基于物理模型的溶蚀孔洞体积定量雕刻影响因素研究
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摘要
溶蚀孔洞作为目前塔里木盆地碳酸盐岩储层主要的储集空间和勘探目标,定量计算其体积大小意义重大。针对基于地震反演结果的碳酸盐岩溶洞定量雕刻问题,设计了不同大小孔洞和不同充填物孔洞物理模型,在物理模型实验资料的基础上研究了孔洞大小和不同充填物对孔洞定量雕刻误差的影响;并通过在叠前道集资料上添加不同程度的随机噪声,分析了噪声对溶洞定量雕刻误差的影响。研究表明:孔洞越大,孔洞体积雕刻误差越小;孔洞内填充介质速度越低,孔洞体积雕刻误差越大;噪声的影响总是趋于缩小孔洞响应的体积,噪声越大,影响越明显。
Dissolution caves in carbonate reservoir are the main storage space and exploration targets in Tarim Basin,and it is of great importance to calculate the volume of dissolution caves quantitatively.In order to quantitatively estimate the volume,we designed cavern physical models with different-size caves and different fillings.Based on the physical modeling data,the impact of cave size and fillings on quantitative estimation was discussed.Then,the impact of noise on quantitative estimation was analyzed by adding variable random noise on pre-stack gathers of modeling data.The research shows that larger cave and higher filling velocity leads to smaller error on the volume estimation result.Meanwhile,stronger noise has more obvious impact on the volume estimation.
Dissolution caves in carbonate reservoir are the main storage space and exploration targets in Tarim Basin,and it is of great importance to calculate the volume of dissolution caves quantitatively.In order to quantitatively estimate the volume,we designed cavern physical models with different-size caves and different fillings.Based on the physical modeling data,the impact of cave size and fillings on quantitative estimation was discussed.Then,the impact of noise on quantitative estimation was analyzed by adding variable random noise on pre-stack gathers of modeling data.The research shows that larger cave and higher filling velocity leads to smaller error on the volume estimation result.Meanwhile,stronger noise has more obvious impact on the volume estimation.
引文
[1]韩革华,漆立新,李宗杰,等.塔河油田奥陶系碳酸盐岩缝洞型储层预测技术[J].石油与天然气地质,2006,27(6):860-870Han G H,Qi L X,Li Z J,et al.Prediction of the Or-dovician fractured-vuggy carbonate reservoirs inTahe Oilfield[J].Oil&Gas Geology,2006,27(6):860-870
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[7]鲁新便,蔡忠贤.缝洞型碳酸盐岩油藏古溶洞系统与油气开发——以塔河碳酸盐岩溶洞型油藏为例[J].石油与天然气地质,2010,31(1):22-27Lu X B,Cai Z X.A study of the paleo-cavern systemin fractured-vuggy carbonate reservoirs and oil/gasdevelopment—taking the reservoirs in Tahe Oilfieldas an example[J].Oil&Gas Geology,2010,31(1):22-27
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[11]付建元,戴小平,王瑞华,等.川南河包场区块茅口组缝洞系统定量描述[J].石油物探,2011,50(3):270-274Fu J Y,Dai X P,Wang R H,et al.Quantitative char-acterization of fracture-cave system of the lower Per-mian Maokou Formation in Hebaochang Block,Southern Sichuan Basin[J].Geophysical Prospec-ting for Petroleum,2011,50(3):270-274
[12]Zhang Y Y,Sun Z D,Yang H J,et al.Pre-stack in-version for caved carbonate reservoir prediction:acase study from Chinese Tarim Basin[J].PetroleumScience,2011,8(4):415-421
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[15]季敏,魏建新,王尚旭.孔洞物理模型数据的地震响应特征分析[J].石油地球物理勘探,2009,44(2):196-200Ji M,Wei J X,Wang S X.Seismic response charac-teristics of caved physical modeling[J].Oil Geo-physical Prospecting,2009,44(2):196-200
[16]陈蕾,孙赞东,魏建新,等.从数值模型和物理模型研究溶蚀孔洞的可探测性[C]//地质地球物理综合研究中心第三届技术年会论文集.2010:261-270Chen L,Sun Z D,Wei J X,et al.Study on the detect-ability of dissolution cave using numerical and physi-cal models[R].Lab for Integration of Geology andGeophysics research reports(Vol 3),2010
[17]Li Y Y,Jonathan D.The applications of amplitudeversus offset in carbonate reservoirs:reexaminingthe potential[J].Expanded Abstracts of 70th AnnualInternat SEG Mtg,2000
[18]王保丽,印兴耀,张繁昌.弹性阻抗反演及应用研究[J].地球物理学进展,2005,20(1):89-92Wang B L,Yin X Y,and Zhang F C.Elastic imped-ance inversion and its application,progress in Geo-physics[J].Progress of Geophysics,2005,20(1):89-92
[2]王世星,曹辉兰,靳文芳,等.碳酸盐岩缝洞系统地震响应特征分析和塔中卡1区缝洞储层预测[J].石油物探,2005,44(5):421-427Wang S X,Cao H L,Qi W F,et al.Seismic responseand prediction of fracture-cavity system in carbonatereservoir:a case study in the Ka-1field[J].Geo-physical Prospecting for Petroleum,2005,44(5):421-427
[3]王光付.碳酸盐岩溶洞型储层综合识别及预测方法[J].石油学报2008,29(1):47-51Wang G F.Integrative identification and predictionmethods for carbonate rock cave reservoir[J].ActaPetrolei Sinica,2008,29(1):47-51
[4]张宏,郑浚茂,杨道庆,等.塔中卡塔克区块古岩溶储层地震预测技术[J].石油学报,2008,29(1):69-74Zhang H,Zheng J M,Yang D Q,et al.Prediction ofpaleo-karst reservoir in the southeastern slope ofTazhong area in Tarim Basin using seismic tech-niques[J].Acta Petrolei Sinica,2008,29(1):69-74
[5]温志新,王红漫,漆立新,等.塔河油田奥陶系缝洞型碳酸盐岩储层预测研究[J].地学前缘,2008,15(1):94-100Wen Z X,Wang H M,Qi L X,et al.Research on theprediction of Ordovincian carbonate reservoir of fis-sure-cave type in the Tahe Oilfield[J].Earth Sci-ence Frontiers,2008,15(1):94-100
[6]漆立新,云露.塔河油田奥陶系碳酸盐岩岩溶发育特征与主控因素[J].石油与天然气地质,2010,31(1):1-12Qi L X,Yun L.Development characteristics andmain controlling factors of the Ordovician carbonatekarst in Tahe Oilfield[J].Oil&Gas Geology,2010,31(1):1-12
[7]鲁新便,蔡忠贤.缝洞型碳酸盐岩油藏古溶洞系统与油气开发——以塔河碳酸盐岩溶洞型油藏为例[J].石油与天然气地质,2010,31(1):22-27Lu X B,Cai Z X.A study of the paleo-cavern systemin fractured-vuggy carbonate reservoirs and oil/gasdevelopment—taking the reservoirs in Tahe Oilfieldas an example[J].Oil&Gas Geology,2010,31(1):22-27
[8]彭真明,李亚林,巫盛洪,等.碳酸盐岩储层多角度弹性阻抗流体识别方法[J].地球物理学报,2008,51(3):881-885Peng Z M,Li Y L,Wu S H,et al.Discriminating gasand water using multi-angle extended elastic imped-ance inversion in carbonate reservoirs[J].Geophys-ics(in Chinese),2008,51(3):881-885
[9]张进铎.碳酸盐岩储集层体积定量化估算技术[J].石油勘探与开发,2004,31(4):87-885Zhang J Z.A method to quantitatively calculate thevolume of carbonate reservoirs[J].Petroleum Ex-ploration&Development,2004,31(4):87-885
[10]赵裕辉,胡建中,鲁新便,等.碳酸盐岩缝洞型储集体识别与体积估算[J].石油地球物理勘探,2010,45(5):720-724Zhao Y H,Hu J Z,Lu X B,et al.Dissolved carbon-ate reservoir recognition and volume estimation[J].Oil Geophysical Prospecting,2010,45(5):720-724
[11]付建元,戴小平,王瑞华,等.川南河包场区块茅口组缝洞系统定量描述[J].石油物探,2011,50(3):270-274Fu J Y,Dai X P,Wang R H,et al.Quantitative char-acterization of fracture-cave system of the lower Per-mian Maokou Formation in Hebaochang Block,Southern Sichuan Basin[J].Geophysical Prospec-ting for Petroleum,2011,50(3):270-274
[12]Zhang Y Y,Sun Z D,Yang H J,et al.Pre-stack in-version for caved carbonate reservoir prediction:acase study from Chinese Tarim Basin[J].PetroleumScience,2011,8(4):415-421
[13]Tang Z Y,Sun Z D,Wei J X.Karsts-caved carbonatereservoir heterogeneity study by AVO/AVA inver-sion using aphysical modeling data[R].74th EAGETechnical Programmed Committee,2012
[14]张诗青,樊政军,柳建华,等.碳酸盐岩储集层定量评价[J].新疆石油地质,2003,24(2):146-148Zhang S Q,Pan Z J,Liu J H,et al.Quantitative eval-uation of carbonate reservoir[J].Xinjiang PetroleumGeology,2003,24(2):146-148
[15]季敏,魏建新,王尚旭.孔洞物理模型数据的地震响应特征分析[J].石油地球物理勘探,2009,44(2):196-200Ji M,Wei J X,Wang S X.Seismic response charac-teristics of caved physical modeling[J].Oil Geo-physical Prospecting,2009,44(2):196-200
[16]陈蕾,孙赞东,魏建新,等.从数值模型和物理模型研究溶蚀孔洞的可探测性[C]//地质地球物理综合研究中心第三届技术年会论文集.2010:261-270Chen L,Sun Z D,Wei J X,et al.Study on the detect-ability of dissolution cave using numerical and physi-cal models[R].Lab for Integration of Geology andGeophysics research reports(Vol 3),2010
[17]Li Y Y,Jonathan D.The applications of amplitudeversus offset in carbonate reservoirs:reexaminingthe potential[J].Expanded Abstracts of 70th AnnualInternat SEG Mtg,2000
[18]王保丽,印兴耀,张繁昌.弹性阻抗反演及应用研究[J].地球物理学进展,2005,20(1):89-92Wang B L,Yin X Y,and Zhang F C.Elastic imped-ance inversion and its application,progress in Geo-physics[J].Progress of Geophysics,2005,20(1):89-92
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