中国石油勘探 ›› 2011, Vol. 16 ›› Issue (1): 75-79,10.

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中伊朗盆地Garmsar区块构造特征与油气远景展望

郇玉龙   

  • 出版日期:2011-02-15 发布日期:2011-02-15

Structural Characteristics and Oil & Gas Prospect of Garmsar Block, Central Iran Basin

Huan Yulong   

  • Online:2011-02-15 Published:2011-02-15

摘要: Garmsar区块位于伊朗伊斯兰共和国中伊朗盆地的中北部,是一个在挤压应力场背景下形成的新生代沉积凹陷。自古近纪以来,受Elburz造山带和Zagros褶皱带南北相向碰撞挤压作用的影响,盆地内部发生复杂的褶皱—冲断变形,造成区内地层褶皱隆起和断块掀斜,形成各种类型的局部构造圈闭。渐新世—中新世库姆组具有良好的生储盖配置条件,可形成自生自储的成藏组合,其内部受逆冲推覆活动影响而产生断弯褶皱或断展褶皱,可作为良好的油气圈闭,具有一定的油气勘探前景。

关键词: 中伊朗盆地, Garmsar区块, 库姆组, 构造圈闭, 勘探前景

Abstract: Located in north-central part of Central Iran Basin, Iran Islamic Republic, Garmsar block is a Cenozoic sedimentary depression formed in the background of compression stress field. Since the Tertiary Period, influenced by collision compression in opposite directions of Elburz orogenic zone and Zagro folded zone, complicated fold-thrust faulted deformation occurred in the basin, resulting in stratigraphic uplift folds and tilting fault blocks, and forming various types of local structural traps in Garmsar Block. Qum Formation has favorable configuration conditions of source, reservoir and cap rocks, and can form self-generating and self-accumulating plays. Fault-bend folds or fault-propagation folds resulting from thrusting activities within Qum Formation can be favorable oil & gas traps. Therefore, there is certain exploration prospect in Garmsar block

Key words: Central Iran Basin, Garmsar Block, Qum Formation, structural trap, exploration prospect

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