采收率

Organization: Production Department of China National Offshore Oil Co., Ltd.Abstract: This paper introduces a water plugging process injecting degassed oil into water yielding layer, which creatively applies oil and gas reservoir relative permeability theory.

摘 要：介绍一种向出水层注脱气原油的堵水工艺，主要是创造性地应用了油、气藏相对渗透率理论，探索出一种具有堵水施工简单、堵水剂可就地取材和堵水成本低等优点的能提高油田采收率的新工艺。

The experimental results show that the displacing agent M can greatly enhance oil recovery.

实验结果表明，M驱油剂可大幅度提高水驱原油采收率。

Recent years,the important measure to increase the crude oil recovery ratio is using displacing fluid.

近年来，提高原油采收率的重要措施是使用驱替液。

For the sake of exploiting out more residual oil in the reservoir and enhance the recovery efficiency, people have excogitated many techniques from 1950's.

为了开采出大量残留在油藏中的剩余油，提高采收率，自50年代起，至今人们已经研究出了许多方法。

Hydrolyzed polyacrylamide has been widely used in oil field for boosting the crude oil recovery ratio.

水解聚丙烯酰胺被广泛应用于油田以提高原油的采收率。

It is restricted by geologic setting of coal bed formation and geometric configuration of borehole to utilize multiple laterals horizontal well to develop coal bed methane resources.

1引言多分支井技术是在定向井、大位移井和水平井技术基础上，迅速发展起来的一项石油开采技术，它可以大大提高油藏的采收率，降低油藏开采综合成本，经济效益十分显著，应用前景十分广泛，是21世纪油气田开发的主体工艺技术之一。

The results show that the bacterium FH can metabolize in oil formation rather than one of parents strains, which notated as bacterium JD, show that the microbial polysaccharide, which bacterium FH producing in porous media, commendably can close off big channel, can adjust injection profile, can enhance recovery efficiency of water driving oil in nonhomogeneous formation.

研究表明：FH菌比其中的亲本菌JD菌能更好的适应油藏条件；FH菌在多孔介质中能够很好的封堵大孔道，调整水驱的吸水剖面，增加非均质油层的采收率。

The experiment, simulating the depletion drive development with constant-volume, studied the influence of gas production of a single layer when double layers commingled production under different initial pressures, the changing rule of pressure, gas production contribution of a single layer, gas recovery efficiency, prorating production and initial pressure difference of high-Low gas reservoir on production.

结合气藏实际，采用气藏天然岩心，建立了高低压双气层无窜流物理模型，实验模拟气藏定容衰竭开采方式，研究了不同初始压力双气层合采时单层产气、压力变化规律，单层产量贡献特征，气层采收率，配产、高低压气层初始压差对生产的影响等方面，取得了一定的认识。

According to the special requirements of offshore oil field development and the theoretical calculations, the paper analyzes the difference between heating method and gas injecting method in viscous oil production and discusses the feasibility of reinjecting natural gas in development of offshore undersaturated viscous oil field .

根据海上油田开发的特殊要求，通过理论计算，对比分析了用加热降黏法和加气降黏法进行稠油开采的差异，探讨了欠饱和稠油油田用天然气回注地层降黏的可行性，认为在原始地层压力条件下，仅向地层原油中补充溶解气油比是原始溶解气油比的 0 。5～ 1.5倍的天然气，就可以有效地降低原油黏度，提高采收率。

Cased well sidetracking technology is rapidly developed and widely applied in recent years for its obvious advantages of improving oil recovery of old oil fields.

套管开窗侧钻作为老油田提高采收率的技术，因其明显的优势，近年来得到了迅速发展和广泛应用。

And Pharaoh spoke to Joseph, saying, Your father and your brothers have come to you.

47：5 法老对约瑟说，你父亲和你弟兄们到你这里来了。

Additionally, the approximate flattening of surface strip using lines linking midpoints on perpendicular lines between geodesic curves and the unconditional extreme value method are discussed.

提出了用测地线方程、曲面上两点间短程线来计算膜结构曲面测地线的方法，同时，采用测地线间垂线的中点连线和用无约束极值法进行空间条状曲面近似展开的分析。