Relevant bibliographies by topics / Fracture parameter

Contents

  1. Journal articles
  2. Dissertations / Theses
  3. Books
  4. Book chapters
  5. Conference papers
  6. Reports

Academic literature on the topic 'Fracture parameter'

Author: Grafiati
Published: 9 March 2023
Last updated: 31 July 2025

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Journal articles on the topic "Fracture parameter"

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Liu, Chao, Xinggui Yang, Wenqi Cao, Jin Lin, Yuxuan Liu, and Hang Zhang. "Discrimination Model of Interaction Between Hydraulic Fracture and Natural Fracture Based on Energy Balance." Processes 13, no. 6 (2025): 1652. https://doi.org/10.3390/pr13061652.

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Hydraulic fracturing technology has been extensively applied for the efficient development of unconventional reservoirs. Influenced by geological discontinuities such as naturally fractured weak planes, the complex interaction behaviors between hydraulic fractures and natural fractures significantly challenge the prediction of hydraulic fracture propagation paths. Establishing interaction discrimination models to predict these behaviors proves crucial for characterizing post-stimulation fracture complexity. This study develops a discrimination model for hydraulic-natural fracture interactions
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Sil, Samik. "Fracture parameter estimation from well-log data." GEOPHYSICS 78, no. 3 (2013): D129—D134. http://dx.doi.org/10.1190/geo2012-0407.1.

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We evaluated a method of deriving seismic fracture parameters from vertical-well-log data with the assumption that the fractured medium is transversely isotropic with a horizontal axis of symmetry (HTI). One approximation we used is that the observed vertical P-wave velocity is the same as the background isotropic P-wave velocity of the HTI medium. Another assumption was that the fractures and cracks are noninteractive and penny shaped. Using these approximations, we generated the fracture compliance matrix for each layer. Fracture parameters were then derived by constructing the HTI stiffness
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Yu, Qingyan, Qi Wang, Pengcheng Liu, et al. "Theoretical Study and Application of Rate Transient Analysis on Complex Fractured-Caved Carbonate Reservoirs." Geofluids 2021 (January 23, 2021): 1–15. http://dx.doi.org/10.1155/2021/6611957.

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Carbonate reservoirs are mainly fractured-caved reservoirs with very well-developed dissolved pores, fractures, and caves. They have strong heterogeneity with various types of reservoir pore spaces. Using seismic inversion and reservoir static characterization, the result shows that the fractured-caved carbonate rocks in China are mainly caves with poor connectivity and complex oil-water distribution. Large-scale dissolved caves are mostly discrete and isolated, while the fractures are complex and various. The fracture features are observed either as a single large fractures or as a local frac
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Zhou, Xin, Jianping Chen, Yunkai Ruan, Wen Zhang, Shengyuan Song, and Jiewei Zhan. "Demarcation of Structural Domains in Fractured Rock Masses Using a Three-Parameter Simultaneous Analysis Method." Advances in Civil Engineering 2018 (December 6, 2018): 1–13. http://dx.doi.org/10.1155/2018/9358098.

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A structural domain represents a volume of a rock mass with similar mechanical and hydrological properties. To demarcate structural domains (or statistically homogeneous regions) in fractured rock masses, this study proposes a three-parameter simultaneous analysis method (3PSAM) that simultaneously considers rock fracture orientation, trace length, and aperture to evaluate statistical homogeneity between two regions. First, a 102-patch three-dimensional Schmidt net, which represents a new comprehensive classification system, is established to characterize rock fractures based on their orientat
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Zhang, Tingting, Ruifeng Zhang, Jianzhang Tian, et al. "Two-parameter prestack seismic inversion of porosity and pore-structure parameter of fractured carbonate reservoirs: Part 2 — Applications." Interpretation 6, no. 4 (2018): SM9—SM17. http://dx.doi.org/10.1190/int-2018-0019.1.

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Fractures and fracture-related dissolution pores, as well as cavities, molds, and vugs, provide the major conduit and/or storage space for hydrocarbons in the deeply buried carbonate hill of Hexiwu field, Bohai Bay Basin. The fractured reservoir generally has lower porosity but better permeability than moldic/vuggy reservoir, and it consists of the major part of the buried-hill slope and buried-hill internal reservoirs. The conventional method of characterizing carbonate reservoirs, however, often mixes these two types of reservoirs together because they both have low acoustic impedance and lo
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Wang, Kang, Suping Peng, Yongxu Lu, and Xiaoqin Cui. "Full waveform inversion in fractured media based on velocity–stress wave equations in the time domain." Geophysical Journal International 227, no. 2 (2021): 1060–75. http://dx.doi.org/10.1093/gji/ggab243.

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SUMMARY In the process of seismic wave propagation, the presence of fractures will cause a seismic wave response associated with fracture compliance. Full waveform inversion (FWI) is an effective way to quantitatively obtain fracture compliance values, which can simulate seismic wave propagation in a fractured medium and compute the gradient expression of the fracture compliance parameters. To obtain the fracture compliance parameters quantitatively, a new technique based on FWI needs to be proposed. Based on linear slip theory, a new finite-difference scheme using a rotated grid has been deve
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Legostaev, D. Yu, and S. P. Rodionov. "Numerical Investigation of the Structure of Fracture Network Impact on the Fluid Flow through a Poroelastic Medium." Известия Российской академии наук. Механика жидкости и газа, no. 4 (July 1, 2023): 93–107. http://dx.doi.org/10.31857/s1024708422600543.

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Two-dimensional single-phase flow of a weakly compressible fluid through a deformable fractured-porous medium is considered. A poroelastic model is used for coupled simulation of the fluid flow and the related changes in the stress state of the medium. Fracture network is simulated using the discrete fracture model. The fractures in the region under consideration have random location and orientations, and the fracture length distribution follows a power law. The dependence of the hydraulic properties of fractured porous media on its stress-strain state and the structure of the fracture network
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Zhang, Bochao, Lixin Wang, and Jianming Liu. "Finite Element Analysis and Prediction of Rock Mass Permeability Based on a Two-Dimensional Plane Discrete Fracture Model." Processes 11, no. 7 (2023): 1962. http://dx.doi.org/10.3390/pr11071962.

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The safety of underground engineering projects is significantly influenced by groundwater. One of the key complexities is identifying the primary seepage paths within underground rock formations, understanding the patterns of seepage, and determining the effects of fracture parameters on the fluid movement inside the rock mass. To address these issues, a probabilistic model is constructed for random fractures using the finite element method, reflecting the random nature of fracture distributions in the real world. This model allows for an in-depth examination of the distribution of pore water
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Yan, Tianfan, and Yike Liu. "Fracture detection using scattered waves in the angle domain." GEOPHYSICS 86, no. 4 (2021): S257—S269. http://dx.doi.org/10.1190/geo2020-0128.1.

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The singly and multiply scattered waves generated from interfaces of a fractured medium have strong energy, and their propagation directions contain information of fracture parameters. To exploit the useful information in the scattered waves, a fracture scattering imaging method is developed based on reverse time migration and angle decomposition. In this method, a fracture-parameter-related local image matrix is constructed in the angle domain based on the relation between the fracture parameters and the propagation angle of the scattered waves. The distribution of the scattered waves in the
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Partsinevelou, Aikaterini-Sofia. "Using the SWAT model in analyzing hard rock hydrogeological environments. Application in Naxos Island, Greece." Bulletin of the Geological Society of Greece 51 (October 4, 2017): 18. http://dx.doi.org/10.12681/bgsg.11960.

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The main parameter that controls the groundwater flow regime in fractured aquifers is the fracture pattern. Its description is crucial for a hydrogeological study, as the hydraulic properties of hard rocks are mainly controlled by fracturing. The parameters of the fracture pattern that were analyzed in the study area were the frequency and spatial location of the fractures, the density of fractures and the degree of fracture intersection.Furthermore, a straight link between the fracture pattern and the hydrological conditions is important for a first analysis of the potential groundwater zones
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Dissertations / Theses on the topic "Fracture parameter"

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MacLennan, Iain James. "Two parameter engineering fracture mechanics." Thesis, University of Glasgow, 1996. http://theses.gla.ac.uk/6756/.

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The object of this work was to investigate and expand on previously carried out research into elastic-plastic crack tip fields using the first two terms of the Williams expansion to characterise the degree of crack tip constraint. As a precursor to this research a history of fracture mechanics is also presented. In the present work crack tip fields in small scale yielding have been detennined using modified boundary layer formulations in an attempt to model the influence of the second order term of the Williams expansion, the T -stress. The prime object of this thesis was to investigate and ex
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Yoon, Kee Bong. "Characterization of creep fatigue crack growth behavior using C[superscript](t[superscript]) parameter." Diss., Georgia Institute of Technology, 1990. http://hdl.handle.net/1853/17523.

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Curtin, William J. "An investigation of a two parameter elastic-plastic fracture mechanics methodology." Thesis, Georgia Institute of Technology, 1993. http://hdl.handle.net/1853/17782.

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Reakes, Clayton E. IV. "Nonlinear Fracture Mechanics Analysis of Threaded Fastener Geometry." University of Akron / OhioLINK, 2015. http://rave.ohiolink.edu/etdc/view?acc_num=akron1447425945.

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Wert, Melissa Jane. "The applicability of modified J-integral as a fracture parameter for polycarbonate." Thesis, Georgia Institute of Technology, 1988. http://hdl.handle.net/1853/18860.

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MARTINELLI, MATTIA. "From outcrop to fracture model. A multidisciplinary approach to characterize fracture networks from outcrop analogues in carbonates affected by extensional tectonics." Doctoral thesis, Università degli Studi di Milano-Bicocca, 2020. http://hdl.handle.net/10281/271026.

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I network di fratture hanno un ruolo fondamentale nel controllo della permeabilità e del flusso dei geo-fluidi (e.g. idrocarburi, acqua, fluidi idrotermali ecc.). Nel sottosuolo i parametri delle fratture vengono solitamente caratterizzati utilizzando dati di pozzo e dati sismici, i quali però sono divisi da un salto di scala. Infatti, i dati di pozzo sono sparsi e parziali mentre anche la sismica migliore non è in grado di identificare fratture con dimensione minori di 200 metri. Gli analoghi esumati con dimensioni chilometriche posso aiutare a colmare questo divario permettendo di raccoglier
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Wang, Yongyi. "A two-parameter characterization of elastic-plastic crack tip fields and applications to cleavage fracture." Thesis, Massachusetts Institute of Technology, 1991. http://hdl.handle.net/1721.1/13461.

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Hosseinian, Armin. "Numerical simulations of fluid flow through a single rough walled fracture." Thesis, Curtin University, 2011. http://hdl.handle.net/20.500.11937/1764.

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The morphological properties of rock fractures may have a significant influence on their hydromechanical behaviour. Fracture surface roughness could change the fluid flow regime from laminar to turbulent, while it causes the flow properties to deviate from cubic law for smooth channels due to a change in fracture equivalent hydraulic aperture. Different empirical (including the well known Joint Roughness Coefficient, JRC) and statistical methods have been proposed for surface roughness characterisation in an attempt to link them to the hydromechanical behaviour of fractures.This thesis aims to
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WATANABE, Katsuhiko, and Hideyuki AZEGAMI. "Proposal of a New Crack Model Considering the Discontinuity in the Cracked Plane and Its Application to the Evaluation of Crack Parameter." 日本機械学会, 1986. http://hdl.handle.net/2237/12161.

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渡辺, 勝彦, Katsuhiko Watanabe, 秀幸 畔上 та Hideyuki Azegami. "き裂前縁を含む面の非連続性を考慮したき裂モデルの提案とそのき裂パラメータ評価への適用". 日本機械学会, 1985. http://hdl.handle.net/2237/7227.

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Books on the topic "Fracture parameter"

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F, Shih C., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering., Brown University. Division of Engineering., and Naval Surface Warfare Center (U.S.). Carderock Division., eds. Two-parameter fracture mechanics: Theory and applications. Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1993.

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F, Shih C., U.S. Nuclear Regulatory Commission. Office of Nuclear Regulatory Research. Division of Engineering., Brown University. Division of Engineering., and Naval Surface Warfare Center (U.S.). Carderock Division., eds. Two-parameter fracture mechanics: Theory and applications. Division of Engineering, Office of Nuclear Regulatory Research, U.S. Nuclear Regulatory Commission, 1993.

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Andrew, Setzer, and George C. Marshall Space Flight Center., eds. Effects of water on the strength of Zerodur. George C. Marshall Space Flight Center, 1991.

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Shlyannikov, Valery N. Elastic-Plastic Mixed-Mode Fracture Criteria and Parameters. Springer Berlin Heidelberg, 2003. http://dx.doi.org/10.1007/978-3-540-45836-4.

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Makridin, N. I. Struktura i parametry treshchinostoĭkosti t︠s︡ementnykh kompozitov. Penzenskai︠a︡ gos. arkhitekturno-stroit. akademii︠a︡, 2000.

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Canada, Atomic Energy of. Generation of Synthetic Fracture Parameters For Crack Network Analysis. s.n, 1985.

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P, Gyekenyesi John, and United States. National Aeronautics and Space Administration., eds. Calculation of Weibull strength parameters and Batdorf flow-density constants for volume- and surface-flaw-induced fracture in ceramics. National Aeronautics and Space Administration, 1989.

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Karstensen, A. D. Effect of Weibull parameters on 'local approach' to cleavage fracture predictions. TWI, 1999.

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V, Zaretsky Erwin, and United States. National Aeronautics and Space Administration., eds. Comparison of Weibull strength parameters from flexure and spin tests of brittle materials. National Aeronautics and Space Administration, 1991.

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Vogelsang, M. Measurement and calculation of parameters for local fracture criteria on notched tensile specimens. UMIST, 1995.

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Book chapters on the topic "Fracture parameter"

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Merembayev, Timur, and Yerlan Amanbek. "Natural Fracture Network Model Using Machine Learning Approach." In Computational Science and Its Applications – ICCSA 2023 Workshops. Springer Nature Switzerland, 2023. http://dx.doi.org/10.1007/978-3-031-37114-1_26.

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AbstractA fracture network model is a powerful tool for characterizing fractured rock systems. In this paper, we present the fracture network model by integrating a machine learning algorithm in two-dimensional setting to predict the natural fracture topology in porous media. We also use a machine learning algorithm to predict the fracture azimuth angle for the natural fault data from Kazakhstan. The results indicate that the fracture network model with LightGBM performs better in designing a fracture network parameter for hidden areas based on data from the known area. In addition, the numeri
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Vlček, L., Z. Chlup, and V. Kozák. "Problems in Q-Parameter Calculations." In Transferability of Fracture Mechanical Characteristics. Springer Netherlands, 2002. http://dx.doi.org/10.1007/978-94-010-0608-8_6.

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Hadj Meliani, M., O. Bouledroua, M. Ould-M’beirick, et al. "The Two-Parameter Approach for Fracture Mechanics: Some Industrial Applications." In Fracture at all Scales. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32634-4_6.

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Wang, Xiang Dong, Wei Xuan Zhu, Ai Min Deng, Dong Zhou, and Dao Yuan Xu. "Concrete Damage Parameter and its Size Effect." In Advances in Fracture and Damage Mechanics VI. Trans Tech Publications Ltd., 2007. http://dx.doi.org/10.4028/0-87849-448-0.369.

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Kotake, Shigeo, Hiroyuki Kimata, Takashi Aoki, Yasuyuki Suzuki, and Masafumi Senoo. "Catastrophic Transformation of Electron Stress and Electron Stiffness Parameter on Metal and Semiconductor." In Mesoscopic Dynamics of Fracture. Springer Berlin Heidelberg, 1998. http://dx.doi.org/10.1007/978-3-662-35369-1_17.

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Ben Amara, M., Guy Pluvinage, J. Capelle, and Z. Azari. "The CTOA as a Parameter of Resistance to Crack Extension in Pipes Under Internal Pressure." In Fracture at all Scales. Springer International Publishing, 2016. http://dx.doi.org/10.1007/978-3-319-32634-4_4.

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Li, Chun Guang, Xiu Run Ge, Hong Zheng, and Shui Lin Wang. "Two-Parameter Parabolic Mohr Strength Criterion and Its Damage Regularity." In Fracture and Strength of Solids VI. Trans Tech Publications Ltd., 2006. http://dx.doi.org/10.4028/0-87849-989-x.327.

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Brokmann, Christopher. "Mechanical Parameter Quantification." In A Model for the Stochastic Fracture Behavior of Glass and Its Application to the Head Impact on Automotive Windscreens. Springer Fachmedien Wiesbaden, 2022. http://dx.doi.org/10.1007/978-3-658-36788-6_4.

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Anderson, T. L. "Two-Parameter Fracture Mechanics: A Comparison of Continuum and Micromechanics Approaches." In Fracture of Engineering Materials and Structures. Springer Netherlands, 1991. http://dx.doi.org/10.1007/978-94-011-3650-1_114.

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van Mier, J. G. M. "A solution to the parameter-identification conundrum: multi-scale interaction potentials." In Fracture Phenomena in Nature and Technology. Springer International Publishing, 2014. http://dx.doi.org/10.1007/978-3-319-04397-5_13.

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Conference papers on the topic "Fracture parameter"

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Sun, Shibo, Wendong Wang, Yuliang Su, Yuxuan Deng, and Haoyu Li. "Fracture Parameter Inversion in Geothermal Reservoir Using Deep Learning." In Offshore Technology Conference Asia. OTC, 2024. http://dx.doi.org/10.4043/34853-ms.

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Abstract Proper characterization of fractures is critical for evaluating the effectiveness of fracturing jobs and optimizing well performance in geothermal energy production, unconventional reservoirs, and other areas. However, accurately determining the size, shape, and orientation of these fractures solely from microseismic events is challenging due to weak signals and noise. To address this challenge, this study proposes a novel workflow that directly builds accurate fracture models from microseismic events using the DBSCAN clustering algorithm and BiLSTM-ESMDA. The first step is to filter
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Sabinin, Grigory, Tatiana Chichinina, Vadim Tulchinsky, and Manuel Romero-Salcedo. "Machine Learning for Fracture Parameter Estimation in Fractured Reservoirs from Seismic Data." In SPE Russian Petroleum Technology Conference. Society of Petroleum Engineers, 2020. http://dx.doi.org/10.2118/201934-ms.

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Li, Lin, Guangzhi Zhang, Xiaolong Guo, and Bingyi Du. "Azimuthal Fourier coefficients inversion for effective stress parameter and fracture parameters." In First International Meeting for Applied Geoscience & Energy. Society of Exploration Geophysicists, 2021. http://dx.doi.org/10.1190/segam2021-3593922.1.

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Sabinin, Grigory, Tatiana Chichinina, Vadim Tulchinsky, and Manuel Romero-Salcedo. "Machine Learning for Fracture Parameter Estimation in Fractured Reservoirs from Seismic Data (Russian)." In SPE Russian Petroleum Technology Conference. Society of Petroleum Engineers, 2020. http://dx.doi.org/10.2118/201934-ru.

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Zhao, Xurong, Tian Lan, Zekai Tang, et al. "Optimization Model of Fracture Parameters of Shale Gas Fracturing Horizontal Well Based on Genetic Algorithm." In Middle East Oil, Gas and Geosciences Show. SPE, 2023. http://dx.doi.org/10.2118/213337-ms.

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Abstract Based on a genetic algorithm and field production data, this paper reasonably optimizes the fracture parameters of multistage fractured horizontal wells (MFHWs). First, a mathematical model of MFHWs in shale gas reservoir is proposed under the conditions of variable production and variable pressure. Then, the main factors affecting well production are determined by sensitive analysis. Finally, the production prediction model based on a genetic algorithm (GA) is used to optimize the fracture parameters of the Fuling shale gas reservoir. The results show that in the study area, the numb
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Kim, J., J. Choi, J. Leem, and J. J. Song. "Growth Parameter Conditioning of Genetic Discrete Fracture Networks to Trace Length Distribution Data." In 58th U.S. Rock Mechanics/Geomechanics Symposium. ARMA, 2024. http://dx.doi.org/10.56952/arma-2024-0846.

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ABSTRACT: Genetic discrete fracture network (DFN) modeling is a dynamic modeling approach that simulates fracture growth processes in DFN generation. The modeling procedure incorporates growth-related input parameters, such as the growth time, step size, and coefficients of nucleation and growth, which are difficult to deduce directly from survey data. This study introduces a method for conditioning these growth parameters to trace length distribution using an optimization procedure, where the growth parameters are fine-tuned to produce genetic DFNs that align with the observed distribution. T
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Chen, Xiaowei, Colin Pennington, Raymond Ng, Nori Nakata, and Jiewen Zhang. "Source parameter analysis of microseismicity during hydraulic fracture: Pinning stress distributions within fracture zone." In SEG Technical Program Expanded Abstracts 2019. Society of Exploration Geophysicists, 2019. http://dx.doi.org/10.1190/segam2019-3216218.1.

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Wang, W. X., and Z. P. Jia. "Rock Porosity and Fracture Parameter Estimation by Image Technique." In 2009 Third International Symposium on Intelligent Information Technology Application. IEEE, 2009. http://dx.doi.org/10.1109/iita.2009.441.

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Elbel, J. L. "Parameter Accuracy Required for Real-Time Fracture Geometry Simulation." In Low Permeability Reservoirs Symposium. Society of Petroleum Engineers, 1989. http://dx.doi.org/10.2118/19001-ms.

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Chen, Huaizhen, Guangzhi Zhang, and Xingyao Yin. "AVAZ inversion for elastic parameter and fracture fluid factor." In SEG Technical Program Expanded Abstracts 2012. Society of Exploration Geophysicists, 2012. http://dx.doi.org/10.1190/segam2012-0067.1.

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Reports on the topic "Fracture parameter"

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Baron, D. T. Fracture Parameter Calculations for SENT Specimens with Two Boundary Conditions. Defense Technical Information Center, 1997. http://dx.doi.org/10.21236/ada386841.

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Biagio, Di. L52037 Ductile Fracture Propagation Resistance for Advanced Pipeline Designs. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0011001.

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The development of a method able to evaluate the ductile fracture behavior on pipelines has been documented. Therefore, methods for the determination of material fracture resistance and crack driving force have been accurately investigated. In particular, the techniques to determine the critical fracture characterizing parameter CTOA (crack tip opening angle) have been reviewed in-depth (back-slotted drop weight tear tests [DWTT], two specimen CTOA tests, etc.), and in view of a future pipe-mill application. For a more reliable CTOA estimate the needed following parameters have been investigat
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Chell. PR-015-063513-R01 Evaluating Failure Susceptibility Due to Axial Cracks in Pressurized Line Pipe. Pipeline Research Council International, Inc. (PRCI), 2008. http://dx.doi.org/10.55274/r0010971.

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A best estimate methodology based on elastic-plastic fracture mechanics technology was developed that uses the cract tip driving force parameter to support the remaining fatigue life calculations. Development of this technology is facilitated by finite element analysis.
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Maurer, William, and Gregory Deskins. GRl-91-0204 Gas Reservoir Wellbore Orientation - Sensitivity Analysis of Parameters Affecting Production. Pipeline Research Council International, Inc. (PRCI), 1991. http://dx.doi.org/10.55274/r0011162.

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A parametric study was performed to investigate the effects of numerous well and reservoir parameters on gas well productivity. GMODl, an analytical model for gas production in homogeneous reservoirs, was used to calculate production data for more than 250 sets of reservoir/wellbore parameters. Vertical, horizontal, slant and fractured wells were investigated. Several conclusions were reached as a result of parametric sensitivity analyses. In the right applications, horizontal gas wells produce 3 to 6 times more than vertical wells. At angles above about 60�, slant wells have significantly inc
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Lozev. L52022 Validation of Current Approaches for Girth Weld Defect Sizing Accuracy. Pipeline Research Council International, Inc. (PRCI), 2002. http://dx.doi.org/10.55274/r0011325.

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Computational tools based on probabilistic fracture mechanics have been developed to enable reliability-based fitness-for-service assessments of flawed girth welds. The same tools are readily adapted for establishing maximum allowable defect sizes to achieve targeted weld reliability. Sensitivity studies have shown that of the various input parameter uncertainties, measured defect height often has the greatest impact on the probabilities of both fracture and plastic collapse. A reduction in sizing uncertainty should thus dramatically improve predicted reliabilities. The increasing use of mecha
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Bubenik and Nestleroth. L51619 Effects of Loading on the Growth Rates in Deep Stress-Corrosion Cracks. Pipeline Research Council International, Inc. (PRCI), 1990. http://dx.doi.org/10.55274/r0010094.

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With the development of improved techniques for detection of stress corrosion cracks in existing pipelines, the pipeline industry is faced with the problem of estimating the growth rates of these cracks. Current efforts in model development are addressing the problem but, in order to verify these models, accurate average crack velocity data are needed (average crack velocity being defined as the average rate of crack growth with time, crack velocity is the instantaneous rate of crack tip dissolution.) Currently available data are limited and are based primarily on either slow-strain rate tests
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Mannucci and Demofonti. L51882 Mill Test Techniques for Predicting Crack Arrest Ability in High Toughness Steels. Pipeline Research Council International, Inc. (PRCI), 2002. http://dx.doi.org/10.55274/r0011210.

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The cost for construction of new pipelines to meet the demand for natural gas can be justified by using high strength materials: however line safety requires steel properties that preclude catastrophic failures should the pipe wall be breached. Important problems faced in the eighties, come now again onto the table of the international scientific community driven directly by the incoming projects of future high productivity transmission lines, and need final solutions. The objective of this project, was to develop a simple laboratory testing method, that can be easily transferred and used in t
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Lillard, Scott. DTPH56-15-H-CAP02 Understanding and Mitigating the Threat of AC Induced Corrosion on Buried Pipelines. Pipeline Research Council International, Inc. (PRCI), 2017. http://dx.doi.org/10.55274/r0011875.

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Explores new methods for assessing the threat of AC corrosion on buried pipelines. The results from this project will improve indirect inspection methods for assessing the impact of induced AC currents on pipeline corrosion rates and could be used for national and international standards. To accomplish this goal the project has three thrust areas: laboratory studies, industrial test facility benchmarking, and in-service pipeline validation. Previous work in our lab has shown that the magnitude of interfacial capacitance of the corroding metal is a key parameter in determining the AC corrosion
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Tsang, Chin-Fu. A borehole fluid conductivity logging method for the determination of fracture inflow parameters. Office of Scientific and Technical Information (OSTI), 1987. http://dx.doi.org/10.2172/5477039.

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ZHENG, Lei, Yongzhang ZHOU, Junguo HE, Hongzhong LI, and Changyu ZENG. Estimation of mainly rheological parameters of Pangxitong-Jinkeng structural fracture zone, Guangdong, China. Cogeo@oeaw-giscience, 2011. http://dx.doi.org/10.5242/iamg.2011.0112.

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