用连续油管替代常规油管进行冲洗作业，可充分发挥挠性油管能够连续起下和密封可靠的特点；但因管径较细，曲迂度很大，使摩阻增高，如循环介质粘度大，则形成进出口间压差较大。文中提出降低设备输出排量，缓减 Ｃ Ｔ 中的液流速度，降低摩阻，在 Ｃ Ｔ 冲洗方式上采用５ 种冲洗方式，计算出施工中最低排量等。在现场进行冲砂解堵解卡应用中取得效果。 Coiled tubing instead of the conventional tubing for flushing operations, can give full play to the flexible tubing can be up and sealed continuously from the characteristics; but because of small diameter, large curvature, so that the friction increases, such as circulating medium viscosity, The formation of a larger pressure difference between the import and export. This paper proposes to reduce the output of equipment, reduce the flow rate in CT, reduce the friction, and adopt 5 kinds of flushing methods in CT flushing method to calculate the minimum displacement in construction. In the field of red sand block solution card application to obtain results.