水下分流河道建筑结构模式的建立及对剩余油的控制作用  

Establishment of underwater distributary channel structure model and control of remaining oil

作　　者：张善义[1] 兰金玉[2] 

机构地区：[1]中国石油大庆油田第五采油厂,黑龙江大庆163513 [2]东北石油大学石油工程学院,黑龙江大庆163318

出　　处：《油气藏评价与开发》2013年第5期9-12,共4页Petroleum Reservoir Evaluation and Development

摘　　要：在油田开发进入高含水后期,水下分流河道内部夹层及其建筑结构对注入剂驱油及剩余油形成的影响作用越来越大。为了更好地挖潜水下分流河道内部的剩余油,以水下分流河道建筑结构模式的建立为基本出发点,以现代沉积模式和古代野外露头为指导,结合研究区岩心、测井曲线等资料,提出了一整套河控三角洲内前缘水下分流河道内部建筑结构的研究方法。通过对界面级次的划分及识别、夹层倾角、个数、厚度、分布位置和夹层间结构体规模等研究,建立了水下分流河道内部建筑结构模式,即水下分流河道内部夹层呈平行状,且中部夹层较密。通过水下分流河道建筑结构的建立,为更好地寻找剩余油的分布提供了一种新的思路和方法。When oil field development gets into the later high water cut period, underwater distributary channel and its structures influence more on displacement by injectant and remaining oil formation. In order to better tap potential of the remaining oil in un-derwater distributary channels, based on the establishment of underwater distributary channel structure model, taking modern depo-sitional model and ancient field outcrop as a guide, and combined with the core and logging curve data in the study area, a set of re-search methods of river dominated delta inner front underwater distributary channel internal structure is proposed. By researches of division and distinguish of interface levels, interbed dip, number, thickness, location and structure scale between interbeds, under-water distributary channel internal structure is established, that is the inner interbeds of underwater distributary channel parallel with each other, and the middle interbeds are tight. The establishment of underwater distributary channel structure provides new idea and method for finding remaining oil distribution better.

关 键 词：水下分流河道 夹层 建筑结构 剩余油 

分 类 号：TE323[石油与天然气工程—油气田开发工程]