收稿日期: 2016-02-25
网络出版日期: 2016-11-15
基金资助
中国科学院“百人计划”项目（111800M105）、国家自然科学基金（51374190，51574091）和中国科学院空间科学先导专项（XDA04078400）资助
Design of Halbach-type magnetic field for paraffin control in oilfield
Received date: 2016-02-25
Online published: 2016-11-15
廖艳飞 , 王晓东 , 那贤昭 . 油井磁防蜡技术中的Halbach型磁场的设计[J]. 中国科学院大学学报, 2016 , 33(6) : 753 -757 . DOI: 10.7523/j.issn.2095-6134.2016.06.006
Two strucutres of the permanent magnetic field have been designed for paraffin control in oilfield. Generally, the favorable design for such magnetic field meets the following two structural requirements. The magnetic flux densities in paraffin deposit zone in the cross-sectional direction are as strong as possible, and the gradients of magnetic flux density in the axial oil passage are as big as possible. Based on the concept of Halbach magnetic field, two structures have been designed and numerically analyzed to meet the above requirements for the purpose of the paraffin control. The results confirmed our conceivement and may serve as the application of the magnetic field construction for paraffin control in oilfield.
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