裂缝性储层地震识别技术
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摘要
运用地震叠后及叠前裂缝检测技术对川西致密砂体的裂缝发育密度及方位进行了精细描述,分析了裂缝发育带的分布规律。由于裂缝的复杂性和多解性,单一地震技术难以对裂缝作出精确预测,需要结合叠后及叠前地震裂缝检测技术予以精细描述,这样既可以指示断裂发育部位,又能进一步揭示裂缝发育的规模及沟通情况。
In this paper, both pre-stack and post-stack fracture detection technologies have been applied to a fine description to fracture ’ s growth density and azimuth of tight sandstone in western Sichuan Basin. And the distribution of fracture-developed zone is also analyzed. It is very difficult to predict fracture precisely by only one seismic technology just because of the complexity and multiple-solution of fracture. So, both pre-stack and post-stack fracture detection technologies should be applied together to the fine description, which can either indicate a fracture-developed portion or further show the fractured-developed scale and connectivity.
In this paper, both pre-stack and post-stack fracture detection technologies have been applied to a fine description to fracture ’ s growth density and azimuth of tight sandstone in western Sichuan Basin. And the distribution of fracture-developed zone is also analyzed. It is very difficult to predict fracture precisely by only one seismic technology just because of the complexity and multiple-solution of fracture. So, both pre-stack and post-stack fracture detection technologies should be applied together to the fine description, which can either indicate a fracture-developed portion or further show the fractured-developed scale and connectivity.
引文
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[5]van der Neut J,Shaw P K,Mrinal K S.Estimation of the fluid indicator from azimuthal AVO gradient variations at a fractured reservoir[J].Expanded Abstracts of77[th]AnnualI nternat SEG Mtg,2007,239-243.
[6]陈永波,雍学善,刘化清.沉积体系域控制下的岩性油气藏预测方法研究及应用[J].岩性油气藏,2007,19(2):62-66.
[7]Feng Shen,Sierra J et al.Azimuthal offset-dependent attributes applied to fracture detection in a carbonate reservoir[J].Geophysics,2002,67(2):355-364.
[8]David G,Kim H.Fracture detection in Manderson Field:A3-D AVAZ case history[J].The Leading Edge,2000,19(11):1214-1221.
[9]王孟华,崔永谦,张锐峰.泥灰岩裂缝储层预测方法研究:以束鹿凹陷为例[J].岩性油气藏,2007,19(3):114-119.
[10]张志让,王兆峰,张梅华,等.利用三维叠前地震资料预测火成岩储层裂缝分布[J].石油地球物理勘探,2010,(1):92-98.
[11]Andre,Ruge.Variation of P—wave reflectivity with offseta nd azimuth in anisotropic media[J].Expanded Abstractso f66th Annual Internat SEG Mtg,1996:1810-1813.
[2]巫芙蓉,李亚林,王玉雪.储层裂缝发育带的地震综合预测[J].天然气工业,2006,26(11):49-51.
[3]曲寿利,季玉新,王鑫,等.全方位P波属性裂缝检测方法[J].石油地球物理勘探,2001,36(4):391-397.
[4]王国刚,苏培东.罗家寨构造嘉陵江组嘉四~2段底部裂缝预测[J].岩性油气藏,2009,21(4):82-86.
[5]van der Neut J,Shaw P K,Mrinal K S.Estimation of the fluid indicator from azimuthal AVO gradient variations at a fractured reservoir[J].Expanded Abstracts of77[th]AnnualI nternat SEG Mtg,2007,239-243.
[6]陈永波,雍学善,刘化清.沉积体系域控制下的岩性油气藏预测方法研究及应用[J].岩性油气藏,2007,19(2):62-66.
[7]Feng Shen,Sierra J et al.Azimuthal offset-dependent attributes applied to fracture detection in a carbonate reservoir[J].Geophysics,2002,67(2):355-364.
[8]David G,Kim H.Fracture detection in Manderson Field:A3-D AVAZ case history[J].The Leading Edge,2000,19(11):1214-1221.
[9]王孟华,崔永谦,张锐峰.泥灰岩裂缝储层预测方法研究:以束鹿凹陷为例[J].岩性油气藏,2007,19(3):114-119.
[10]张志让,王兆峰,张梅华,等.利用三维叠前地震资料预测火成岩储层裂缝分布[J].石油地球物理勘探,2010,(1):92-98.
[11]Andre,Ruge.Variation of P—wave reflectivity with offseta nd azimuth in anisotropic media[J].Expanded Abstractso f66th Annual Internat SEG Mtg,1996:1810-1813.
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