邵伯地区砂砾岩扇体圈闭描述方法
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摘要
高邮凹陷邵伯地区戴南组发育近岸水下扇砂砾岩体隐蔽圈闭,扇体识别、形态刻画及砂砾岩厚度预测是此类圈闭描述重点及难点。针对难点,通过正演模拟明确了扇体内幕及外部的地震反射特征,以指导地震剖面扇体识别;应用三维可视化地震数据浏览确定了扇体空间特征,以多属性聚类分析圈定了扇体平面形态;应用波阻抗反演预测了扇体储层厚度。综合以上研究,邵伯地区落实扇体圈闭5个,为钻探提供了可靠依据,并在后期生产中取得了较好的效果。
Nearshore subaqueous fans are well developed in Dainan Formation of Gaoyou Sag,and the emphasis and difficulty of the trap description are the fan body recognition,the morphological characterization and the glutenite thickness prediction. Aiming at the difficulty,through forward modeling,the seismic reflection features inside and outside the fan body were cleared to guide the seismic fan identification; the fan body space was determined by browsing three- dimensional visualization seismic data,and the fan body shape was delineated through the multiple attribute clustering analysis;the fan reservoir thickness was predicted by wave impedance inversion. Based on the above study,five fan traps were found in Shaobo area. This provided a reliable basis for drilling,and achieved good application effect.
引文
[1]徐长贵,周心怀,杨波,等.渤中凹陷石南陡坡带构造-岩性复合圈闭的形成及分布规律[J].现代地质,2009,23(5):887-893.
    [2]夏连军,吴向阳,毛树礼,等.高邮凹陷邵伯地区近岸水下扇的地震预测[J].勘探地球物理进展,2008,31(3):212-218.
    [3]薄永德,贺向阳.苏北盆地高邮凹陷邵伯西地区戴南组隐蔽油藏研究[J].石油物探,2004,43(2):159-162.
    [4]刘玉瑞.苏北后生断陷层序地层格架与沉积体系[J].复杂油气藏,2010,3(1):10-14.
    [5]王娟,陈玉林,郭宝玺.三维可视化河道立体解释技术[J].石油地球勘探,2005,40(6):677-681.
    [6]王利田,苏小军,管仁顺,等.地震属性分析在彩16井区储层预测中的应用[J].地球物理学进展,2006,21(3):922-925.

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