石油与天然气地质 ›› 2007, Vol. 28 ›› Issue (1): 116-120.doi: 10.11743/ogg20070117

• 勘探开发技术 • 上一篇    下一篇

应用频率衰减属性预测TNB地区储层含气性

毕研斌1,2, 龙胜祥1, 郭彤楼3, 鲍志东2, 刘彬1, 马殿仁1   

  1. 1. 中国石油化工股份有限公司, 石油勘探开发研究院, 北京, 100083;
    2. 中国石油大学, 北京, 102249
    3. 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, 650233
  • 收稿日期:2006-04-04 出版日期:2007-02-25 发布日期:2012-01-16
  • 基金项目:

    国家重点基础研究发展规划(973)项目(2005CB422107)

Prediction of gas distribution with frequency attenuation attribute in TNB area

Bi Yanbin1,2, Long Shengxiang1, Guo Tonglou3, Bao Zhidong2, Liu Bin1, Ma Dianren1   

  1. 1. Exploration & Production Research Institute, SINOPEC, Beijing 100083, China;
    2. China University of Petroleum, Beijing 102249, China;
    3. Southern E & P Company, SINOPEC, Kunming, Yunnan 650233, China
  • Received:2006-04-04 Online:2007-02-25 Published:2012-01-16

PDF (PC)

695

被引次数

64

摘要：

下三叠统嘉陵江组二段和飞仙关组三段是TNB地区钻井揭示的主要产气层段,具有埋藏深、厚度薄的特点。尽管目前勘探获得了重大突破,但有利含气性分布预测仍然是进一步扩大勘探成果的关键所在。基于小波变换的频谱分析技术为储层含气性预测提供了有效的手段。针对研究目的层的储层特征,通过衰减属性与地质录井全烃检测资料对比、储层正演模拟和井-震含气性过井剖面检验,分析了利用频率衰减属性预测储层含气性的可行性。预测结果表明,嘉陵江组二段和飞仙关组三段在平面上和纵向上均具有不同的含气分布特征。嘉陵江组二段砂屑滩气藏面积大,发育单一气藏;飞仙关组三段鲕粒滩气藏面积相对较小,但纵向上异位叠置、多气藏发育。

关键词: 全烃检测, 频率衰减梯度, 含气性预测, TNB构造

Abstract:

The 2nd member of the Lower Triassic Jialingjiang Formation and the 3rd member of the Lower Triassic Feixianguan Formation are the main gas-producing zones in TNB area,with the characteristics of deeper burial depth and thinner reservoir thickness.Although the major discoveries have been made in this area,the prediction of gas distribution remains the key factor for better exploration achievements.The spectral analysis based on wavelet transform,however,can be used effectively in gas distribution prediction.In connection with the reservoir characteristics of target area,the feasibility of gas distribution forecasting by frequency attenuation attribute is addressed by the comparison of gas logging data(total hydrocarbon detection) with frequency attenuation attribute,the reservoir forward modeling,and the interwell section examination of gas distribution.Their results indicate that different gas-bearing characteristics are exhibited horizontally and vertically in the 2nd member of Jialingjiang Formation and the 3rd member of Feixianguan Formation. The T1j2 gas reservoir(sand beach reservoir)is characterized by single gas reservoir with a larger pool area,while the T1j3 Formation(oolitic beach re-servoir) is the multiple and vertically superimposed gas reservoirs with a relatively smaller pool area.

Key words: total hydrocarbon detection, frequency attenuation gradient, gas distribution prediction, TNB Structure

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