新疆石油地质

新疆石油地质 ›› 2004, Vol. 25 ›› Issue (1): 134-136.

• 油气勘探 • 上一篇    下一篇

车古20潜山主要断层垂向封闭性评价

付广, 付晓飞, 孟庆芬   

  1. 大庆石油学院,黑龙江大庆163318
  • 收稿日期:2003-04-11 出版日期:2004-02-01 发布日期:2020-08-14
  • 作者简介:付广(1962-),男,辽宁新宾人， 教授，石油地质。联系电话:0459-6504024
  • 基金资助:
    黑龙江省骨干教师研究项目,断层封闭性定量预测方法研究(编号2002-7)

Evaluation on Vertical Sealing Nature of Main Faults in Chegu-20 Burried Hill

FU Guang, FU Xiao-fei, MENG Qing-fen   

  1. Daqing Petroleum Institute, Daqing, Heilongjiang 163318, China
  • Received:2003-04-11 Online:2004-02-01 Published:2020-08-14

摘要： 在车古20潜山断层发育及演化特征研究的基础上，通过断层垂向封闭机理及影响因素分析指出断层面压力和断裂带泥质含量是影响断层垂向封闭性的主要因素利用抗压模拟实验结果确定出泥岩塑性变形极限，利用断移地层岩性及断距建立了一套预测断裂带砂泥含量的方法在此基础上，对车古20潜山主要断层在c- p- Es4 垂向封闭性进行了评价。除断层F2 Fe和F，在298测线及车古203-车古20- 车古201井-线不具垂向封闭性外，其余断层在c-p- Es+皆具垂向封闭性,这是该区油气聚集与保存的重要条件.

关键词: 古潜山, 断层, 封闭性, 压力, 塑性, 变形

Abstract: The faults development and evolution features in Chegu-20 burried hill as well as their vertical sealing mechanisms andaffected factors are analyzed. The main factors controlling vertical sealing faults are the pressure exerted on fault plane and theshale content. From the modeling result of compressive experiment,the plastically deformed limitation of mudstone is presented,and the method for prediction of sandy and shale contents in fault zone is established by its lithology and fault throw.Based onthese, the vertical sealing nature of Chegu-20 burried hill in Carboniferous-Permian to Paleogene are evaluated. It is pointed outthat the faults are all characterized by vertical sealing nature in C-P to Es* except for faults F3, F42 and F? in Line-298 and a-long Chegu-203-Chegu-20-Chegu-201. They show that this area possesses significant conditions for hydrocarbon accumulation andpreservation.

Key words: buried hill, fault, sealing, pressure, plasticity, deformation

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