The displacement experiments were made by using artificial core, natural outcrop sandstone core, natural sandstone core in oil field and simulated oil.
使用人造岩心、天然露头砂岩岩心，天然油田砂岩岩心及模拟油进行了驱替实验。
The effect of inorganic salt on spontaneous imbibition and recovery factor of surfactant flooding has been studied under water-wet condition with outcrop sandstone cores.
利用国产露头砂岩岩心，研究了亲水条件下，无机盐对岩心采用表面活性剂溶液进行自发渗吸驱油的规律和采收率的影响。
Sited on a sandstone outcrop, Nottingham Castle was rebuilt as a duke's mansion in the 1670s after the original structure had been destroyed during the English Civil War.
诺丁汉城堡最早期的建筑在英国内战时期遭到损毁，1670年在砂岩的突出部上又重新建成公爵的城堡。
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