When superposing neutron porosity log with density porosity log, density porosity is far higher than neutron porosity.
当中子孔隙度与密度孔隙度曲线重叠时，会有密度孔隙度远高于中子孔隙度的特征；
It is theoretically considered that reservoir gas-bearing makes interval transit time porosity and density porosity increase and neutron porosity decrease.
理论上认为，储层含气使声波时差孔隙度和密度孔隙度增大，使中子孔隙度减少。
Limestone will have the same porosity measurements, whereas a wet sandstone will cause the neutron porosity to read low and the density porosity high.
石灰岩具有相同孔隙度测量值，而湿砂岩将导致中子孔隙度的读数偏低，密度孔隙度读数偏高。
The paper describes the model for calculating the neutron flux density distribution in two dimensional hexagonal geometry assembly of light water reactor (LWR) by transmission probability method.
研究利用穿透概率法求解二维六角形轻水堆燃料组件内中子通量密度分布。
Shale and dolomite will cause the neutron porosity high and the density porosity low.
泥岩和白云岩导致中子孔隙度的读数偏高，密度孔隙度的读数偏低。
A method for evaluation of low porosity dolomite reservoir using lithology density and compensated neutron logs is presented in this paper.
本文介绍一种用岩性密度和补偿中子双孔隙度法评价低孔隙度白云岩气藏的方法。
According to the nonlinear dynamic model of a nuclear reactor, a new constant neutron flux density control method based on nonlinear state feedback is presented.
针对核反应堆点堆动态非线性模型，提出了一种非线性状态反馈的中子通量密度恒值控制的新方法。
This method is applicable to various log curves, such as laterolog, induction electrolog, neutron log, density log and self potential log curves.
此适用于多种测井曲线，如侧向测井、感应测井、中子测井、密度测井和自然电位测井等曲线。
For neutron matter with M-S interaction, the critical density of the ferromagnetic transition, the equation of state and the neutron star models are calculated.
还计算了在M - S势作用下的中子物质出现铁磁相变的临界密度、含有铁磁相变的物态方程及中子星模型。
But it will fail to recognize the gas bearing bed buried deeper by the two methods as its porosity log feature is not obvious, especially when density porosity is lower than neutron porosity.
但是，对埋藏较深的气层而言，由于其孔隙度曲线特征并不明显，故用常规方法识别十分困难，特别是当密度孔隙低于中子孔隙度时，上述两方法识别气层均失败。
We show that the rearrangement contribution of TBF to neutron and proton single-particle potentials is repulsive and increases rapidly with increasing density and momentum.
结果表明：三体核力重排效应对质子和中子单核子势均具有排斥性，而且其贡献随动量和密度增加而迅速增大。
This article mainly deals with the resolution enhancement technique and its application in radioactive logs, such as natural gamma log, compensated neutron log and compensated density log.
着重探讨了放射性测井曲线中自然伽马测井曲线、补偿中子测井曲线和补偿密度测井曲线的高分辨率处理方法及其应用效果。
The effect of each composition of two-body central potential on the critical density for ferromagnetic transition is calculated for neutron matter.
就中子物质计算并讨论了二体中心势中各成分对出现铁磁相变临界密度的影响。
Neutron lifetime is the time in which the thermal neutron density falls to half.
中子寿命是指热中子密度降至一半所用的时间。
Three different nuclear logging combinations can be formed according to thermal neutron logging, epithermal neutron logging and density logging.
根据热中子测井、超热中子测井和密度测井，可以形成三种不同的核测井组合。
Theoretically, when gas exists in reservoir, longitudinal wave offset time will increase and transverse wave offset time will not change and density will decrease and neutron will decrease, too.
理论认为当储层中存在着天然气时，会导致纵波时差增大，横波时差不变，密度测井值减小，中子孔隙度减小。
The space curvature of neutron density of this solution is changed according to the changes of reactor power, so it is more precise than the analytic solution of point reactor model.
此解的中子密度空间分布曲率是随堆功率变化的，因此它比点堆模型方程的解析解精确。
In this paper, the stratigraohic volume density and hydrogen index gained from the information of density-neutron logging are respectively compared with both the low-limit values of gas formation.
本文从密度和中子测井信息中提取的地层体积密度及含氢指数，分别同气层体积密度及含氢指数的下限值作比较，前者小于后者，直观指示为气层。
The low density drilling fluid has borehole excavation effect on compensated neutron porosity logging, and by this way apparent porosity is lower than the true value.
低密度井眼流体会对补偿中子孔隙度测井产生井眼挖掘效应，使视孔隙度值低于真孔隙度，且井眼流体密度越小，井眼尺寸越大，地层孔隙度越大，井眼挖掘效应越明显。
The log is made from resistivity, density, neutron, and sonic log data and shows porosity, secondary porosity, grain density, fluid analysis, water saturation, and formation analysis.
其资料来源于电阻率测井、密度测井、中子测井和声波测井。计算结果包括孔隙度、次生孔隙度、颗粒密度、流体分析、含水饱和度以及地层分析。
A xenon poison method is proposed for measurement of thermal neutron flux density.
文章提出用氙中毒法测量微堆堆芯热中子绝对通量密度。
When the gas saturation in formation is high, the characters of low neutron, low density, high interval transit time and high resistance are obvious;
当地层含气饱和度较高时，有低中子、低密度、高时差及高电阻率特征明显；
Properties of nuclear matter and neutron star are described in relativistic mean field theory with density-dependent effective interactions.
基于密度相关有效相互作用的相对论平均场理论，研究了核物质和中子星的性质。
The neutron porosity log reads low, whereas the density log reads high and relatively accurately.
中子孔隙度的读数低；而密度孔隙度的读数高，且相对而言较为准确。
The neutron porosity log reads low, whereas the density log reads high and relatively accurately.
中子孔隙度的读数低；而密度孔隙度的读数高，且相对而言较为准确。
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