英坨地区萨尔图油层沉积微相特征及沉积环境研究
发布时间：2018-07-27 21:15
【摘要】：综合利用研究区内丰富的岩心、录井、测井、构造和分析化验资料,依照层序地层学与应用沉积学理论相结合的指导思想,通过测井曲线特征识别,将一套适用于三角洲沉积体系的地层精细划分对比技术——“逐级标准等时界面逼近旋回对比”方法应用于英坨地区萨尔图油层,详细划分为了5个沉积时间单元,建立起全区统一、精细的地层格架。为摸清研究区物源方向,依照区域沉积学方法以及碎屑重矿物分析方法,分析得出了英坨地区萨尔图油层的沉积物物源主要来自于西部同一时期的英台水系。在建立精细地层格架、理清物源方向之后,对英坨地区沉积相展布进行了详细分析,提出研究区萨尔图油层主要发育湖相、三角洲前缘亚相和前三角洲相,砂体呈西北-东南向展布,其骨干砂体主要为水下分流河道砂体,局部层位出现河口坝砂体,这构成了萨尔图油层的主要储层。最后在建立地层格架、明确物源方向及研究区砂体空间展布规律的基础上,充分利用油气成藏系统等现代地质学新观点的指导思想,分析区内成藏背景,对现有已发现的油气藏特征及其分布特点进行综合研究,识别出研究区萨尔图油层的油气藏类型主要为构造油藏,局部发育岩性油藏。从而预测松辽盆地南部英坨地区萨尔图油层东南部为有利成藏区;在此区域内预测有利区块5块,并以此研究成果为支撑,指导项目组部署开发井位。
[Abstract]:Based on the abundant core, logging, structural and analytical laboratory data in the study area, and in accordance with the guiding idea of combining sequence stratigraphy with applied sedimentology theory, the characteristics of logging curves are identified. A set of fine stratigraphic classification and correlation techniques suitable for delta sedimentary systems, "step by step standard isochronous interface approaching cycle correlation" method, are applied to the Saltu reservoir in Yingtuo area, and are divided into five sedimentary time units in detail. Set up the whole area unified, fine stratigraphic framework. In order to find out the direction of provenance in the study area, according to the method of regional sedimentology and clastic heavy mineral analysis, it is concluded that the sediment source of Saltu reservoir in Yingtuo area mainly comes from the Yingtai water system in the same period in the west of China. The distribution of sedimentary facies in Yingtuo area is analyzed in detail after the establishment of fine stratigraphic framework and clear source direction, and the main lacustrine facies, delta front subfacies and pre delta facies are proposed in the study area. The sand body is distributed in the northwest to southeast direction, the main sand body is the underwater distributary channel sand body, and the sand body of estuarine bar appears in the local layer, which constitutes the main reservoir of the Saltu reservoir. Finally, on the basis of establishing stratigraphic framework, defining the direction of material source and spatial distribution of sand bodies in the study area, making full use of the new ideas of modern geology, such as oil and gas accumulation system, to analyze the background of reservoir formation in this area. Based on a comprehensive study of the characteristics and distribution of existing oil and gas reservoirs, it is found that the main types of oil and gas reservoirs in Saartu reservoir are structural reservoirs and locally developed lithologic reservoirs. Thus the southeastern Saltu reservoir in Yingtuo area of southern Songliao Basin is predicted as favorable reservoir forming area and 5 favorable blocks in this area are predicted and the research results are used as the support to guide the project team to deploy the development well site.
【学位授予单位】：新疆大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13
本文编号：2149156
[Abstract]:Based on the abundant core, logging, structural and analytical laboratory data in the study area, and in accordance with the guiding idea of combining sequence stratigraphy with applied sedimentology theory, the characteristics of logging curves are identified. A set of fine stratigraphic classification and correlation techniques suitable for delta sedimentary systems, "step by step standard isochronous interface approaching cycle correlation" method, are applied to the Saltu reservoir in Yingtuo area, and are divided into five sedimentary time units in detail. Set up the whole area unified, fine stratigraphic framework. In order to find out the direction of provenance in the study area, according to the method of regional sedimentology and clastic heavy mineral analysis, it is concluded that the sediment source of Saltu reservoir in Yingtuo area mainly comes from the Yingtai water system in the same period in the west of China. The distribution of sedimentary facies in Yingtuo area is analyzed in detail after the establishment of fine stratigraphic framework and clear source direction, and the main lacustrine facies, delta front subfacies and pre delta facies are proposed in the study area. The sand body is distributed in the northwest to southeast direction, the main sand body is the underwater distributary channel sand body, and the sand body of estuarine bar appears in the local layer, which constitutes the main reservoir of the Saltu reservoir. Finally, on the basis of establishing stratigraphic framework, defining the direction of material source and spatial distribution of sand bodies in the study area, making full use of the new ideas of modern geology, such as oil and gas accumulation system, to analyze the background of reservoir formation in this area. Based on a comprehensive study of the characteristics and distribution of existing oil and gas reservoirs, it is found that the main types of oil and gas reservoirs in Saartu reservoir are structural reservoirs and locally developed lithologic reservoirs. Thus the southeastern Saltu reservoir in Yingtuo area of southern Songliao Basin is predicted as favorable reservoir forming area and 5 favorable blocks in this area are predicted and the research results are used as the support to guide the project team to deploy the development well site.
【学位授予单位】：新疆大学
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13
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1 张伟;高邮凹陷南部陡坡带戴一段沉积相研究及储层评价[D];中国海洋大学;2008年
，本文编号：2149156
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