测井曲线

The study indicates that the optimum windows width decides the layering precision, interface partition with sym6 wavelet is better than with db4, canonical wavelet decomposition of conventional logging curves can well meet the demand of coenocorrelation.

研究表明，选择恰当窗宽小波决定测井曲线小波分层精度、测井数据sym6小波分解的小层界面划分效果要稍好于db4小波、常规测井曲线正则性小波分解可以很好地满足高分辨率层序地层划分要求。

So supported by well core experimentation, the *** analyzed the logging response feature and mechanism of thin bed, and point out that many factors can affect the logging response of the reservoir, the main factor which mostly influence the logging response is the thickness of thin layer, and the content of carbonite have a great influence on the response of 3-porosity logging.we make use of core experimentation, combined with logging material, firstly the *** do the lithology correction and thinckness correction for resistivity curves, and based on the content of mud that derived from the core experimentation, the *** present the thickness correction model of gamma-ray logging and self-potential logging, and choose the appropriate ways to compute the carbonate content and using the value of mixed frame in order to correct the influence from the carbonite, based on this, the *** gives a effective methods to correct the thickness influence for 3-porosity logging.

本文首先以岩心实验结果为依据，对研究区薄层的测井响应特征和机理进行了分析，指出多种地质因素影响着储层的测井响应特征，而层厚是影响测井响应最主要的因素，且碳酸岩含量对三孔隙度测井的影响很大。利用岩心实验分析资料，结合测井资料，首先对电阻率测井曲线进行了岩性的校正和层厚校正；利用岩心分析泥质含量，研究了自然伽马和自然电位的层厚校正方法，并建立了层厚校正模型；在有效计算储层碳酸岩含量和混合骨架参数值的基础上，研究了针对碳酸岩含量对测井曲线的影响进行校正的方法，进而提出了一套对三孔隙度测井曲线的薄层层厚影响的校正模型。

The first rank derivative is a reflection of curve change and its rate, at certain range, if the sign of the first rank derivative has changed, the logging value of the correspondence depth point means maximum in this range; the second rank derivative is the knaggy property reflection of curve, at certain range, if the sign of the second rank derivative has changed, the correspondence depth point represent the inflexion of geophysical logging curve, it＇s also a turning point of the reflection of knaggy change property of the curve, it is the interface of stratum.

测井曲线的值是深度的函数，测井曲线的一阶导数表示了曲线变化的趋势和变化的快慢，在某一范围内，当一阶导数呈现符号转换时，相对应的深度点的测井值即为该范围内极大值；测井曲线的二阶导数则表示曲线的凹凸性，在某一范围内，当二阶导数呈现符号转换时，相对应的深度点代表了测井曲线的拐点，即反映曲线凹凸性变化的转折点，亦即地层的分界面。

This method can be used to identify the log curve shape and remove some uncertain factors from log data. In this paper, the identification of the actual curve is basically accurate by using the method.

此方法可以对测井曲线形态进行识别，且消除了测井曲线中的不确定因素，运用该方法对实际测井曲线形态的识别基本正确。

Reservoir productive capacity forecast is one of the important content of reservoir evaluation, horizontal well logging interpretation is mainly through the contrast corrected technique of horizontal well conventional log curve and pilot well conventional log curve, adding to the traversing relation between horizontal well track and formation.

储层产能预测是储层评价的重要指标之一。水平井测井解释主要通过常规测井曲线与导眼井常规测井曲线对比校正技术和水平井井眼轨迹与地层穿越关系进行的，尽管该方法能给开发工程师提供大量井眼轨迹与地层关系的信息，但却很难指出水平井钻遇储层的生产油气能力如何，这为油田开发工作带来了困难。

For case study, db4 optimum wavelet base is used to transform GR, SP and AC from a well in Shengtuo oilfield. By this transformation the logging data are expended from one dimensional depth space into two dimensional depth-scale space.

以胜坨油田某井为例，采用db4最佳小波基分别对自然伽马、自然电位和声波等测井曲线进行了多尺度分析，将一维测井数据拓展为二维深度－尺度空间，提取小波变换系数的时频色谱信息和能量信息，从而确定出测井曲线识别准层序界面的最佳尺度。

At first, this dissertation takes the natural gamma log as an example to put forward the regularized least-squared deconvolution theory, with which not only the effect of the surrounding formation is removed, but al so the effects of the well logging velocity, sampling interval, the ratemeter time constant, the detectorlength and the formation dip-angle are re moved.

首先，本文以自然伽马测井曲线为例，研究了正则化最小乘方反褶积方法。应用该方法，不仅消除围岩对自然伽马曲线读数的影响，而且消除测井速度、测井采样间隔和率表电路时间常数的影响。

Based on the method of well-logging multiscale analysis, the multiscale characters and the fusion of logging curves under different scales are studied systematically to extract the multicycle features of strata and to establish the corresponding relation between logging data and strata and therefore the improved logging data can be better applied to the evaluation of sequence stratigraphy. Based on the multiscale analysis theory of wavelet, single logging curve is processed through multiscale analyzing.

本文旨在利用建立的测井多尺度分析方法，系统研究测井信号的多尺度特性和不同测井曲线的多尺度信息融合，从原始测井信号中提取出地层的多旋回特征，建立测井数据向地质目标的映射关系，以期将测井资料更好地应用于层序地层评价。

Improving vertical resolution for density curves is by means of restructuring the response from large and small spacing sondes and borehole effect correction factor and coherence factor are used. Form the principle of GR logging, calculate volumes in investigating areas taken by borehole, formation, up and low shoulder beds, along with distance between center of gravity of the four unit bodies and detector. Based on the above, the weighting function of each unit body to GR signal contributions are established, thus realizing processing of GR logs with high resolution. The resistivity logging model uses "resolution matching" method to improve the resolution of the logs. After the process, PNN model is made to recognize the oil-gas-water bed. Compared with BPNN, the net work is featured swiftness, accuracy and ease of practical application.

提高密度测井曲线垂直分辨率是通过对重新组合长、短源距探测器响应的算法来提高补偿密度曲线的垂直分辨率，并加入井眼影响校正因子和相关性因子；自然伽马测井模型从基本原理出发，扣除井的影响，计算井筒、地层及其上下围岩所占探测球域体积及其重心到探测器的距离，以此建立各单元体对伽马测井信号贡献的权函数，通过权函数逐层计算不同厚度地层条件下各的单元体权因子，实现自然伽马曲线高分辨率处理；电阻率校正模型应用&分配率匹配&模型，应用低分辨率曲线提高为高分辨率曲线：曲线校正后，利用常规测井资料并且结合校正后的密度、伽马、电阻率等三个对判断油水层有利的指标，通过概率神经网络模型识别储层流体性质，较以前的模型，不仅极大的提高识别正确率，同时与普通神经网络相比较，提高了网络的运行速度和实用性。

Taking an old gas field in the Sichuan Basin as an example, this paper selected the wells with complete logging suite, and took the core analysis data as the research understructure. On the basis of accurate lithology identification, the log data numerical processing with high precision was completed by applying optimal log interpretation method. The comprehensive reservoir log interpretation was carried Out and a good result was obtained for the fine log processing and interpretation of reservoirs at 10 wells in this old gas field in the Sichuan Basin by use of such a method.

为此，以四川盆地的某老气田为例，提出了利用测井曲线相对齐全的关键井来构建其他老井测井曲线的新方法，并以岩心分析资料为研究基础，应用最优化测井解释方法，在准确识别岩性的基础上对该气田10口井完成较高精度的测井资料进行了数字处理。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。