P波方位AVO在LH11-1油田裂缝预测中的应用
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摘要
LH11-1油田是我国近海最大的生物礁滩油田,受台地多期演化及后期成岩改造作用的影响,其碳酸盐岩储层物性横向变化大,非均质性强,由裂缝引起的各向异性特征明显。为了尽可能获得储层内裂缝的发育程度和分布情况,以叠前高分辨率三维地震资料为基础,利用P波方位AVO技术,通过正演找出最能反映流花地区碳酸盐岩裂缝发育情况的属性,预测了其储层裂缝的分布。
The LH11-1 oil field is the biggest offshore bioherm(biobank) oil field of China.The carbonate platform has suffered multi-phase evolution and diagenesis.The physical properties of the carbonate reservoirs change drastically in lateral direction,showing a strong heterogeneity,which is obviously controlled by fracture systems.In order to acquire more information about the development of fractures and their distribution pattern as detail as possible,the method of P-wave azimuthal AVO based on high resolution 3D seismic data are applied in the carbonate reservoirs of Liu Hua oil field to finding out the most sensitive seismic properties for fracture detection,and distribution pattern prediction.
The LH11-1 oil field is the biggest offshore bioherm(biobank) oil field of China.The carbonate platform has suffered multi-phase evolution and diagenesis.The physical properties of the carbonate reservoirs change drastically in lateral direction,showing a strong heterogeneity,which is obviously controlled by fracture systems.In order to acquire more information about the development of fractures and their distribution pattern as detail as possible,the method of P-wave azimuthal AVO based on high resolution 3D seismic data are applied in the carbonate reservoirs of Liu Hua oil field to finding out the most sensitive seismic properties for fracture detection,and distribution pattern prediction.
引文
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[15]魏建新.岩石横波分裂和各向异性的试验观测[J].石油物探,1993,32(1):60-67.
[16]齐宇,魏建新,狄帮让,等.横向各向同性介质纵波方位各向异性物理模型研究[J].石油地球物理勘探,2009,44(6):671-674.
[17]Lynn HB,Bates C R,Si mon K M,et al.The effect of azimuthal anisotropy in P-wave 3D seismic[C]//ExpandedAbstracts of 65th SEG Annual Meeting[s.l.]:[s.n.],1995:727-730.
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[19]Thomsen L.Weak elastic anisotropy[J].Geophysics,1986,51(10):1 954-1 966.
[20]Rger A.P-wave reflection coefficients for transversely isotropic models with vertical and horizontal axis of sym-metry[J].Geophysics,1997,62(3):713-721.
[2]唐晓雪,唐建候.用P-SV转换波资料研究储层各向异性[J].石油地球物理勘探,1997,32(1):27-33.
[3]朱培民,王家映,於文辉,等.用纵波AVO数据反演储层裂隙密度参数[J].石油物探,2001,40(2):1-12.
[4]Carcuz J R.Acombined AVO analysis of P-P and P-S re-flection data[C]//Expanded Abstract of the 71st AnnualInternational SEG Meeting[s.l.]:[s.n.],2001.323-325.
[5]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):390-397.
[6]杜启振,杨慧珠.方位各向异性介质的裂缝预测方法研究[J].石油大学学报(自然科学版),2003,27(4):32-36.
[7]李绪宣.多波地震地层各向异性的初步研究和探讨[J].天然气工业,2001,21(5):41-44.
[8]罗省贤,李录明.基于横波分裂的地层裂缝预测方法与应用[J].成都理工大学学报(自然科学版),2003,30(1):52-59.
[9]彭晓波,彭苏萍,詹阁,等.P波方位AVO在煤层裂缝探测中的应用[J].岩石力学与工程学报,2005,24(16):2 960-2 965.
[10]孙武亮,李正文.纵波AVOA垂直裂缝参数反演与运用[J].物探化探计算技术,2007,27(4):295-300.
[11]郝守玲,赵群.裂缝介质对P波方位各向异性特征的影响———物理模型研究[J].勘探地球物理进展,2004,27(3):189-194.
[12]Assad J M.Aphysical model study of microcrack-inducedanisotropy[J].Geophysicas,1992,57(12):1 562-1 570.
[13]彭成斌,陈颙.利用物理模型横波分裂现象研究裂隙分布[J].地球物理学报,1989,32(增):163-173.
[14]Assad J M.The effect of orthorhombic anisotropy and itsi mplication for oil recovery and reservoir exploitation[J].Geophysical Prospecting,2005,53(1):121-129.
[15]魏建新.岩石横波分裂和各向异性的试验观测[J].石油物探,1993,32(1):60-67.
[16]齐宇,魏建新,狄帮让,等.横向各向同性介质纵波方位各向异性物理模型研究[J].石油地球物理勘探,2009,44(6):671-674.
[17]Lynn HB,Bates C R,Si mon K M,et al.The effect of azimuthal anisotropy in P-wave 3D seismic[C]//ExpandedAbstracts of 65th SEG Annual Meeting[s.l.]:[s.n.],1995:727-730.
[18]Rger A.Variation of P-wave reflectivity with of fset andazi muth in anisotropic media[J].Geophysics,1998,63(3):935-947.
[19]Thomsen L.Weak elastic anisotropy[J].Geophysics,1986,51(10):1 954-1 966.
[20]Rger A.P-wave reflection coefficients for transversely isotropic models with vertical and horizontal axis of sym-metry[J].Geophysics,1997,62(3):713-721.
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