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怎样挖掘测井曲线隐含的巨量有用信息,一直为地质家关注,在岩心中提取地质信息,并建立它与测井曲线的刻度关系,可能是一条有效途径.但这一思路在测井技术中缺少尝试,究其原因在于,测井技术手段是以地球物理为基础.该思维方法赋予“岩心刻度”测井技术的思路是,应用数理统计的方法建立测井资料与岩心分析数据之间的关系,为孔隙度、渗透率及饱和度等参数建模提供依据.该方法有助于测井解释模型的建立,但对于复杂致密储层研究,仍存在明显不足:一是缺乏地质背景解读的测井评价技术本身就不完美;二是现代油气勘探开发目标的复杂化和隐蔽性,迫使地质家急需分析和判断的证据.本文针对上述问题,提出基于岩心刻度的测井地质分析方法,该方法以地质事件为基本单元,以连续岩心中可实证的地质事件识别为依据,以地质原理和成因关系分析为认识基础,刻度测井曲线响应,达到利用测井曲线辨认地质事件的目的.文中以风暴岩、冲刷面、不同河道识别以及水进事件等地质事件的岩心刻度测井分析为案例,介绍了本方法的具体应用.
It may be an effective way to tap the huge amount of useful information implied by the well logging curve, keep a focus on the geologists, extract the geological information in the core, and establish the scale relationship between it and the well logging curve. However, The reason for this lack of experimentation is that the logging technique is based on geophysics, and the idea that this method of thinking imparts to the “core scale” logging technique is to apply mathematical statistics to establish logging data and core analysis The data provided a basis for the modeling of parameters such as porosity, permeability and saturation, etc. This method is helpful to the establishment of logging interpretation model, but there are still some shortcomings in the study of complex and tight reservoirs. One is the lack of The logging evaluation technology interpreted by geological background is not perfect per se.Secondly, the complexity and concealment of modern oil and gas exploration and development goals force the geologists to urgently need evidence for analysis and judgment.In this paper, the log geology The method takes the geological event as the basic unit and based on the identifiable geological events in the continuous core, based on the analysis of the geologic principle and genesis, Based on the well logging curves and response of the logging curves to achieve the purpose of using the well logging curves to identify geological events.This paper introduces the method of core scale log analysis of geological events such as storm rock, scouring surface, identification of different watercourses, The specific application.