【作者】 马朋善；

【导师】 郑浚茂；

【作者基本信息】 中国地质大学（北京） ， 矿产普查与勘探， 2005， 博士

【摘要】 论文以作完成的三维高分辨地震资料的研究实践为基础,研究了高分辨率地震储层反演和储层预测的原理、方法及应用效果,重点研究高分辨率地震的反演处理方法理论及预测技术。其主要目的是针对陆相盆地的特殊性以及所限的资料条件,综合应用高分辨率地震、地质、测井、钻井、试油试采等多种信息开展高分辨率地震反演、储层预洲和油气检测等方面研究,探索出一条适合陆相地质条件的砂泥岩薄互层预测的切实可行的方法技术,从而达到提高储层和油气预测精度的目的。研究工作中原油田文一濮地区三维高分辨率地震资料为基础,进行高分辨率三维地震的储层反演预测及相关内容的研究。主要研究内容为:通过砂泥岩互层模型试验,分析了不同的砂泥岩组合的地震反射特征以及其分辨储层的能力,分析认为,薄互层反射波的振幅强弱主要由物性差异决定,频率对薄层厚度的敏感度与地层厚度成正比,反射波具有振幅调谐和频率调谐作用。采用先进的技术进行三维高分辨率采集、处理和解释,提高了地震资料的分辨率和解释精度。高分辨率采集主要采用“三高”、“二低”、“二小”、“二新”技术;高分辨处理,采用了一系列提高信噪比的方法,应用了有效的展信号频带的方法等。使地震剖面的分辨率有了大幅度的提高,原有资料的频率平均提高10-15Hz,主频在2500米处达到80Hz,频宽达到150Hz,为薄层的识别和岩性研究以及小断层和小断块的解释提供了可靠的资料。高分辨率解释方面,分别采用分步解释方法和高分辨率全三位儿解释方法、以及小幅度构造精细成图技术,分别从宏观地质体解释与小地质体解释相结合,从点面结合到三维立体空间相结合的方法。充分利用高分辨率地震资料同相轴多,分辨能力高的特点,进行构造精细解释,发挥了高分辨率地震资料的优势。在高分辨率地震资料的储层反演方面,进行高分辨率反演方法研究,对影响反演结果的各项参数,相关资料的预处理、初始模型的建立、子波分析等进行了系统地分析研究,在此基础上提出了提高地震反演精度和分辨率的多分辨率、分步反演的方法和技术思路。最后对储层的综合解释方法进行了系统研究,提出了包括数据驱动、门槛值法等几种更加有效的储层参数解释方法,有效地提高了储层参数的解释精度。应用砂泥岩互层的高分辨率储层反演和预测技术,预测储层的能力大大增强,反演资料基本上能够解释10米左右的薄层。更多还原

【Abstract】 Thesis takes the research completed by author using three-dimensional high resolution seismic data as foundation, studying the technology, theory and effect of high resolution seismic reservoir inversion and prospect. As the important aspect, the high resolution inversion technique and prospect technology are studying. The main objective is studying high resolution inversion technique and prospect technology integrating high resolution seismic data, geologic data logging, drilling, testing etc, aim at the special of the basin and the data condition limit. And that, finding an effective prospect method and technology that adapt to the thin interbcds of sandstone and mudstone, so that the precision of oil and gas prospect can be improved . The study work is based on the 3D high resolution seismic data of wen pu region, carrying on 3D high resolution seismic study of inversion and prospect and related contents: Analyzing the §eismic reflect characteristic of the different combination of sandstone and mudstone and it distinguishes ability to the reservoir, through the model experiment of the thin interbeds of sandstone and mudstone. Analyzing to think, the amplitude of the seismic mainly is decided by the thing difference, the frequency becomes the direct proportion to the sensitive degree and the geologic layer thicknesses of the thin layer thickness, reflecting wave has the tune domino effect of the amplitude and frequency. The forerunner’s technique are adopted to carry on the three high resolution seismic acquisition processing and interpretation so that the seismic resolution and accuracy were improved, the "three high" "two low" "two small" "two new" technique are adopted in high resolution seismic acquisition and some methods are adopted to improve the sign-to-noise such as expending the width of sign etc .Make the resolution of seismic section had the significant exaltation, the frequency of the original data raise the 10-15 Hz equally, the main frequency attain the 80 Hz in 2500 meters, the bandwidth attain the 150 Hz, identifying for the thin interbcds of sandstone and mudstone and small faulted blocks hermeneutic to provide the dependable data. In the aspect of the high resolution interpretation, adopting to tread to interpretation method and high resolutions separately respectively real three interpretation method, and small range structure is fine the diagram technique, interpretation to interpretation with small geology body to combine together from the macroscopic geology body respectively, from order to face to combine three method that stereoscopic space of 3D combine together. In the high resolution seismic inversion aspect, carrying on the high resolution inversion method research, such as the various parameters of result towards affect inversion, the primal model establishment, the wavelet analysis, etc. putting forward the method and the technique way of multi-resolutions inversion to exaltatcd seismic inversion accuracy and resolution Integrating interpretation method is carryed on finally, put forward to include the dala to drive, the threshold is worth the method etc. several kinds keep the reservoir parameter to interpretation the method more and effectively, raising to keep hermeneutic accuracy of the reservoir parameter availably. ’The applied of the high resolution seismic inversion and prospect technique, the ability that predicts reservoir strengthens consumedly, the inversion data can interpretate the or so and thin bed of 10 meters basically.更多还原