对支撑剂表面进行疏水处理可以使其在支撑裂缝、防砂的同时起到降低油田产出水的目的。疏水表面处理方法共分为普通疏水及超疏水两大类。普通疏水表面制备方法分为表面活性剂、有机硅材料、含氟材料3个方面；超疏水表面制备方法分为溶胶-凝胶法、电纺法、模版法、层层自组装法和刻蚀法。对其处理结果等进行对比，结合现场已有的抑水支撑剂应用情况，提出将疏水表面制备方法应用于支撑剂。使用表面活性剂对石英表面进行疏水性改造实验，发现阳离子表面活性剂十六烷基三甲基溴化铵（CTAB）的效果最好，接触角由13．7°增大到73．2°。此时表面张力为48．88 m N/m ，吸附量为0．292 m g/g。%Proppant hydrophobic surface treatment can make proppant reduce oil field produced water while support fracture , control sand .The hydrophobic surface treatment method in terms of both ordinary hydrophobic and superhydrophobic was summed up .The ordinary hydrophobic surface preparation method is divided into three aspects of surface active agent ,organic silicon material , fluorine-containing material ;the superhydrophobic surface preparation method is divided into the sol-gel method ,electrospinning method ,template method ,layers of self-assembly and etching method .Those preparation methods was compared ,combined with the situation that water suppression proppant was applied to the field ,proposed the hydrophobic surface preparation method was applied to the proppant .Using surfactant hydrophobic modification experiments on quartz surface ,the effect of the cationic surfactant CTAB is best ,contact angle on the surface of the quartz from 13 .7° increases to 73 .2° ,the Surface tension is 48 .88 mN/m ,the adsorption capacity of 0 .292 mg/g .Finally ,it is conceived that hydrophobic surface modification methods was applied to other oilfield areas .
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