1,860 Hits in 5.8 sec

Data-driven model for hydraulic fracturing design optimization. Part II: Inverse problem [article]

Viktor Duplyakov, Anton Morozov, Dmitriy Popkov, Egor Shel, Albert Vainshtein, Evgeny Burnaev, Andrei Osiptsov, Grigory Paderin
2021 arXiv   pre-print
The model is developed based on an extended digital field data base of reservoir, well and fracturing design parameters.  ...  An inverse problem (selecting an optimum set of fracturing design parameters to maximize production) is formulated as optimizing a high dimensional black box approximation function constrained by boundaries  ...  We would like to state it explicitly that the models presented in this work are solely based on the field data provided by JSC Gazpromneft and we are grateful for the permission to publish.  ... 
arXiv:2108.00751v1 fatcat:i537ksfwz5gkvmnxmap7xnezee

Multipole moment decomposition for imaging hydraulic fractures from remote elastostatic data

B Lecampion, A Peirce
2007 Inverse Problems  
These results are compared to those obtained by identifying the parameters of a dislocation model with a prescribed geometry-a procedure which is commonly used for such problems.  ...  This procedure is tested by attempting to identify fracture footprints from synthesized hydraulic fracture data.  ...  His constant interest in the development of new techniques for the monitoring of hydraulic fractures was a great encouragement during the course of this work.  ... 
doi:10.1088/0266-5611/23/4/016 fatcat:77vncmvnszczph5dxngkg45ssq

Forward Osmosis Membranes – A Review: Part II [chapter]

Murat Eyvaz, Serkan Arslan, Derya İmer, Ebubekir Yüksel, İsmail Koyuncu
2018 Osmotically Driven Membrane Processes - Approach, Development and Current Status  
This book chapter is published in two parts.  ...  between two solutions, meaning that there is no need to apply an external energy, this results in low fouling propensity of membrane and minimization of irreversible cake forming, which are the main problems  ...  Forward Osmosis Membranes -A Review: Part II 10.5772/intechopen.74659 Osmotically Driven Membrane Processes -Approach, Development and Current Status  ... 
doi:10.5772/intechopen.74659 fatcat:7q5gj3xpznd3nbshezspkl5t7q

Reservoir modeling of shale formations

Shahab D. Mohaghegh
2013 Journal of Natural Gas Science and Engineering  
The attached copy is furnished to the author for internal non-commercial research and education use, including for instruction at the authors institution and sharing with colleagues.  ...  Acknowledgment Author would like to express his gratitude to Masoud Kalantari and Soodabeh Esmaili for their assistance in collecting and summarizing the great amount of literature that was reviewed for  ...  is used to perform modeling instead of "Soft Data"; iii) use of "Hard Data" instead of "Soft Data" makes it possible to use this model (solving the inverse problem) for the purposes of In all the plots  ... 
doi:10.1016/j.jngse.2013.01.003 fatcat:7cqvgalqizehrdu5t4tok2sswu

Data-driven model for hydraulic fracturing design optimization: focus on building digital database and production forecast [article]

A.D. Morozov, D.O. Popkov, V.M. Duplyakov, R.F. Mutalova, A.A. Osiptsov, A.L. Vainshtein, E.V. Burnaev, E.V. Shel, G.V. Paderin
2020 arXiv   pre-print
system for advising DESC and production stimulation engineers on an optimized fracturing design.  ...  Growing amount of hydraulic fracturing (HF) jobs in the recent two decades resulted in a significant amount of measured data available for development of predictive models via machine learning (ML).  ...  The authors are particularly grateful to We would like to state it explicitly that the models presented in this work are solely based on the field data provided by JSC Gazprom neft and we are grateful  ... 
arXiv:1910.14499v3 fatcat:fxpg73zyanehnb3sf65njx65iq

A comprehensive numerical analysis of the hydraulic behavior of a permeable pavement

Giuseppe Brunetti, Jiří Šimůnek, Patrizia Piro
2016 Journal of Hydrology  
The improvement in correspondence between measured and modeled hydrographs confirmed the reliability of the combination of GSA and PSO in dealing with highly dimensional optimization problems.  ...  However, the lack of adequate modeling tools represents a barrier in designing and constructing such systems.  ...  ''Scientific-technological generators of transformation processes of the productive system and creation of new sectors" Action II: ''Interventions to support industrial research".  ... 
doi:10.1016/j.jhydrol.2016.07.030 fatcat:5qvbpk5ktbetnkdhwbibibhd2u

Forming limit criterion for ductile anisotropic sheets as a material property and its deformation path insensitivity, Part II: Boundary value problems

Kwansoo Chung, Chulhwan Lee, Hyunki Kim
2014 International journal of plasticity  
However, severe strain localization is a mathematical consequence (of the boundary value problem) of the principle of linear momentum and the constitutive law; therefore not a part of material properties  ...  II in view of regular and modified hemispherical dome stretching and circular cup drawing tests, while its deformation path insensitive formulae were theoretically justified in Part I by examining the  ...  Introduction One of main objectives of engineering is to design (or optimize) forming processes.  ... 
doi:10.1016/j.ijplas.2014.03.014 fatcat:skx7g4hgbbdgnkhkdlu3sridia

A review of model applications for structured soils: a) Water flow and tracer transport

John Maximilian Köhne, Sigrid Köhne, Jirka Šimůnek
2009 Journal of Contaminant Hydrology  
Recent progress has been made in characterizing the hydraulically relevant soil structures, dynamic flow conditions, inverse parameter and uncertainty estimations, independent model parameterizations,  ...  At the catchment area scale, the scarcity of data makes validation of PF related model components a task yet to be accomplished.  ...  The authors thank Nick Jarvis for his detailed and constructive review of a draft version of this paper.  ... 
doi:10.1016/j.jconhyd.2008.10.002 pmid:19012994 fatcat:ookzmitxgnguzkgj5aebxq6aae

Model selection in fracture mapping from elastostatic data

B. Lecampion, J. Gunning
2007 International Journal of Solids and Structures  
In this paper, the inverse problem of imaging internally pressurized cracks from elastostatic measurements is investigated with special attention to the question of model choice.  ...  This Bayesian model selection method also produces a known limit for the resolution of fracture dimensions, which depends on the configuration of the measurements.  ...  Acknowledgements We wish to thank CSIRO Petroleum and the International Caving Study consortium (ICS II) for financial support and giving permission to publish this work. Useful discussions with Dr.  ... 
doi:10.1016/j.ijsolstr.2006.06.022 fatcat:73ced6hvcnabpb3avwbxtmxkja

Computer simulation of hydraulic fractures

J. Adachi, E. Siebrits, A. Peirce, J. Desroches
2007 International Journal of Rock Mechanics And Mining Sciences  
We provide a brief historical background of the development of hydraulic fracturing models for use in the petroleum and other industries.  ...  We demonstrate the complexity of hydraulic fracturing by means of an application example based on real data.  ...  Acknowledgments The authors thank Schlumberger for permission to publish, Hongren Gu for his contributions related to TVD-based methods for proppant transport, and Jack Elbel for his review of the historical  ... 
doi:10.1016/j.ijrmms.2006.11.006 fatcat:ngmr6pefpzbv3imsg5utgtghwy

Comparative analyses of pumping tests conducted in layered rhyolitic volcanic formations

Ferenc Székely, Péter Szűcs, Balázs Zákányi, Tibor Cserny, Zoltán Fejes
2015 Journal of Hydrology  
Appropriate agreement with the measured drawdown data (both tests) and flow logging data (Drill Hole Wash) is achieved. Computer aided calibration is used for the parameter estimation.  ...  , and (iii) considers drawdown driven induced flow in the observation well.  ...  The authors thank two anonymous reviewers for their comprehensive comments and suggestions improving the content of the paper.  ... 
doi:10.1016/j.jhydrol.2014.11.038 fatcat:wvvysnydcfakth7uywzk2fauqe

The DESI Experiment Part II: Instrument Design [article]

DESI Collaboration: Amir Aghamousa, Jessica Aguilar, Steve Ahlen, Shadab Alam, Lori E. Allen, Carlos Allende Prieto, James Annis, Stephen Bailey, Christophe Balland, Otger Ballester, Charles Baltay, Lucas Beaufore, Chris Bebek, Timothy C. Beers (+248 others)
2016 arXiv   pre-print
The DESI collaboration will also deliver a spectroscopic pipeline and data management system to reduce and archive all data for eventual public use.  ...  The DESI instrument will be used to conduct a five-year survey designed to cover 14,000 deg^2.  ...  Vibration is not expected to be a problem for the focal plate structure. The design is driven by achieving enough stiffness to control gravity-induced deflection, a body force.  ... 
arXiv:1611.00037v2 fatcat:qupbf5xl2beaxb5fjkl2ptdkz4

Analysis of induced seismicity in geothermal reservoirs – An overview

Arno Zang, Volker Oye, Philippe Jousset, Nicholas Deichmann, Roland Gritto, Art McGarr, Ernest Majer, David Bruhn
2014 Geothermics  
The hypocentres of the observed seismic events (seismic cloud) are dependent on the design of the installed network, the used velocity model and the applied location technique.  ...  During exploitation, one should use observed and model induced seismicity to forward estimate seismic hazard so that field operators are in a position to adjust well hydraulics (rate and volume of the  ...  We thank Corinne Bachmann and Julie Albaric for providing one figure from Basel and Paralana site stimulation, respectively.  ... 
doi:10.1016/j.geothermics.2014.06.005 fatcat:54wc4njzlrczhnq4ckjmzlzuxu

On the use of surrogate-based modeling for the numerical analysis of Low Impact Development techniques

Giuseppe Brunetti, Jirka Šimůnek, Michele Turco, Patrizia Piro
2017 Journal of Hydrology  
While having been previously applied to various water-related and environmental modeling problems, no studies have used surrogate models for the analysis of LIDs.  ...  Mechanistic models have proven to be accurate tools for the numerical analysis of the hydraulic behavior of Low Impact Development (LIDs) techniques.  ...  Acknowledgements The study was co-funded by the Italian National Operative Project (PON): Research and Competitiveness for the convergence regions 2007/2013-I Axis ''Support to structural changes", operative  ... 
doi:10.1016/j.jhydrol.2017.03.013 fatcat:d2i6suwuefbsdmzclxu6bskdz4

Image Beyond A Standardized Workflow For Geothermal Exploration (D2.05)

IMAGE Consortium
2017 Zenodo  
This document presents the main achievements of the FP7 funded project Integrated Methods for Advanced Geothermal Exploration (2013-2017) WHAT IS IMAGE IMAGE (Integrated Methods for Advanced Geothermal  ...  The project was co-funded for four years (2013-2017) and was completed in October 2017. IMAGE involved 20 partners from 9 different countries (Figure 1).  ...  Three datasets were identified and used as external constraints in inversion of MT data; 1. TEM data to correct for the static shift of MT data, and constrain the uppermost part of the model. 2.  ... 
doi:10.5281/zenodo.1255213 fatcat:6w3f72fm6ffqxnnzdgmgirqn6u
« Previous Showing results 1 — 15 out of 1,860 results