利用偏移距衰减属性裂缝储层检测方法
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摘要
变质岩潜山是辽东湾JZ区块重要的油气勘探开发层位。通过对JZ区块潜山裂缝储层的研究,提出一种通过裂缝地层在大、小偏移距地震资料中的衰减梯度差异(DALLO分析)检测裂缝储层的方法。DALLO分析方法实现了在窄方位角采集条件下三维区块的裂缝储层发育程度的预测。根据预测结果,JZ区块潜山裂缝储层分布在距离潜山顶面一定距离的"带"内,且具有显著的非均质特征。
Metamorphics buried hill is the important prospective and developable layer in JZ oilfield.Through researching the fractured reservoirs in JZ oilfield,the authors present a method to use the difference of attenuation between little and large offsets(DALLO) to detect the fracture.The method can forecast the fractured reservoirs in the area with narrow azimuth seismic data.According to the forecasted results,the fractured reservoirs are distributed over the special zone being apart from the top of the buried hill and have distinct heterogeneous features.
Metamorphics buried hill is the important prospective and developable layer in JZ oilfield.Through researching the fractured reservoirs in JZ oilfield,the authors present a method to use the difference of attenuation between little and large offsets(DALLO) to detect the fracture.The method can forecast the fractured reservoirs in the area with narrow azimuth seismic data.According to the forecasted results,the fractured reservoirs are distributed over the special zone being apart from the top of the buried hill and have distinct heterogeneous features.
引文
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[2]LYNN H B.犹它州Bluebell2 Altamont油田裂隙气藏P波和S波方位各向异性响应[J].石油物探译丛,2000(2):30-47.
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[7]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.
[8]MALLICK S,CRAFT K L,LANRENT J.利用纵波地震资料确定方位各向异性的主方向[J].山地地震勘探,1998,22(1):63-85.
[9]高希勤,侯安宁,白俊辉,等.利用P波源三分量VSP检测裂缝[J].石油地球物理勘探,1998,33(1):109-117.
[10]刘洋,魏修成.三维反射纵波旅行时检测裂隙[J].石油地球物理勘探,1999,34(6):607-613.
[11]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.
[12]季玉新.用地震资料检测裂缝性油气藏的方法[J].勘探地球物理进展,2002,25(5):28-35.
[13]谢桂生,包吉山.横向各向同性介质中弹性波模拟及波场特征研究[J].石油地球物理勘探,1996,31(6):806-814.
[14]贺振华,黄捍东,胡光岷,等.地下介质横向变化的地震多尺度边缘检测技术[J].物探化探计算技术,1999,21(4):289-294.
[15]田锋.裂缝体的弹性模量和裂缝密度[J].地质学报,2007,81(10):1338-1344.
[16]SHEN F,TOKS Z M N.Scattering characteristicsin heterogeneously fractured reservoirs from wave-form estimation[J].Geophysical Journal Interna-tional,2002,140(2):251-266.
[2]LYNN H B.犹它州Bluebell2 Altamont油田裂隙气藏P波和S波方位各向异性响应[J].石油物探译丛,2000(2):30-47.
[3]MALLICK S,FRAZER L N.Reflection/transmis-sion coefficients and azimuthal anisotropy in marineseismic studies[J].Geophysics,1991,105:241-252.
[4]CRAFT K L,MALLICK S,MEISTER L J,et al.Azimuthal anisotropy analysis from P wave seismictraveltime data[C]//Expanded Abstracts of 67thSEGMeeting.1997:1214-1217.
[5]TSVANKN I.Reflection moveout and parameter es-timation for horizontal transverse isotropy[J].Geo-physics,1997,62(2):614-629.
[6]RUGER A.Variation of P-wave reflectivity with off-set and azimuth in anisotropic media[J].Geophys-ics,1998,63(3):935-947.
[7]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.
[8]MALLICK S,CRAFT K L,LANRENT J.利用纵波地震资料确定方位各向异性的主方向[J].山地地震勘探,1998,22(1):63-85.
[9]高希勤,侯安宁,白俊辉,等.利用P波源三分量VSP检测裂缝[J].石油地球物理勘探,1998,33(1):109-117.
[10]刘洋,魏修成.三维反射纵波旅行时检测裂隙[J].石油地球物理勘探,1999,34(6):607-613.
[11]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.
[12]季玉新.用地震资料检测裂缝性油气藏的方法[J].勘探地球物理进展,2002,25(5):28-35.
[13]谢桂生,包吉山.横向各向同性介质中弹性波模拟及波场特征研究[J].石油地球物理勘探,1996,31(6):806-814.
[14]贺振华,黄捍东,胡光岷,等.地下介质横向变化的地震多尺度边缘检测技术[J].物探化探计算技术,1999,21(4):289-294.
[15]田锋.裂缝体的弹性模量和裂缝密度[J].地质学报,2007,81(10):1338-1344.
[16]SHEN F,TOKS Z M N.Scattering characteristicsin heterogeneously fractured reservoirs from wave-form estimation[J].Geophysical Journal Interna-tional,2002,140(2):251-266.
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