Journal ArticleDOI
Fluid Mechanics of Hydraulic Fracturing: a Review
TLDR
A review of the state of the art in multiphase fluid mechanics modeling of hydraulic fracturing, highlighting gaps in the body of knowledge and clarifying the questions that are still open.About:
This article is published in Journal of Petroleum Science and Engineering.The article was published on 2017-07-01. It has received 195 citations till now. The article focuses on the topics: Hydraulic fracturing.read more
Citations
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Journal ArticleDOI
Numerical methods for hydraulic fracture propagation: a review of recent trends
TL;DR: A review of the basic approaches for hydraulic fracture simulation can be found in this article, where the authors discuss both continuum and meso-scales numerical methods as well as engineering models which typically make use of additional assumptions to reduce computational cost.
Journal ArticleDOI
Role of proppant distribution on the evolution of hydraulic fracture conductivity
Jiehao Wang,Derek Elsworth +1 more
TL;DR: In this paper, a 2D model is presented to model the evolution of the residual aperture profile and conductivity of fractures partially/fully filled with proppant packs, and the model accommodates the mechanical response of proppers in response to closure of arbitrarily rough fractures.
Journal ArticleDOI
A predictive model for steady-state multiphase pipe flow: Machine learning on lab data
TL;DR: A method of pressure drop calculation in the pipeline based on well segmentation and calculation of the pressure gradient in each segment using three surrogate models based on Machine Learning (ML) algorithms trained on a representative lab data set from the open literature.
Journal ArticleDOI
Environmentally friendly techniques for high gas content thick coal seam stimulation─multi-discharge CO2 fracturing system
TL;DR: In this article, a multi-discharge CO2 fracturing system (Multi CO2 Frac) was proposed and tested in Changping coal mine, which can effectively improve coal seam permeability and further enhance gas drainage efficiency.
The Nature of Saltation and of Bed-Load Transport in Water
TL;DR: In this article, it has been shown that suspension by fluid turbulence of mineral solids larger than those of medium sands does not become appreciable until the bed shear stress is increased to a value exceeding 12 times its threshold value for the bed material considered.
References
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Journal ArticleDOI
Lubrication theory analysis of the permeability of rough-walled fractures
TL;DR: In this article, the Navier-Stokes equations that govern fluid flow are reduced to the more tractable Reynolds equation, which is valid for low Reynolds numbers and under certain restrictions on the magnitude of the roughness.
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Submarine granular flows down inclined planes
TL;DR: In this paper, the authors investigate sub-surface flows of granular material down a rough inclined plane and show that the constitutive law obtained in the dry case still holds for submarine flow, if one substitutes the inertial time scale coming into play in the rheology by a viscous time scale.
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Local determination of the constitutive law of a dense suspension of noncolloidal particles through magnetic resonance imaging
TL;DR: In this article, the authors investigate the flowing behavior of dense suspensions of noncolloidal particles, by coupling macroscopic rheometric experiments and local velocity and concentration measurements through magnetic resonance imaging (MRI) techniques.
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Migration of rigid spheres in a two-dimensional unidirectional shear flow of a second-order fluid
B. P. Ho,L. G. Leal +1 more
TL;DR: In this article, the lateral migration of a neutrally buoyant rigid sphere suspended in a second-order fluid is studied theoretically for unidirectional two-dimensional flows, and the authors demonstrate the existence of migration induced by normal stresses whenever there is a lateral variation of the shear rate in the undisturbed flow.
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Fluctuations and Instability in Sedimentation
Elisabeth Guazzelli,John Hinch +1 more
TL;DR: In this article, the correlation length of the velocity fluctuations was found experimentally to be 20 interparticle separations and a vertical variation in the concentration due to the spreading of the front with the clear fluid can inhibit velocity fluctuations.