松辽盆地安达中基性火山岩储层测井解释评价技术研究

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英文题名：Study in Logging Interpretation and Evaluation of the Intermediate and Basic Volcanic Reservoir in Anda Area of Songliao Basin 作者：付晨东 论文级别：硕士 学科专业名称：地质学 中文关键词：中基性火山岩 ; 饱和度模型 ; 裂缝参数 ; 中基性火山岩流体性质 英文关键词：intermediate and basic volcanic rock ; saturation model ; fracture parameter ; fluid property identification 学位年度：2010 导师：厉子龙 ; 李庆峰 学科代码：070904 学位授予单位：浙江大学 论文提交日期：2010-06-01 答辩委员会主席：戴跃进

摘要

本文主要针对松辽盆地安达地区中基性火山岩储层解释评价难点,在已形成的火山岩岩性识别的基础上,完善了中基性火山岩成分类别确定方法,完成了13口单井测井资料的岩性识别,岩性识别符合率达到93.1%；以岩石分析资料和微裂缝模拟井的数据为基础,应用常规测井资料建立了火山岩基质孔隙度、渗透率计算方法,基质孔隙度平均绝对误差为1.1%,渗透率平均相对误差为53%,应用成像测井资料建立了裂缝孔隙度定量计算方法。以非均质复杂岩性基质饱和度定量计算理论为基础,结合模拟地层条件下中基性火山岩全直径岩电、核磁共振以及岩心数值模拟实验,确定了中基性火山岩储层导电机理,并建立了按孔隙结构动态变化的中基性火山岩饱和度模型。利用建立的中基性火山岩饱和度模型处理了15口井资料,计算的含气饱和度与试气结果对比,符合率为87.5%。建立了中基性火山岩气水层解释图版,提出了中基性火山岩流体性质识别方法,建立了解释评价流程,实际应用表明,效果较好,提高了区块的测井解释符合率。本文研究的中基性火山岩解释评价技术不仅对研究区的油气勘探有一定的突破,对我国其它地区的火山岩及海相碳酸盐岩油气藏测井解释评价同样具有重要的现实意义。
Aiming at the difficulties in interpretation and evaluation of the deep-zone intermediate and basic volcanic reservoir of Anda area of Songliao basin, Based on the lithologic identification, the classification of intermediate and basic volcanic reservoir by its composition is improved. Its application in logging data of 13 wells proved an actual lithologic coincidence rate of 93.1%. Based on the data from rock analysis, model well, and conventional logging, a method of matrix porosity and permeability calculation for volcanic reservoir is set up, and its application proved the mean absolute error of 1.1%,and mean relative error of permeability of 53%. On the basis of imaging logging, a method of fracture porosity quantitative calculation is proposed. According to heterogeneous rock theory of quantitative calculation of saturation, electrical property experiments, nuclear magnetic resonance experiments, and numerical simulation on full-diameter drilling core under the simulated formation conditions, the conduction mechanism of intermediate and basic volcanic reservoir is determined and a dynamic saturation calculation model is established in accordance with the type of pore structure. Its application in processing logging data of 15 wells resulted in an accuracy of 87.5% according to the actual well testing. Moreover, both of the interpretation chart of gas-water layer and the flow chart of interpretation and evaluation for volcanic reservoir are established, and the identification method for fluid property is proposed. Practical application has proved a well bettered block interpretation accuracy. All the above-mentioned technology has made a breakthrough in hydrocarbon exploration in our research region, and can also be a guide to volcanic or carbonate reservoir logging interpretation of other district of our country.

引文

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