孤岛油田西南缘馆下段断层封闭性与油气成藏  

FAULT SEALING ABILITY AND HYDROCARBON ACCUMULATION OF THE LOWER MEMBER OF GUANTAO FORMATION IN SOUTHWEST GUDAO OILFIELD

作　　者：王蛟[1,2] 束青林[2] 

机构地区：[1]中国石化胜利油田博士后科研工作站,山东东营257015 [2]中国石化胜利油田孤岛采油厂,山东东营257231

出　　处：《西南石油大学学报（自然科学版）》2010年第5期47-53,共7页Journal of Southwest Petroleum University(Science & Technology Edition)

基　　金：国家重点基础研究发展规划"973"项目(2003CB214608);国家自然科学基金项目(40672078)

摘　　要：油源分析表明,孤岛油田西南缘Ng下油藏原油主要来自渤南洼陷Es3烃源岩,油气藏类型以构造油气藏为主。断层封闭性是研究区Ng下油藏成藏的主控因素,对研究区主要断层封闭性研究结果表明:Ng7下、Ng8下断层封闭性较好,利于形成油气藏;Ng8下以下断层封闭性较差,可作为油气运移的通道。研究区Ng下油气成藏模式可概括为渤南油源型断阶输导-断层封堵成藏模式,断块油气藏和与断层伴生的逆牵引微背斜构造油气藏是该区Ng下油气藏勘探的重要方向,该成藏模式应用效果良好,展示了孤岛油田西南缘地区Ng下油气藏较好的勘探开发前景。The analysis of oil sources shows that the crude oil of the lower members of Guantao Formation in southwest Gudao Oilfield are mainly from the source rock of Sha-3 member in Gunan sag.The pool types of oil reservior are mainly structure reservior.The main controlling factor of the formation of southwest Gudao Oilfield reservoir is the fault sealing ability.The study on fault sealing ability indicates that the fault sealing of Lower-member 7-8 Guantao Formation is good and is favorable for the formation of reservoirs.While the fault sealing of Lower-member 9-11 Guantao Formation is bad and can be used as the transportation passage of oil and gas.The oil-forming model of the studied area can be summed as Bonan fault terrace transportation and,fault-sealing pool-forming models.Fault block reservoirs and antithetic dragged anticline structure reservoir will be the next important exploration direction.The development effect of this model is very good,and the good development prospect of Guantao Formation in southwest Gudao Oilfield is demonstrated.

关 键 词：孤岛油田 馆陶组 油源对比 断层封闭性 成藏模式 

分 类 号：TE122[石油与天然气工程—油气勘探]