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The AAPG/Datapages Combined Publications Database
Showing 1,247 Results. Searched 200,619 documents.
Grain-Size Analyses of Mica Within Sediments and the Hydraulic Equivalence of Mica and Quartz
Paul D. Komar, Jumpei Baba, Bingquan Cui
Journal of Sedimentary Research (SEPM)
... in Figure 1B, the summation accounting for their percentages (one-half of the rock fragments were assumed to behave as mica, one-half as quartz...
1984
Drainage Analysis in Geologic Interpretation: A Summation
Arthur David Howard
AAPG Bulletin
...Drainage Analysis in Geologic Interpretation: A Summation Arthur David Howard 1967 2246 2259 51 11. (November) Drainage analysis is useful...
1967
Evaluation of a Simple Model of Vitrinite Reflectance Based on Chemical Kinetics (1)
JERRY J. SWEENEY and ALAN K. BURNHAM
AAPG Bulletin
... temperature T(t), dw[i]/dt = -w[i]Aexp[-E[i]/RT(t)} (Equation 3; SEE PAGE IMAGE) and dw/dt = summation[i] dw[i]/dt (Equation 4; SEE PAGE IMAGE...
1990
Fit-for-Purpose Log Conditioning as Applied on the F-A Gas Field in the Bredasdorp Basin, Offshore South Africa; #42339 (2019)
Abdullah Jawoodien
Search and Discovery.com
... for clay between velocity and bulk density and do a proportional summation of the results to correct RHOB. Pros/Cons 1. Sonic correction considers...
2018
Application of Electrical Resistivity Measurements to Problem of Fluid Flow in Porous Media
M. R. J. Wyllie , M. B. Spangler
AAPG Bulletin
.... But the total quantity of fluid flowing through the porous medium, Q, may be considered as the summation of the all-flowing elements, ^DgrQ, contributed...
1952
The Three Elements of Structural Geology, #41849 (2017).
Terry Engelder
Search and Discovery.com
... is also known as a torque t which is a vector quantity. Einstein Summation using Heat flow, q (cal cm-2 sec-1), in homogeneous, isotropic rock...
2017
The Utilization of the "Rate-Integral" to Assist with Decline Curve Analysis of Poor-Quality Unconventional Time-Rate Data
E. W. Bryan, D. Symmons, D. Ilk, T. A. Blasingame
Unconventional Resources Technology Conference (URTEC)
... ................................................................ (A.19) = 2 ˆ 1/ n n dt Di t Distributing the partial derivative over the summation term in Eq. A.19: ˆ dqint (t ) qi = 1/ n ˆ dt Di n é1 ˆ ù é 1...
2021
Anatomy of a Flysch
Paul Enos
Journal of Sedimentary Research (SEPM)
... orthodoxy, is vector summation (see Pincus, 1953; 1956). The mean, , is given by = arctan [ sin xi]/[ cos xi]· It is apparent that this mean...
1969
The Louann Salt and Its Relationship to Gulf Coast Salt Domes
Donald I. Andrews
GCAGS Transactions
... a summation of theories and conclusions reached by workers through the years. Also included herein are numerous thoughts and ideas that have been...
1960
RESOLVING THREE-DIMENSIONAL AND SUBSURFICIAL FEATURES OF CARBONACEOUS COMPRESSIONS AND SHELLY FOSSILS USING BACKSCATTERED ELECTRON SCANNING ELECTRON MICROSCOPY (BSE-SEM)
A.D. MUSCENTE, SHUHAI XIAO
PALAIOS
... microscope Solid state detector BSE image acquired via digital summation of signals from SSD arrays; predominant compositional contrast BSE image...
2015
Late Cretaceous, Paleocene, and Early Eocene Paleogeography of the Bighorn Basin and Northwestern Wyoming
David Seeland
Wyoming Geological Association
... by Wells (1988). The mean dip-direction of the crossbedding at each locality (the mean paleocurrent direction) was calculated by the vector summation...
1998
Borehole Magnetostratigraphy, Absolute Age Dating, and Correlation of Sedimentary Rocks, with Examples from the Paris Basin, France
Patrick M. Bouisset , Antoine M. Augustin
AAPG Bulletin
... of symbols and acronyms.) The total in-hole magnetic field (Bt) is defined as the vector summation of B^primei, B^primer, and Bo (geomagnetic field...
1993
Variations in Water Content in Opal-A and Opal-CT from Geyser Discharge Aprons
Rachel Day, Brian Jones
Journal of Sedimentary Research (SEPM)
... Geyser complex. Component bands 1 + 2 and 3 + 4 represent Type A and B molecular water, respectively. Summation of component bands has R2 > 0.999. C...
2008
Analytical Model for History Matching Drawdown & Buildup Cycles of Multi-Fractured Horizontal Wells Experiencing Multiple Operational Upsets
Bin Yuan, Zhenzihao Zhang, Christopher R. Clarkson, Samane Moghadam, Hamidreza Hamdi, Amin Ghanizadeh
Unconventional Resources Technology Conference (URTEC)
... be obtained by applying the superposition of all the previous (n-1) transients, that is the summation of Eq. A-8 (j=2, 3 …n-1) and Eq. A-11: (A-12...
2019
Application of Quartz Sand Microtextural Analysis to Infer Cold-Climate Weathering for the Equatorial Fountain Formation (Pennsylvanian–Permian, Colorado, U.S.A.)
Dustin E. Sweet, Gerilyn S. Soreghan
Journal of Sedimentary Research (SEPM)
... abundances of polygenetic, high-stress, and percussion fractures. Percentages represent the summation of times that microtextures in their respective...
2010
Assessment of Rate Normalization and Pressure Deconvolution Techniques to History-Match and Forecast Production of Tight-Oil Reservoirs Using a Physics-Based Rate-Time Model
Leopoldo M. Ruiz Maraggi, Larry W. Lake, Mark P. Walsh
Unconventional Resources Technology Conference (URTEC)
... pressure drop times the unit-pressure-drop rate qup plus the summation of the change in the pressure drop with time (perturbations) multiplied...
2021
Morphological and Stratigraphical Signature of Floods In A Braided Gravel-Bed River Revealed From Flume Experiments
W. I. Van De Lageweg, W. M. Van Dijk, M. G. Kleinhans
Journal of Sedimentary Research (SEPM)
..., or core occupation space as a function of the survey interval. This occupation space is calculated by summation of the individual set thicknesses for every...
2013
Rock-Fluid Interaction Impact on Geomechanical and Acoustic Properties in Shale Reservoirs: Anisotropic Grain Contact Adhesion Model
Binh T. Bui, Azra N. Tutuncu
Unconventional Resources Technology Conference (URTEC)
... into the model by introducing another component of normal stiffness called gap stiffness. The normal effective stiffness is then the summation of the dry...
2014
Some Speculations on the Genetic Geochemistry and Hydrology of Roll-Type Uranium Deposits
H. C. Granger, C. G. Warren
Wyoming Geological Association
... rocks today are almost certainly, therefore, not universally representative of conductivities that existed soon after their deposition. The summation...
1978
Analytical Pressure and Rate Transient Models for Analysis of Complex Fracture Networks in Tight Reservoirs
Jorge A. Acuña
Unconventional Resources Technology Conference (URTEC)
... fractures, the pressure transient response can be analyzed as a vertically fractured with half-length equal to the summation of the half-length...
2016
The Use of Computer Prepared Residual Maps as an Aid in Determining Sedimentary Environments of the Muddy Formation, Northeastern Wyoming
R.L. Egbert, E.F. Armstrong
Rocky Mountain Association of Geologists
... is the algebraic summation of the deviations from the algebraic of the f r o m the Isopachous m a p s show by m e a n s of conmaps means t o u r...
1970
Quantifying the Mechanisms Contributing to Surface Relaxation of Protons in Kerogen Pores of Organic-Rich Mudrocks
Saurabh Tandon, Zoya Heidari, Archana Jagadisan
Unconventional Resources Technology Conference (URTEC)
... of pores. The double summation term in Eq. 7 shows that the relaxation time is a function of the configuration of protons in the adsorbed molecule...
2018
Validating Conductive Fracture Imaging With Cross-well Strain and Permanent Fiber Optic Flow Profiling
Scott Taylor, Anton Reshetnikov, Anna Nazarova
Unconventional Resources Technology Conference (URTEC)
... complete isochrone. The right panel of Figure 1 shows imaging process of Fresnel Volume Migration. Dotted line represents Kirchhoff summation surface, blue...
2023
Problems Frequently Encountered in Evaluating Tar Sand Resources--The South Texas San Miguel Deposit: Section V. Exploration Histories
M. W. Britton
AAPG Special Volumes
... to evaporation or whatever. Therefore, it is very likely that a summation-of-fluids analysis will lead to incorrect saturation and porosity values...
1987
Mineral Reactions and Controls on Zeolite-facies Alteration in Sandstone of the Central Transantarctic Mountains, Antarctica
Charles L. Vavra
Journal of Sedimentary Research (SEPM)
... replaces detrital grains and matrix. Microprobe analyses of this chlorite are characterized by low summation of weight percent oxides due to pore space...
1989