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The AAPG/Datapages Combined Publications Database
Showing 54 Results. Searched 195,387 documents.
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Acquisition and Ananlysis of Wide-Angle Reflection and Refraction Seismic Data
Paul L. Stoffa
Circum Pacific Council Publications
..., one ship assumes control over the shooting and receiving functions of both ships (Figure 11). If a good, reliable intership radio link is provided...
1989
Quantifying Total Apparent Hydraulic Fracture Conductivity and Its Significant Degradation from Systematic Bottom-Hole Pressure Measurements in Permian Wells
Lang Zhan, Adenike Tokan-Lawal, Phillip Fair, Robert Dombrowski, Xin Liu, Veronica Almarza, Alejandro Girardi, Zhen Li, Robert Li, Martin Pilko, Noah Joost
Unconventional Resources Technology Conference (URTEC)
... fracture within a homogenous formation: = √ √ √ (1) where, Ko and K1 are the modified zero and first order Bessel functions of the 2nd kind, and z...
2019
Assessing spatial uncertainty in reservoir characterization for carbon sequestration planning using public well-log data: A case study
Erik R. Venteris, Kristin M. Carter
Environmental Geosciences (DEG)
... variogram functions as well; a spherical model was used for all because exponential and k-Bessel variogram models did not improve the results...
2009
Quantitative Electric Log Interpretation of "D" and "J" Sands-Denver Basin
J. Grynberg
Rocky Mountain Association of Geologists
.... These equations are various Bessel functions, which will not be discussed in this paper. However, we can define the short normal apparent resistivity, R...
1956
Rate Transient Analysis of Fracture Swarm Fractal Networks
Jorge A. Acuña
Unconventional Resources Technology Conference (URTEC)
...−𝛿𝛿) √𝑧𝑧 Where 𝐼𝐼 𝛿𝛿 ( 𝑥𝑥 ) and 𝐾𝐾𝛿𝛿 ( 𝑥𝑥 ) are the modified Bessel functions of the first and second kind respectively. For radial flow, the limit...
2020
How to Design Onshore Pipeline Under Coal Seam Area
Yohanes Kristianto, Redo Waworuntu, Muhdi Sujatmiko, Wawan Gunawan
Indonesian Petroleum Association
... Zone 48, Datum Djakarta (Batavia), Bessel 1841) 325000 320000 315000 SUBAN#5 SUBAN#7 SUBAN#3 A' 9720000 A 9720000 SUBAN#2 SUBAN#6 SUBAN#4...
2010
Size Analysis of Fine-grained Suspended Sediments: A Review
Donald J. P. Swift , J. R. Schubel, Raymond W. Sheldon
Journal of Sedimentary Research (SEPM)
.... These parameters are related by means of Bessel functions to produce a series which converges rather slowly for particles as large as several...
1972
Some Inference Problems in Paleocurrent Studies
David J. Sanderson
Journal of Sedimentary Research (SEPM)
...(k) (1) where I0() is a bessel function with an imaginary argument. The distribution involves two statistics, which is the mean direction and , which...
1973
Water Influx Predictions in Reservoirs with Aquifer Drive Using the Two-Phase Reservoir Integral Type Pseudo-Pressure with Applicability in Gas Hydrate Reservoirs; #42006 (2017)
Melvin Kome, Mohd Amro
Search and Discovery.com
.... 595-609. [Io(z)] - The Wolfram Function Site, Integral of Modified Bessel Function of the First Kind. Website accessed February 5, 2017. http...
2017
Abstract: The Effects of Fluid Viscosity on Seismic Response: A Model Study; #90171 (2013)
Fereidoon Vasheghani, Larry Lines, and Joan Embleton
Search and Discovery.com
... of quality factor, is given by (Dvorkin et al, 1994): (3) where in the above (4) (5) (6) (7) (8) In these equations, J denotes a Bessel function...
2013
Three-Dimensional Numerical Modeling of Deltas
Irina Overeem, James P.M. Syvitski, Eric W.H. Hutton
Special Publications of SEPM
... alluvial sediments: Sedimentology, v. 5, p. 89–101. AMOS, D.E., 1986, ALGORITHM 644: a portable package for Bessel Functions of complex argument...
2005
Estimation of In-Situ Wettability using Multi-Frequency Electromagnetic Measurements
Yuteng Jin, Siddharth Misra, Dean Homan
Unconventional Resources Technology Conference (URTEC)
... assume Bond number is small, where gravity force is negligible. 𝐾𝐾0 and 𝐾𝐾1 is modified Bessel function of the second kind of order 0 and 1...
2020
Solid substitution: theory versus experiment
Yongyang Sun, Maxim Lebedev, Vassili Mikhaltsevitch, Stanislav Glubokovskikh, Stefan Iglauer, Boris Gurevich
Petroleum Exploration Society of Australia (PESA)
...) −𝝁 𝒇 , 𝛼 = 𝑟/ℎ is an inverse aspect ratio, and 𝐼 𝑘 denotes a modified Bessel function of the first kind and of the order 𝑘. Octodecane experiment...
2018
Abstract: Physical Modeling for Azimuthal AVO Over a Simulated Fractured Medium; #90174 (2014)
Faranak Mahmoudian, Gary F. Margrave, and Joe Wong
Search and Discovery.com
... to the emitting plane, is the angle to the vertical axis, and J1 is the Bessel function of order 1. The directivity equation as in equation (1...
2014
Abstract: Building Better Models Making Full Use of Petrophysical Data; #90211 (2015)
Elizabeth L’Heureux
Search and Discovery.com
... is the modified Bessel function of the second kind of order ν. Initial estimates of the Hurst number can be obtained from the slope of the power spectrum...
2015
Shallow Conduit Behavior of Silicic Magma Chambers: A Detailed Thermal Model; #40949 (2012)
Cathina Gunn de Rosas and Glen Mattioli
Search and Discovery.com
... is given by” equation 3 (Denlinger & Hoblitt, 1999). “where a1 is the first root of the Bessel function J0, and J1 is the derivative of J0...
2012
Permeability from NMR in the Unconventional Point-Pleasant Formation
Xinglin Wang, Philip M. Singer, Yunke Liu, Zeliang Chen, George J. Hirasaki, Zheng Yang, Scott J. Seltzer, Boqin Sun, Marcus O. Wigand, Jon E. Burger
Unconventional Resources Technology Conference (URTEC)
..., and: ∞ 𝐶 𝑐𝑦𝑙 = ∑ 𝑛=1 4 4𝐷∞ 𝛼 2 𝑛 𝑒𝑥𝑝 (− 𝑡) 2 2 𝑑 𝛼𝑛 where 𝛼 𝑛 are the positive roots of the Bessel function of the first type of order zero...
2021
Pressure Transient Behaviour of Naturally Fractured Reservoirs
Doddy Abdassah
Indonesian Petroleum Association
... model, ft ht = Total thickness, ft k = Permeability, md K0 = Modified Bessel function of the second kind, zero order K1 = Modified Bessel...
1985
Can Storage Coefficient Be Neglected in the Estimation of Unconfined Aquifer Parameters?
Xunhong Chen
Environmental Geosciences (DEG)
... of thedimensionless variables in equation (1) are z' = –z/D,r' (Kz/Kr)1/2, t' = tKz/SyD, l' = l/D, l'3 = l3/D. J0 is thezeroorder Bessel function of the first kind...
2000
An Assessment of Analytical Techniques For The Size Analysis of Fine-Grained Sediments
J. K. Singer , J. B. Anderson, M. T. Ledbetter, I. N. McCave, K. P. N. Jones, R. Wright
Journal of Sedimentary Research (SEPM)
...; r is the particle radius; n(r) is the size distribution function; k = 2/, being 633 nm here; and J is the Bessel function of the first kind. Having...
1988
Statistical Characterization of Grain-Size Distributions in Sandy Fluvial Systems
Elizabeth A. Hajek, Snehalata V. Huzurbazar, David Mohrig, Ranie M. Lynds, Paul L. Heller
Journal of Sedimentary Research (SEPM)
...-hyperbolic probability density function for x as the natural log of grain size is given by for x ε R, where K1(.) is the modified Bessel function...
2010
PROYECCIÓN CARTOGRAFICA PARA PETRÓLEOS MEXICANOS (IN SPANISH) Cartographic Projection for Mexican oils
Jorge Caire Lomeli
Boletín de la Asociación Mexicana de Geólogos Petroleros (AMGP)
... terrestre; y así se tienen los seis principales elipsoides: Clarke de 1866, Clarke de 1880, Everest, Bessel, Interna cional y el de Clarke de 1858. ( V e r...
1974
A Methodology to Quantify the Volume-of-investigation in DFIT Design for Shale Gas Wells
Zhiming Chen, Hongyang Chu, Xuefeng Tang, Lingyu Mu, Peng Dong, Jiali Zhang, Haoshu Chen
Unconventional Resources Technology Conference (URTEC)
... in the hydraulic fracture; K 0 ( x ) is the modified Bessel function of the second kind; θ is the azimuth of hydraulic fracture; l refers to the integral domain...
2019
Parameter Estimations of Complex Fracture Networks Using Pressure Transient Analysis in Fracturing-shutting Data from Shale Oil Wells
Zhiming Chen, Luming Shi
Unconventional Resources Technology Conference (URTEC)
... s s ( ) where K 0 ( x ) is modified second class, zero order Bessel function. Using superposition principle, the pressure at each facture vertex caused...
2020
The Comparative Reliability of Magnetic, Photometric and Microscopic Methods of Determining the Orientations of Sedimentary Grains
Asahiko Taira, Barry R. Lienert
Journal of Sedimentary Research (SEPM)
.../[I0 (k)] (3) where is a circular random variable, K is concentration parameter and Io(K) is the modified Bessel function of the first kind and order...
1979
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