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displacing efficiency
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  驱油效率
     ③ introducing CO 2, N 2, N 2+CO 2 dramatically improves oil displacing efficiency of steam in cores.
     ③加入CO2 ,N2 +CO2 和N2 可极大幅度地提高蒸汽在岩心中的驱油效率
短句来源
     Study of the Coefficient of Resistance and Residual Resistance Factor and Displacing Efficiency of Hydrophobically Associating Polymer
     疏水缔合聚合物的阻力系数和残余阻力系数及驱油效率研究
短句来源
     Reservoir Pore Structure and Its Effect on Displacing Efficiency,4-7 Sand Sets of the Upper 2~(nd) Member of the Shahejie Formation,Nanqu,Pucheng Oilfield
     濮城油田南区沙二上4-7砂层组储层孔隙结构及与驱油效率的关系
短句来源
     By the laboratory physical simulation experiments we investigate the effect of polymer and surfactant in ASP slug on oil displacing efficiency, the experimental study on reducing the chemical amount are also conducted. The results show the viscosity ratio of ASP system and crude oil should be in the rang of 2∶1-5∶1 that the ASP flooding can improved the oil displacing efficiency by 20%OOIP;
     通过室内物理模拟实验 ,研究了三元体系中聚合物、表面活性剂浓度对驱油效果的影响 ,并进行了降低化学剂用量的实验研究 ,结果表明 ,三元体系与原油粘度比控制在 2∶1~ 5∶1范围内 ,驱油效率才能达到 2 0 %以上 ,在适当的聚合物用量条件下 ,可以降低三元体系中的表面活性剂和碱的用量 ;
短句来源
     The ASP flooding can greatly enhance oil recovery by increasing the swept efficiency and displacing efficiency.
     因此,三元复合驱可以提高波及效率和驱油效率,从而大幅度提高了原油采收率。
短句来源
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  顶替效率
     The casing offcenter is a key factor to effect the displacing efficiency.
     套管偏心是影响顶替效率的关键因素。
短句来源
     To ensure the cementing quality of well Pujian3, three key problems of cementing technology were solved, which were: lost circulation prevention, displacing efficiency improvement and cement slurry proper optimization.
     为保证濮检 3井的固井质量 ,该井固井技术主要解决了 3个重点问题 :防漏失、提高顶替效率、优化水泥浆性能。
短句来源
     RESEARCH ON RAISING SLURRY DISPLACING EFFICIENCY IN A SLIM HOLE
     提高小井眼水泥浆顶替效率的研究
短句来源
     It is one of the important factors of ensuring the seal quality of cement sheath in a small clearance to raise slurry displacing efficiency in a slim hole.
     提高小井眼水泥浆的顶替效率 ,是保证小间隙水泥环密封质量的重要因素之一。
短句来源
     The wall shear stress caused by cement slurry flowing in the annular space is a key element that affects the displacing efficiency.
     水泥浆环空流动的壁面剪应力是影响顶替效率的关键因素。
短句来源
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  “displacing efficiency”译为未确定词的双语例句
     On artificial cores of Kg=0.9~1.3μm~2, the displacing efficiency of 1760mg/L HAP solution for residual oil after water flooding is 6%~8% higher than that of glycerol solution of equal concentration.
     在人造岩心(渗透率Kg在0.9~1.3μm2)上的驱油实验结果显示,在水驱采收率的基础上,污水配制的疏水缔合聚合物溶液可以提高采收率16%~18%,比甘油驱采收率高6%~8%。
短句来源
     The increase of the preflush polymer slug (0.1-0.3PV) is beneficial to displacing efficiency. The post-pad slug can be chosen to be 0.2PV because it has no remarkable effect on the displacing efficiency.
     在碱、表面活性剂用量不变的情况下,注入的聚合物前置段塞(0.1~0.3 PV)增大对改善驱油效果有利,前置段塞聚合物浓度应不低于1.2g/L;
短句来源
     Conclusion It is the same as other wettability low-permeability reservoir's water displacing efficiency and the water displacing oil efficiency in water free oil production period is lower than low permeability water-wet reservoirs obviously.
     结论弱亲油储层与亲水、弱亲水、中性特低渗储层的微观水驱油效率相当或无显著的差别,但无水期微观水驱油效率明显低于亲水性储层;
短句来源
     The pore structure is the most important factor that effects water displacing efficiency.
     孔隙结构是决定特低渗储层微观水驱油效率的主要因素。
短句来源
     the interfacial tension between the ASP chemical system and the oil, including balance and instantaneous dynamic interfacial tension, make remarkable influence on displacing efficiency in ASP flooding process;
     复合体系与原油间的界面张力值,包括平衡和瞬时动态界面张力值对于复合驱的驱油效果有显著的影响;
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  displacing efficiency
Poly-L-arg and poty-L-lys of similar molecular weight were also similar in displacing efficiency.
      


Based on the geological feature and reservoir characteristics of K_2 forma- tion,Zaoyuan oilfield,three kind of core which have typical porous structure were chosen to make a set of visible micro-model.Seven kind of model were made by means of etching images into glass surface which then are fused toge- ther.Three of them were mimic porous models,and others were composition porous models which reflect the lithological change of K_2 reservoir.A lot of micro displacement are carried out to study the mechanism...

Based on the geological feature and reservoir characteristics of K_2 forma- tion,Zaoyuan oilfield,three kind of core which have typical porous structure were chosen to make a set of visible micro-model.Seven kind of model were made by means of etching images into glass surface which then are fused toge- ther.Three of them were mimic porous models,and others were composition porous models which reflect the lithological change of K_2 reservoir.A lot of micro displacement are carried out to study the mechanism of residual oil form- ed after water flooding and affecting factors.The results are:(1)There are two displacing types:piston and nonpiston displacement,and the former has a higher displacing efficiency than later.Defferent displacing type intro- duces difference in the distribution of residual oil.(2)Mobility ratio is on im- portant factor in affecting the mechanism of residual oil formed.The larger the mobility ratio,the higher the residual oil satuation due to non piston displacement.(3)In heterogeneous structure,the residual oil is mainly trapp- ed in tight porous group where water is difficult to flood.(4)The residual oil satuation is apparently decreased when pressure gradient of flood is increas- ed.Finally,several suggestions to adjust present flooding well network,to increase the pressure gradient of flooding and improve mobility ratio are pre- sented.

本文应用微观透明模型实验新技术,模拟枣园油田孔二段油藏水驱开发条件,重点研究了该油藏的水驱残余油形成机理,从微观的角度,提出了微观水驱油方式、孔隙结构、水驱油压力及流度比是影响孔二段油藏水驱残余油形成机理的重要因素,并提出了相应的改善措施。

Abstract The main factors of affecting the cementation quality of inclined straight well, whichare hole deviation angle,sedimentation of barite,free water,etc.Besides,the paper putforward the methods of improving the cementation quality of inclined straight wells,whichinclude adjusting the yield of drilling fluid,using low viscosity ahead fluid,strengtheningthe activating casing and using the well wall cleaner.The combined action of the activatingcasing and the well wall cleaner will apparently increase the...

Abstract The main factors of affecting the cementation quality of inclined straight well, whichare hole deviation angle,sedimentation of barite,free water,etc.Besides,the paper putforward the methods of improving the cementation quality of inclined straight wells,whichinclude adjusting the yield of drilling fluid,using low viscosity ahead fluid,strengtheningthe activating casing and using the well wall cleaner.The combined action of the activatingcasing and the well wall cleaner will apparently increase the displaced efficiency of thedrilling fluid.SUBJECT TERMS:inclined straight well,cementing,displaced efficiency,drilling fluid

分析了影晌斜直井身固井质量的主要因素是钻井液中重晶石粉的沉淀、钻井液流变性、井斜角和水泥浆的游离水等因素;提出了改善斜直井身固井质量的方法是调整钻井液屈服值,使其超过形成固相槽的极值;使用低粘度前置液会有助于提高顶替效率;使用扶正器以提高扶正器两端的顶替效率;活动套管有助于改善钻井液顶替效率,但旋转套管和往复活动套管2者的作用没有明显的区别,对于渗透性地层来讲,使用井壁清洁器和活动套管的联合作用将明显地增加钻井液的顶替效率。

In general,the compression resistance of double-layer casing can be summed,the annulus space must be adequately cemented. So while cemented, the displacement efficiency must be increased. The casing offcenter is a key factor to effect the displacing efficiency. So,a new constructuredouble-layer casing is supplied that is fixed with a stiff spiral centralizer in the internal casing. First,thecentralizer can keep the casing centralization. Second,the cement slurry flows with spiral,the displacingcan be increased....

In general,the compression resistance of double-layer casing can be summed,the annulus space must be adequately cemented. So while cemented, the displacement efficiency must be increased. The casing offcenter is a key factor to effect the displacing efficiency. So,a new constructuredouble-layer casing is supplied that is fixed with a stiff spiral centralizer in the internal casing. First,thecentralizer can keep the casing centralization. Second,the cement slurry flows with spiral,the displacingcan be increased. Third,the collapsing strength of the combined casing can be increased by the liner.

一般情况下,双层组合套管的抗外挤压力大于内、外层套管的抗外挤压力之和,其充要条件是环形空间完全被水泥封固,因此固井时必须提高顶替效率。套管偏心是影响顶替效率的关键因素。为此,提出在内层套管上用衬管来固定刚性旋流扶正器的双层组合套管的新结构,一是扶正器可保证套管同心;二是水泥浆成旋流状,可进一步提高顶替效率;三是衬管也有助于提高组合套管的抗挤毁能力。

 
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