This paper, on the basis of elaborating the structure of expandable screen and the mechanism of sand control, analyzes and compares the advantages and disadvantages of well completion technology of sand control by means of expandable screen.

• 摘要可膨胀筛管防砂完井技术是一种新型的防砂技术，在对可膨胀筛管的结构、防砂机理等方面进行阐述的基础上，对其优缺点进行了对比和分析。