| 摘要 |
The present disclosure provides plugs, plug systems and methods for using these plugs and systems in subterranean wells. An example of a system of the present disclosure is a plug system for separating fluids successively introduced into a passage comprising: an assembly comprising a plurality of plugs, wherein at least one plug comprises an outer body and a detachable inner mandrel attached to the outer body; and wherein the plurality of plugs are releasably attached to each other. (62) Divided Out of 547126
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