Thehorizontalmigrationofproppantwasnumericallyinvestigatedwithatwo-fluidmodel,inwhichtheinteractionbetweenfracturingfluidandproppant,alongwiththatamongproppantswastakenintoaccountthroughinterphaseforces.Themigrationprocessandthevolumetricconcentrationoftheproppantwereexaminedundervariousconditions,andtheaveragedvolumetricconcentrationoftheproppantwasobtained.Thepresentresearchmightbeusefulintheprocessdesignofthehydraulicfracturingintheoilfields.