松辽盆地肇51-59井区葡萄花油层有利区块优选
发布时间：2019-06-13 11:27
【摘要】：肇51-59井区位于黑龙江省大庆市境内,构造位置位于松辽盆地三肇凹陷,研究区面积约为19km2。论文针对研究区构造特征认识欠精准,沉积微相相带和砂体分布不清晰等问题,利用地质、地球物理及油气测试资料,重点对区块的构造特征,沉积微相以及砂体分布进行研究,最后综合油藏特征,优选有利区。主要取得的成果与认识如下:(1)利用三维可视化技术以及相干体切片技术进行构造解释,精细识别了小断层,重新修编断层组合关系。解释结果表明,研究区构造呈南高北低的趋势,断层分布极其复杂,主断层与派生断层纵横交错形成棋盘网状格架,形成了研究区众多的断鼻、断块等构造。(2)在前人研究成果的基础上,明确葡萄花油层为三角洲前缘亚相沉积,主要发育水下分流河道,河口坝,席状砂和前缘泥四种沉积微相。物源方向为南北向,垂向上表现为水进-水退-水进的演化特征。研究区东北部由北向南主要发育一条水下分流河道,在井区中南部分支为向西南和东南延伸的两条分流河道。河口坝小范围发育,席状砂广泛发育。(3)利用地震属性资料,以实钻数据资料为约束,运用多元逐步回归分析法进行砂体预测,明确研究区葡萄花油层砂体总体呈南北向条带状展布,中部厚,东西薄,尤其以中南部砂体最为发育,预测厚度为8-10m。砂岩预测结果与实钻砂岩厚度吻合程度高,预测效果较好。(4)在明确构造特征及油藏特征的基础上,结合砂体预测成果与区内完钻井试油情况,在研究区优选出5个有利区,其中包括2个Ⅰ类有利区,3个Ⅱ类有利区。
[Abstract]:The well area of the Well Q51-59 is located in the city of Daqing, Heilongjiang Province. The structural position is located in the Sanqi depression of the Songliao Basin. The area of the study area is about 19km2. The paper studies the structural characteristics, sedimentary microfacies and sand body distribution of the block by using the geological, geophysical and oil-gas test data, and finally, the characteristics of the reservoir are integrated. A preferred region is preferred. The main results and the recognition are as follows: (1) The structure interpretation is carried out using the three-dimensional visualization technique and the coherent body slicing technique, and the small fault and the re-repair fault combination relationship are fine identified. The results show that the structure of the study area is in the south and the north is low, the fault distribution is extremely complex, and the main fault and the derived fault crisscross to form a chessboard grid, so as to form a large number of fault nose, fault block and other structures in the research area. (2) On the basis of the previous research results, it is clear that the hydatidiform oil layer is the delta front subfacies deposit, which mainly develops four sedimentary microfacies of the underwater distributary channel, the river mouth dam, the mat-like sand and the leading edge mud. The source direction of the material is the north-south, and the vertical direction is the evolution of the water-in-water-water-return-water. The north-east of the study area is mainly developing an underwater distributary channel from the north to the south, and the south-central part of the well area is divided into two distributary channels extending to the southwest and southeast. The small-scale development of the river-mouth dam and the wide development of the mat-like sand. (3) Using the data of the seismic attribute and using the real-drilling data as the constraint, the sand body is predicted by the multi-element stepwise regression analysis method, The predicted thickness is 8-10m. The result of the sandstone prediction is high with that of the real-drilling sandstone, and the prediction effect is good. (4) Based on the clear structural characteristics and the characteristics of the reservoir, in combination with the prediction results of the sand body and the completion of the drilling test in the area, five favorable areas are preferred in the study area, including 2 favorable areas of Class I and 3 class II favorable areas.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13
本文编号：2498498
[Abstract]:The well area of the Well Q51-59 is located in the city of Daqing, Heilongjiang Province. The structural position is located in the Sanqi depression of the Songliao Basin. The area of the study area is about 19km2. The paper studies the structural characteristics, sedimentary microfacies and sand body distribution of the block by using the geological, geophysical and oil-gas test data, and finally, the characteristics of the reservoir are integrated. A preferred region is preferred. The main results and the recognition are as follows: (1) The structure interpretation is carried out using the three-dimensional visualization technique and the coherent body slicing technique, and the small fault and the re-repair fault combination relationship are fine identified. The results show that the structure of the study area is in the south and the north is low, the fault distribution is extremely complex, and the main fault and the derived fault crisscross to form a chessboard grid, so as to form a large number of fault nose, fault block and other structures in the research area. (2) On the basis of the previous research results, it is clear that the hydatidiform oil layer is the delta front subfacies deposit, which mainly develops four sedimentary microfacies of the underwater distributary channel, the river mouth dam, the mat-like sand and the leading edge mud. The source direction of the material is the north-south, and the vertical direction is the evolution of the water-in-water-water-return-water. The north-east of the study area is mainly developing an underwater distributary channel from the north to the south, and the south-central part of the well area is divided into two distributary channels extending to the southwest and southeast. The small-scale development of the river-mouth dam and the wide development of the mat-like sand. (3) Using the data of the seismic attribute and using the real-drilling data as the constraint, the sand body is predicted by the multi-element stepwise regression analysis method, The predicted thickness is 8-10m. The result of the sandstone prediction is high with that of the real-drilling sandstone, and the prediction effect is good. (4) Based on the clear structural characteristics and the characteristics of the reservoir, in combination with the prediction results of the sand body and the completion of the drilling test in the area, five favorable areas are preferred in the study area, including 2 favorable areas of Class I and 3 class II favorable areas.
【学位授予单位】：中国地质大学(北京)
【学位级别】：硕士
【学位授予年份】：2015
【分类号】：P618.13
【参考文献】
相关博士学位论文 前3条
1 丛琳;三肇凹陷东部葡萄花油层高分辨率层序地层及成藏规律研究[D];东北石油大学;2011年
2 黄薇;松辽盆地古龙凹陷中段葡萄花油层精细层序划分与沉积相研究[D];中国地质大学（北京）;2010年
3 杨庆杰;松辽盆地北部大庆长垣扶余油层油气成藏特征[D];中国地质大学（北京）;2013年
，本文编号：2498498
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