西南石油大学学报(自然科学版) ›› 2010, Vol. 32 ›› Issue (4): 26-32.DOI: 10.3863/j.issn.1674-5086.2010.04.006

• 地质勘探 • 上一篇    下一篇

渤中凹陷油气运移优势通道及有利区预测

王 明1，2 姜福杰3，4 庞雄奇3，4
  

  1. (1.中国石油化工股份有限公司石油勘探开发研究院，北京 海淀 100083； 2.中国地质大学(北京)能源学院,北京 海淀 100083；3.中国石油大学盆地与油藏研究中心，北京 昌平 102249； 4.中国石油大学油气资源与探测国家重点实验室，北京 昌平 102249)
  • 收稿日期:1900-01-01 修回日期:1900-01-01 出版日期:2010-08-20 发布日期:2010-08-20

PREDICTION OF DOMINANT MIGRATION PATHWAYS AND FAVORABLE EXPLORATION ZONES IN BOZHONG DEPRESSION

WANG Ming1,2 JIANG Fu-jie3,4 PANG Xiong-qi3,4
  

  1. (1.Petroleum Exploration and Production Research Institute,CNPC,Haidian Beijing 100083,China;2.School of Energy Resources,China University of Geosciences(Beijing),Haidian Beijing 100083,China；3.Basin and Reservoir Research Center of China University of Petroleum,Changping Beijing 102249,China;4.State Key Laboratory of Petroleum Resource and Prospecting,Changping Beijing 102249,China)
  • Received:1900-01-01 Revised:1900-01-01 Online:2010-08-20 Published:2010-08-20

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摘要： 渤中凹陷油气分布规律不清，制约着勘探方向的选择，亟待开展与油气分布密切相关的优势通道的研究。根据级差优势、分隔优势、流压优势和流向优势4种优势通道的基本模式，采用单因素叠加和多信息叠合两种方法，对渤中凹陷油气运移优势通道进行了系统分析，确定出分别自凹陷中心向渤南低凸起、石臼坨凸起、沙垒田凸起和渤东低凸起北侧的4个优势通道方向。结合烃源岩展布及油气藏特征，总结出两种有利的油气运聚成藏模式，分别为沙河街组自生自储和优势通道输导-盖层完整的圈闭聚集成藏模式。综合分析认为，渤南低凸起、石臼坨凸起和沙垒田凸起多种优势通道共存，且储集砂体发育，圈闭类型多样，将是有利的勘探区带，区带内盖层完整的圈闭为有利的勘探目标。

关键词: 优势通道, 优势方向, 成藏模式, 渤中凹陷, 二次运移

Abstract:

Oil and gas distribution is not clear in Bozhong Depression.This restricts the choice of exploration direction.So the dominant migration pathway researches which are closely related to oil and gas distribution are to be carried out urgently.According to the four basic dominant migration patterns:the separation advantage,level difference advantage,flowing pressure advantage and flowing direction advantage,the dominant pathway of hydrocarbon migration of Baozhong Depression is analyzed systematically by using single element coupling analysis method and multi element superposition analysis method.As a result,four dominant pathway directions are summarized:from the center of depression to Bonan Low Uplift,Shijiutuo Uplift,Shaleitian Uplift and North of Bodong Low Uplift.Compared with the distribution of source rocks and reservoir characteristics,two kinds of favorable hydrocarbon migration accumulation reservoir models are summarized.They are respectively self generation and selfpreservation in Shahejie Formation and dominant pathway cap rock traps.Many kinds of dominant pathways are believed to coexist among Bonan Low Uplift,Shijiutuo Uplift and Shaleitian Uplift according to the comprehensive analysis.Besides,sand bodies are well developed,and there are also various types of traps,making them favorable exploration zones.Traps with complete cap rocks in those zones are favorable exploration targets.

Key words: dominant pathway, dominant direction, accumulation model, Bozhong Depression, secondary migration

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