石油学报 ›› 2009, Vol. 30 ›› Issue (2): 219-224.DOI: 10.7623/syxb200902010

• 地质勘探 • 上一篇    下一篇

川东北黄龙场气田飞仙关组台缘滩型碳酸盐岩储层预测

刘宏1, 谭秀成1, 周彦1, 陈景山1, 罗冰1, 童名胜2, 雷程3, 曾令平3   

  1. 1. 西南石油大学资源与环境学院, 四川成都, 610500;
    2. 川庆钻探公司地质勘探开发研究院, 四川成都, 610051;
    3. 中国石油西南油气田分公司川东北气矿, 四川达州, 635000
  • 收稿日期:2008-06-02 修回日期:2008-09-23 出版日期:2009-03-25 发布日期:2010-05-21
  • 作者简介:刘宏,男,1981年10月生,2008年获西南石油大学矿产普查与勘探专业博士学位,现为西南石油大学资源与环境学院讲师,主要从事油气藏描述的教学与科研工作.E-mail:nd123@163.com
  • 基金资助:

    中国石油中青年创新基金(06E1018)“碳酸盐岩同生岩溶型储层发育规律及预测模型研究”部分成果

Prediction of platform-edge bank carbonate reservoir in Feixianguan Formation of Huanglongchang Gas Field in the northeastern Sichuan Basin

LIU Hong1, TAN Xiucheng1, ZHOU Yan1, CHEN Jingshan1, LUO Bing1, TONG Mingsheng2, LEI Cheng3, ZENG Lingping3   

  1. 1. School of Resource and Environment Engineering, Southwest Petroleum University, Chengdu 610500, China;
    2. Geological Exploration and Development Research Institute, Chuan-Qing Drilling and Exploration Corporation, Chengdu 610051, China;
    3. Northeast Sichuan Gas Filed, PetroChina Southwest Oil and Gas Field Company, Dazhou 635000, China
  • Received:2008-06-02 Revised:2008-09-23 Online:2009-03-25 Published:2010-05-21

摘要:

在沉积与储层基本特征研究的基础上,利用多种地震预测方法对川东北黄龙场气田下三叠统飞仙关组鲕滩储层的分布进行了预测:利用地震剖面层拉平方法,恢复了黄龙场气田飞仙关期东高西低的沉积古地貌,自东向西依次发育台地边缘、台缘斜坡及陆棚相带;根据地震响应特征,识别出4种不同的地震相类型,并且利用神经网络波形聚类技术,指出了不同地震相的平面分布;通过均方根振幅、波形及弧长等地震属性的提取与处理,发现飞仙关组鲕滩储层具有强振幅、高频衰减、强相位异常等特征,揭示了鲕滩储层主要分布于东部的D4井—hl6井—hl9井一带;应用井约束稀疏脉冲反演方法,指出飞仙关组鲕滩储层低速异常明显,主要分布在距飞四底反射层0~60ms范围内;利用三维地震数据体追踪点集,雕刻了飞仙关组鲕粒滩体的三维空间分布特征。实际应用效果表明,该地震储层预测技术方法体系对四川盆地东北部鲕滩储层的预测具有较好的指导意义。

关键词: 川东北地区, 黄龙场气田, 飞仙关组, 碳酸盐岩, 储层预测, 地震属性, 鲕粒滩体

Abstract:

The characteristics of deposition in the carbonate reservoirs of Feixianguan Formation in the Lower Triassic of Huanglongchang Gas Field in the northeastern Sichuan Basin were studied by the use of geologic-seismic integrated method. The seismic profile was flattened to the base of Member 4 in Feixianguan Formation to restore the depositional paleogeomorphology during the Feixianguan period. The result indicated that the eastern area was higher than the western area in the depositional paleogeomorphology, and the platform-edge, slope and continental shelf were developed from east to west. According to the seismic response characteristics, four types of seismic facies were recognized. The distribution of seismic facies was divided using the neural network waveform clustering technique. The research of seismic attribute shows that the oolitic bank reservoir in Feixiangan Formation has the characteristics of high amplitude, high frequency attenuation and abnormal phases, and the oolitic bank reservoirs mainly distributed in the eastern area of D4-h16-h19 wells. The application of the constrained sparse spike inversion method found that the oolitic bank reservoirs of Feixianguan Formation had apparently abnormal low P-wave impedance and were developed in the range of 0~60 ms above the base of Member 4 of Feixianguan Formation. The 3-D space distribution of oolitic bank in Feixianguan formation was described by using the 3-D seismic data. The field application of the reservoir seismic prediction system has achieved good effects in the prediction of the oolitic bank reservoirs in the northeastern Sichuan Basin.

Key words: northeastern Sichuan Basin, Huanglongchang Gas Field, Feixianguan Formation, carbonate rock, reservoir prediction, seismic attributes, oolitic bank reservoirs

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