松辽盆地长46区块扶余油层油成藏规律研究

发布时间：2017-12-31 22:01

本文关键词：松辽盆地长46区块扶余油层油成藏规律研究　出处：《东北石油大学》2016年硕士论文　论文类型：学位论文

【摘要】：充分利用研究区现有资料,对松辽盆地长46区块扶余油层进行构造特征、演化特征研究;分析松辽盆地长46区块扶余油层油气藏类型及分布规律;确定油气来源,技术源岩供烃能力;研究松辽盆地长46区块扶余油层油气运移机制,油成藏模式,总结油成藏主控因素,最终对其油气分布有利区进行优选。通过研究认为,长46区块扶余油层油藏类型主要以断层—岩性油藏为主,其次为岩性油藏,并且有少量的断层遮挡和断块油藏。油在剖面上主要分布在FI和FII油层,在平面主要上分布在断裂密集带和构造高部位;长46区块扶余油层油主要来自于三肇凹陷青一段源岩,三肇凹陷青一段源岩有机质丰度、类型好,进入成熟阶段,可以为长46区块扶余油层踢狗油源;长46区块扶余油层为三角洲分流平原亚相沉积环境,主要发育的是水下和水下分流河道砂体,其次是席坝河席状砂体。纵向上FI砂岩发育,FII砂岩不发育,平面上南部较北部砂体发育;长46区块扶余油层的输导通道是有断裂和砂体构成的,油运移路径有二种,一种是沿断裂配合砂体形成的,研究区主要有两条,分布在西南地区,另一种是沿砂体配合断裂形成的,研究区主要有九条,主要分布在西北部,少量分布在西南地区。长46区块扶余油层的油成藏主控因素主要有三个:1)油运移路径分布控制油分布;2)油运移路径上的构造高部位是油聚集的有利部位;3)断—砂配置类型控制油藏类型。油成藏模式是三肇凹陷青一段源岩生成的油倒灌运移进入扶余油层后在浮力作用下沿断裂配合砂体或沿砂体配合断裂输导通道向长46区块侧向运移,最后在断裂密集带和构造高部位的断砂圈闭中聚集成藏的模式。预测松辽盆地长46区块扶余油层成藏的有利目标区共4个。
[Abstract]:Make full use of the existing data of the study area, Songliao Basin 46 block of Fuyu oil layer structural features, evolution; analysis of reservoir types and distribution in Songliao Basin 46 block of Fuyu oil and gas; determine the source of oil and gas technology, hydrocarbon supplying ability of source rock in Songliao Basin; research 46 block of Fuyu oil and gas migration mechanism oil, oil reservoir model, summarizes the main controlling factors of hydrocarbon accumulation, and ultimately optimize the distribution of oil and gas in this area. It is considered that the 46 block of Fuyu reservoir with the main type of fault lithologic reservoir, the lithologic oil reservoir, and a small amount of fault block and fault block reservoirs. Oil in the section mainly distributed in FI and FII in the reservoir, mainly distributed in the plane on the fault zones and the high position of the structure; 46 block of Fuyu oil layer mainly from three Zhao sag K1qn1 source rocks, three Zhao sag K1qn1 source rock organic matter abundance Degree, type, mature, can be a long 46 block of Fuyu oil kicked the dog oil source; long 46 block of Fuyu reservoir is delta distributary plain facies sedimentary environment, mainly the development of underwater and underwater distributary channel, river dam is the second seat sheet sand. The vertical sand FI FII rocks, sandstone is not developed, the plane of southern than northern sandbody; pathway in Chang 46 block of Fuyu oil reservoir is composed of faults and sand bodies, the oil migration path has two kinds, one is along the fault with the sand bodies formed, there are two main research area, located in the west of China and another is along the sand complex fracture formation, there are nine main research areas are mainly distributed in the northwest, a small amount of the distribution in the southwest region. 46 block of Fuyu oil layer of oil accumulation control there are three main factors: 1) migration path distribution control of oil distribution; 2) migration structure the high position on the path Is the favorable position of oil accumulation; 3) off the sand control configuration type reservoir type. Oil accumulation mode is three Zhaoqing sag K1qn1 source rocks of the oil migration into the Fuyu reservoir after the intrusion under the effect of buoyancy along the fault with sand or sand along with the fault transporting passage to the 46 block long lateral migration. Finally in the sand traps of fault zones and the high position of the structure in the accumulation mode. The prediction of Songliao Basin in Chang 46 block of Fuyu oil reservoir into favorable target area a total of 4.

【学位授予单位】：东北石油大学
【学位级别】：硕士
【学位授予年份】：2016
【分类号】：P618.13

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