【摘要】 介绍了一种稳定的酯类化合物的合成方法，用于克服传统酯基钻井液在钻井过程中的酯水解问题。通过采用转酯化反应方法，合成的酯类化合物具有高热稳定性和水解稳定性。反应使用2-乙基己醇和月桂酸甲酯，在甲酸钠催化剂的存在下进行。通过响应面方法（RSM）和中央复合设计（CCD）评估了最佳合成条件，确定了最佳条件。结果表明：质量分数77%的2-乙基己酯与RSM模型之间存在高度一致性。该反应产物含有质量分数77%的2-乙基己酯和23%的2-乙基己醇。其运动黏度在40℃时为5 mm²·min^-1，在100℃时为1.5 mm²·min^-1；相对密度为0.854，闪点为170℃，倾点为-7℃。使用该配方的钻井液泥浆在120℃下具有优越的流变性能。更多还原

【Abstract】 A stable synthesis method for ester compounds was introduced,to overcome the ester hydrolysis problem of traditional ester based drilling fluids during the drilling process.The synthesized ester compounds have high thermal stability and hydrolysis stability through the use of transesterification reaction method.The reaction was carried out using 2-ethylhexanol and methyl laurate in the presence of sodium formate catalyst.The optimal synthesis conditions were evaluated using response surface methodology （RSM） and central composite design （CCD）,and the optimal conditions were determined.The experimental results indicated a high degree of consistency between 77%2-ethylhexyl ester and the RSM model.The reaction product contained 77%2-ethylhexyl ester and 23%2-ethylhexyl alcohol.Its kinematic viscosity was 5 mm²·min^-1 at 40℃and 1.5 mm²·min^-1 at 100℃;The relative density was0.854,the flash point was 170℃,and the pour point was-7℃.The drilling fluid mud using this formula had superior rheological properties at 120℃.更多还原