新疆石油地质

新疆石油地质 ›› 2009, Vol. 30 ›› Issue (3): 387-389.

• 应用技术 • 上一篇    下一篇

叠前反演及AVO技术在苏里格气田的应用

赵万金1, 李海亮1, 史松群2, 张盟勃2   

  1. 1.中国石油 勘探开发研究院 西北分院,兰州730020;
    2.中国石油 长庆油田分公司 勘探开发研究院,西安710021
  • 收稿日期:2008-06-11 修回日期:2008-08-27 出版日期:2009-06-01 发布日期:2020-10-29
  • 作者简介:赵万金(1980-),男,甘肃民勤人,硕士.地球物理勘探.(Tel)13772453621(E-mail)zhao_wij@petrochna.com.cn.

Application of Prestack Inversion and AVO to Sulige Gas Field

ZHAO Wan-jin1, LI Hai-liang1, SHI Song-qun2, ZHANG Meng-bo2   

  1. 1. Northwest Branch, Research Institute of Petroleum Exploration and Development, PetroChina, Lanzhou, Gansu 730020, China;
    2. Research Institute of Exploration and Development, Changqing Oilfield Company, PetroChina, Xi an, Shaanxi 710021, China
  • Received:2008-06-11 Revised:2008-08-27 Online:2009-06-01 Published:2020-10-29

PDF

145

摘要： 苏里格盒8段砂体横向变化快、非均质性强,研究表明,该区盒8段含气砂体一般表现为第三类AVO现象,叠前参数反演得到的泊松比对该区含气砂岩敏感,叠前反演结果中不同角度弹性阻抗交会、横波阻抗以及泊松比的结合使用可以在该区有效地反映岩性及流体特征。通过聚类分析等技术形成这些属性及反演所得弹性参数的平面展布图,直观反映了有效储集层的横向变化特征,为井位部署提供了依据。

关键词: 苏里格气田, 叠前分析, 反演, 波阻抗, 泊松比.

Abstract: The lateral distribution of the sand body of He-8 segment in Sulige gas field varies quickly, with serious heterogeneity. The use of prestack A VO and inversion technology obtains certain success in this area. The experiment and practice show that the gas-bearing sand body of He-8 segment usually assumes the third type of A VO phenomenon, the Poisson's ratio from prestack parameter inversion is sensitive to the gas-bearing sand body, and the combination use of the intersection of different perspective elastic impedances, S-wave impedance and Poisson's ratio in the prestack inversion can effectively reflect the lithology and fluid characteristics in this area. The lateral distribution pattem of these attributes and elastic parameters is given by cluster analysis, providing the plan consultation basis for well location arrangement in exploration and development.

Key words: Sulige gas field, prestack analysis, inversion, wave impedance, Poisson's ratio

中图分类号: