Analysis of Pressure and Tip Stress in Hydraulic Fracture under Unstable Fluid Injection Condition
Shiyou jixie, 2018 To understand the pressure and tip stress change in hydraulic fracture during unstable fluid injection, the calculation model of fluctuating pressure in wellbore under unstable fluid injection condition was established using fluid mechanics theory.
Tong Shaokai, Gao Deli
doaj
Journal of Applied Science and EngineeringFor deep coalbed methane (CBM) exploitation, it is very important to control hydraulic fractures in coal seam to avoid the decrease of fracturing energy caused by crossing coal-rock interface.
Dongjie Jiang +7 more
doaj +1 more source
Time-Dependent Effect of Seepage Force on Initiation of Hydraulic Fracture around a Vertical Wellbore. [PDF]
Materials (Basel), 2023 Rim H +5 more
europepmc +1 more source
Explicit versus implicit front advancing schemes for the simulation of hydraulic fracture growth [PDF]
The proper computation of the time evolution of the fracture front is the main challenge of three-dimensional (3D) hydraulic fracture growth simulation. We discuss explicit and implicit variants of a hydraulic fracture propagation scheme based on a level
Lecampion, Brice, Zia, Haseeb
core +1 more source
Critical expansion points: Mechanical signs of surrounding rock instability
Deep Underground Science and Engineering, EarlyView.This study proposes the Rock Bearing‐Expansion Model (RockBEM) with critical expansion points (CEPs) to quantify post‐peak damage stages in deep‐buried rock masses via plane strain compression test (PSCT). CEP hysteresis&interval ratios reveal bearing performance dynamics and failure severity, advancing mechanistic insights into deep underground rock ...
Jiaqi Wen +4 more
wiley +1 more source
Hydraulic Fracture Propagation and Analysis in Heterogeneous Middle Eastern Tight Gas Reservoirs: Influence of Natural Fractures and Well Placement. [PDF]
ACS Omega, 2021 Al Mteiri S +3 more
europepmc +1 more source
Simulation of hydraulic fracture propagation using unstructured triangular mesh elements
, 2019 A computational method is presented for the simulation of fluid-driven fracture propagation in a planar crack using unstructured triangular mesh elements.
Napier, John
core
An optimizing microseismic method for rock burst early warning based on mining production process
Deep Underground Science and Engineering, EarlyView.A classification early warning method of rock burst based on hourly microseismic data is proposed, which can be combined with the on‐site production process to provide more timely warning. Abstract Microseismic (MS) events have been reported in nearly every coal mining country, which could well lead to rock burst in underground coal mines.
Zepeng Han +6 more
wiley +1 more source
Modelling of a planar hydraulic fracture with three different approaches
, 2019 In the talk, we present our recent developments of the modelling of a planar hydraulic fracture in an inhomogeneous reservoir. The hierarchy of models includes the Enhanced Pseudo 3D (EP3D) model [1] coupled with the proppant transport, the Planar 3D ...
Golovin, Sergey
core
Deep Underground Science and Engineering, EarlyView.Our study reveals that caving‐enhanced geothermal systems (C‐EGS) with adequately fractured reservoirs achieve optimal heat extraction by minimizing preferential flow paths, while conventional fracturing (F‐EGS) and pipe‐based (P‐EGS) systems suffer accelerated thermal drawdown.
Fangchao Kang +4 more
wiley +1 more source