M凹陷潜山储层测井精细评价

发布时间：2018-01-22 07:48

  本文关键词： 潜山储层 岩性识别 储层识别 最优化孔隙度　出处：《东北石油大学》2017年硕士论文　论文类型：学位论文

【摘要】：M凹陷位于中国石油海外区块,2010年潜山成为该区勘探的目的层之一,已经成为增储上产的重要方向。随着勘探工作的不断深入,潜山储层的复杂性也逐渐显示出来。岩心分析显示,该区岩性相当复杂种类多达40多种,储层主要储集空间有构造裂缝、构造-溶解缝、破碎粒间孔及溶孔,储集空间类型多样。如何利用测井资料识别岩性和储层成为急需解决的技术难题。本文从岩心分析出发,明确M凹陷潜山岩性地质学分类,在此基础上总结该区岩石测井响应特征,确定了岩性测井分类,并提出了利用测井曲线识别岩性的方法和标准;综合分析常规、声电成像等测井资料,结合试油结果,提出了潜山储层识别和分类的方法和标准;利用三孔隙度测井资料,结合岩心分析资料,提出了三孔隙度最优化组合计算储层孔隙度的方法;通过岩石分布规律、岩石力学特征和裂缝发育情况的分析,明确了混合岗岩类、酸性岩、混合片麻岩为本区的优势岩性,较易发育储层。建立了一套M凹陷潜山储层的测井评价方法和标准,在勘探开发中取得的了良好的效果。可作为该区潜山地层测井解释先导,为该区储量的落实提供了依据,为该区潜山进一步勘探开发提供测井技术支持。该研究成果将对中石油海外区块的潜山测井评价具有借鉴意义。
[Abstract]:M sag is located in CNPC overseas block. In 2010, buried hill became one of the target layers of exploration in this area, which has become an important direction of increasing reservoir and production. Core analysis shows that there are more than 40 kinds of complex lithology in this area, and the main reservoir spaces are structural fractures, structure-dissolved fractures, broken intergranular pores and dissolved pores. Reservoir space types are diverse. How to use logging data to identify lithology and reservoir becomes a technical problem that needs to be solved. This paper makes clear the classification of lithology and geology of buried hill in M sag based on core analysis. On this basis, the response characteristics of rock logging in this area are summarized, the classification of lithologic logging is determined, and the method and standard of lithology identification by logging curve are put forward. Based on the analysis of conventional, acoustic and electrical imaging logging data and combined with the results of oil testing, the methods and standards for identifying and classifying buried hill reservoirs are put forward. Based on the three porosity logging data and the core analysis data, a method of calculating reservoir porosity is put forward by the combination of three porosity optimization. Through the analysis of rock distribution law, rock mechanics characteristics and fracture development, the dominant lithology of mixed granite, acid rock and mixed gneiss is determined. A set of logging evaluation methods and standards for buried hill reservoir in M sag have been established, and good results have been obtained in exploration and development, which can be used as a guide for logging interpretation of buried hill formation in this area. It provides a basis for the implementation of reserves in this area and provides logging technical support for further exploration and development of buried hill in this area. The research results will be useful for the evaluation of buried hill logging in CNPC overseas blocks.
【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2017
【分类号】：P618.13;P631.81
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本文编号：1454124