对常见故障井的修复方法，特别是用油田修井技术对比较复杂的故障进行了详细介绍和对比。

Detailed introduction and comparison are made on restoration methods of Wells with common failures, especially on comparatively complicated failures with well repairing technique of oil field.

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古吉拉特邦的一些重要遗址最近已经进行大规模的修复，邦政府在去年6月也宣布，他们计划修复整个古吉拉特邦的阶梯井。

Some important sites in Gujarat have recently undergone major restoration, and the state government announced in June last year that it plans to restore the stepwells throughout the state.

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通过对不同减压井淤堵机理的分析，得出了不同的修复方法及预防措施的结论。

Through analysing the clogging mechanism of different relief-wells, the conclusions are obtained on different rehabilitation methods and prevention measures.

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