合成地震记录制作的影响因素及对策  

Influencing factors in making synthetic seismogram and counter measures.

作　　者：靳玲[1] 苏桂芝[1] 刘桂兰[1] 朱丕跃[1] 李磊[1] 胡艳萍[1] 

机构地区：[1]中国石化河南油田勘探开发研究院,河南南阳473132

出　　处：《石油物探》2004年第3期267-271,共5页Geophysical Prospecting For Petroleum

摘　　要：人工合成记录在地震资料的解释和储层预测中起着重要的作用,为此,从5个方面论述了合成记录制作过程中应该注意的问题,即①褶积模型建立;②子波参数选择;③测井资料与地震资料的匹配;④层位标定与地震记录的极性;⑤反射系数的精确提取等。这些问题都不同程度地制约着合成记录的制作精度,而精确的合成记录又是储层预测和油藏描述的重要前提。提出了用相关系数、声波曲线对比和求剩余记录等方法来检查合成记录制作的质量。Synthetic seismogram plays an important role in seismic interpretation and seismic reservoir predic- tion. This paper discusses 5 issues that should be paid attention to in making synthetic seismogram. These issues include construction of convolutional model, selection of wavelet parameters, correlation of logging and seismic data, horizon calibration and the polarity of seismic signal, as well as extraction of accurate reflection coefficients. These issues govern in varying extent the accuracy of synthetic seismo- gram that is vital to reservoir prediction and charac- terization. Several methods, including correlation, correlation of acoustic curves, and calculation of re- sidual error, are proposed to control the quality of synthetic seismogram.

关 键 词：合成地震记录 制作方法 子被 褶积模型 储层精细评价 地震资料 

分 类 号：P631.4[天文地球—地质矿产勘探]