新疆石油地质

›› 2015, Vol. 36 ›› Issue (6): 1-1.doi: 10.7657/XJPG20150611

• 论文 •    

安达地区营城组火山岩构造裂缝特征及定量预测

郭 鹏1，姚磊华1，任德生2   

  1. (1.中国地质大学 工程技术学院,北京 100083;2. 北京油谷科技发展有限公司,北京 100085)
  • 出版日期:2019-01-01 发布日期:1905-07-16

Characteristics and Quantitative Prediction of Tectonic Fractures of Yingcheng Formation in Volcanic Reservoir of Anda Area in Songliao Basin

GUO Peng1, YAO Leihua1, REN Desheng2   

  1. (1. School of Engineering and Technology, China University of Geosciences, Beijing 100083, China; 2.Beijing Oil Valley Technology Development Corporation, Beijing 100085, China)
  • Online:2019-01-01 Published:1905-07-16

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摘要： 查明裂缝的发育程度和分布规律对于火山岩油气藏勘探至关重要。根据松辽盆地安达地区营城组火山岩露头、岩心和薄片等资料，对其储集层构造裂缝的基本特征、力学性质和有效性进行了统计分析。结果表明，营城组储集层主要发育近南北向、北北西—南南东向、北西—南东向和近东西向的共轭构造裂缝系统，岩心裂缝线密度主体为0.20~1.00条/cm，以张性裂缝为主，多为半充填的有效裂缝。以三维构造应力场模拟为基础，结合破裂法和能量法，建立了安达地区营城组构造裂缝分布定量预测模型，并应用该模型预测了构造裂缝发育的有利区，为下步火山岩油气勘探开发提供参考。

Abstract: The key of exploration of a volcanic reservoir is to make clear the development and distribution of fractures in it. This paper presents the statistical analysis of the basic feature, the mechanical property and the effectiveness of the tectonic fractures in the volcanic reservoir of the Yingcheng formation in Anda area in Songliao basin, based on the outcrop, core and thin?section data of the volcanic rocks in this area. The results show that the Yingcheng reservoir mainly develops in regional conjugate tectonic fracture system to near?SN,NNW-SSE, NW-SE and near?EW directions, with core fracture linear density of 0.20~1.00 ribbons per ceti meter. The most tectonic fractures are tensional and half?filled. By 3D tectonic stress field simulation, combined with rock burst method and energy method, a quantitative prediction model for tectonic fracture distribution of Yingcheng formation in Anda area is developed, by which the favorable areas with developed tectonic fractures are predicted, providing important reference for further exploration and development of the volcanic rock reservoirs in this area

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