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Showing 65 Results. Searched 200,293 documents.
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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
Integrated Quantification of Immobile and Producible Fluids from Nuclear Magnetic Resonance (NMR) T1-T2 Log and Multi-Physics Core Measurements
Tianmin Jiang, Hesham El-Sobky, Bairta V. Biurchieva, Scott J. Jacobsen, Austin Bertoch
Unconventional Resources Technology Conference (URTEC)
... is the diffusivity of H2O/D2O in the rock; and αn are the positive roots of the Bessel function of the first type of order zero. If multiple values of diffusivity...
2025
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
Extrapolated surface-wave dispersion inversion
Hongyu Sun, Laurent Demanet
International Meeting for Applied Geoscience and Energy (IMAGE)
... curves in the frequency-Bessel dispersion spectrum: Bulletin of the Seismological Society of America, 111, 3420–3431. Dorman, J., and M. Ewing, 1962...
2022
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
Statistical Estimation of the Position of An Apex: Application To the Geological Record
Amanda Owen,, Peter E. Jupp, Gary J. Nichols,,† Adrian J. Hartley, Gary S. Weissmann, Dinara Sadykova
Journal of Sedimentary Research (SEPM)
...°) represents the mean direction at the th site, (with 0 ) is a measure of concentration about , and (·) is the modified Bessel function of the first kind...
2015
Rate Transient Analysis of a Multi-Horizontal-Well Pad with a Semi-Analytical Method
Hongyang Chu, Xinwei Liao, Zhiming Chen, W. John Lee
Unconventional Resources Technology Conference (URTEC)
... ∂rD rD drD (1) URTeC 2572 5 r where u is the Laplace variable, D is the dimensionless radial distance, and pressure. Eq. (1) is a Bessel equation...
2020
A Porothermoelastic Model Considering the DynamicTemperature-Perturbation Boundary Effect for Borehole Stability in Fractured Porous Rocks
Jiajia Gao, Hai Lin, Jin Sun, Xiuping Chen, Huixiang Wang, Xianfeng Liu
Unconventional Resources Technology Conference (URTEC)
...( ) is the modified Bessel function of the second kind of order n, herein n=0. The parameters ξT and βT are defined as , with the depth T0 = Az + B0...
2021
Bibliografia Mexicana De Geologia Y Geofisica (Un Apoyo A La Exploracion Petrolera). IN SPANISH. Bibliography of Mexican Geology And Geophysics (Support For Petroleum Exploration).
AMGP
Boletín de la Asociación Mexicana de Geólogos Petroleros (AMGP)
... O . 3 - 4 , P. 1 0 5 - 1 1 5 . FLORES COVARRUBIAS, LUIS, 1962, APLICACIÓN D E L A S FUNCIONES D E BESSEL-LOUIVILLE E N LA EXPLORACIÓN GEO-ELECTRICA...
1998
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