松辽盆地南部中性火山岩和沉火山碎屑岩储层发育规律与评价

发布时间：2018-01-05 15:31

  本文关键词：松辽盆地南部中性火山岩和沉火山碎屑岩储层发育规律与评价　出处：《吉林大学》2016年博士论文　论文类型：学位论文

  更多相关文章： 松辽盆地南部 中性火山岩 界面控储效应 沉火山碎屑岩 异常高孔渗带 成因分析 储层孔隙结构表征 储层分类评价

【摘要】：在松辽盆地南部王府、英台断陷深层火山岩储层实际勘探开发过程中,遇到了一些阻碍火山岩油气精细勘探开发的问题,诸如：(1)中性火山岩类和沉火山碎屑岩类储层分布规律和形成机制等研究相对较少；(2)现行火山岩储层分类评价标准过于笼统,缺乏针对不同岩性的标准,并缺乏储层孔隙结构参数的约束。针对以上问题,本文以松辽盆地南部王府断陷火石岭组中性火山岩和英台断陷营二段沉火山碎屑岩为研究对象,综合利用岩心、薄片、分析测试、测井、地震等资料,研究了两类火山岩储层的孔隙特征,探讨了储层的控制因素及成因,并初步建立了基于储层孔隙结构定性和定量表征约束下的不同岩性火山岩储层分类评价标准。开展的主要工作和获得的主要成果认识包括：(1)针对松辽盆地南部王府断陷火石岭组中性火山岩,从岩性、岩相、埋深、火山机构和火山地层界面与储层的关系入手,分析了其储层发育规律。以中性火山熔岩为例,探讨了火山地层界面的控储效应和控储机制,据此指出有利勘探目标,并经勘探证实。(2)针对松辽盆地南部英台断陷营城组二段埋深大于3100m的沉火山碎屑岩,多角度揭示了盆地深层沉火山碎屑岩异常高孔渗带的成因,指出成岩过程中的溶蚀作用是其主控因素。(3)分岩性,在孔隙结构定性、定量表征及其与比采气指数对比的基础上,进行了35口井388套样本8个参数的储层物性聚类分析,确定了有效储层物性下限,给出了不同岩性的有效储层分类评价标准。
[Abstract]:In the process of actual exploration and development of deep volcanic rock reservoir in Yingtai fault depression in Wangfu in the south of Songliao Basin, some problems have been encountered which hinder the fine exploration and development of volcanic oil and gas. For example, there are few studies on the distribution and formation mechanism of neutral volcanic rocks and sedimentary clastic reservoirs. 2) the current criteria for classification and evaluation of volcanic reservoirs are too general, lack of criteria for different lithology, and lack of constraints of reservoir pore structure parameters. In this paper, the neutral volcanic rocks of Huoshiling formation in Wangfu fault depression in the south of Songliao Basin and the sedimentary pyroclastic rocks of Ying2 member of Yingtai fault depression in Yingtai fault depression are taken as research objects. The data of core, thin slice, analysis and test, well logging and earthquake are used synthetically. The pore characteristics of two types of volcanic reservoirs are studied and the controlling factors and genesis of the reservoirs are discussed. The criteria for the classification and evaluation of volcanic reservoirs with different lithology based on the constraints of qualitative and quantitative characterization of reservoir pore structure are preliminarily established. This paper aims at the neutral volcanic rocks of Huoshiling formation in Wangfu fault depression in the south of Songliao Basin. Starting from the relationship between lithology, lithofacies, buried depth, volcanic mechanism and interface between volcanic strata and reservoir, the reservoir development law is analyzed. The neutral volcanic lava is taken as an example. The reservoir control effect and reservoir control mechanism of volcanic strata interface are discussed, and the favorable exploration targets are pointed out. In view of the sedimentary pyroclastic rocks in the second member of Yingcheng formation of Yingtai fault depression in southern Songliao Basin, the origin of abnormal high porosity and permeability zone of deep submersed pyroclastic rocks in the basin is revealed from various angles. It is pointed out that the dissolution in diagenesis is its main controlling factor. It is based on the qualitative and quantitative characterization of pore structure and its comparison with specific gas recovery index. Based on the cluster analysis of reservoir physical properties of 388 sets of samples and 8 parameters in 35 wells, the lower limit of effective reservoir physical properties is determined, and the effective reservoir classification and evaluation criteria for different lithology are given.
【学位授予单位】：吉林大学
【学位级别】：博士
【学位授予年份】：2016
【分类号】：P618.13
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本文编号：1383740