Direct Diffractometric Quantitative Analysis of Synthetic Clay Mineral Mixtures with Molybdenite as Orientation-Indicator: NOTES

Joost Quakernaat

Journal of Sedimentary Research (SEPM)

... for chlorite, vermiculite and pyrophyllite were accurate to within about 10%. ALEXANDER, L. E. AND KLUG, H. P., 1948, Basic aspects of x-ray...

The Influence of Stratigraphy and Rock Mechanics on Mesaverde Gas Distribution, Piceance Basin, Colorado

Stephen P. Cumella, Jay Scheevel

AAPG Special Volumes

... in reserves of about 60120 bcf per section (1 mi2; 2.5 km2). The depth limits to the commercial gas accumulation are poorly defined, but it is possible...

Antidunes on Modern and Ancient Washover Fans

John H. Barwis, Miles O. Hayes

Journal of Sedimentary Research (SEPM)

...) are flowdependent; and washover flows vary in depth, velocity, and duration. We observed the Seabrook fan under flow conditions only once, and during...

Seismic applications of the Radon transform and a new second-order traveltime local transform

Ehsan Soleymani, Mauricio Sacchi

International Meeting for Applied Geoscience and Energy (IMAGE)

... seismology, the Radon transform has been used in different forms. For instance, the linear Radon transform, called the Slant Stack transform, can synthesize...

Tensile radiation from slip in a medium with rough fractures

Scott Leaney, Chris Chapman

International Meeting for Applied Geoscience and Energy (IMAGE)

... the stiffness tensor 𝒄 is composed of a background medium with a single set of vertical fractures. Using linear slip theory (Schoenberg, 1980...

VTI anisotropic stiffness tensor logging: A case study

Kristoffer Walker, Alexei Bolshakov, Gama Firdaus, Tim Fischer, Luca Duranti, Luisa Crousse, Mason Edwards

International Meeting for Applied Geoscience and Energy (IMAGE)

... a linear trend over the processed depth interval (Figure 3, track 4, black dots). The linear trend was used to interpolate mud slowness between...

Natural Gamma-Ray Spectrometry of the Monterey Formation at Naples Beach, California: Insights into Lithology, Stratigraphy, and Source-Rock Quality

Kevin M. Bohacs, Jon R. Schwalbach

Pacific Section of AAPG

... to predict TOC from uranium concentrations measured by the gamma-ray spectrometer. Based on linear regression analysis, the best fit equation...

High Sensitivity Aeromagnetometry in Indonesia: 1967 - 1972

G. Royer

Indonesian Petroleum Association

... ITI gamma method) Special processing: non-linear filtering upward continuation of the total magnetic field vertical gradient automatic...

Abstract: Lithofacies Prediction from Seismic, One Step at a Time: An Example from the McMurray Formation Bitumen Reservoir at Surmont; #90171 (2013)

Matt Hall

Search and Discovery.com

..., and thus production. Very-high-resolution seismic data are independent of well data and provide information about lithofacies. A linear combination...

Stratigraphic Correlation of Well Logs by Computer Techniques

Albert J. Rudman , Robert W. Lankston

AAPG Bulletin

... by means of logs measuring such physical properties as electrical resistivity, spontaneous potential, seismic velocity, or radioactivity. In practice...

Nonparametric Bayesian approach for robust depth uncertainty estimation from seismic velocity and anisotropy tradeoffs

Jinsong Chen, Sizhuang Deng, Min Yang, Andrey Shabelansky, Cory Hoelting, Huafeng Liu, Maisha Amaru

International Meeting for Applied Geoscience and Energy (IMAGE)

...Nonparametric Bayesian approach for robust depth uncertainty estimation from seismic velocity and anisotropy tradeoffs Jinsong Chen, Sizhuang Deng...

X-Ray Determination of Calcite-Dolomite: an Evaluation

C. F. Royse, Jr., J. S. Wadell, L. E. Petersen

Journal of Sedimentary Research (SEPM)

... by the four types of peak-intensity measures. A simple linear regression program was used to obtain the equation of best fit and the standard error...

Difference in overpressure environments for the western and central deep-water Gulf of Mexico

Sharon Cornelius and Peter A. Emmet

AAPG Bulletin

... velocity section from which a velocity versus depth plot can be derived (Shykhaliyev et al., 2010). Many terms are used describe subsurface pressure...

Determination of Density from Seismic Data; #42456 (2019)

Ritesh Kumar Sharma, Satinder Chopra

Search and Discovery.com

... ray curves (lithology indicator) or petrophysical properties, such as porosity and water saturation, compared with P-wave velocity. Usually...

Porosity Logs: Chapter IV

George B. Asquith, Charles R. Gibson

AAPG Special Volumes

... reservoirs (Fig. 32; depth 9,328 ft)--the following formula should be used to determine neutron-density porosity: [EQUATION] Where: N-D = neutron...

Design Support for Texaco CO2 Flooding Projects

R. L. Gardenas, A. J. Nute

Indonesian Petroleum Association

... also of importance because of the method used to calculate the critical velocity of the advancing front. This equation has already been discussed...

Reservoir Characterization of the Bakken Petroleum System - A Regional Data Analysis Method (Phase I of II)

Kaushik Gangiredla, Donald Westacott

Unconventional Resources Technology Conference (URTEC)

... of the ρb 95th percentile. The resulting quadratic trend surface equation is used to calculate a linear residual that is applied to the density data...

Well to Seismic Ties Modeling with the Adaptive Log Analysis, #40823 (2011)

Ivan S. Deshenenkov, Dmitry A. Kozhevnikov, Kazimir V. Kovalenko

Search and Discovery.com

... contact author directly. velocity and density; the second one is carried out using adaptive model with spontaneous potential (SP) log, gamma-ray (GR) log...

Complex mountainous stepwise tomographic inversion modeling method

Haili Wang, Yongguo Wu, Weibo Li, Zhihui Yan, Li He, Baohua Yu

International Meeting for Applied Geoscience and Energy (IMAGE)

... and the error caused by large ray depth on the shallow surface velocity of inversion have not been considered. In addition, the deeper velocity...

Abstract: Detailed Outcrop Gamma-Ray Characterization of the Woodford Shale, South-central Oklahoma, by Alischa M. Krystyniak, Stanley T. Paxton, and William S. Coffey; #90039 (2005)

Search and Discovery.com

Limitations on Resolution of Seismic Reflections and Geologic Detail Derivable from Them: Section 1. Fundamentals of Stratigraphic Interpretation of Seismic Data

Robert E. Sheriff

AAPG Special Volumes

... exploration are in the general range of 30 to 300 m. Wavelength generally increases with depth because: (1) velocity increases, and (2) frequencies become...

Abstract: Microseismic Event Locations for Deviated Boreholes; #90187 (2014)

Amna Feroz and Mirko van der Baan

Search and Discovery.com

... density and orientations) and physical quantities (velocity, impedance and density).In order to understand the geomechanical changes occurring...

Long Offset AVO in a Midcontinent Tight Gas Sand Reservoir

Pankhurst, Duane, Marfurt, Kurt, Sullivan, Charlotte

GCAGS Transactions

... in terms of rock physics. A cross-plot of gamma-ray response and p-wave velocity impedance indicated that the reservoir sands have higher impedance than...

Automatic Lithofacies Segmentation Using the Wavelet Transform Modulus Maxima Lines WTMM Combined with the Detrneded Fluctuation Analysis DFA

S. Ouadfeul

Asociación Colombiana de Geólogos y Geofisicos del Petróleo (ACGGP)

..., the step of sampling is equal to 0.125. The first operation consists in removing the deterministic part which is considered linear according to the depth...

Abstract: Velocity Model Calibration Effects on Microseismic Locations; #90187 (2014)

J. Akram and D. W. Eaton

Search and Discovery.com

... ray-tracer. As suggested by Warpinski et al., (2009), an anisotropic ray-tracer should be used in the velocity model calibration and building look-up...