【摘 要】
：
水动力学半径是衡量聚合物注入能力的重要参数.通过统计同系列的普通聚合物(部分水解聚丙烯酰胺)和疏水缔合聚合物的产品质量检测结果,并测量相应聚合物的水动力学半径,分析聚合物Huggins常数与性能参数关系,得到一种定性评估同系列聚合物水动力学半径大小的方法.Huggins常数变化与聚合物分子结构、官能团有关,一定条件下,部分水解聚丙烯酰胺的Huggins常数随水解度增加呈指数增加趋势,疏水缔合聚合物的Huggins常数随黏度增加呈现线性增加趋势,少数分子结构异化的聚合物偏离上述变化规律.因此根据产品质量检测
【机 构】
：
大庆油田有限责任公司勘探开发研究院,黑龙江大庆163712;中国石油玉门油田分公司油田作业公司,甘肃酒泉735200
论文部分内容阅读
水动力学半径是衡量聚合物注入能力的重要参数.通过统计同系列的普通聚合物(部分水解聚丙烯酰胺)和疏水缔合聚合物的产品质量检测结果,并测量相应聚合物的水动力学半径,分析聚合物Huggins常数与性能参数关系,得到一种定性评估同系列聚合物水动力学半径大小的方法.Huggins常数变化与聚合物分子结构、官能团有关,一定条件下,部分水解聚丙烯酰胺的Huggins常数随水解度增加呈指数增加趋势,疏水缔合聚合物的Huggins常数随黏度增加呈现线性增加趋势,少数分子结构异化的聚合物偏离上述变化规律.因此根据产品质量检测结果,统计2种聚合物的Huggins常数与性能参数关系,可以较简易准确地对比评价同系列聚合物的水动力学半径相对大小.
其他文献
In this paper,the Kalman filter(KF)and the unbiased finite impulse response(UFIR)filter are fused in the discrete-time state-space to improve robustness against uncertainties.To avoid the problem where fuision filters may give up some advantages of UFIR f
The number of available control sources is a limiting factor to many network control tasks.A lack of input sources can result in compromised controllability and/or sub-optimal network performance,as noted in engineering applications such as the smart grid
This paper investigates the atomic spin polarization controllability of spin-exchange relaxation-free co-magnetometers(SERFCMs).This is the first work in the field of controllability analysis for the atomic spin ensembles systems,whose dynamic behaviors o
Data with missing values,or incomplete information,brings some challenges to the development of classification,as the incompleteness may significantly affect the performance of classifiers.In this paper,we handle missing values in both training and test s
With the increasing intelligence and integration,a great number of two-valued variables(generally stored in the form of 0 or 1)often exist in large-scale industrial processes.However,these variables cannot be effectively handled by traditional monitoring
Dear editor,rnDue to visual impairment and lack of social attention,the reading problem of the blind has not been well resolved.Many existing Braille reading devices still have many problems and are not accepted by the public.This paper developed a portab
Dear editor,rnAlong with the progress of science and technology and the development of social civilization,control system brings an increasingly significant function in daily life.The application field of control system is very wide,for instance,in mobile
随着国内油田对环境保护、储层保护的日益重视,绿色无毒的自降解暂堵剂成为近年来的一个研究重点.通过将两种自降解材料复配研发了一种配方为60％PA+40％YG-1的自降解水溶性暂堵剂,研究了该暂堵剂的溶解性、配伍性、封堵性、抗压性、分散悬浮性及对压裂液性能的影响,分析了暂堵剂水解液的成分,并在长庆低渗透储层进行了现场应用.该暂堵剂在地层水、配液水及压裂液中8 h内的溶解率均大于95％且配伍性良好;在50～80℃下对裂缝岩心的封堵率均大于80％;该暂堵剂在40 MPa压力内的破碎率小于10％;该暂堵剂在胍胶基液
Dear editor,rnRegional precipitation,as a very important component system of hydrology,plays a key role in the whole water cycle[1].The dramatic changes of regional precipitation in a short period can easily have a serious impact on the local ecological e
纳米颗粒因其独特的纳米效应在提高原油采收率具有广泛的应用前景,但超低渗储层孔喉细小,纳米颗粒的吸附滞留对其储层物性影响较大.基于SiO2纳米流体在超低渗岩心中的驱替实验,结合紫外可见分光光度实验测试纳米颗粒在岩心中吸附量,并采用扫描电镜观察了驱替结束后岩心切片.研究结果表明,随着纳米流体质量分数(0.01％～0.50％)的增加,岩心注入压力升高,纳米颗粒滞留率增大(7.60％～87.50％)、渗透率损失率最高可达96.46％.后续NaCl溶液驱替仅可带走少许吸附不稳定的游离态纳米颗粒,但未明显缓解吸附滞留