川西坳陷须家河组气藏DR技术应用
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摘要
川西坳陷须家河组气藏属于深层陆相致密碎屑岩气藏,具有致密、低孔低渗、薄层交互、多层叠置和非均质性强的特点,长期以来,勘探成功率低、效益差。为此,有针对性地开展了须家河组气藏含气性检测技术应用研究,形成了基于地震波散射理论的DR(Dynamic Register,动态频谱能量异常)含气性检测技术,DR值大,说明地震资料的主频衰减率高、速度异常大,储集层可能富含天然气。该技术在川西坳陷须家河组气藏勘探开发中取得了很好的应用效果,含气砂岩储集层具有DR值高异常特征。但在实际应用DR含气性检测技术时,要注意储集层厚度不能太小,一般需大于地震剖面上能够分辨的最小储集层厚度,否则就会出现假DR值高异常现象。图2参10
The T_(3)x gas reservoirs in the depression of West Sichuan is the deep continental tight clastic rock gas reservoirs with the characteristics of tight,low permeability,thin interbed,multi-layer nappe,and high heterogeneity.Aimed at the problems of difficult oil & gas prospecting and low profit in the reservoirs,the DR(Dynamic Register) technology,a seismic technology for detecting oil and gas,is developed based on scattering of seismic waves.A big DR value means that the seismic data has a high decay rate of dominant frequency and an abnormally high speed,indicating a high probability of rich gas in the reservoir.The technology only applies to the reservoir whose thickness is bigger than the minimum reservoir thickness identifiable in the seismic section.The technology is successfully used in the T_(3)x gas reservoirs.
The T_(3)x gas reservoirs in the depression of West Sichuan is the deep continental tight clastic rock gas reservoirs with the characteristics of tight,low permeability,thin interbed,multi-layer nappe,and high heterogeneity.Aimed at the problems of difficult oil & gas prospecting and low profit in the reservoirs,the DR(Dynamic Register) technology,a seismic technology for detecting oil and gas,is developed based on scattering of seismic waves.A big DR value means that the seismic data has a high decay rate of dominant frequency and an abnormally high speed,indicating a high probability of rich gas in the reservoir.The technology only applies to the reservoir whose thickness is bigger than the minimum reservoir thickness identifiable in the seismic section.The technology is successfully used in the T_(3)x gas reservoirs.
引文
[1]李显贵,邵吉华,张涛.波阻抗模型正演技术在砂岩储集层预测中的应用[J].石油物探,2004,43(6):584-586.(LI Xian-gui,SHAO Ji-hua,ZHANG Tao.Forward modeling to tracesandstone by P-wave impedance in west Sichuan[J].GeophysicalProspecting for Petroleum,2004,43(6):584-586.)
[2]杨振武,李显贵,王安志.新场、东泰、合兴场三维地震相干及应用[J].石油地球物理勘探,2000,35(3):339-345.(YANG Zhen-wu,LI Xian-gui,WANG An-zhi.Coherent processing of 3-Dseismic data in Xinchang,Dongtai,Hexinchang areas,and theapplication[J].Oil Geophysical Prospecting,2000,35(3):339-345.)
[3]许多,李显贵,刘殊,等.合兴场地震资料吸收油气预测研究[J].物探化探计算技术,2000,22(2):56-58.(XU Duo,LI Xian-gui,LIU Shu,et al.The study on seismic absorption method topredict oil and gas in Hexingchang[J].Computing Techniques forGeophysical and Geochemical Exploration,2000,22(2):56-58.)
[4]李显贵,文雪康,王紫娟,等.洛带气田地震多参数综合油气预测研究[J].石油地球物理勘探,2000,35(6):779-785.(LI Xian-gui,WEN Xue-kang,WANG Zi-juan,et al.The study onseismic feature method to predict oil and gas in Luodai[J].OilGeophysical Prospecting,2000,35(6):779-785.)
[5]李显贵.非线性突变在石龙场油气预测中的应用[J].石油物探,2003,42(3):306-308.(LI Xian-gui.Application of nonlinearmutation in hydrocarbon prediction in Shilongchang[J].Geophysical Prospecting for Petroleum,2003,42(3):306-308.)
[6]李正文,李琼,唐建明.油气储集层线性与非线性联合预测方法技术及应用[J].石油物探,2000,39(2):15-23.(LI Zheng-wen,LI Qiong,TANG Jian-ming.Linear and nonlinear unifiedprediction of oil and gas reservoirs[J].Geophysical Prospectingfor Petroleum,2000,39(2):15-23.)
[7]唐建明.川西坳陷致密非均质气藏储集层空间展布刻划[J].天然气工业,2002,22(4):19-23.(TANG Jian-ming.Describing thespace distribution of the heterogeneity tight gas reservoirs in westSichuan Depression[J].Natural Gas Industry,2002,22(4):19-23.)
[8]李显贵,石全科,刘胜.中国石油化工(下)[M].北京:石油工业出版社,2003.265-268.(LI Xian-gui,SHI Quan-ke,LIUSheng.China Petrochemical(Vol.2)[M].Beijing:PetroleumIndustry Press,2003.265-268.)
[9]王再锋,赵利华.俄罗斯应用散射地震波特征参数分析研究基岩结构及油气藏[J].勘探地球物理进展,2004,27(6):455-459.(WANG Zai-feng,ZHAO Li-hua.Study on basement structureand hydrocarbon reservoir by scattering analysis of seismic wavein Russia[J].Progress in Exploration Geophysics,2004,27(6):455-459.)
[10]李显贵,甘其刚.川西坳陷致密非均质储集层地震识别技术[J].特种油气藏,2004,11(5):32-35.(LI Xian-gui,GAN Qi-gang.Seismicrecognition of tight heterogeneous reservoirs in Chuanxi depression[J].Special Oil&Gas Reservoirs,2004,11(5):32-35.)
[2]杨振武,李显贵,王安志.新场、东泰、合兴场三维地震相干及应用[J].石油地球物理勘探,2000,35(3):339-345.(YANG Zhen-wu,LI Xian-gui,WANG An-zhi.Coherent processing of 3-Dseismic data in Xinchang,Dongtai,Hexinchang areas,and theapplication[J].Oil Geophysical Prospecting,2000,35(3):339-345.)
[3]许多,李显贵,刘殊,等.合兴场地震资料吸收油气预测研究[J].物探化探计算技术,2000,22(2):56-58.(XU Duo,LI Xian-gui,LIU Shu,et al.The study on seismic absorption method topredict oil and gas in Hexingchang[J].Computing Techniques forGeophysical and Geochemical Exploration,2000,22(2):56-58.)
[4]李显贵,文雪康,王紫娟,等.洛带气田地震多参数综合油气预测研究[J].石油地球物理勘探,2000,35(6):779-785.(LI Xian-gui,WEN Xue-kang,WANG Zi-juan,et al.The study onseismic feature method to predict oil and gas in Luodai[J].OilGeophysical Prospecting,2000,35(6):779-785.)
[5]李显贵.非线性突变在石龙场油气预测中的应用[J].石油物探,2003,42(3):306-308.(LI Xian-gui.Application of nonlinearmutation in hydrocarbon prediction in Shilongchang[J].Geophysical Prospecting for Petroleum,2003,42(3):306-308.)
[6]李正文,李琼,唐建明.油气储集层线性与非线性联合预测方法技术及应用[J].石油物探,2000,39(2):15-23.(LI Zheng-wen,LI Qiong,TANG Jian-ming.Linear and nonlinear unifiedprediction of oil and gas reservoirs[J].Geophysical Prospectingfor Petroleum,2000,39(2):15-23.)
[7]唐建明.川西坳陷致密非均质气藏储集层空间展布刻划[J].天然气工业,2002,22(4):19-23.(TANG Jian-ming.Describing thespace distribution of the heterogeneity tight gas reservoirs in westSichuan Depression[J].Natural Gas Industry,2002,22(4):19-23.)
[8]李显贵,石全科,刘胜.中国石油化工(下)[M].北京:石油工业出版社,2003.265-268.(LI Xian-gui,SHI Quan-ke,LIUSheng.China Petrochemical(Vol.2)[M].Beijing:PetroleumIndustry Press,2003.265-268.)
[9]王再锋,赵利华.俄罗斯应用散射地震波特征参数分析研究基岩结构及油气藏[J].勘探地球物理进展,2004,27(6):455-459.(WANG Zai-feng,ZHAO Li-hua.Study on basement structureand hydrocarbon reservoir by scattering analysis of seismic wavein Russia[J].Progress in Exploration Geophysics,2004,27(6):455-459.)
[10]李显贵,甘其刚.川西坳陷致密非均质储集层地震识别技术[J].特种油气藏,2004,11(5):32-35.(LI Xian-gui,GAN Qi-gang.Seismicrecognition of tight heterogeneous reservoirs in Chuanxi depression[J].Special Oil&Gas Reservoirs,2004,11(5):32-35.)
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