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现代地质 ›› 2007, Vol. 21 ›› Issue (1): 14-21.

• 构造地质学 • 上一篇    下一篇

根据FMI资料分析大庆油田徐家围子断陷构造应力场

雷茂盛1,2,王玉华2,3,赵杰2   

  1. 1中国地质大学 地球科学与资源学院,北京100083;2大庆油田有限责任公司 勘探分公司,黑龙江 大庆163453;
    3中国科学院 贵阳地球化学研究所,贵州 贵阳550002
  • 收稿日期:2005-07-20 修回日期:2006-10-20 出版日期:2007-01-20 发布日期:2007-01-20
  • 作者简介:雷茂盛,男,博士研究生,1968年出生,构造地质学专业,主要从事石油地质研究工作。 Email:leims_2003@sina.com。

Analysis on Tectonic Stress Field of Xujiaweizi Rift in Daqing Oilfield with FMI

LEI Mao-sheng1,2,WANG Yu-hua2,3,ZHAO Jie2   

  1. 1School of the Earth Sciences and Resources, China University of Geosciences, Beijing100083,China;
    2Exploration Branch of PetroChina,Daqing Oilfield Co.Ltd.,Daqing,Heilongjiang163453,China;
    3Guiyang Institute of Geochemistry,Chinese Academy of Sciences,Guiyang,Guizhou550002,China
  • Received:2005-07-20 Revised:2006-10-20 Online:2007-01-20 Published:2007-01-20

摘要:

现今构造应力场及古构造应力场最大主应力方向的准确判断对成矿地质研究,尤其是石油、天然气勘探和开发具有重要的意义。利用FMI(全井壁微电阻率成像测井)资料,以大庆油田徐家围子断陷下白垩统营城组为研究对象,对该断陷的构造应力方向进行分析。对FMI资料识别出的裂缝走向进行统计,结果表明:钻井伴生缝受现今应力场控制,构造成因的高导缝和高阻缝的形成则受古地应力控制,可指示古地应力场的方向;徐家围子断陷下白垩统营城组现今最大水平主应力方向为近东西向;在地质演化中,研究区域的构造应力场曾经发生多次变化,根据发育的裂缝组判断留下明显迹象的有3个方向,即近南北向、北东向和近东西向。

关键词: FMI, 裂缝, 构造应力场, 徐家围子断陷

Abstract:

The directions of maximum horizontal stresses of the present tectonic stress field and palaeostress field are of great significance to mineralization analysis, especially to the exploration and development of oil and gas. Fractures induced by drilling are controlled by present stress field, while the highconductive and highresistant fractures caused by tectonic genesis are closely related to palaeostress and can be the indications of the directions of palaeostress fields. After the statistics analyses of fractures identified from FMI images in groups, it is drawn to the conclusion that the current direction of the maximum horizontal major stress of the Lower Cretaceous Yingcheng Formation in Xujiaweizi Rift, Daqing Oilfield is identified to be nearly eastwest, and has changed frequently in the geological history, with obvious three directions of NS, NE and WE.

Key words: FMI, fracture, tectonic stress field, Xujiaweizi Rift

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