中文摘要：

根据大斜度井注水泥过程中的流动受力特点,建立了注水泥顶替模拟的室内实验装置,完善并配套了实验装置的各功能部件,确定了注水泥顶替过程中模拟实验的操作方法和步骤.利用加工成型的该套实验装置,进行了不同井斜角、偏心度及宾汉模式下水泥浆动切力和塑性黏度等对注水泥顶替过程的实验研究,并将实验结果与目前成熟的数值模拟研究结果进行对比.结果表明：随着井斜角增大,注水泥顶替界面逐渐伸长;在大斜度井环空正密度差顶替时,随着偏心度的增大,顶替界面逐渐变短;增大水泥浆的动切力和塑性黏度,顶替界面变短,其整体顶替效率增加.实验研究所得到的结果与数值模拟所得到的结果基本一致,证明了该套模拟实验装置进行注水泥实验研究的合理性.

英文摘要：

Based on the analysis of flow force characteristics during cementing process of highly deviated wells,the paper proposed the ideas of establishing an indoor experimental device for simulate cementing displacement,improved and matched the various functional components of the experimental device,and determined the operation method and procedure of simulation experiments.The experimental device was used to research influence laws of well inclination,casing eccentricity,dynamic shear force and plastic viscosity of cement slurry on displacement process.Comparison of the experiment results with results by numerical simulation sho7wed that in highly deviated wells,as the well inclination increased,the displacement interface gradually longer.When positive density difference increases,the displacement interface increases longer.The dynamic shear force and plastic viscosity of cement slurry increase,the displacement interface gradually becomes shorter and the overall displacement efficiency is improved.The consistency of compared results proved this experimental device is reasonable.The indoor experimental device lay a foundation for looking measures to improve cementing quality.Meanwhile,it also provides a good validation for the implementation effect of various measures and correctness of the theoretical research.