Horizontal Drilling of the Cardium Sands, within the Pembina Field, Drayton Valley, Alberta - How to Circumvent a Thief Zone

I. Cooke, K. Gee, A. Bessel

CSPG Special Publications

..., A. Bessel 1995 216 216...

AVO Modeling of Monochromatic Spherical Waves: Comparison to Band-Limited Waves; #41567 (2015)

Charles Ursenbach, Arnim Haase

Search and Discovery.com

... that monochromatic waves have oscillatory, non-decaying weighting functions, and thus sample a wide range of plane waves. In contrast, typical Rayleigh wavelets...

Abstract: Modelling Near-field Effects in VSP-based Q-estimation Part 1: Theoretical Developments; #90171 (2013)

Arnim B. Haase and Robert R. Stewart

Search and Discovery.com

... is the horizontal slowness, ξ is the vertical slowness, J0 and J1 are zero-order and first-order Bessel functions of the first kind, r is the range...

Integral equation based wellbore preconditioner for 3D electromagnetic response modeling

Marcus Elliott, Mark Everett

International Meeting for Applied Geoscience and Energy (IMAGE)

... Bessel functions. We extracted the modified Bessel function values using a MatLAB code containing 1331201 interpolation points and stored them within...

Spherical Wave Model Tests of VSP-Based Q-Estimation Techniques

Search and Discovery.com

... Bessel functions of the first kind, r is the range (horizontal offset between source and receivers), and in is the ray angle in layer n (at the current...

Application of New Type Curves Using Fractal Concept for Analyzing the Interference Test Data in Dieng Geothermal Reservoir

Doddy Abdassah, I. Nengah Suabdi, Leksono Mucharam, R. Sumantri

Indonesian Petroleum Association

...) are modified Bessel functions of the second kind of order (v+1) and (v), respectively. Equation (8) above is developed by involving several assumptions...

Wellbore Heat Transmission: A Simple Solution Technique

A. J. Durrant, R. K. M. Thambynayagam

Indonesian Petroleum Association

... equations, enabling Ramey to give the following correlations for the temperature of the injected fluid/gas as functions of time t and depth Z. Liquid Gas...

Pebble Orientation in Relation to Cross-Stratification a Statistical Study: NOTES

Shibdas Bandyopadhyay

Journal of Sedimentary Research (SEPM)

...)] if the density function of , f() is given by f(a) = [exp k cos (a - v)]/[2·I0(k)] 0 <= < 2 where 0<=v2, 0<=k< and I0(k) is a Bessel function of purely...

Statistical Analysis of Orientation Data

Thomas A. Jones

Journal of Sedimentary Research (SEPM)

.... Sedimentary Petrology, v. 33, p. 393-410. BOWMAN, FRANK, 1958, Introduction to Bessel functions. Dover Publications, Inc., New York, 135 p. CURRAY, J. R...

Extended Abstract: Water Influx Predictions in Reservoirs with Aquifer Drive Using the Two-Phase Reservoir Integral Type Pseudo-Pressure with Applicability in Gas Hydrate Reservoirs

Melvin Kome, Mohd Amro

Africa Energy and Technology Conference, 2016

......A4: 1 The Laplace transform of the above equation in combination with the Schapery representation gives: 12 ̂ ∂2 [pφD ] ∂rD 2 + ̂ 1 ∂[pφ...

Seismic Modeling of Reservoir Heterogeneity Scales: An Application on Gas Hydrate Reservoirs

Search and Discovery.com

... distribution functions (Kamei et al., 2005): p(V ) = ⎛ (V − μ1 )2 ⎞ (1 − w1 ) ⎛ (V − μ2 ) 2 ⎞ w1 exp ⎜ − exp ⎜ − + ⎟ ⎟ 2 2σ 12 ⎠ 2σ 2 ⎠ 2πσ 1 2πσ 2 ⎝ ⎝ (1...

Characterizing Gas Transfer from the Inorganic Matrix and Kerogen to Fracture Networks: A Comprehensive Analytical Modeling Approach

Jie Zeng, Jishan Liu, Wai Li, Lin Li, Yee-Kwong Leong, Derek Elsworth, Jianchun Guo

Unconventional Resources Technology Conference (URTEC)

... fundamental issues in shale gas extraction modeling. Existing gas transfer functions can be classified into the following categories: (1) direct single...

Data selection for velocity model estimation using a circular shot OBN survey

Felipe T. Costa, Sergio L. E. F. da Silva, Ammir A. Karsou, Felipe Capuzzo, Roger M. Moreira, Jorge Lopez, Marco Cetale

International Meeting for Applied Geoscience and Energy (IMAGE)

... to circular shot OBN surveys, comparing different objective functions and successfully retrieving structures in the Brazilian pre-salt area. Despite...

A New Model for Pressure Transient Analysis of Fractured Horizontal Wells in Shale Gas Reservoirs With Continuum and Discrete Fracture Networks

Zhiming Chen, X W. Liao, H Zhang, Wei Yu, X D. Shen, Xiaoqing Shang, J L. Zhang, Hongyang Chu, Qingling Liu

Unconventional Resources Technology Conference (URTEC)

... ) is the second kind of modified Bessel functions. With superposition principle, the dimensionless pressure difference by production of natural fractures...

Modeling the Semivariogram: New Approach, Methods Comparison, and Simulation Study

A. Gribov, K. Krivoruchko, J. M. Ver Hoef

AAPG Special Volumes

... functions, power exponential functions, and J- and K-Bessel functions were commonly used to model the semivariogram. Soviet meteorological monitoring...

A New Method for Handling the Nugget Effect in Kriging

K. Krivoruchko, A. Gribov, J. M. Ver Hoef

AAPG Special Volumes

... be formulated in terms of covariance or semivariogram functions. In either formulation, the models of spatial autocorrelation commonly exhibit similar...

Pressure Transient Behavior of Unconventional Reservoirs: Combined Effect of Spatial Variation and Stress-Dependence of Formation Permeability

Ayon Kumar Das, Hassan Hassanzadeh

Unconventional Resources Technology Conference (URTEC)

.... After weakening the nonlinearity by applying Pedrosa's transformation, features of the perturbation technique and modified Bessel functions...

Forebulge Migration: A Three-dimensional Flexural Numerical Modeling and Subsurface Study of Southwestern Wyoming

Hongjun Luo, Dag Nummedal

AAPG Special Volumes

... to Bessel-Kelvin functions:where = [D/ρg]1/4/1000 (km); ρ = density of load (basement) (2800 kg/m3); a = radius of disc load; ker, kei, ker, kei, ber, bei...

Multi-scale anisotropic dispersion and attenuation in VTI media with penny-shaped cracks

Yanwen Feng, Zhaoyun Zong, Guangzhi Zhang

International Meeting for Applied Geoscience and Energy (IMAGE)

... cracks order Bessel functions, respectively,   3i  2 K f ,  is frequency,  is the fluid viscosity. E f is additional strain caused by interlayer...

Characterization of Early-Time Performance of a Well with a Vertical Fracture Producing at Constant Pressure

Nicholas Wiewiorowski, Alex Valdes-Perez, Thomas A. Blasingame

Unconventional Resources Technology Conference (URTEC)

... = = = = Exponential integral Error function Gamma function Modified Bessel Functions of the first kind, first order Appendix A: Constant Pressure Solution...

Analytical Approach for Injectivity Profiling Through Warm-Back Analysis in Multilayer Reservoirs

Refaat Hashish, Mehdi Zeidouni

Unconventional Resources Technology Conference (URTEC)

...) 2 To enable use of the graphical technique for arbitrary number of layers by a field analyst, a MATLAB code is developed to generate the plot...

On Using The Log-hyperbolic Distribution To Describe The Textural Characteristics Of Eolian Sediments

K.-H. Wyrwoll , G. K. Smyth

Journal of Sedimentary Research (SEPM)

..., Handbook of mathematical functions, with formulas, graphs and mathematical tables: Washington, National Bureau of Standards. BAGNOLD, R. A., 1941...

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)

... is the incompressibility of the fluid in the gap, a is the contact radius, h o is the equilibrium separation distance, Jo(a) and J1(a) are Bessel functions of the first...

A Diagnostic Approach to Identify Complex Fracture Geometries in Unconventional Reservoirs Using a Semi-Analytical Model

Zhiming Chen, Xinwei Liao, Wei Yu, Kamy Sepehrnoori, Xiaoliang Zhao, Xiaojiang Li, He Sun

Unconventional Resources Technology Conference (URTEC)

... qFD is the production flux of the line source into fracture networks; K 0  x  is the second kind of modified Bessel functions; s is the Laplace...

Abstracts: Accurate Declipping Hybrid Algorithm for Ground Penetrating Radar Data; #90173 (2015)

Akshay Gulati and R. J. Ferguson

Search and Discovery.com

... combination of Kaiser Bessel Non uniform fast Fourier transform (NFFT) and Projection on Convex Set (POCS) to restore clippings. This algorithm is tested...