The mechanical sand - bailing technology makes sand - washing operation more efficient.

介绍了机械捞砂的结构装置及工作原理,提出了现场操作注意事项.

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Therefore, reservoir protection packer sand washing technique is adopted to solve this problem.

因此, 研究采用保护油层封隔器冲砂技术,来解决这一问题.

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