石油钻采工艺2025，Vol.47Issue(6)：748-756,9.DOI:10.13639/j.odpt.202506007
基于图像追踪和Logistic模型的纤维悬砂性能评价方法
Evaluation method for fiber-assisted proppant suspension performance based on image tracking and Logistic model
摘要
Abstract
This study innovatively proposes a new method to quantitatively evaluate the performance of fiber-assisted proppant suspensions and to address the challenge of characterizing proppant settling velocities in fiber-laden fracturing fluids.An integrated analysis framework is developed combining image tracking with the Logistic model.Firstly,image analysis technology is used to track the proppant solid-liquid interface and obtain time-resolved settling data.Subsequently,the resulting settling curves are fitted with the Logistic model to obtain key model parameters.Finally,the proppant settling velocity is derived from the fitted model,and fiber-assisted proppant suspension performance is evaluated under different conditions.The results show that fibers substantially reduce the proppant settling velocity,and that the settling process can be divided into three stages:acceleration,quasi-uniform velocity,and deceleration.Data indicates that increasing fiber concentration from 0%to 0.5%decreases the settling velocity from 61.42 mm/min to 4.98 mm/min,corresponding to a 91.9%reduction.Further sensitivity analysis ranks the influencing factors on settling velocity as follows:fiber concentration,plate seam width,fluid viscosity,fiber length,and cylinder inner diameter.The method proposed herein provides a rigorous theoretical and experimental basis for quantifying fiber-assisted proppant suspension performance and offers practical guidance for optimizing fracturing-fluid formulations and the design of operational parameters.关键词
支撑剂/纤维悬砂/Logistic模型/沉降规律/图像追踪Key words
proppant/fiber-assisted proppant suspension/Logistic model/settlement pattern/image tracking分类
能源科技引用本文复制引用
LIU Yuxuan,WU Liansong,GUO Jianchun,JIANG Minghao,JIANG Bo,YAN Dingli,CHEN Dingyuan..基于图像追踪和Logistic模型的纤维悬砂性能评价方法[J].石油钻采工艺,2025,47(6):748-756,9.基金项目
国家自然科学基金项目"深层页岩气压后支撑裂缝非线性闭合机制及导流能力模型研究"(编号:52474048). （编号:52474048）
