新疆石油地质

新疆石油地质 ›› 2005, Vol. 26 ›› Issue (3): 278-279.

• 油气勘探 • 上一篇    下一篇

准噶尔盆地腹部白垩系底界划分

徐常胜, 王斌, 杨梦云, 陈永军, 吴海生   

  1. 中国石油 新疆油田分公司 勘探开发研究院 新疆 克拉玛依 834000
  • 收稿日期:2004-08-20 出版日期:2005-06-01 发布日期:2020-11-23
  • 作者简介:徐常胜(1971-),男,山东昌邑人,高级工程师,硕士,石油地质,(Tel)0990-6882104-805

Classification of Cretaceous Bottom Boundary in Hinterland of Junggar Basin

XU Chang-sheng, WANG Bin, YANG Meng-yun, CHEN Yong-jun, WU Hai-sheng   

  1. Rescarch Institute of Exploration and Development, Xinjing Oilfield Company, Petrochina, Karamay, Xinjiang 834000, China
  • Received:2004-08-20 Online:2005-06-01 Published:2020-11-23

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摘要： 准噶尔盆地腹部白垩系与侏罗系界限存在着不同的划分方案,这给综合研究造成了混乱。白垩系与侏罗系的界线对应于燕山构造运动第Ⅱ幕产生的不整合面，在其这一不整合面上下发育众多地层-岩性圈闭,因此,白垩系底界的划分将直接影响地层-岩性圈闭的识别。基于生物群组合特征、岩性组合特征、地质模型、正演模型、地震反射等多方面资料进行不同方案的对比和论证,确定了合理的分层方案。

关键词: 准噶尔盆地, 白垩系, 底界划分, 不整合

Abstract: There are several opinions on boundary dlassification between Cretaceous and Jurassice in hinterland of Junggar basin, which have caused the confusion in the stratigraphic correlation and the integrated exploration researches. The unconformity surface between the Cretaceous and the Jurassic is resulted from the second episode of Yanshan tectonic movement. There could be many litho-stratigraphic traps between them, so proper stratigraphie classification has infuenced the recognition of litho-stratigraphic traps directly. This paper presents the correlation and demonstration of several opinions on the boundary classfication based on much information about the character of biological combination, the character of lithology combination, the goologic model, the forward model, the seismic feature, etc, has established the rational program for the stratigraphie classification.

Key words: Junggar basin, Cretaceous, boundary classification, unconformity

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