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1.polymer-to-Al3+ ratio 5:1-30 :1. The CDGs prepared have viscosity, FR, and FRR much more higher than that of the corresponding polymer acutions.
与相同浓度聚合物溶液相比,CD胶的粘度较高,阻力系数和残余阻力系数较大。收藏指正
2.The result indicates that displacement characteristics of unsheared polymer solution is better than the same viscosity polymer solution after sheared, the injection pressure of the unsheared polymer solution is higher than the same viscosity polymer solution after being sheared in the same permeability core , the lower the permeability, the bigger the molecule weight and the bigger the difference, as to the every layer of the secondary oil layer, it is feasible to displace oil with the polymer solution after sheared, and the EOR of the polymer flooding can increase more than 9.84%.
结果表明:未经剪切的聚合物溶液的驱油效果好于经剪切之后的相同相对分子质量的聚合物溶液的驱油效果;对于相同渗透率的岩心,未经剪切的聚合物溶液比经过剪切相同相对分子质量聚合物溶液的注入压力高,而且渗透率越低,相对分子质量越大,差异越大;对于二类油层的各渗透率小层,进行经剪切后聚合物溶液驱油是可行的,聚驱采出程度提高幅度均超过9.84%。收藏指正
3.Reasons for higher degrading rate of Model 3DJ polymer injection pump and modification of pump valve
3DJ型注聚泵降解率偏高原因分析及泵阀改进收藏指正
4.for the waterflooding blocks with the water cut of above 98% , higher recovery efficiency is obtained by injecting polymer slug firstly and then injecting the activated water slug of SLB surfactant than by directly injecting SLB surfactant - polymer compound slug.
对已进行水驱且注入水接近突破的低渗透油层,在采出液含水率达98%以后,先注低分子量聚合物水溶液段塞,后注SLB超低界面张力活性水段塞,将比注入二者的复配体系段塞获得更高的采收率.收藏指正
5.the polymer extracted by DCE for 2h exhibited higher crystallinity .
用DCE处理半结晶聚合物能得到结晶度更高的聚合物样品。收藏指正
6.Inulin A polysaccharide food reserve of some higher plants, particularly the Asteraceae, e.g. Dahlia root tubers. It is a polymer of fructose.
菊粉:是一种可以作为高等植物储藏营养物质的多聚糖,在菊科大丽花属的块根中尤为明显。它是一种果糖聚合体收藏指正
7.Polydithiocarbamate backbone polymer beared high decomposetemperature, and cyclic amine was higher than linear ones;
1、主链型氨基二硫代甲酸基团聚合物有较高的分解温度,环状胺比直链胺具有更高分解温度;收藏指正
8.On the same condition,the molecular weight of polymer by BPO was higher than by AIBN.
在同等条件下 ,引发剂过氧化苯甲酰 (BPO)聚合所得的分子量较偶氮二异丁腈 (AIBN)高。收藏指正
9.s. Compared with polyacrylamide and AMPS polymer, its viscosity can be up to hundreds times of them and higher.
在同浓度下 (>10 0 0mg/L) ,与聚丙烯酰胺、AMPS聚合物常温增黏特性相比 ,缔合聚合物黏度高于前二者 2~ 30倍。收藏指正
10.It is revealed by the property determination that the glass transition temperature (Tg) is increased and enthalpy (AHf) is decreased as the nanosized Al2O3 is added to the PEEK. The higher strengths in tension, compression, bending and impact are also achieved in the nano Al2O3 contained polymer in comparison with the unfilled PEEK.
通过对所研制材料的物理力学性能进行研究,结果表明:纳米Al_2O_3粉体填充使PEEK的玻璃化温度略有升高,熔融热减少,拉伸、压缩、弯曲和冲击强度明显提高;收藏指正
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