A wellbore obstruction caused by a buildup of material such as scale, wellbore fill or cuttings that can restrict wellbore access or, in severe cases, eventually close the wellbore.

由水垢、井筒充填物或岩屑等物质的堆积所造成的井筒障碍物，这些物质会限制井筒的通路，严重时最终使井筒关闭。

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A wellbore obstruction caused by a buildup of material such as scale, wellbore fill or cuttings that can restrict wellbore access or, in severe cases, eventually close the wellbore.

由水垢、井筒充填物或岩屑等物质的堆积所造成的井筒障碍物，这些物质会限制井筒的通路，严重时最终使井筒关闭。

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