Nitrogen gas with different displacing velocity and pressure was used to displace the core in testing, the permeability damage and correlation analysis caused by velocity sensitivity were obtained.
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2. 并在数模优化组合驱段塞构成的基础上，对不同渗透率的天然岩心与人造岩心进行了驱油实验。
Based on numeral simulation result of combination flooding composing, oil displacement experiments are carried out in different penetration ratio natural core and artificial core.
The results of core flooding experiment and the study of the propagation about the weak gel show that the agent has a high blocking rate and good selection which can modify the water profile well.
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4. 存水率和水驱指数是综合评价注水开发效果的两项重要指标。
Water storage rate and water drive index are two important targets for evaluating the effect of water injection.
When polymer relative molecular mass and its distribution width are the same, the polymer displacement efficiency increases with the increment of the core permeability variation factor.
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6. 综合运用前缘推进理论和经验回归方法，建立起一种聚合物驱产量和含水率变化规律的预测模型。
On the basis of frontal advance theory, and combining experience regression method, a prediction model for predicting production and water cut changing law is established.
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7. 宏华顶驱因其出色的性能和极低的故障率，在各个井场大放异彩。
Honghua's top drives shine at each well because of their excellent performance and low failure rate.
The variation of seepage velocity, resistance coefficient, reservoir permeability and oil recovery in porous media of water-drive reservoir in direct current (DC) electric field are studied in detail.
The calibration test results show that porous mortar is more appropriate than ceramic plate when used as capillary barrier in unsaturated seepage experiment and displacement experiment of fracture.
The quantity and distribution of remaining oil are dominated by the type of deposit rhythm, gravity and capillarity force, permeability and water flooding degree.
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11. 为在稠油热采蒸汽驱阶段提高注汽干度，进而提高稠油开采率，引进了高压汽水分离器。
During viscous crude oil steam flooding, a high pressure steam water separator is introduced to improve steam quality and then enhance recovery factor.
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12. 方法在试验人群暴露的下肢上均匀涂抹驱避剂，然后观察驱避剂的有效率和有效保护率。
Methods The mosquito repellent was painted on the lower limbs of the subjects on-the-spot, then the effective ratios and effective protection ratios were observed.
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13. 实验分析了聚合物溶液自身电阻率特征及聚驱前后岩石电性特征的变化。
The experiment analyzes electric character of the polymer solution and variety of the rock electric character before and after polymer flooding.
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14. 通过不同水样的岩心驱替实验，研究了注入水质对岩心渗透率的伤害率。
The damage to core permeability due to injection water quality is studied by means of core driving experiment with different water.
Properties of OCS surfactant were studied for application to Block 1219 in Dagang oilfield by measuring interfacial tension, solubilization capacity, adsorption amount and oil displacement efficiency.
A new method to calculate OOIP of each kind of oil well is established by means of integrating waterflood characteristic curve and relative permeability curve.
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17. 在裂缝发育带水驱油的形式主要取决于孔隙渗透率、裂缝渗透率以及驱替压力的大小。
The water drive patterns in fissure developing zones mainly depend on whether pore permeability, fissure permeability and displacement pressure are high or low.
This paper presents a novel method, a generalized water drive curve, that just one equation is applied to describe the variety types of water drive curves.
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19. 在近井地带由机械因素造成的渗透率降低，如碎片的驱替堵塞射孔孔眼或地层。
The reduction in permeability in the near-wellbore area resulting from mechanical factors such as the displacement of debris that plugs the perforations or formation matrix.
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20. 深层低渗透率油藏的渗流规律及水驱油特性具有特殊性。
The filtering flow rules and water-oil displacement characteristics in deep pay and low-permeability reservoirs has some specialities.
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21. 含水率曲线是研究水驱油田产水规律的基本曲线。
Water cut curve is the basic curve used to research the water-yielding rules of the water drive oilfield.
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22. 讨论了硝化棉干量、脱水棉及酒精驱水棉的水分含量以及乙醚加入量对药粒收缩率的影响。
The effects of NC dry weight, the water contents of dehydrated NC and centrifugal alcohol dehydrated NC and ether added quantity on the contracting percentage of grains have also been discussed.
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23. 利用目标储层岩心进行动态驱替实验，评价前置酸对储层岩心渗透率的改善性能。
Carried out dynamic displacement test with target reservoir core. Evaluated the improve performance of Pad-acid to permeability.
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24. 就驱避作用而言，高良姜的溶剂提取物对烟草甲成虫驱避作用较强，其平均驱避率达到了80％以上。
Alpinia officinarum solvent extracts had better repellent effect, and the average repellent rate were above 80%.
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25. 改进了可以预测水驱以及化学驱后续水驱阶段的最终采收率的新型采出程度与含水率定量预测模型。
The recovery of water flooding and subsequent water flooding following chemical flooding could be predicted by the improved new oil recovery and water cut quantitative prediction model.
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26. 对确定稠油油藏水驱曲线方法的极限含水率进行了研究，建立了含水率与平均单井日产油关系式。
And limited water cut of heavy oil reservoir by water flood curve method is studied, establishing the correlation of water cut vs average oil production of single well.
The shape and permeability distribution of the experiment model are similar with those of geological model. A completely contacted water line was designed to simulate the edge water incursion.
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28. 基质渗透率的降低、润湿性的改变以及毛细管压力的增大是储层驱油效率降低的主要因素。
Decrease of the oil displacement efficiency of the damaged reservoirs is mainly resulted from the reduction of matrix permeability, change of wettability and increase of capillary pressure.
