Egor Dontsov

ORCID: 0000-0002-0437-4910
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About
Contact & Profiles
Research Areas
  • Hydraulic Fracturing and Reservoir Analysis
  • Drilling and Well Engineering
  • Seismic Imaging and Inversion Techniques
  • Rock Mechanics and Modeling
  • Dam Engineering and Safety
  • Numerical methods in engineering
  • Groundwater flow and contamination studies
  • Reservoir Engineering and Simulation Methods
  • Ultrasound Imaging and Elastography
  • Geotechnical and Geomechanical Engineering
  • Ultrasound and Hyperthermia Applications
  • Oil and Gas Production Techniques
  • Computational Fluid Dynamics and Aerodynamics
  • Ultrasonics and Acoustic Wave Propagation
  • Hydrocarbon exploration and reservoir analysis
  • Granular flow and fluidized beds
  • Methane Hydrates and Related Phenomena
  • Photoacoustic and Ultrasonic Imaging
  • Fluid Dynamics and Turbulent Flows
  • Flow Measurement and Analysis
  • Astro and Planetary Science
  • Ionosphere and magnetosphere dynamics
  • Geotechnical Engineering and Underground Structures
  • Magnetic confinement fusion research
  • Composite Material Mechanics

European Remanufacturing Council
2023

ORCID
2021

Skolkovo Foundation
2020

Skolkovo Institute of Science and Technology
2019-2020

University of Houston
2015-2018

Google (United States)
2016

University of British Columbia
2014-2015

Moscow State University
2014

Lomonosov Moscow State University
2013

University of Minnesota
2011-2013

A hybrid discrete-continuum numerical scheme is developed to study the behavior of a hydraulic fracture crossing natural fractures. The fully coupled utilizes discrete element model for an inner domain, within which propagates and interacts with domain embedded in outer continuum that implemented extend length better approximate boundary effects. identified propagate initially viscosity-dominated regime, calibrated by using theoretical plane strain solution. simulation results orthogonal...

10.1002/nag.2682 article EN International Journal for Numerical and Analytical Methods in Geomechanics 2017-02-27

Abstract The goal of this study is to analyse the steady flow a Newtonian fluid mixed with spherical particles in channel for purpose modelling proppant transport gravitational settling hydraulic fractures. developments are based on continuum constitutive model slurry, which approximated by an empirical formula. It shown that problem under consideration features two-dimensional and boundary layer, effectively introduces slip at allows us describe transition from Poiseuille Darcy’s law high...

10.1017/jfm.2014.606 article EN Journal of Fluid Mechanics 2014-11-12

10.1016/j.ijsolstr.2015.02.051 article EN publisher-specific-oa International Journal of Solids and Structures 2015-03-14

This paper develops a closed-form approximate solution for penny-shaped hydraulic fracture whose behaviour is determined by an interplay of three competing physical processes that are associated with fluid viscosity, toughness and leak-off. The primary assumption permits one to construct the mainly three-process multiscale tip asymptotics global volume balance. First, developed approximation compared existing solutions all limiting regimes propagation. Then, map, which indicates...

10.1098/rsos.160737 article EN cc-by Royal Society Open Science 2016-12-01

This study revisits the problem of a steadily propagating semi-infinite hydraulic fracture in which processes toughness-related energy release, viscous dissipation and leak-off compete on multiple length scales. typically requires solution system integro-differential equations with singular kernel, is complicated by need to capture extremely disparate In this governing are rewritten form one non-singular integral equation. reformulation enables use standard numerical techniques complete...

10.1017/jfm.2015.451 article EN Journal of Fluid Mechanics 2015-09-16

10.1016/j.ijrmms.2020.104270 article EN International Journal of Rock Mechanics and Mining Sciences 2020-03-02

Depletion-induced stress change causes the redistribution of field in reservoirs, which can lead to reorientation principal stresses. Stress has a direct impact on fracture propagation infill wells. To understand effect well's fractures, an integrated simulation workflow that combines reservoir flow calculation and well hydraulic fracturing modeling is adopted. The computed examine relationship between extent reversal region properties. Then, model considering altered for production built...

10.1016/j.petsci.2021.09.014 article EN cc-by-nc-nd Petroleum Science 2021-09-10

The focus of this study is to analyze a parametric space for the problem constant height hydraulic fracture driven by power-law fluid. interplay physical mechanisms related toughness, fluid resistance, and leak-off considered, but model restricted local elasticity simplicity. semi-infinite first analyzed: limiting solutions are obtained analytically their locations inside dimensionless obtained. Then, finite investigated. Similarly, vertex outlined then in quantified. Results demonstrate...

10.1016/j.rockmb.2022.100003 article EN cc-by-nc-nd Rock Mechanics Bulletin 2022-10-01

10.1016/j.ijsolstr.2025.113320 article EN International Journal of Solids and Structures 2025-03-01

10.1016/j.engfracmech.2025.111005 article EN Engineering Fracture Mechanics 2025-03-01

<title>Abstract</title> Plug and perf hydraulic fracturing is performed with high-pressure injection of fluid proppant from perforation clusters along a wellbore. During this process, uniform placement important for maximizing economic performance. In prior work, we developed wellbore-proppant transport simulator, which accounts wide range phenomena, including suspension, settling, erosion, pressure drop, inertial effects, orientation, random variance, among others. the present calibrate...

10.21203/rs.3.rs-6297801/v1 preprint EN cc-by Research Square (Research Square) 2025-03-25

10.1016/j.ijsolstr.2013.07.012 article EN publisher-specific-oa International Journal of Solids and Structures 2013-07-26

The focus of this study is to analyse the tip region a hydraulic fracture, for which fluid flow inside crack transitions from laminar turbulent regime away tip. To tackle problem, phenomenological formula in pipes has been adapted describe fracture through concept diameter. selected model able capture laminar, and transition regimes flow. near-tip analysed by focusing on steady propagation semi-infinite with leak-off, aforementioned utilized. First, distance within solution applies...

10.1017/jfm.2016.322 article EN Journal of Fluid Mechanics 2016-05-24

10.1016/j.ijmultiphaseflow.2023.104552 article EN International Journal of Multiphase Flow 2023-06-22

Abstract During plug and perf completion, perforation pressure drop is used to encourage a uniform distribution of flow between clusters by overcoming stress shadowing, variability, nonuniform breakdown pressure. However, proppant inertia, gravitational settling, erosion contribute nonuniformity, even with an aggressive limited-entry design. In prior work, Dontsov (2023) developed correlation for predicting outflow from the wellbore as function slurry velocity, phasing, other parameters....

10.2118/217771-ms article EN SPE Hydraulic Fracturing Technology Conference and Exhibition 2024-01-30

This study investigates the problem of a semi-infinite hydraulic fracture that propagates steadily in permeable formation. The fracturing fluid rheology is assumed to follow power-law behaviour, while leak-off modelled by Carter’s model. A non-singular formulation employed effectively analyse and construct numerical solution. under consideration features three limiting analytic solutions are associated with dominance either toughness, or viscosity. Transitions between all cases analysed...

10.1017/jfm.2017.856 article EN Journal of Fluid Mechanics 2017-12-20
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