为了恢复或提高产量，需要对堵塞的可能原因进行评估，包括对地下水进行化学分析和对地下土壤进行机械分析。一旦确定堵塞的可能原因，就可以制定最合适的治疗方案。作者讨论了对松散地层中的油井进行此类测定所涉及的原则，并描述了印第安纳州Terre Haute恢复生产井的案例。包括2个参考文献、表格和图表。

Cleaning wells to restore or improve production requires an evaluation of the probable causes of clogging, which includes a chemical analysis of the groundwater and a mechanical analysis of subsurface soils. Once the probable cause or causes of clogging are determined, the most appropriate treatment can be prescribed. The authors discuss the principles involved in making such determinations for wells in unconsolidated formations and describe a case history of restoring a production well in Terre Haute, Indiana. Includes 2 references, tables, figures.