, Franklig Rodriguez, Edwin Hernandez, Edgar Gonzalez, Luis Corrales, Concepcion Isidro, Adrehny Leon

Search and Discovery.com

... a series of equations, which directly relate pore pressure with the amount of deviation between the observed values and those obtained from extrapolation...

Benchmark Responses - Application of Resistivity-Tool-Response Modeling for Formation Evaluation - Archie Series No. 2

Hezhu Yin

AAPG Special Volumes

... not been changed much over the last 50 years. The benchmark studies carried out in this chapter are on the responses of the longtime industry-standard...

Distribution, Composition and Characteristics of the Surficial Sediments of Lake Ontario

R. L. Thomas, A. L. W. Kemp, C. F. M. Lewis

Journal of Sedimentary Research (SEPM)

... precipitation. Mean gr in size and standard deviation, predictably show trends from nearshore to offshore, with decreasing grain size, related...

Paleogeographic Inferences from Suite Statistics: Late Pennsylvanian and Early Permian Strata in Central Oklahoma

William F. Tanner

Oklahoma City Geological Society

.... on Coastal Sedimentology; Florida State Univ., Tallahassee; 230 p. Figure 7. Variability diagram. Horizontal axis: Standard deviation of sample means...

Transformation of Weight Frequency and Number Frequency Data in Size Distribution Studies of Clastic Sediments

Basanta K. Sahu

Journal of Sedimentary Research (SEPM)

... is that the degrees of freedom for the standard deviation can be easily obtained as (N-1), where N is the total number of particles in the sample...

The Axial Ratio C/B as an Indicator of shape Selective Transportation

Luis A. Spalletti

Journal of Sedimentary Research (SEPM)

... downcurrent. Selective sorting also controls the standard deviation of C/B, which diminishes invariably with increasing transport distance. The properties...

Paleocurrent Analysis of the Mainly Fluviatile Permian and Triassic Beacon Rocks, Beardmore Glacier Area, Antarctica

Peter J. Barrett

Journal of Sedimentary Research (SEPM)

... different, and for the Fairchild and Buckley Formations, values for standard deviation are also similar. For these two units, each structure...

Durability characterisation of weathered sedimentary rocks using slake durability index and jar slake test

Wong Jia Mang, Abdul Ghani Md Rafek

Geological Society of Malaysia (GSM)

... rocks have high standard deviation which range value of Id1 for same types of rock samples are very large that cannot represent the rock durability...

Classification of Sandstone Pore Structure and Its Effect on Water-Flooding Efficiency: Chapter 15

Shen Pingping, Li Bingzhi, Tue Puhua

AAPG Special Volumes

...µ, a grade difference on an order of only 103, and the physical meaning would be somewhat doubtful if is used to calculate the standard deviation...

Case Studies - Application of Resistivity-Tool-Response Modeling for Formation Evaluation - Archies Series No. 2

Hezhu Yin

AAPG Special Volumes

... 1-D Modeling Example: Deviation/Dip Effect Case study 1: Background Benchmark Bed boundaries Forward-modeling-based iterative inversion...

Gas Appraisal, a Graphical Short-Cut for Geologists*

R. P. Schoemaker

CSPG Bulletin

... Mr. P. C. Daly for his valued assistance in preparing the illustrations. Figure 1. Deviation from the ideal gas law. End_Page 200...

Mobile Separator Test as Multi Phase Flow Meter Unit

Aliefiyan Nursanda Muklas, Ali Hamzah, Bonni Ariwibowo, Slamet Wardiman, Maryadi Fadli

Indonesian Petroleum Association

... proved accurate compared to conventional gauging and testing unit in station. It had 0.35% deviation in gross liquid rate Coriolis compared to tank...

The Distribution and Seismic Prediction of Beach Bar Sandbodies in Narrow and Elongate Lacustrine Basin - A Case from Es2 in Chezhen Depression in the East of China; #50641 (2012)

Xia (Rose) Luo

Search and Discovery.com

... sediments particle size Water power The larger standard deviation，the greater environmental changes of the particles produced. Data dispersion tendency...

STAR--Structural Analogues for Reservoirs, by Fault Dynamics Research Group, #40264 (2007).

Search and Discovery.com

Estimated Stored Heat in the Clarence-Moreton Basin, New South Wales: A Case Study in Reducing Uncertainties in Thermal Modelling

M. W. Haynes

Petroleum Exploration Society of Australia (PESA)

... Coal Measures Conclusions Standard Deviation (Wm-1K-1) Upper Sediments up to ±2.5°C and a standard deviation of up to ±23°C (Fig. 4). Applying...

Size Analysis of Silt and Clay by Hydrophotometer

Clifton F. Jordan, Jr., Glenn E. Fryer, Elze H. Hemmen

Journal of Sedimentary Research (SEPM)

... as the standard deviation of phi percentiles of the cumulative curve is 0.11 , whereas that of the pipette method is 0.45 . Precision of both methods...

Assessment of Shuttle Radar Topographic Mission (SRTM) Elevation Data of Lojing and Hulu Langat, Peninsular Malaysia

Ng Tham Fatt

Geological Society of Malaysia (GSM)

... channels (Figure 8). The accuracy of the SRTM data is better in Hulu Langat where the standard deviation of the difference in elevation is 13.6 m...

Induced polarization chargeability calibration standards

John E. E. Kingman, Terry J. Ritchie, Peter Rowston*

Petroleum Exploration Society of Australia (PESA)

... of the signal energy spanning one period is directly proportional to the standard deviation of the signal spanning an integer number of periods, which is also...

Relation of Textural (CM) Patterns to Depositional Environment of Alluvial-fan Deposits

William B. Bull

Journal of Sedimentary Research (SEPM)

... of the water-laid sediments are as well sorted as beach sand. One sand has a Trask sorting coefficient (So) of 1.1, a phi standard deviation () of 0.48...

Abstract: Mapping Brittleness and Stress; #90224 (2015)

Marco A. Perez

Search and Discovery.com

...) in this case. The average and standard deviation of volumes of clay quartz and limestone are computed. The standard deviation is evidence that the same...