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1.The polymer flooding is an ideal EOR method, but needs to select reasonable injecting polymer pressure gradient(threshold pressure gradient) which makes polymer solution slug advance even in heterogeneity formation, then improves water entry profile and increases oil recovery.
聚合物驱是较理想的提高采收率方法,但需选择合理的注聚压力梯度(阈压梯度)才能使聚合物溶液段塞在非均质油层中较均匀推进,从而更有效地改善油层吸水剖面和提高原油采收率。收藏指正
2.Aiming at the abnormal strata behavior in the advance entry of 1303 fully-mechanized working face in Xinglongzhuang coal mine, the movement rule, characteristic, step distance of fracturing, position and mode of fracturing of the overlying strata in mining process is analyzed by using the key strata theory.
摘要针对兴隆庄煤矿-采区1303综放工作面超前平巷发生奇异压力的现象,采用关键层理论对在采动过程中的上覆岩层运动规律进行了详细的力学分析,研究了它们的运动特征、破断步距、断裂位置、断裂方式以及对工作面及其超前平巷的来压规律,对比分析了该工作面矿压实测数据与理论研究成果。收藏指正
3.Please register in the given time issued in the Admission Letter, and registration ahead of schedules is not acceptable; please ask for our approval in advance, if can not register on time for particular reason, otherwise regarded as giving up the qualification for entry.
请您根据学通知书规定的报到日期来校报到,学校不接待提前报到;如有特殊原因不能按时来校报到;请您提前征得我校同意,否则按放弃学资格处理。收藏指正
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