束鹿凹陷西斜坡油氣輸導(dǎo)體系及其成藏貢獻研究
[Abstract]:With the continuous improvement of the exploration degree of the western slope of Shulu sag, the oil and gas exploration targets are becoming more and more subtle, the exploration difficulty is becoming more and more difficult, and the difficulty of discovering large-scale reserves is gradually increasing. The transportation system has always been an important part of the study of oil and gas accumulation in the western slope of Zulu, but the research status of the transportation system can not meet the needs of modern exploration objects and exploration directions, and is one of the main factors restricting efficient exploration. The purpose of this study is to clarify the types and distribution characteristics of oil and gas transportation system on the west slope of Xianlu, and to clarify its contribution to oil and gas accumulation, so as to provide a guarantee for efficient exploration in Shulu sag. Based on the previous research results, this paper reunderstands the structure, deposition and reservoir development of the western slope of Shulu sag according to the latest data, dissects the typical oil and gas reservoirs, and on the basis of the study of static reservoir forming elements and dynamic reservoir forming process, The development, evolution, characteristics and distribution of each element or unit in the framework of the transportation system of the western slope of Shulu sag are deeply studied by means of geochemical feature tracking, computer simulation, physical simulation experiments and other effective methods. The combination mode of the basic units of the transportation and transportation system is clarified, the contribution of different transportation systems to oil and gas accumulation is analyzed, and the favorable exploration direction for the next step is clarified. Through the study, it is found that there are two types of oil and gas transport systems in the Xiulu sag. The oil and gas transport system is vertical along the inner zone fault, then unconformity, and the sand body migrates laterally to the outer zone of the high position. The oil and gas accumulation mainly distributed in the forward back-shaped dense zone and roof ridge-type dense zone. It is found that the strong reverse toothbrush transportation system and the double-sided toothbrush transportation system contribute the most to the oil and gas accumulation in the study area, and the study shows that the formation period of the Shulu west slope transportation system controls the formation period of oil and gas reservoirs. This study has guiding significance for the study of oil and gas transportation system and reservoir control in the slope area of the same kind of fault depression, and has important reference value for oil and gas exploration in the slope zone of fault depression.
【學位授予單位】:東北石油大學
【學位級別】:碩士
【學位授予年份】:2017
【分類號】:P618.13
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