Laboratory test shows that core plugging rate by using the agent is over 90%, recovered rate of permeability is over 85% after washing with water for a long period of time.
室内实验表明，该堵剂可使岩心堵塞率达到90%以上，用地层水长时间冲刷后，渗透率恢复值在85%以上。
The test and popularization results of the method of putting in stalk through pulling apart core by Using the long core barrel in Sichuan hard rocks are simply presented in this article.
本文简要介绍了拨断岩心接单根方法在四川硬地层长筒取心中的试验和推广效果。
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