channeling相关论文
Multibeams dynamical theory of electron diffraction has been used to calculate the fast electron thickness-integrated pr......
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,Channeling of fast ions through the bent carbon nanotubes: The extended two-fluid hydrodynamic mode
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开发了一种适用于高温低渗透油藏的CO_2气驱封窜剂,通过对封窜剂配方中缓聚剂ES、引发剂、改性剂加量的筛选,得到封窜剂的最佳配方......
在满足沟道效应条件下, 高能离子在穿过晶体时, 离子穿过的是周期性的原子序列或者有序平面阵列. 在入射离子的坐标系中, 离子感受到一......
A composite gel was prepared for plugging CO2 channeling,which is a serious problem for enhanced oil recovery with CO2.A......
LATTICE LOCATION DETERMINATION OF TRACE AMOUNT CARBON IN GALLIUM ARSENIDE BY THEORETICAL CALCULATION
Combining the charged particle activation analysis (CPAA) and the (?)hanneling technique, partial concentrations of carb......
A combined PIXE-RBS channeling measurement system to examine Ⅲ-Ⅴ compound semiconductors has been established. Prelimi......
The channeling phenomenon of carbon ions in single-wall carbon nanotubes (SWCNTs) is investigated by using the molecular......
An ion beam analysis system was established on a 1.7 MV tandem accelerator, enabling Rutherford backscattering(RBS), ela......
Progres in ion beam analysis at Fudan University in the recent years is briefly reviewed. Presented as examples of the r......
应用套管外封隔器是大庆油田对油水井质量套管先期防护的有效技术措施,本文简要论述了套管先期防护的意义及应用套管外封隔器进行套......
针对大港地区港西油田浅层水窜通道严重和注入水通过裂缝等窜至地面问题.开展浅层水窜通道和断层封堵技术研究。结合油藏条件和流......
CXG型堵漏剂是一种新型的堵漏封窜剂,该堵剂在常用的油井水泥基础上,添加了具有活性组分的支撑剂、悬浮分散剂和固化剂。室内及现场......
我们在对Ⅱ-Ⅵ族ZnSe/ZnS和Ⅲ-Ⅴ族GaSb/AlSb应变超晶格进行离子束沟道测试中发现,反常退沟道现象与趋晶格的层厚有密切的关系。通常所认为的[110]反常退沟道......
针对柴达木盆地北缘地区油气水层分布段长、压力异常的固井难点,从加重剂、外加剂、防窜性、抗盐性等方面对高密度水泥浆进行了系......
准噶尔盆地陆梁油田部分注水井,受固井质量的影响,在注水开发过程中,易发生管外窜,导致产量递减大,含水上升快。传统方法,是利用水泥进行......
In order to present a new method for plugging channeling in oil field,the injection modes and validity period of foam sy......
通过数值模拟和室内岩心驱替实验,结合现场实际数据,认为在所研究的地质特征范围内,某些注采井间的确产生了微小的裂缝。在聚合物注入......
油井高含水原因的检测可以为地质开发治理措施的确定及实施提供可靠依据,提高油田的开发经济效益。对造成油井高含水的原因进行了分......
为研究水驱后气驱的窜流特性,在水驱油模型的基础上推导了气驱窜流突破公式,研究了均质和非均质,混相和非混相,以及垂直方向的气窜特性......
针对江苏油田部分油井水力压裂后层间水窜的问题,研究应用了桥塞挤水泥封堵工艺,使5口濒临报废的死井复活,措施有效率100%,累计增......
用亚硫酸盐作为前置预处理液,加快丙烯酰胺-甲叉基双丙烯酰胺地层内聚合堵水,这是一种新技术。加入亚硫酸盐,可使丙烯酰胺-甲叉基双丙烯......
建立了考虑表皮效应的层状越流油藏定井底流压生产的数学模型,求得拉氏空间下无因次流量和累积流量的解析解;利用Stehfest数值反演......
碳纳米管绳是近年来产生的超晶格结构的大单晶体。高能粒子在碳纳米管绳里的沟道效应,显示大的沟道直径和微弱的退沟道因子。在粒子......
针对油井出现的管外窜槽导致的水层出水问题进行了室内模拟研究,利用80cm长岩心及其并联模型进行试验以避免短岩心试验产生的端面效......
本文采用Li离子作为背散射-沟道实验的分析束来研究In_(0.75)Ga_(?)As/GaAs应变异质结的结构.沟道效应和角扫描的实验表明,由于晶......
本文通过对水平井多级压裂产生窜流原因进行分析,分析一二界面胶结质量和施工工艺参数对段间窜流的影响,优选高效驱替前置液及晶体微......
针对疏松砂岩油藏注聚区块注聚窜聚严重、封堵技术有效率低、有效期短的问题,研究了一种无机矿聚物溶胶深部封窜剂,用于封堵注聚井......
超薄互层油藏储层厚度极小,且物性好与物性差的储层交互分布,模拟难度大。为此采用拟双重介质模型模拟该类油藏:好储层对应裂缝系统......
本文提出了在彩色联合变换中使用光栅对彩色物体进行分通道处理的方法,讨论了实现此方法对光源,滤色片的限制,并基于此讨论结果提出了......
Stress Intensity Factors in Two Bonded Elastic Layers Containing Crack Perpendicular on the Interfac
Thin bonded films have many applications (i.e. in information storage and processing systems, and etc.). In many cases, ......
本文介绍了自主研制的扇区水泥胶结测井仪器的测量原理,仪器结构和电路组成及工作流程通过对现场测井资料的分析表明:扇区水泥胶结测......
Multi-enzyme complexes are the results of natural evolution to facilitate cascade biocatalysis.Through enzyme colocaliza......
An analysis technique combining RBS with PIXE technology by x-particles incident beam was constructedand applied to anal......
管外窜槽已成为制约中原油田注水开发的障碍,并造成了严重的经济损失.文中分析了管外窜槽的形成机理,重点介绍了注硼中子寿命测井......
A new method is proposed here aiming at designing a shielding wall with the efficiency significantly higher than that of......