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Keywords: statistics
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Proceedings Papers

Paper presented at the SPWLA 59th Annual Logging Symposium, June 2–6, 2018
Paper Number: SPWLA-2018-PPP
...SPWLA 59 th Annual Logging Symposium, June 2-6, 2018 1 COST/TIME EFFECTIVE LOCAL ROCK PROPERTIES PREDICTION BY X-RAY INTERACTIONS STATISTICS Carlos A. Santos M., Pedro R. Fernandez D., Hector J. Gonzalez P. Repsol Technology Center Copyright 2018, held jointly by the Society of Petrophysicists...
Proceedings Papers

Paper presented at the SPWLA 57th Annual Logging Symposium, June 25–29, 2016
Paper Number: SPWLA-2016-OOO
... well logging machine learning flow in porous media water saturation Upstream Oil & Gas leverett-j model statistics spwla 57thannual reservoir mean difference saturation saturation-height function Artificial Intelligence adams field capillary pressure dataset Johnson capillary...
Proceedings Papers

Paper presented at the SPWLA 53rd Annual Logging Symposium, June 16–20, 2012
Paper Number: SPWLA-2012-195
... of this study employ multi-point statistics (MPS) and representative element volumes (REV‟s). MPS is a geostatistical modeling approach that creates simulations of spatial geological and reservoir property fields, conditioned to honor known results, such as those measured in wellbores or rock samples. REV‟s...
Proceedings Papers

Paper presented at the SPWLA 47th Annual Logging Symposium, June 4–7, 2006
Paper Number: SPWLA-2006-OO
... Copulas are a new way of modeling the correlation structure between variables. Over the past forty years copulas have played an important role in several areas of statistics. But, only recently copulas have become popular in simulation models. Copulas are geological modeling well logging...
Proceedings Papers

Paper presented at the SPWLA 35th Annual Logging Symposium, June 19–22, 1994
Paper Number: SPWLA-1994-O
..." diameters). This technique provides good response to desired formation parameters with good statistical precision despite the limitations of the one-inch diameter NaI detector. The oxygen and carbon measures when integrated with Pulsed Neutron Capture (PNC) data can provide a more comprehensive description...
Proceedings Papers

Paper presented at the SPWLA 33rd Annual Logging Symposium, June 14–17, 1992
Paper Number: SPWLA-1992-T
.... background spwla 33rd sandstone carbonate well logging vug log analysis contour area percentage information diameter statistics Upstream Oil & Gas heterogeneity porosity gradient image image analysis fracture gray-scale image Symposium electrical image connectedness transformation...
Proceedings Papers

Paper presented at the SPWLA 29th Annual Logging Symposium, June 5–8, 1988
Paper Number: SPWLA-1988-U
... ABSTRACT Log measurements are recorded in the presence of noise statistics, etc. The industry has for decades suppressed the noise and statistics through the use of averaging schemes. Averaging effectiveness is derived from the principle that over an interval, noise or statistics will average...
Proceedings Papers

Paper presented at the SPWLA 27th Annual Logging Symposium, June 9–13, 1986
Paper Number: SPWLA-1986-CC
...SPWLA TWENTY-SEVENTH ANNUAL LOGGING SYMPOSIUM, JUNE 9-13,1986 STATISTICAL PRECISION OF NEUTRON-INDUCED GAMMA RAY SPECTROSCOPY MEASUREMENTS B. A. Roscoe Schiumberger Weii Services J. A. Grau Schh.imberger-DollResearch P. D. Wraight Schlumberger Well Services ABSTRACT With the increased use...
Proceedings Papers

Paper presented at the SPWLA 27th Annual Logging Symposium, June 9–13, 1986
Paper Number: SPWLA-1986-O
... statistics of the random process of which the actual formation travel time is a sample function. This requirement of statistical knowledge of the sample process is common to algorithms derived using estimation theory. The Bayless and Brigham article applies Kalman filtering theory to solve the inverse...
Proceedings Papers

Paper presented at the SPWLA 26th Annual Logging Symposium, June 17–20, 1985
Paper Number: SPWLA-1985-TT
... lithofacieszonationfor each of the five wells. Seventexturaland mineralogicalparameterswere used. However, becauseof the lossor lackof cores,thereis a needto performthis zonationin a more indirectway by meansof wirelinelogs. Statistical classificationtheoryis a usefulmethodologyto explorethe extentto whichwirelinelogs...
Proceedings Papers

Paper presented at the SPWLA 25th Annual Logging Symposium, June 10–13, 1984
Paper Number: SPWLA-1984-KK
... analytical tools for identifying the relationship between a response variable and an explanatory variable, for efficient estimation of the parameters in the tentative model, and for checking different aspects of fitting the data to the model. The selected statistical procedures have nice graphical properties...
Proceedings Papers

Paper presented at the SPWLA 15th Annual Logging Symposium, June 2–5, 1974
Paper Number: SPWLA-1974-A
... at the well site. An example of a Quality Control Form to be completed by the service company representative at the time of logging is presented. A statistical comparison of the data by geographic area and service company is discussed. INTRODUCTION Early in 1971, a format for a Quality Control Form...

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