石油学报 ›› 2005, Vol. 26 ›› Issue (4): 54-57.DOI: 10.7623/syxb200504011

• 地质勘探 • 上一篇    下一篇

偶极横波各向异性特征及其在地应力评价中的应用

赵军1, 秦伟强2, 张莉3, 邓宁3   

  1. 1. 西南石油学院石油工程学院 四川成都 610500;
    2. 中国石油大学资源与信息学院 北京 102249;
    3. 中国石油塔里木油田公司 新疆库尔勒 841000
  • 收稿日期:2004-08-19 修回日期:2005-02-17 出版日期:2005-07-25 发布日期:2010-05-21
  • 作者简介:赵军,男,1970年10月生,1998年获西南石油学院工学博士学位,高级工程师,主要从事岩石物理及地质、测井资料综合应用研究.E-mail:zhaojun70@sina.com
  • 基金资助:
    中国石油天然气集团公司“十五”科技攻关项目“塔里木盆地测井解释技术研究”推广应用课题“全波列测井解释处理系统推广应用”(No.2000070549)部分成果.

Anisotropy of dipole shear wave and its application to ground stress evaluation

ZHAO Jun1, QIN Wei-qiang2, ZHANG Li3, DENG Ning3   

  1. 1. College of Petroleum Engineering, Southwest Petroleum Institute, Chengdu 610500, China;
    2. Faculty of Resources and Information Technology, China University of Petroleum, Beijing 102249, China;
    3. PetroChina Tarim Oilfield Company, Kuerle 841000, China
  • Received:2004-08-19 Revised:2005-02-17 Online:2005-07-25 Published:2010-05-21

摘要: 钻井过程中井眼跨塌、水力压裂裂缝的形成与应力场的分布有十分密切的关系.从不对称应力所造成的裂缝、断裂等地层各向异性属性出发,根据横波在各向异性地层中传播时所导致的分裂现象,利用偶极横波成像测井(DSI)资料所提取的快、慢横波信息来指示地层的各向异性特性及其方向.利用现今地应力方向与有效裂缝展布方向关系,对研究区现今最大主应力的方向进行了分析和讨论,该研究结果为钻井施工的顺利进行和储层改造措施的实施提供了依据.

关键词: 成像测井, 偶极横波, 地层各向异性, 应力场, 井眼, 裂缝展布

Abstract: The borehole falling and hydraulic fracture during drilling have a close relation with the distribution of stress field.According to the divided feature of fast and slow shear waves traveling in the anisotropic formation,the anisotropic properties of formation and ground stress direction were indicated by the fast and slow wave information drawn from DSI data.The distribution direction of the greatest principal stress was elementarily analyzed and discussed on the basis of relationship between direction of the current greatest principal stress and distribution direction of the effective fractures in the studied area.The studied result can provide a basis for successively ensuring drilling operation and acid-fracturing treatment.

Key words: image logging, dipole shear wave, formation anisotropy, stress field, borehole, fracture distribution

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