新疆石油地质

新疆石油地质 ›› 1996, Vol. 17 ›› Issue (4): 318-321.

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塔里木盆地多期不整合面的控油前景

陈子元   

  1. 地质矿产部石油地质综合大队 湖北江陵 434100
  • 收稿日期:1996-04-20 出版日期:1996-12-01 发布日期:2020-07-24
  • 作者简介:工程师 石油地质
  • 基金资助:
    国家“八五”科技攻关项目

PROSPECT FOR CONTROLLING HYDROCARBON BY MULTISTAGE UNCONFORMITIES IN TARIM BASIN

Chen Ziyuan   

  1. Unified Team of Petroleum Geology, MGMR, Jianglin, Hubei 434100
  • Received:1996-04-20 Online:1996-12-01 Published:2020-07-24
  • About author:Chen Ziyuan, Engineer, Petroleum Geology

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摘要： 塔里木盆地断裂及局部构造不发育,反映了盆地的稳定性与持续沉降的特点,这对生油岩的保存有利,但对油气的输导与聚集则不利。为扩大油气勘探成果,还应重视不整合面对油气的输导与控制作用。在主要的5期不整合面中,削截不整合、多期不整合叠合带及多期地层尖灭密集带、前陆盆地中因沉积作用引起的迁移渐进不整合带,是油气聚集前景的有利区带。

关键词: 塔里木盆地, 不整合面, 控制, 油气分布

Abstract: Undeveloped faulting and local structures in Tarim basin suggest that it has stability and substained subsiding features, which are favourable for source rock preservation rather than hydrocarbon migration and accumulation in the basin, we should devote more attention to the transporting and controlling effects of unconformities on hydrocaitx)n to find out additional petroliferous provinces. Among the main five-stage unconformities, these zones, such as tnmcated zone, multistage unconformity stacked zone, multistage pinch-out concentrated zone and nwvable pnc^ressive unconformable zone that resulted from sedimentation of the foreland basin, are all favourable plays for hydrocaAon accumulation.

Key words: Tarim basin, Unconformity, Control, Oil and gas distribution