石油与天然气地质 ›› 2007, Vol. 28 ›› Issue (2): 198-202.doi: 10.11743/ogg20070210

• 研究方法探索 • 上一篇    下一篇

AVO技术在普光气田鲕滩储层预测中的应用

郭旭升, 凡睿   

  1. 中国石油化工股份有限公司, 南方勘探开发分公司, 云南, 昆明, 650200
  • 收稿日期:2007-02-11 出版日期:2007-04-25 发布日期:2012-01-16

Application of AVO techniques to reservoirs prediction of oolitic beach facies in Puguang gas field

Guo Xusheng, Fan Rui   

  1. Southern E & P Company, SINOPEC, Kunming, Yunnan 650200, China
  • Received:2007-02-11 Online:2007-04-25 Published:2012-01-16

摘要:

普光气田为长兴组一飞仙关组礁滩相白云岩储层为主的构造-岩性复合圈闭特大型气田,储层综合预测技术为气田勘探关键之一.基于叠前时间偏移资料进行AVO属性处理,较好地解决了AVO异常的归位问题,使AVO响应更清晰,提高了AVO资料的分析质量.在测井和地质资料综合分析的基础上,通过正演模拟,建立普光气田飞仙关组鲕滩储气层AVO异常的识别模式,开展AVO属性分析,取得了较好的应用效果,为在四川盆地川东北区油气勘探寻找到一条有效途径.

关键词: AVO, 交会图, 叠前时间偏移, 鲕滩储层, 普光气田, 四川盆地

Abstract:

For Puguang gas field,a giant structural-lithologic gas field with dolomite reservoirs of reef flat facies in Changxing-Feixianguan formations as the main zones of interest,the comprehensive reservoir prediction technology is considered one of the key solutions for gas exploration.Through AVO attribute processing of pre-stack time migration data,the problem of migration of AVO abnormality is well solved,the AVO responses are enhanced,and the quality of AVO data analysis is improved.Based on an integrated analysis of logging and geologic data,recognition patterns are established for the AVO abnormality of the Feixianguan Formation gas reservoirs of oolitic beach facies in Puguang gas field through forward modeling,and AVO attribute analysis is also performed.AVO techniques can be effectively applied to oil & gas exploration in northeastern Sichuan.

Key words: AVO, cross plot, prestack time migration,oolitic beach reservoirs, Puguang gas field, Sichuan basin

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