合成地震记录制作的影响因素及对策
|
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.
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.
引文
1 张永升,李家蓉,潘新志.地震和测井联合反演技术在塔河油田碳酸盐岩储层预测中的应用[J].勘探地球物理进展,2002,25(6) :46～48
2 夏步余,谌廷姗.地震技术在火成岩发育区开发中的应用[J].石油物探,2002,42(4) :461～465
3 苏朝光,刘传虎,高秋菊.泥岩裂缝储层特征参数提取及反演技术的应用[J].石油物探,2002,42(3) :339～342
4 崔世凌,韩宏伟,魏瑞香,等.临南洼陷砂岩岩性油气藏描述方法及效果分析[J].石油物探,2002,41(2) :186～190
5 孙家振,李兰斌.多信息储层预测和油气判别[M].湖北武汉;中国地质大学出版社,1997． 47～48
6 张卫红.VSP和声波测井资料在岩性解释中的联合应用[J].石油物探,2002,41(2) :150～151
7 陈元庆,邓富求.VSP模型正演的应用效果[J].石油物探,1993,32(1) :35～44
8 孙振涛,孟宪军,慎国强.高精度合成地震记录制作技术研究[J].石油地球物理勘探,2002,37(6) :641～642
2 夏步余,谌廷姗.地震技术在火成岩发育区开发中的应用[J].石油物探,2002,42(4) :461～465
3 苏朝光,刘传虎,高秋菊.泥岩裂缝储层特征参数提取及反演技术的应用[J].石油物探,2002,42(3) :339～342
4 崔世凌,韩宏伟,魏瑞香,等.临南洼陷砂岩岩性油气藏描述方法及效果分析[J].石油物探,2002,41(2) :186～190
5 孙家振,李兰斌.多信息储层预测和油气判别[M].湖北武汉;中国地质大学出版社,1997． 47～48
6 张卫红.VSP和声波测井资料在岩性解释中的联合应用[J].石油物探,2002,41(2) :150～151
7 陈元庆,邓富求.VSP模型正演的应用效果[J].石油物探,1993,32(1) :35～44
8 孙振涛,孟宪军,慎国强.高精度合成地震记录制作技术研究[J].石油地球物理勘探,2002,37(6) :641～642
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