胜利油区精细近地表结构调查技术研究
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摘要
随着老油田勘探开发对地震采集资料的精度要求越来越高,近地表结构调查资料的准确性就显得尤为重要。要提高资料品质,首先要获得准确的表层数据,寻找最佳的激发岩性,这将会对地震资料品质的提高具有巨大推动作用。在研究过程中,结合胜利油区史南—郝家地震勘探采集项目对多种表层结构调查方法进行野外试验、资料分析与方法总结,形成了速度分层技术、岩性探测技术、岩土物性参数岩性分层技术等高精度表层结构参数调查技术。试验结果表明,在不同地区,依据工区特点优选一种或多种合适的近地表调查方法,充分发挥不同方式的优点,通过多种方法的使用和资料的联合解释,可以较好地获得低降速层的埋深、速度和岩性资料,为激发和接收参数的选取提供依据,而且为地震数据的静校正处理提供精确的资料。
As the accuracy of seismic data acquisition is getting higher for oilfield exploration and development, the accuracy of near-surface structure is particularly important. To improve accuracy of seismic data acquisition, first is to get accurate surface data, looking for the best lithology shooting. This will improve the quality of seismic data considerably. In the course of study, test, analysis and summary are conducted on many survey methods for surface structure relying on the Shinan-Haojia seismic exploration project, developing the layered technology of speed, detection technology of lithology and layered technology of geotechnical physical parameters, etc. Test shows that selecting one or more appropriate methods for near-surface survey and making full use of their advantages could get the depth, speed and lithologic data for low velocity layer, based on the use of different methods and joint explanation, providing evidence for selecting shooting and receiving parameters and offering accurate data for static correction of seismic data.
As the accuracy of seismic data acquisition is getting higher for oilfield exploration and development, the accuracy of near-surface structure is particularly important. To improve accuracy of seismic data acquisition, first is to get accurate surface data, looking for the best lithology shooting. This will improve the quality of seismic data considerably. In the course of study, test, analysis and summary are conducted on many survey methods for surface structure relying on the Shinan-Haojia seismic exploration project, developing the layered technology of speed, detection technology of lithology and layered technology of geotechnical physical parameters, etc. Test shows that selecting one or more appropriate methods for near-surface survey and making full use of their advantages could get the depth, speed and lithologic data for low velocity layer, based on the use of different methods and joint explanation, providing evidence for selecting shooting and receiving parameters and offering accurate data for static correction of seismic data.
引文
[1]陈华,王艳玲,张亚斌.近地表人为改造严重地区的表层调查方法探讨[J].石油天然气学报,2011,33(4):77-81.
[2]肖景华,曹来勇,翟桐立.追踪岩性激发在高精度地震采集中的应用效果[J/CD]《.中国学术期刊(光盘版)》电子杂志社,2003:631.
[3]任宏民.第四系冲积平原覆盖区激发技术[J].中国石油大学胜利学院学报,2009,23(1):3～6.
[4]潘文锋,张树海,秦瞳.塔里木盆地沙漠区折射波观测方法分析[J].石油物探,2004,43(3):258～261.
[5]谭绍泉,徐锦玺,张庆淮,等.虚反射和岩性对激发井深选择的影响[J].油气地球物理,2003,1(3):11～14.
[6]李天树,陈宝德,苏德仁.双井微测井技术在表层结构调查中的应用[J].石油物探,2004,43(5):471～474.
[7]陈理,郝明林.静力触探在工程地质勘探中的应用.甘肃地质学报,2005,14(2):40～41.
[2]肖景华,曹来勇,翟桐立.追踪岩性激发在高精度地震采集中的应用效果[J/CD]《.中国学术期刊(光盘版)》电子杂志社,2003:631.
[3]任宏民.第四系冲积平原覆盖区激发技术[J].中国石油大学胜利学院学报,2009,23(1):3～6.
[4]潘文锋,张树海,秦瞳.塔里木盆地沙漠区折射波观测方法分析[J].石油物探,2004,43(3):258～261.
[5]谭绍泉,徐锦玺,张庆淮,等.虚反射和岩性对激发井深选择的影响[J].油气地球物理,2003,1(3):11～14.
[6]李天树,陈宝德,苏德仁.双井微测井技术在表层结构调查中的应用[J].石油物探,2004,43(5):471～474.
[7]陈理,郝明林.静力触探在工程地质勘探中的应用.甘肃地质学报,2005,14(2):40～41.
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