摘要
松辽盆地北部江桥地区J93井区构造上为东倾斜坡,划分为西部斜坡带和东部鼻状构造带。东部鼻状构造带发育三个北东向鼻状构造,目前已发现油气主要聚集在此。研究区上白垩统萨尔图油层三角洲前缘的分流河道砂体发育,河道砂岩储层与微幅度构造圈闭合理配置,均获得了高产油气流,这种配置类型为第一层次井位部署。目前区域内构造圈闭落实程度高,第一层次构造圈闭基本都进行了钻探,为了寻找有利井位目标,结合研究区的构造特征、河道砂体展布特点,探索另外三种河道砂体成藏类型:河道砂体和鼻状构造背景合理配置、河道砂体和断层合理配置、河道砂体上倾尖灭,作为第二层次井位部署,为进一步勘探开发的优选有利目标提供科学依据和决策。
The research area is an east-easterly slope in the structure of J93 well block,which is divided into the western slope zone and the eastern nose-like structural belt. In the eastern nose-shaped structure,three north-east nose structures are developed,where the oil and gas have been found. The main target reservoir in the study area is the Saertu Formation,where the distributary channel sandbodies in the delta front are developed,the channel sandstone reservoirs and micro-amplitude structural traps are allocated reasonably,and both have obtained high yield oil and gas. This type of allocation can be deployed as a first-level well location. At present,there are basically well drilled in structural traps with a high degree of structural trap in the area. In order to find more beneficial well targets,combined with the structural characteristics of the study area,this paper explores the types of reservoir formation in the other three types of channel sand bodies:the rational allocation of channel sand body and nose structure,the rational allocation of channel sand bodies and faults,and the upward and downward overturning of channel sand bodies. This can be deployed as the second-level well location,providing scientific basis and decision-making for the further exploration and development and optimization of favorable targets.
作者
柯钦
于志龙
刘剑伦
朱绪峰
郭继茹
杨淑华
张梦林
崔雪
KE Qin;YU Zhilong;LIU Jianlun;ZHU Xufeng;GUO Jiru;YANG Shuhua;ZHANG Menglin;CUI Xue(Geological Research Center,BGP Inc.,CNPC,Zhuozhou 072750,China)
出处
《复杂油气藏》
2019年第3期16-22,共7页
Complex Hydrocarbon Reservoirs
关键词
河道砂体
成藏模式
鼻状构造
萨尔图油层组
松辽盆地
channel sandbody
accumulation model
nose structure
Saertu Formation
Songliao Basin
