本文结合理论分析和实验来研究膨胀筛管完井后产能，并与一般机械防砂方式进行了分析对比。
The results show that the expansion screen completion is more advantageous in open hole completion than in cased hole completion compared with the mechanical sand control completion.
通过改进，克服了原来一次性高压充填机械防砂技术有效期短的缺点，有效提高了一次性防砂成功率。
The period of validity of one-off high pressure pack mechanical sand control technology has been extended. The success ratio of one-off sand control has been improved.
对于严重出砂地层的油水井，即使采取了机械或者化学防砂措施，也不能保证油水井的长期稳产，不得不提出防砂管柱进行更换。
Generally, it is not enough to take mechanical or chemical sand-prevention methods for those high sand production Wells, resulting in replacing the sand-prevention tubings.
对于严重出砂地层的油水井，即使采取了机械或者化学防砂措施，也不能保证油水井的长期稳产，不得不提出防砂管柱进行更换。
Generally, it is not enough to take mechanical or chemical sand-prevention methods for those high sand production Wells, resulting in replacing the sand-prevention tubings.
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