贝尔凹陷南二段油成藏的地质条件  

Favorable geological conditions of oil accumulation in K_1n_2 in Beier depression

作　　者：赵刚 张群[2] 王兴亚 黄鹤[4] 

机构地区：[1]大庆石油有限责任公司第六采油厂,黑龙江大庆163114 [2]大庆石油管理局电力集团油田热电厂,黑龙江大庆163314 [3]大庆榆树林油田开发有限责任公司,黑龙江大庆151100 [4]辽河油田分公司勘探开发经济评价中心,辽宁盘锦124010

出　　处：《大庆石油学院学报》2009年第4期9-12,共4页Journal of Daqing Petroleum Institute

基　　金：国家"973"重大基础研究项目(2001CB209104);高等学校博士学科点专项科研基金(20060220002)

摘　　要：为了研究贝尔凹陷南二段油成藏的有利条件,利用油藏与成藏主控因素叠合分析方法,对控制其油成藏与分布的主要因素进行了研究.结果表明:南屯组源岩生烃能力强,可为南二段储层中油聚集提供充足的油源;T23至T1断裂为南屯组源岩生成油向南二段储层中运移提供了良好的输导通道;大一段泥岩盖层为南二段储层中油聚集与保存提供了有利的盖层条件;边界断裂控制形成的断层圈闭为南二段储层中油的聚集成藏提供了有效圈闭.According to oil reservoir anatomy studies,it was considered that the enrichment of oil in K1n2 in Beier depression was due to the following 4 favorable geological conditions: K1n source rocks had strong ability of hydrocarbon generation,which could provide sufficient oil source for oil accumulation in K1n2 reservoir;T23-T1 faults offered favorable transporting pathways for oil from K1n source rocks migrating to K1n2 reservoir;K1d1 mudstone cap rocks provided cap rock condition for accumulation and preservation of oil in K1n2 reservoir;lastly the traps formed by control of boundary faults were effective traps for oil accumulation in K1n2 reservoir.

关 键 词：贝尔凹陷 南二段 油成藏 地质条件 南屯组源岩 断裂 大一段盖层 

分 类 号：TE122.3[石油与天然气工程—油气勘探]