新疆石油地质 ›› 2006, Vol. 27 ›› Issue (3): 308-310.

• 油气勘探 • 上一篇    下一篇

利用纵、横波品质因子比值识别含气碳酸盐岩层

信毅, 刘瑞林, 张晓明   

  1. 长江大学 地球物理与石油资源学院, 湖北 荆州 434023
  • 收稿日期:2005-09-07 修回日期:2005-11-04 出版日期:2006-06-01 发布日期:2020-10-19
  • 作者简介:信毅(1980-), 男, 湖北枣阳人, 在读硕士研究生, 地球探测与信息技术,(Tel) 0996-2171433(E-mail) xinycn@163.com.

Distinguishing the Gas-Contained Carbonate Rocks by P-S Wave Quality Factor Ratio

XIN Yi, LIU Rui-lin, ZHANG Xiao-ming   

  1. Institute of Geophysics and Oil Resources, Yangtze River University, Jingzhou, Hubei, 434023, China
  • Received:2005-09-07 Revised:2005-11-04 Online:2006-06-01 Published:2020-10-19

摘要: 利用偶极横波声波成像(Dipole Shear Sonic Imager, DSI)测井资料计算了纵、横波衰减和纵、横波品质因子QP和QS.对纵、横波在碳酸盐岩含气层和非含气层中的衰减特征研究表明,碳酸盐岩含气层中的纵波衰减比非含气层中的纵波衰减强;横波衰减和横波品质因子在碳酸盐岩含气层和非含气层中的变化不大。根据DSI测井资料计算出的纵、横波衰减和纵、横波品质因子在碳酸盐岩含气层和非含气层中的这些差异,给出了一种利用纵、横波品质因子比值QP/QS识别碳酸盐岩含气层的方法。

关键词: 偶极, 纵波, 横波, 因子, 衰减

Abstract: Compressional (P)-and shear (S)-wave attenuation and quality factors (Qp and Qs) were calculated by using the dipole shear sonic imager (DSI) log data. The studies of the features of the P-S wave attenuation in the carbonate formation containing gas and noncontaining gas show that P-wave attenuation in the carbonate formation containing gas is higher than non-containing gas. However, S-wave attenuation and quality factor do not show such a strong dependence. According to the features, this paper presents a method to distinguish the carbonate formation containing gas and non-containing gas by P-S wave quality factor ratio of Qp/Qs.

Key words: dipole, compressional-wave, shear-wave, quality factors, attenuation

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