岔路河双二段致密气成藏机制

发布时间：2018-04-16 11:17

本文选题：岔路河双二段 + 地层格架　；参考：《东北石油大学》2015年硕士论文

【摘要】：吉林油田公司伊通盆地油气勘探近年来取得了许多突破性进展,在盆地构造特征、地层层序、沉积相储层特征、油气成藏条件和分布规律等方面取得了许多新的成果认识,通过新方法、新技术的运用,对断陷盆地地质认识程度也逐渐提高,落实了一批油气储量,尤其是在岔路河断陷中深层双阳组通过储层改造发现了工业性气层,开创了中深层低渗透储层天然气勘探的新局面。由于前期的勘探评价工作多致力于中浅层油气勘探,未系统进行低渗储层气藏形成机理和控制因素的研究工作,成藏机理尚不清楚,致使天然气分布规律不清,制约着天然气的勘探工作的顺利进行。有必要对有效储层的分布和形成机理开展针对性地研究工作,对中深层低渗砂岩气成藏的有利区带做出预测。以地层层序划分与对比、建立等时地层格架,做到单井岩心相、测井相和地震相三相统一,明确沉积体系、沉积相及砂体纵横向变化特征。在对致密储层岩石学特征、储层物性特征、孔隙结构特征、成岩演化史及次生孔隙成因研究的基础上,分析致密砂岩储层的成因,特别是相对高渗储层的成因,探讨有利储层的控制因素,建立预测方法。确定低渗气藏形成机制,建立低渗储层天然气运聚模型。确定富气规律和控制因素,进行有利区带优选、勘探潜力和资源潜力的评价。
[Abstract]:Yitong Basin oil and gas exploration in Jilin Oilfield Company has achieved many breakthroughs in recent years, the tectonic characteristics, stratigraphic sequence, sedimentary facies, reservoir characteristics, accumulation conditions and distribution of oil and gas has made many new achievements, through the new method, the application of new technology, also gradually improve the rift basin geology understanding degree, the implementation of a number of oil and gas reserves, especially in Chaluhe depression in deep Shuangyang group found industrial gas reservoir through the reservoir transformation, creating a new situation of natural gas exploration in the deep layer of low permeability reservoir. The exploration evaluation of previous work focused on the shallow oil and gas exploration no, the system working mechanism of reservoir formation and controlling factors of the reservoir of low permeability gas reservoir, the mechanism is not clear, resulting in the natural gas distribution is not clear, which restricts the natural gas exploration work smoothly. It is necessary to effective reservoir The distribution and formation mechanism to carry out targeted research work, with predicted favorable areas of deep low permeability to Sawa Kesunghide. Stratigraphic sequence division and correlation, the establishment of the isochronous stratigraphic framework, to achieve a single well core, well logging and seismic phase unified, clear sedimentary system, sedimentary facies and sand body vertical the variation characteristics on characteristics of tight reservoir petrology, reservoir characteristics, pore structure characteristics, based on diagenetic history and secondary pore Genesis evolution, analysis of the causes of the tight sandstone reservoir, especially the relatively high permeability reservoir causes, discussion on the control factors of reservoir, establish the prediction method. To determine the mechanism of the formation of low permeability gas reservoir, a reservoir of natural gas migration and accumulation model of low permeability gas rich. Determine the pattern and controlling factors of favorable zone optimization, exploration potential evaluation and potential resources.

【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13

【参考文献】