膨胀筛管防砂技术的研究及应用

膨胀筛管防砂技术是针对稠油、超稠油油藏研究的一种新技术，可以实现筛管的径向膨胀和收缩，消除套管与筛管之间的砂环，延长筛管防砂有效期，解决打捞作业困难问题。室内实验和现场试验证明了该技术具有良好的膨胀收缩性能，施工简便，打捞作业容易，防砂生产效果明显，具有良好的应用前景。

Study and application of expandable screen pipe for sand control

Sand control by expandable screen pipe is a new technique for heavy and super - heavy oil reservoir. This screen pipe can expand and shrink in radial direction to eliminate the sand ring between casing and screen pipe, prolong validity of sand control, and solve fishing problem. It has been proved through indoor and field test that this screen pipe has good expansion and shrinking ability, is easy to operate and fish, and effective in sand control. It has a prospecting future.