摘要
室内对钻井液磁化条件试验研究表明，最佳磁化参数为：磁化器磁场强度２５００ｋＡ／ｍ，磁化时间１～２ｈ，温度高低对磁化作用影响不大。对川东地区深探钻井的常用钻井液体磁化试验表明，磁化后钻井液塑性粘度降低１０％～３０％，终切力降低１２％～３０％，抑制泥页岩膨胀能力及分散能力分别提高１５％和７％。
The indoor experimental results of the magnetizing conditions of the drill fluid have shown that the optimal magnetizing parameters include that the magnetic field intensity reaches 2 500 kA/m and the magnetic time is 1～2 hours and there is a lower influence on the temperature to the magnetizition in the paper.The indoor magnetizing and the field application for the drill fluid commenly used into the deep drilling in the Eastern Sichuan have been especially made and it has been also found that after the drill fluid was magnetized, its plastic viscosity drops to 10%～20% and its shear spress drops to 12%～30%, but the ability of controlling the expanse of shale swelling and the ability of despersion are respectively raised 15% and 7%.
出处
《桂林工学院学报》
CAS
1999年第2期131-134,共4页
Journal of Guilin University of Technology
基金
成都理工学院与川东钻探公司的协作项目
