四川洛带气田遂宁组储层地震响应特征及预测
详细信息 本馆镜像全文    |  推荐本文 | | 获取馆网全文
摘要
已有的勘探实践证实,储层预测是洛带气田遂宁组气藏描述的关键,只要能预测到储层发育区,基本上也就是油气富集区。遂宁组地层为湖相沉积,储层为砂泥岩互层,厚度普遍较薄,储层是相对高波阻抗,但波阻抗差异小,有效储层预测困难。通过对遂宁组气藏储层“低频、强振幅”地震响应特征形成机理分析,认为亮点预测模式有着一定的实用性,但陷阱也较多,地震相和层序地层特征分析简单而实用。利用三维可视化技术刻划储层展布,较清晰地描述了洛带气田遂宁组一段气藏的展布特征,并且预测了遂宁组气藏二段的展布。
Practice has shown that reservoir prediction is the key to the description of Suining Formation gas reser-voir in Luodai gas field, Sichuan province, and the predicted reservoirs basically coincided with gas enrichmentzone. The Suining Formation is of lacustrine facies, and reservoirs are interbedded sands and mudstones with rel-atively high wave impedance. Effective reservoirs were hard to predict because they are relatively thin, and low inwave impedance contrast. The characteristics of low frequency and high amplitude of the reservoirs revealed thatbright spot prediction is a useful technique, but potential pitfalls may stem from the careless use of the bright spotprediction. Analysis of seismic facies and sequence stratigraphic characteristics provides an applicable approach.With 3-D visualization techniques, the gas reservoir of the segment one of Suining Formation was delineated, andthe extent of the gas reservoir of the segment two of Suining Formation was inferred.
引文
1 杨克明,徐进.天然气成藏理论与勘探开发方法技术[M].北京:地质出版社,2004. 502~555
    2 赵泽江,黎从军,吕正祥.四川XC气田蓬莱镇组含气砂岩地震响应特征及预测[J].石油物探,1998,37(2) :1~7
    3 吕正祥.四川盆地川西新场气田蓬莱镇组气藏含气砂体识别[J].矿物岩石,2001,21(2) :52~55
    4 杨开珍,陈代军,陈伟民,等.洛带气田蓬莱镇组气层地震反射特征及横向预测[J].物探化探计算技术,2000,22(3) :216~219
    5 李跃纲,杨跃明.川西白马庙气田蓬莱镇组气藏地震储层预测技术研究[J].天然气工业,2002,22(1) :18~22
    6 贺振华,黄德济,缝洞储层的地震检测和预测[J].勘探地球物理进展,2003,26(2) :79~83
    7 黄德济,贺振华,何建军,等.致密储层缝洞发育带综合预测[J].勘探地球物理进展,2003,26(2) :114~120
    8 李正文.高分辩地震勘探[M].成都:成都理工大学出版社,1993. 45~47
    9 陈洪德,刘文均,郑荣才,等.层序地层学理论和研究方法[M].成都:四川科学技术出版社,1994. 166~178
    10 刘殊,甘其刚.海相及湖相碳酸盐岩储层预测--层序地层学技术在储展预测中的应用[J].石油物探,2003,42(2) :169~178

版权所有:© 2023 中国地质图书馆 中国地质调查局地学文献中心