【摘要】 文章介绍了喷射钻头井底流场的研究情况,其中包括:井底场液流流向、井底液流压力、井底排屑量、井底场环空速度、不等径喷嘴组合钻头的水力侧向力、喷嘴合理射流角度的实验观测,有数据、有分析、有现场试验应用情况。更多还原

【Abstract】 A brief introduction is made of the subject, object, method and field experiment of the study, besides giving a short description of the present status of our research work on the tool and the prospect of its application.更多还原