电阻率

The research shows that the idetification of low resistively oil reservoirs should start with the sedimentolgoy, tra...

研究表明，低电阻率油层的识别应首先从沉积、圈闭以及层位的角度出发，确定低阻油层可能出现的区域，然后综合判别各种测井响应特征，最终正确识别出低电阻率油层。

Starting from the understanding of low resistively oil reservoirs and combining with the knowledge of geology and log response characteristics, the researchers have found the identification method of low resistively oil reservoirs in oil-gas field.

从对低电阻率油层成因的认识出发，结合地质认识成果和测井响应特征探索出识别低电阻率油层的有效方法。

The dispersion relates to water saturation in shaly sand formations.

在特定的频段，泥质砂岩的复电阻率存在明显的频散现象，这种频散与地层含油饱和度的关系密切，是目前复电阻率测井的基础。

In the shaly formation, it is nonlinear relationship between the logarithm of the resistivity index and the logarithm of water saturation. The saturation exponent changes with resistivity index, with different changes under different pore structure and shale conditions.

在泥质地层中，电阻率指数的对数与含水饱和度的对数之间是非线性关系，即饱和度指数随电阻率指数的变化而变化，而且不同孔隙结构、泥质条件下其变化不同。

First, the analytical formula of the spheriform water-bearing structures advanced detection in the whole space is deduced. Based on the analysis of large forward modeling results with finite element numerical simulation method, the apparent resistivity data in 3-D space with tunnel is translated into the data of advanced detection in the whole space with comparison method.

首先，推导出了无限全空间中球体含水构造直流电法超前探测的解析解公式，并在利用有限元数值方法进行正演分析的基础上，借助&比较法&将含隧道腔体的三维空间中超前探测视电阻率数据转换为无限全空间中的数据，并探讨了由MN电极附近电阻率不均匀所造成的干扰以及识别和去除这种干扰的方法。

S the cold worked specimen aged at 400 and 480℃ two peaks were ob- served on the resistivity plot and X-ray relative intensities vs time curve,while two plateaus were found on the thermoelectromotive force curve.

u-Pd-Cr 合金在不同温度退火后室温电阻率增加，在450和850℃达到极大，冷加工时则又减小，硬态试样经400和480℃时效后，电阻率和 X 射线相对强度随时间变化曲线出现两个峰，而在自配热电势曲线上则是两个阶梯。

However, the value of magnetoresistance increased apparently after annealing and was 1.74 times the unannealed sample. XRD structural analysis shows that peak intensity of the annealed sample is greater than that of the unannealed one which demonstrated an increase of crystallinity.

实验结果表明：退火后样品的薄膜电阻率显著减小，是未退火样品薄膜电阻率的3.17分之一；而退火后磁电阻值则明显增加，是未退火时的1.74倍；XRD结构分析显示，退火后薄膜样品的峰值强度大于未退火样品的强度，说明样品结晶度增强。

We have measured the in-plane and out-of-plane resistivity of epitaxial Bi-2201 films grown on untilted and tilted(001)SrTiO3substrates.

测量了Bi2Sr2-xLaxCuO6薄膜样品的电阻率，得到了正常态平面电阻率ρab与温度的正比关系。

The design of voltage and current measurement circuits, reference signal circuit, sonde of the tool and model well construction are also included.

在理论上探讨套管井电阻率的测量方法及测量原理，并详细地推导测量电阻率的计算公式。

Re- versing true formation resistivity through array induction logging technology can solve the pro.

采用阵列感应测井技术反演地层真电阻率有效解决了咸水泥浆侵入造成电阻率降低的问题，在辽河滩海地区收到了明显的地质应用效果。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。