应用曲率属性预测裂缝发育带及其产状
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摘要
曲率作为一种描述地质体弯曲程度的几何属性,与地质体的受力程度成正比,进而也与因受力而形成的裂缝的发育特征高度相关。本文以柴达木盆地昆北地区中部A区块为例,应用俄克拉荷马矿业大学的AASPI软件提取地震反射面的曲率属性,如最大曲率、最小曲率、最正曲率及最负曲率等,在分析、对比各个属性优缺点的基础上,找到了一套适用于该区的应用曲率属性预测裂缝发育带的方案。
As a geometric attribute to describe the bending degree for a geologic body,the curvature attribute is proportional to the stress degree of the geologic body,as a result it is highly relevant to the fracture's development characteristics formed by the stress.In this paper the A Block in the middle of Kunbei area in Qaidam Basin was taken as study area and the AAPSI software from Oklahoma Mining University was utilized to extract the curvature attributes of the seismic reflection surface,such as maximum curvature,minimum curvature,maximum positive curvature,maximum negative curvature and so on,then based on the effective curvature attributes selected by attribute optimization process,a suitable solution for this area in which the curvature attributes were utilized to predict the fracture-developed zone was found out in this paper.
As a geometric attribute to describe the bending degree for a geologic body,the curvature attribute is proportional to the stress degree of the geologic body,as a result it is highly relevant to the fracture's development characteristics formed by the stress.In this paper the A Block in the middle of Kunbei area in Qaidam Basin was taken as study area and the AAPSI software from Oklahoma Mining University was utilized to extract the curvature attributes of the seismic reflection surface,such as maximum curvature,minimum curvature,maximum positive curvature,maximum negative curvature and so on,then based on the effective curvature attributes selected by attribute optimization process,a suitable solution for this area in which the curvature attributes were utilized to predict the fracture-developed zone was found out in this paper.
引文
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[3]Sigismondi ME,Soldo J C.Curvature attributes and seismic interpretation:Case studies from Argentina basins.The Leading Edge,2003,22(11):1112～1126
[4]Hel more S,Plumley A et al.A3D seismic volume curvature attribute aids structural and stratigraphic interpretation∥PETEX Conference,London,Nov23～25,2004,Expanded Absrtact
[5]Al-Dossary S and Marfurt KJ.3D volumetric multi-spectral estimates of reflector curvature and rotaion.Geophysics,2006,71(5):P41～P51
[6]Marfurt K.Curvature attribute applications to3Dsur-face seismic data.The Leading Edge,2007,26(4):404～414
[7]Price NJ and Cosgrove J W.Analysis of Geological Structure.Cambridge University Press,1990
[8]陶洪辉,秦国伟,徐文波等.地层主曲率在研究储层裂缝发育中的应用.新疆石油天然气,2005,1(2)
[9]杜文风,彭苏萍,黎咸威.基于地震层曲率属性预测煤层裂隙.煤炭学报,2006,31(增刊):30～33
[10]Peet F G and Sahota T S.Surface curvature as a measure of image texture.IEEE Transactions on Pattern Analysis and Machine Intelligence,1985
[11]Rektory K.Surveyof Applicable Mathematic.MIT Press,1969
[12]Young M.Statistical Characterization of Attribute Matrices by Computer.Us Army European Research Office Press,1978
[13]袁晓,张红雨,虞厥邦.分数导数与数字微分器设计.电子学报,2004,32(10):1658～1665
[14]Chopra S and Marfurt K J.Volumetric curvature at-tributes add value to3D seismic data interpretation.The Leading Edge,2007,26(7):856～867
[15]周英杰.裂缝性潜山油藏表征与预测.北京:石油工业出版社,2006,108～118
[2]Roberts A.Curvature attributes and their application to3D interpreted horizons.First Break,2001,19(2):85～100
[3]Sigismondi ME,Soldo J C.Curvature attributes and seismic interpretation:Case studies from Argentina basins.The Leading Edge,2003,22(11):1112～1126
[4]Hel more S,Plumley A et al.A3D seismic volume curvature attribute aids structural and stratigraphic interpretation∥PETEX Conference,London,Nov23～25,2004,Expanded Absrtact
[5]Al-Dossary S and Marfurt KJ.3D volumetric multi-spectral estimates of reflector curvature and rotaion.Geophysics,2006,71(5):P41～P51
[6]Marfurt K.Curvature attribute applications to3Dsur-face seismic data.The Leading Edge,2007,26(4):404～414
[7]Price NJ and Cosgrove J W.Analysis of Geological Structure.Cambridge University Press,1990
[8]陶洪辉,秦国伟,徐文波等.地层主曲率在研究储层裂缝发育中的应用.新疆石油天然气,2005,1(2)
[9]杜文风,彭苏萍,黎咸威.基于地震层曲率属性预测煤层裂隙.煤炭学报,2006,31(增刊):30～33
[10]Peet F G and Sahota T S.Surface curvature as a measure of image texture.IEEE Transactions on Pattern Analysis and Machine Intelligence,1985
[11]Rektory K.Surveyof Applicable Mathematic.MIT Press,1969
[12]Young M.Statistical Characterization of Attribute Matrices by Computer.Us Army European Research Office Press,1978
[13]袁晓,张红雨,虞厥邦.分数导数与数字微分器设计.电子学报,2004,32(10):1658～1665
[14]Chopra S and Marfurt K J.Volumetric curvature at-tributes add value to3D seismic data interpretation.The Leading Edge,2007,26(7):856～867
[15]周英杰.裂缝性潜山油藏表征与预测.北京:石油工业出版社,2006,108～118
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