90°相位转换技术在黄河口凹陷新近系储层预测中的应用
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摘要
90°相位转换技术是通过地震相位旋转90°,使地震反射的主要同相轴与地质上的岩层对应,从而使地震相位具有岩性地层意义。该技术具有运算速度快、完全尊重原始地震资料,无需井资料和模型的约束等特点,尤其适合海上少井或无井条件下的储层研究。90°相位转换技术在渤海黄河口凹陷新近系油田的储层研究中取得了良好的应用效果,提高了储层的研究精度,尤其是薄层的可解释性。在相似地质背景条件下,该技术具有广泛的应用前景。
90°-phase conversion technique can make the main seismic event coincide with the geologically defined sandstone bed through rotating seismic phase for ninety-degree,and the seismic phases have lithological stratigraphic significance.This technology has the advantages of fast calculation speed and fully respecting the raw seismic data,it is not constrained by well data and the model, so it's especially suitable for offshore reservoir research target which has no well or few wells.Ninety-degree phase conversion technique achieved a good application effects on reservoir prediction of Neogene oil fields in Huanghekou Sag.It improved reservoir prediction accuracy especially made the thin bed interpretation much easier.This technology can be promoted to oilfields with similar geological conditions.
90°-phase conversion technique can make the main seismic event coincide with the geologically defined sandstone bed through rotating seismic phase for ninety-degree,and the seismic phases have lithological stratigraphic significance.This technology has the advantages of fast calculation speed and fully respecting the raw seismic data,it is not constrained by well data and the model, so it's especially suitable for offshore reservoir research target which has no well or few wells.Ninety-degree phase conversion technique achieved a good application effects on reservoir prediction of Neogene oil fields in Huanghekou Sag.It improved reservoir prediction accuracy especially made the thin bed interpretation much easier.This technology can be promoted to oilfields with similar geological conditions.
引文
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[5]董春梅,张宪国,林承焰.地震沉积学的概念、方法和技术[J].沉积学报,2006,24(5):699 704.
[6]魏嘉,朱文斌.地震沉积学——地震解释的新思路及沉积研究的新工具[J].勘探地球物理进展,2008,31(2):91-102.
[7]Hongliu Zeng,Tucker F Hentz.High-frequency sequence stratigraphy from seismic sedimentology:Applied to Miocene, Vermilion Block 50,Tiger Shoal area,offshore Louisiana[J]. AAPG Bulletin,2004,88(2):153 - 174.
[8]张明学,雷江平,刘伟伟,等.90°相位转换和波形分类技术在贝西北地区储层预测中的应用[J].科学技术与工程,2010,10(18): 4376-4380.
[9]刘春慧,金振奎,刘家铎,等.地震数据处理技术在准噶尔盆地东部C25井西区砂体识别中的应用[J].矿物岩石,2007,27(4): 104-111.
[10]陈旭,陈红汉,董玉文,等.地震沉积学研究方法评析[J].沉积与特提斯地质,2010,30(1):54-60.
[2]林承焰,张宪国.地震沉积学探讨[J].地球科学进展,2006,21 (11):1140 1144.
[3]董春梅,张宪国,林承焰.有关地震沉积学若干问题的探讨[J].石油地球物理勘探,2006,41(4):405-409.
[4]林承焰,张宪国,董春梅.地震沉积学及其初步应用[J].石油学报,2007,28(2):69-72.
[5]董春梅,张宪国,林承焰.地震沉积学的概念、方法和技术[J].沉积学报,2006,24(5):699 704.
[6]魏嘉,朱文斌.地震沉积学——地震解释的新思路及沉积研究的新工具[J].勘探地球物理进展,2008,31(2):91-102.
[7]Hongliu Zeng,Tucker F Hentz.High-frequency sequence stratigraphy from seismic sedimentology:Applied to Miocene, Vermilion Block 50,Tiger Shoal area,offshore Louisiana[J]. AAPG Bulletin,2004,88(2):153 - 174.
[8]张明学,雷江平,刘伟伟,等.90°相位转换和波形分类技术在贝西北地区储层预测中的应用[J].科学技术与工程,2010,10(18): 4376-4380.
[9]刘春慧,金振奎,刘家铎,等.地震数据处理技术在准噶尔盆地东部C25井西区砂体识别中的应用[J].矿物岩石,2007,27(4): 104-111.
[10]陈旭,陈红汉,董玉文,等.地震沉积学研究方法评析[J].沉积与特提斯地质,2010,30(1):54-60.
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