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。
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.
中子测井是提供地层孔隙度和岩性信息的重要手段。
Neutron log is an important means for providing porosity and lithology information.
含氢指数是中子孔隙度测井响应的主要参数。
It is a key factor in the response of a neutron porosity log.
土壤：调查和试验。测井。中子探测方法。
Soil: investigation and testing. Well logging. Neutron probe method.
讨论了有限元方法在中子测井数值模拟中的应用。
This paper deals mainly with applications of the finite-element method in numerical simulation of neutron well-logging.
根据中子氧活化技术的特点，分析了中子氧活化测井技术的优势以及油田监测中通过该技术解决的问题。
On the basis of features of neutron oxygen activation technique, analyzed are its advantages in well logging, and discussed is how problems to be solved by it in oilfield monitoring.
原子吸收中子的过程。原子受到激发，释放俘获伽马射线。测井中用到这种效应。
The absorption of a neutron into an atom. The atom becomes energized and releases gamma rays of capture. The effect is used in well logging.
通过C8051F040单片机对中子管的灯丝电压、靶压以及阳极脉冲进行控制，使其工作在一个理想状态，是提高仪器测井效率、延长中子管使用寿命的重要手段。
By using C8051F040 SCM to control the neutron tube's filament voltage, the target voltage and the pulse of the anode, the downhole tool can work at an ideal state.
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。
Three different nuclear logging combinations can be formed according to thermal neutron logging, epithermal neutron logging and density logging.
NLT A中子寿命测井仪是用于储集层评价、油层动态监测等生产测井领域的新型测井仪器。
NLT-A Neutron Lifetime logging tool is a new logging tool which is used to evaluate the reservoir and monitor the reservoir behavior.
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。
This method is applicable to various log curves, such as laterolog, induction electrolog, neutron log, density log and self potential log curves.
研制成功玻璃闪烁体补偿中子测井探头。
A new type of compensated neutron logging probe with grass scintillators has been designed.
同时介绍了阵列中子测井样机在模型井中的各种测量结果。
Various measuring results of model machine of array neutron logging in the model are introduced simultaneously.
源距是中子测井仪器的主要参数，它在很大程度上决定测井仪的孔隙度精度、灵敏度、分辨率以及环境因素影响状况。
Source spacing is one of the key parameters of neutron logging tool, by which permeability precision, sensitivity, resolution of the logging tool are determined to a large extent.
脉冲中子氧活化测井是一种测量水流速度的测井方法。
Impulse oxygen activation logging is a recent version of oxygen activation method for water flow measurement.
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。
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.
由于孔隙空间存在着气体，同一地层的中子孔隙度测井和密度孔隙度读数不同。
Different porosity reading on the neutron porosity log for the same formation due to gas in the pore space.
详细地介绍了中子与密度测井在东濮凹陷勘探中的应用情况。
This article will introduce the application of neutron-density log in Dongpu depression exploration.
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。
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.
碳氧比测井、元素俘获能谱测井、脉冲中子能谱测井、铝活化测井以及氧活化测井都属于活化测井。
The carbon-oxygen log, elemental capture spectroscopy log, pulsed neutron spectroscopy log, aluminum activation log and oxygen activation log are all examples of activation logs.
利用图象网络统计、拟合、加权分析技术，提出中子测井资料环境影响校正分析方法和处理模式，建立起精细的统计、拟合自动分析校正系统。
An exact statistical fit and auto-correction system for neutron log data has been set up with the use of image network statistics, network weighted analysis (algorithm) and fit.
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技术用于管外窜槽监测的原理、工艺及解释方法。
This paper deals with the mechanism of bypass channel and mainly discusses the theory, technics and interpretation method of using neutron Lifetime Log(NLL)to evaluate channeling.
记录元素浓度的测井方法，利用中子轰击原子核，使其激活后释放出伽马射线，根据伽马射线的特征能量级可获得元素浓度。
A log of elemental concentrations derived from the characteristic energy levels of gamma rays emitted by a nucleus that has been activated by neutron bombardment.
核测井使用的密封中子源和伽马源具有较强的放射性，对操作人员有一定的辐射损伤。
Sealed neutron source and gamma source used in nuclear logging have strong radioactivity which is harmful to operators.
本文对补偿中子贴壁测井和自然伽马能谱测井的实际问题进行了数值模拟研究。
This paper systematically accomplishes the numerical simulation of dual-spaced wall contact Compensated Neutron logging and gamma ray energy spectrum logging.
文章介绍了脉冲中子氧活化能谱测井的测量原理、测井工艺及该技术在江苏油田应用情况。
This paper briefly describes the measuring theory and operation process of pulsed neutron oxygen activation spectrum logging, and introduces the application of this technology to Jiangsu Oilfield.
这些结论丰富了中子测井仪器自身条件变化对计数影响的相关理论，为仪器优化设计提供了理论依据和有效工具。
These conclusions have enriched the theory a-bout effects caused CNL tool's changes on the detectors' count rates, thereby providing theory warrant and effective means for optimum design of CNL tools.
文章介绍MZY -DD1脉冲中子氧活化测井仪的工作原理、仪器结构及电路原理。
The operational principle, structure and field application results of a new designed impulse oxygen activation tool, MZY-DD1, is presented.
氯测井已经被中子寿命测井和热衰减时间测井所代替。
This log has been replaced by the neutron -lifetime and neutron-decay-time logs.
氯测井已经被中子寿命测井和热衰减时间测井所代替。
This log has been replaced by the neutron -lifetime and neutron-decay-time logs.
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