松辽盆地古龙南地区葡萄花油层成藏规律研究

发布时间：2018-05-22 15:03

  本文选题：松辽盆地 + 葡萄花油层　； 参考：《东北石油大学》2015年硕士论文

【摘要】：松辽盆地是油气资源丰富的陆相含油气盆地,随着油气田勘探开发的深化,勘探开发对象的复杂程度逐年增高,油田含水上升较快,开采难度不断增加。古龙南地区作为松辽盆地产油的重要区块之一,为了更好的勘探开发该区块,结合前人研究成果,利用古龙南地区葡萄花油层详实的岩心、地震、测井及钻井等资料,对古龙南地区构造特征、沉积演化、物源控制及成藏模式进行了精细研究,总结了该区的油气富集规律,确定了有利油气富集区。经过研究分析表明,研究区的凹凸构造格局为明水组末期形成,断层主要变形期为青山口组至嫩江组沉积期,首次提出茂兴三维区发育有油源多边形断层,为油气垂向提供充足的垂向输导通道;研究区葡萄花油层主要受北部和西北部物源控制,主体物源为北部物源,主要砂体为水下分流河道、河口坝和席状砂,砂体平面上厚度分布不均匀,呈现西北厚,东南薄的趋势,P下和P上砂体薄、分布范围小,P中砂体厚、分布范围广;研究区油水垂向分布存在5种类型,即全井纯油型、上油下水型、油水同层型、全井纯水型、杂乱型。油主要分布在PⅠ1-PⅠ6小层;研究区共存在7种油气藏类型,主要发育有构造油藏、断层岩性油藏、构造岩性油藏、砂岩透镜体油藏及砂岩上倾尖灭油藏,通过油藏解剖、主控因素分析,确定新站西、肇西、肇南斜坡区主控因素为断砂匹配,敖南鼻周边斜坡区,储集砂体富集程度为成藏主要控制因素。从构造、沉积、油藏等多方面考虑,对目前开发的空白区进行了有利区预测,提交建议井位4口,为古龙南地区葡萄花油层下一步增储上产指明了方向。
[Abstract]:Songliao Basin is a continental oil-bearing basin rich in oil and gas resources. With the deepening of exploration and development of oil and gas fields, the complexity of exploration and development objects increases year by year, the water cut of oil field rises rapidly, and the difficulty of exploitation increases continuously. As one of the important oil production blocks in Songliao Basin, Gulongnan area, in order to better explore and develop the block, combined with previous research results, using the detailed core, earthquake, logging and drilling data of Gulongnan area, The structural characteristics, sedimentary evolution, provenance control and reservoir forming model in Gulongnan area are studied in detail, and the oil and gas enrichment laws in this area are summarized, and favorable oil-gas accumulation areas are determined. The research and analysis show that the concave and convex tectonic pattern of the study area is formed at the end of Mingshui formation, and the main deformation period of the fault is the sedimentary period from Qingshankou formation to Nenjiang formation. It is the first time that the oil source polygonal fault developed in the three dimensional area of Maoxing. The study area is mainly controlled by the north and northwest provenances, the main provenance is the northern provenance, the main sand body is the underwater distributary channel, the estuarine dam and the sheet sand. The thickness distribution of sand body on the plane is not uniform, showing the trend of northwest thickness and southeast thickness. The sand body is thin under P and on P, and the distribution range is small. There are five types of vertical distribution of oil and water in the study area, that is, the oil and water vertical distribution of the whole well is pure oil type. Oil-on-water type, oil-water same-layer type, all-well pure water type, messy type. The oil is mainly distributed in P 鈪，

本文编号：1922562