石油钻采工艺Issue(3)：1-6,6.DOI:10.13639/j.odpt.2014.03.001
大位移水平井段岩屑运移实验研究
Experimental research on cuttings transport in extended-reach horizontal well
摘要
Abstract
Cuttings transport experiment device for extended-reach horizontal well was established based on the similarity system theory. The parameters similarity between the model and the prototype was deduced using the similar particle Reynolds number. Then, research was made on the variation of 10 parameters(i.e. annular velocity, mud density and effective viscosity, cuttings density and size, drillpipe rotation speed and eccentricity, inclination angle, rate of penetration and borehole size) with the dimensionless cutting-bed thickness. On this basis, a steady dimensionless cutting-bed thickness equation for extended-reach horizontal well was established with the nonlinear regression method, and the model was veriifed through literatures. The model provides a signiifcant guidance for borehole cleaning of minimum cuttings transport lfux and the optimization of ROP for extended-reach horizontal wells.关键词
水平井/岩屑运移/相似原理/岩屑床厚度/偏心环空/理论模型Key words
horizontal well/cuttings transport/similarity principle/cutting-bed thickness/eccentric annulus/theoretical model分类
能源科技引用本文复制引用
相恒富,孙宝江,李昊,牛洪波..大位移水平井段岩屑运移实验研究[J].石油钻采工艺,2014,(3):1-6,6.基金项目
国家科技重大专项“海洋深水油气田开发工程技术”（编号2011ZX05026-001-02）；教育部创新团队发展计划资助（编号RT1086）；中央高校基本科研业务费专项资金资助（编号13CX02072A）。 （）
