石油与天然气地质 ›› 2009, Vol. 30 ›› Issue (2): 136-142.doi: 10.11743/ogg20090202

• 西部油气勘探 • 上一篇    下一篇

库车坳陷东部古近系—白垩系储层控制因素及有利勘探区

沈扬1, 马玉杰2, 赵力彬2, 张荣虎1, 寿建峰1, 张惠良1   

  1. 1. 中国石油天然气股份有限公司 杭州地质研究院,浙江 杭州 310023;
    2. 中国石油天然气股份有限公司 塔里木油田分公司,新疆 库尔勒 841000
  • 收稿日期:2009-02-25 出版日期:2009-04-25 发布日期:2012-01-16
  • 基金项目:

    国家基础研究发展计划(973)项目(2006CB202304)

Controlling factors of the Paleogene-Cretaceous reservoirs and potential exploration areas in the eastern Kuqa Depression

Shen Yang1, Ma Yujie2, Zhao Libin2, Zhang Ronghu1, Shou Jianfeng1, Zhang Huiliang1   

  1. 1. PetroChina Hangzhou Institute of Geology, Hangzhou, Zhejiang 841000, China;
    2. PetroChina Tarim Oilfield Company, Tarim, Xinjiang 841000, China
  • Received:2009-02-25 Online:2009-04-25 Published:2012-01-16

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摘要：

库车坳陷东部山前复杂构造区储层受沉积相、成岩作用、埋深及构造应力等多种因素控制,有效储层分布预测难度大。通过综合研究,首次建立起库车东部白垩系对比关系,明确白垩系巴什基奇克组在库车东部广泛分布,受沉积微相及物源分布影响,储层物性具有从东到西、从北到南变好的趋势。刚性颗粒含量较高的储层预测有效埋深可以大于7000m。古构造应力对储层的构造压实作用从造山带向盆地减弱。结合多种控制因素预测了有利储层勘探区。

关键词: 储层控制因素, 有利勘探区, 古近系, 白垩系, 库车坳陷东部, 塔里木盆地

Abstract:

The reservoirs in the complicated piedmont structural zones of the eastern Kuqa Depression are controlled by such factors as precipitation facies,digenesis,burial depth,and tectonic stress,causing difficulties in reservoir distribution prediction.The Cretaceous in the eastern Kuqa Depression was correlated for the very first time.The Cretaceous Bashijiqike Formation is widely distributed in the eastern Kuqa,and the reservoir properties show a tendency of getting better from east to west and from north to south because of the influence of sedimentary microfacies and source distribution.The predicted valid burial depth for reservoirs with high content of rigid grains may be more than 7000m.The compaction of reservoir by the palaeotectonic stress weakens from the orogenic zone to the basin.Potential exploration areas were finally predicted through integrating various controlling factors.

Key words: reservoir controlling factor, Paleogene, Cretaceous, eastern Kuqa Depression, Tarim Basin

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