石油学报 ›› 2010, Vol. 31 ›› Issue (3): 355-360.DOI: 10.7623/syxb201003002

• 地质勘探 • 上一篇    下一篇

黄骅坳陷中区大型斜向变换带及其油气勘探意义

王家豪 1,2  王  华 1  任建业 1  肖敦清 3  蒲秀刚 3   

  1. 1中国地质大学资源学院  湖北武汉  430074; 2中国地质大学构造与油气资源教育部重点实验室  湖北武汉  430074; 3中国石油大港油田公司勘探开发研究院  天津  300280
  • 收稿日期:2009-09-19 修回日期:2010-01-18 出版日期:2010-05-25 发布日期:2010-07-28
  • 通讯作者: 王家豪
  • 作者简介:王家豪,男,1968年10月生,1990年毕业于中国地质大学(武汉),现为中国地质大学副教授,主要从事沉积学、层序地层学教学和科研工作。
  • 基金资助:

    国家自然科学基金项目(No.40872077)资助。

A great oblique transition zone in the central Huanghua Depression and its significance for petroleum exploration

WANG Jiahao 1,2  WANG Hua 1  REN Jianye 1  XIAO Dunqing 3  PU Xiugang 3   

  • Received:2009-09-19 Revised:2010-01-18 Online:2010-05-25 Published:2010-07-28

摘要:

依据断层产状、断裂组合和盆地构造样式分析结果,在黄骅坳陷中区识别了一个大型斜向变换带。该变换带主要发育于古近纪,沿走向表现为不同幅度的同沉积背斜,延伸距离达70km。变换带由两组倾向相反的正断层叠覆形成,其东西两侧分属两个伸展构造体系。以西呈半地堑构造样式,以东则呈地堑构造样式。变换带的位置与黄骅—聊城—兰考大型走滑断裂带北延段一致,并发育有典型的花状构造,表明基底结构的差异以及深部走滑断裂长期活动是其产生的内在原因。斜向变换带古近系储集砂体丰富,并发育有上超尖灭和断背斜两种有利圈闭类型,是研究区一个重要的油气聚集带。

关键词: 黄骅坳陷, 古近纪, 斜向变换带, 走滑断裂带, 伸展构造体系, 圈闭类型, 油气聚集带

Abstract:

The fault occurrence, fracture combination and structural patterns of basins were analyzed, and a great oblique transition zone was identified in the central Huanghua Depression. The transition zone was mainly developed in the Paleogene and showed a range of syndepositional anticline with various amplitudes which stretched a distance over 70 km along its strike. The transition zone was constructed by two groups of overlapped antithetic faults. Two extensional structure systems were developed respectively at two lateral sides of the transition zone. The western system presented half-graben style, and the eastern one presented graben style. The transition zone location was accordant to the northern segment of the large-scale strike-slip Huanghua-Liaocheng-Lankao fault belt and developed the rosette structures, which manifested that the transition zone was essentially resulted from differential basal structures and long-termed, deep-seated strike-slip movement. The transition zone was characterized by abundant sandbody reservoirs and two favorable traps of faulted anticline and onlap pinching out in the Paleogene. It is verified that the transition zone is an important hydrocarbon accumulation belt.

Key words: Huanghua Depression, Paleogene, oblique transition zone, strike-slip fault, extensional structure system, trap pattern, hydrocarbon accumulation belt