The present disclosure relates to the technical field of oil and gas drilling, and particularly relates to a modified silicon dioxide material of a fluorocarbon active agent type super-amphiphobic cutting-carrying agent suitable for a water-based drilling fluid, and a preparation method thereof. The preparation method of the modified silicon dioxide material comprises the following steps: subjecting silicon dioxide and a silane coupling agent represented by Formula (1) to a first contact reaction in a mixed solvent containing alcohol and water; subjecting the product of the first contact reaction, the compound represented by Formula (2) and the compound represented by Formula (3) to a second contact reaction; subjecting the product of the second contact reaction and the compound represented by Formula (4) to a third contact reaction. The modified silicon dioxide material can be used as a cutting-carrying agent in a water-based drilling fluid and produce an excellent cutting-carrying effect.
本公开涉及油气钻井技术领域,尤其涉及一种适用于
水基钻井液的
氟碳活性剂型超疏
水性切削携带剂的改性
二氧化硅材料及其制备方法。该改性
二氧化硅材料的制备方法包括以下步骤:将
二氧化硅和由式(1)代表的
硅烷偶联剂在含有醇和
水的混合溶剂中进行第一次接触反应;将第一次接触反应的产物、由式(2)代表的化合物和由式(3)代表的化合物进行第二次接触反应;将第二次接触反应的产物和由式(4)代表的化合物进行第三次接触反应。改性
二氧化硅材料可用作
水基钻井液中的切削携带剂,并产生极佳的切削携带效果。