根据钻井液中泥页岩钻屑微粒带负电的特征，研究一种新的控制钻井液流变性的方法一电场法。室内试验表明，用本法处理钻井液，可以清除目前井上使用的三级固控设备无法清除的钻屑微粒，对２μｍ以下固相微粒尤其有效，因而能达到控制和调整钻井液流变性之目的。 According to the characteristics of negative charge of drilling shale particles in drilling fluid, a new method of controlling the rheology of drilling fluid is studied. Laboratory tests show that using this method to treat drilling fluid can remove the drill cuttings particulates that can not be removed by the current three-stage solid-control equipment used in the well, and is particularly effective for the solid particles below 2μm, so as to achieve the purpose of controlling and adjusting the rheological properties of the drilling fluid .