1.DETERMINATION OF THE LOCATION AND PROPERTIES OF SUBSURFACE FRACTURES USING SURFACE RESISTIVITY AND TELLURIC CURRENT METHODS─AN EXAMPLE FROM THE UNITED STATES
DETERMINATION OF THE LOCATION AND PROPERTIES OF SUBSURFACE FRACTURES USING SURFACE RESISTIVITY AND TELLURIC CURRENT METHODS─ AN EXAMPLE FROM THE UNITED STATES
2.The variations of the degree of ground resistivity anisotropy during the Tangshan earthquake
The variations of the degree of ground resistivity anisotropy during the Tangshan earthquake
3.The earthquake distribution and the resistivity structure in the Chinese mainland (Ⅰ)
The earthquake distribution and the resistivity structure in the Chinese mainland（Ⅰ）
4.Statistical characteristics of data on such regional rock electrical properties as resistivity and chargeability, which include 3010 pieces of resistivity data and chargeability data from 3010 standard cylinder specimens and 2069 pieces of resistivity data from well logging, have been described in this paper.
摘要整理河北省岩石电性数据5079个，其中地表圆柱状规格化样品3010件均进行了电阻率、极化率测量，地下测井电阻率数据2069个。
5.The relationships among the rock permeability,water saturation and resistivity of Weicheng oilfield in Dongpu depression are studied by rock resistivity parameter testing and rock resistivity testing by water flooding.A comprehensive evaluation for water flooded reservoirs of 16 adjusting wells is carried out by using the testing results,by which the accuracy of interpretation is enhanced greatly.
注水开发油田进行调剖堵水作业时,需要确定合理的堵剂注入量.从非活塞式水驱油理论出发,推导出了封堵高渗层后水驱油在低渗层的波及距离公式;并结合室内试验结果,确定了最佳封堵半径.指导现场施工后,取得了较好的效果.
6.In accordanc e with features of low resistivity pay zones, the paper probed into forming caus es of low resistivity pay zones and their showing features in mud logging, analy zed and studied the method that low resistivity pay zones were comprehensively i nterpreted and evaluated by making use of geo-logging, gas logging, geo-chemical parameters and well logging data from Dongpu sag in a try way.
该文针对低阻油气层的特征,探讨了低阻油气层的形成原因及其在录井中的显示特征,尝试性地分析研究了东濮凹陷应用地质录井、气测、地化参数、测井资料综合解释评价低阻油气层的方法。
7.Testing on effects of Rdc. and Vdc representing clay resistivity and fraction or dry clay resistivity and fraction on water saturation calculated by the model it proves that it is very reasonable for Rdc to be clay resistivity and Vdc to be dry clay fraction, so the model derived from the paper can be used to evaluate shaly sands.
通过考察Rdc、Vdc代表粘土或干粘土电阻率及含量对该模型计算含水饱和度的影响，说明Rdc代表粘土电阻率，而Vdc代表干粘土含量是合适的，因此，使用文中给出的电阻率模型能更好地解决泥质砂岩问题。
8.The influence of the growth of grains and of the properties of PTC ceramic materials was investigated at different cooling rate, and PTC ceramics with low room temperature resistivity (ρ)<9Ω·cm, resistivity step ratio (ρmax/ρmin)>05, temperature coeffient of resistivity (Vb) >130V·mm-1 and Curie temperature (TC) at 105℃ have been obtained.
考察了不同降温速率对晶粒的生长状况及PTC陶瓷材料性能的影响,获得了室温电阻率(ρ)<9Ω·cm,电阻率突变(ρmax/ρmin)>05,温度系数(α30)>3%·℃-1,耐电压(Vb)>130V·mm-1,居里温度(Tc)为105℃的低阻PTC陶瓷材料。
9.The place of the anomalous extremum of apparent resistivity curve is related to the position, thickness, resistivity and occurrence of geologic bodies ahead of the tunnel.
摘要在坑道电阻率超前探测工作中，视电阻率异常极值位置与异常体位置、厚度、电性以及产状相关。
10.Polyethylene/carbon black (HDPE/CB) PTC ( positive temperature coefficient ) materials have a wide applications due to its lower room temperature resistivity, higher PTC intensity, adjustability of resistivity and PTC intensity, the feasibility of restraining NTC ( negative temperature coefficient ) effect by some modification, easiness for processing and lower production cost.
聚乙烯/炭黑(HDPE/CB)PTC (positive temperature coefficient)材料因其室温电阻率较小,PTC强度较大,并且容易调节,经过改性可以抑制高温NTC(negative temperature coefficient)效应,加工条件便利,材料成本较低等优点得到较为广泛的应用。
