深井水基钻井液流变性调控机理研究

Controlling mechanism of rheology of water -base
drilling fluid in deep well

 王富华 王力 张祎徽

 中国石油大学石油工程学院，山东东营257061

(College of Petroleum Engineering,
China University of Petroleum, Dongying 257061, China),

 分析了深井水基钻井液流变性的影响因素，得出了温度、钻井液中固相含量是影
响钻井液流变性的两个重要因素，提出了深井水基钻井液流变性的调控思路与方法。按照该技
术思路，通过增强钻井液体系的抑制性，降低钻井液中固相颗粒的分散度，大幅度降低钻井液
中的膨润土含量和总固相含量等几种方法结合实现对钻井液流变性的调控。最后提出了聚合
物钻井液、水包油乳化钻井液、聚醚多元醇钻井液的流变性调控措施。

Analysis of the influential factor of rheological property in
deep-well water-based drilling fluid shows that the influence
of temperature and solidphase content in drilling fluid are the
two important factors on drilling fluid rheological property. The
method for rheological property regulation of the deep -well
water -based drilling fluid is suggested. According to this
technical thought,four methods associated have been studied
to achieve regulation and controlling of rheological property of
the drilling fluid,including heightening the inhibition of
drilling fluid system,improvement of the solid granular
dispersion in the drilling fluid,declination of the bentonite
content in the drilling fluid and the total solid content. In the
end,this paper proposes the regulating and controlling
measures of polymer drilling fluid, reverse emulsion drilling
fluid and polyether glycol drilling fluid.