支撑剂回流室内研究

Laboratory study of backflow of proppant

当前的支撑剂回流的研究主要是以物理模型实验为主,围绕缝宽、闭合应力、流速三个主要参数进行室内实验基础上的定性分析和为数不多的定量分析。系统分析了影响支撑剂回流的诸多因素中四个较为重要的参数,介绍了当前国外研究支撑剂回流的三套实验装置的原理、方法,并提出了建议。

Current study of backflow of proppant is dominated by physical model experiment. Based on laboratory experiments of the three major parameters including fracture width, closure stress and velocity of flow, qualitative and a few quantitative analyses are carried out. This paper systematically analyzes the four major parameters that influence backflow of proppant, introduces the principles and methods of three sets of oversea experiment apparatuses used to study backflow of proppant. It also presents some proposals.