The quantity and distribution of remaining oil are dominated by the type of deposit rhythm, gravity and capillarity force, permeability and water flooding degree.
剩余油的数量、分布情况受油层沉积韵律类型、重力作用、毛管力作用、油层渗透率、水驱强度等多种因素的制约。
PPG as a new type of immiscible polymer flooding system was studied for the purpose of enhancing the oil recovery of after polymer flooding reservoirs.
针对聚合物驱后油藏缺乏有效提高采收率接替技术的问题，研发了新型非均相聚合物驱油剂PPG产品。
Numerical simulation and core experiment show that wide molecule weight polymer is recommendable for polymer flooding in the second type reservoir.
数值模拟及岩心实验表明，二类油层聚合物驱油适宜采用宽分子量聚合物驱油，可以获得更好的聚合物驱油效果。
A new-type tracer was studied and contrasted with the acticarbon tracer in logging for water flooding oil field. The using effect showed that the tracer was better than the acticarbon tracer.
研究了一种油田用新型同位素示踪剂，并与以活性炭为载体的同位素示踪剂进行了对比研究，应用表明使用效果良好。
Abstract : To address the issue of "gas lock" caused by CO2 gas-channeling in gas injection wells, the forced pull rod type hollow gas prevention pump for CO2 flooding has been developed.
摘要 ：针对注气井CO2气窜而造成生产井气油比上升，常规管式泵游动阀打不开而导致的“气锁”问题，研制了CO2驱中空强制拉杆式防气泵。
Statistic data shows that the porosity increased a little with 0.58% of the average change rate after long-term water flooding in every-type of oil-bearing reservoirs in Lamadian oilfield.
统计资料表明，喇嘛甸油田各类油层，长期注水冲刷后，孔隙度值略有增加，但变化率不大，平均只有0.58%。
Statistic data shows that the porosity increased a little with 0.58% of the average change rate after long-term water flooding in every-type of oil-bearing reservoirs in Lamadian oilfield.
统计资料表明，喇嘛甸油田各类油层，长期注水冲刷后，孔隙度值略有增加，但变化率不大，平均只有0.58%。
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