MRIL-P型核磁共振测井资料处理解释软件的设计与实现

发布时间：2018-06-06 01:17

本文选题：MRIL-P型核磁 + 数据预处理　；参考：《吉林大学》2017年硕士论文

【摘要】：目前,P型核磁共振测井仪是国内应用比较多、效果也比较好的核磁共振测井仪器,主要使用Petrosite软件进行资料的处理解释。该软件的价格比较昂贵,而且由于缺少软件的源代码,所以很难在其上进行有针对性的二次开发。开发一套有自主知识产权的核磁共振测井资料处理解释软件,一方面可以作为核磁共振测井资料的国外处理解释方法和系统的部分替代品降低成本;另一方面,在以后的生产科研中可以进行有针对性的二次开发,有利于推广和完善核磁共振测井资料处理解释技术,对油田的勘探开发工作起到积极的作用。本文从P型核磁共振测井资料处理流程的角度出发,开发了数据格式解编、观测模式的分析和自动识别、原始测量数据预处理、T2谱反演与区间孔隙分离、储层参数计算、核磁成果图开发与链状处理流程等软件模块。在时间域m.cls数据格式解编上,通过分析数据特点,成功提取了原始数据信息,与引进软件对比保持一致;在原始数据预处理上,通过对80余种观测模式的分析,实现了模式自动识别,确定了 5个步骤实现回波串数据的提取;基于奇异值分解截断法开发了 T2谱反演方法,并采用三次样条插值实现了 T2谱平滑和拼接,反演得到的总孔隙度和有效孔隙度曲线均与引进软件效果保持基本一致,平均绝对误差小于0.3%;根据多种方法完成了渗透率参数计算,并与常规曲线结合利用双水模型求取了含水饱和度,两条曲线的计算结果都与引进软件处理结果吻合;在软件开发上,通过链状处理流程技术和高效绘图技术,使整套软件的处理效率大大提高,较引进软件提高3倍以上。通过选取若干井次的核磁测井资料对软件处理结果进行了验证和评价,本文开发的软件可满足核磁测井的实际需要。在论文的最后,对本软件的发展和应用前景进行了分析和展望。
[Abstract]:At present, P NMR logging tool is a nuclear magnetic resonance logging tool with more application and better effect in China. It mainly uses Petrosite software to process and explain the data. The price of the software is very expensive, and because of the lack of software source code, it is difficult to develop a targeted two development. NMR logging data processing and interpretation software of main intellectual property rights can be used as a foreign processing and interpretation method of magnetic resonance logging data and some substitutes of the system to reduce cost. On the other hand, two times of targeted opening can be carried out in future production and scientific research, which is beneficial to the promotion and improvement of NMR logging funds. The data processing and interpretation technology plays an active role in the exploration and development of the oil field. From the point of view of the P NMR logging data processing process, this paper develops the data format solution, the analysis and automatic recognition of the observation mode, the preprocessing of the original measurement data, the T2 spectral inversion and the interval separation, the calculation of the reservoir parameters and the NMR results In the time domain m.cls data format, the original data information is successfully extracted by analyzing the data format of the time domain. In the original data preprocessing, the pattern recognition is realized through the analysis of more than 80 kinds of observation modes, and 5 steps are determined to realize the return. The T2 spectral inversion method is developed based on the singular value decomposition and truncation method, and the T2 spectrum smoothing and splicing are realized by three spline interpolation. The total porosity and effective porosity curves obtained by the inversion are all consistent with the imported software, and the average absolute error difference is less than 0.3%. The parameters are calculated and the water saturation is obtained by using the double water model combined with the conventional curve. The results of the two curves are all consistent with the results of the imported software. In the software development, the processing efficiency of the whole software is greatly improved by the chain processing technology and the efficient drawing technology, and 3 times more than that of the imported software. The results of the software processing are verified and evaluated by the NMR logging data from several wells. The software developed in this paper can meet the actual needs of NMR logging. At the end of the paper, the development and application prospect of the software are analyzed and prospected.
【学位授予单位】：吉林大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P631.83

【相似文献】