滴西火山岩区地震成像关键技术
|
摘要
新疆滴西火山岩气藏油气资源丰富,但地表条件复杂、地下火山岩储层埋藏深、内幕结构复杂、非均质性强,原始地震数据品质差,静校正问题突出,速度分析困难,火山岩精细成像难度大。应用GeoEast处理系统建立了能满足滴西火山岩成像需求的地震数据处理流程:通过双尺度层析反演静校正和地表一致性剩余静校正方法结合解决突出的静校正问题;通过精细叠前预处理获得高品质的叠前地震数据;通过井控扫描速度分析获得高精度的地震成像速度。最终获取了高质量的成像成果,为火山岩储层预测提供了可靠的数据基础。
Volcanic reservoirs in the Dixi area are quite rich in oil and gas resources. However they are characterized by complex near-surface structure,deep burying, complicated internal structures, and strong heterogeneity. Seismic imaging in the area faces serious problems such as static corrections,low-quality data, and difficult velocity analysis. In order to obtain exact volcanic reservoir imaging, we propose a new data processing strategy: solving serious statics problem with the dual-scale tomography inversion and the surface-consistent residual static corrections, obtaining high quality prestack data for seismic imaging with fine data preprocessing, gaining accurate velocity with well-controlled scanning velocity analysis. Finally, highquality seismic imaging is achieved for volcanic reservoir prediction.
Volcanic reservoirs in the Dixi area are quite rich in oil and gas resources. However they are characterized by complex near-surface structure,deep burying, complicated internal structures, and strong heterogeneity. Seismic imaging in the area faces serious problems such as static corrections,low-quality data, and difficult velocity analysis. In order to obtain exact volcanic reservoir imaging, we propose a new data processing strategy: solving serious statics problem with the dual-scale tomography inversion and the surface-consistent residual static corrections, obtaining high quality prestack data for seismic imaging with fine data preprocessing, gaining accurate velocity with well-controlled scanning velocity analysis. Finally, highquality seismic imaging is achieved for volcanic reservoir prediction.
引文
[1]邹才能,赵文智,贾承造等.中国沉积盆地火山岩油气藏形成与分布.石油勘探与开发,2008,35(3):257-270.Zou Caineng,Zhao Wenzhi,Jia Chengzao et al.Formation and distribution of volcanic hydrocarbon reservoirs in sedimentary basins of China.Petroleum Exploration and Development,2008,35(3):257-270.
[2]宋吉杰.松辽盆地北部兴城地区火山岩地震预测.石油地球物理勘探,2007,42(3):315-317.Song Jijie.Seismic prediction of volcanite in Xincheng area of northern part of Songliao basin.OGP,2007,42(3):315-317.
[3]陆宝立,任玉洪,刘行扶等.松辽盆地南部哈尔金地区火山岩储层综合预测.石油地球物理勘探,2009,44(4):466-471.Lu Baoli,Ren Yuhong,Liu Xingfu et al.Integrative prediction of volcanite reservoir in Haerjin area ofsouth Songliao Basin.OGP,2009,44(4):466-471.
[4]郎晓玲,韩龙,王世瑞等.X B地区火山岩岩相划分及储层精细刻画.石油地球物理勘探,2010,45(2):272-277.Lang Xiaoling,Han Long,Wang Shirui et al.Lithofacies classification and reservoir delineation for volcanic rock in XB area.OGP,2010,45(2):272-277.
[5]李明,邹才能,刘晓等.松辽盆地北部深层火山岩气藏识别与预测技术.石油地球物理勘探,2002,37(5):477-484.Li Ming,Zou Caineng,Liu Xiao et al.Identifying and predicting technology of deep volcanics gas reservoir in north of Songliao basin.OGP,2002,37(5):477-484.
[6]金春爽,乔德武,淡伟宁.渤海湾盆地中新生代火山岩分布及油气藏特征.石油与天然气地质,2012,33(1):19-27.Jin Chunshuang,Qiao Dewu,Dan Weining,Meso-Cenozoic volcanic rock distribution and reservoir characteristics in the Bohai Bay Basin.Oil and Gas Geology,2012,33(1):19-27.
[7]王洛,李江海,师永民等.准噶尔盆地滴西地区石炭系火山岩储集性能分布规律研究,岩石学报,2016,32(3):877-891.Wang Luo,Li Jianghai,Shi Yongmin et al.Study on distribution patterns of reservoir property of Carboniferous volcanic rocks in Dixi area,Junggar Basin.Acta Petrologica Sinica,2016,32(3):877-891.
[8]王仁冲,徐怀民,李林等.用地震方法研究滴西地区石炭系火山岩储集层.新疆石油地质,2009,30(1):49-52.Wang Renchong,Xu Huaimin,Li Lin et al.Using seismic methods for study of volcanic reservoir of Carboniferous in Dixi area,Junggar Basin.Xinjiang Petroleum Geology,2009,30(1):49-52.
[9]曾庆才,曾同生,欧阳永林等.复杂山地层析反演静校正新方法及应用.石油地球物理勘探,2017,52(3):418-425.Zeng Qingcai,Zeng Tongsheng,Ouyang Yonglin et al.A new tomographic inversion for static corrections in complex mountain areas.OGP,2017,52(3):418-425.
[10]张惠珍,王山山,马良.混沌遗传算法——一种用于油气预测的新方法.石油地球物理勘探,2006,41(6):651-655.Zhang Huizhen,Wang Shanshan,Ma Liang.Chaos genetic algorithm—a new approach used in prediction of oil/gas reservoir.OGP,2006,41(6):651-655.
[11]刘玉柱,董良国,夏建军.初至波走时层析成像中的正则化方法.石油地球物理勘探,2007,42(6):682-685.Liu Yuzhu,Dong Liangguo,Xia Jianjun.Normalized approach in tomographic imaging of first breaks travel time.OGP,2007,42(6):682-685.
[12]刘伊克,郝天珧,王超.油气二次运移的LSQR迭代多重网格法及其应用.石油地球物理勘探,1998,33(2):244-250.Liu Yike,Hao Tianyao,Wang Chao.LSQR iterative multigrid method for secondary hydrocarbon migration and its application.OGP,1998,33(2):244-250.
[13]吕牛顿.连续介质中任意炮检距的球面扩散补偿因子.石油物探,1986,25(2):7-12.LüNiudun.Compensation factor of spherical diffusion with arbitrary offsets in continuous medium.GPP,1986,25(2):7-12.
[14]张军华,王静,郑旭刚.关于几种速度分析方法的讨论及效果分析.石油物探,2009,48(4):347-353.Zhang Junhua,Wang Jing,Zheng Xugang.Discussion and result analysis on several velocity analysis methods.GPP,2009,48(4):347-353.
[15]熊晶璇,张华,李振等.百分比速度扫描剖面在速度提取中应用.物探化探计算技术,2015,37(3):355-360.Xiong Jingxuan,Zhang Hua,Li Zhen et al.Application of percentage velocity scanning stack in the velocity extraction.Computing Techniques for Geophysical and Geochemiccal Exploration,2015,37(3):355-360.
[2]宋吉杰.松辽盆地北部兴城地区火山岩地震预测.石油地球物理勘探,2007,42(3):315-317.Song Jijie.Seismic prediction of volcanite in Xincheng area of northern part of Songliao basin.OGP,2007,42(3):315-317.
[3]陆宝立,任玉洪,刘行扶等.松辽盆地南部哈尔金地区火山岩储层综合预测.石油地球物理勘探,2009,44(4):466-471.Lu Baoli,Ren Yuhong,Liu Xingfu et al.Integrative prediction of volcanite reservoir in Haerjin area ofsouth Songliao Basin.OGP,2009,44(4):466-471.
[4]郎晓玲,韩龙,王世瑞等.X B地区火山岩岩相划分及储层精细刻画.石油地球物理勘探,2010,45(2):272-277.Lang Xiaoling,Han Long,Wang Shirui et al.Lithofacies classification and reservoir delineation for volcanic rock in XB area.OGP,2010,45(2):272-277.
[5]李明,邹才能,刘晓等.松辽盆地北部深层火山岩气藏识别与预测技术.石油地球物理勘探,2002,37(5):477-484.Li Ming,Zou Caineng,Liu Xiao et al.Identifying and predicting technology of deep volcanics gas reservoir in north of Songliao basin.OGP,2002,37(5):477-484.
[6]金春爽,乔德武,淡伟宁.渤海湾盆地中新生代火山岩分布及油气藏特征.石油与天然气地质,2012,33(1):19-27.Jin Chunshuang,Qiao Dewu,Dan Weining,Meso-Cenozoic volcanic rock distribution and reservoir characteristics in the Bohai Bay Basin.Oil and Gas Geology,2012,33(1):19-27.
[7]王洛,李江海,师永民等.准噶尔盆地滴西地区石炭系火山岩储集性能分布规律研究,岩石学报,2016,32(3):877-891.Wang Luo,Li Jianghai,Shi Yongmin et al.Study on distribution patterns of reservoir property of Carboniferous volcanic rocks in Dixi area,Junggar Basin.Acta Petrologica Sinica,2016,32(3):877-891.
[8]王仁冲,徐怀民,李林等.用地震方法研究滴西地区石炭系火山岩储集层.新疆石油地质,2009,30(1):49-52.Wang Renchong,Xu Huaimin,Li Lin et al.Using seismic methods for study of volcanic reservoir of Carboniferous in Dixi area,Junggar Basin.Xinjiang Petroleum Geology,2009,30(1):49-52.
[9]曾庆才,曾同生,欧阳永林等.复杂山地层析反演静校正新方法及应用.石油地球物理勘探,2017,52(3):418-425.Zeng Qingcai,Zeng Tongsheng,Ouyang Yonglin et al.A new tomographic inversion for static corrections in complex mountain areas.OGP,2017,52(3):418-425.
[10]张惠珍,王山山,马良.混沌遗传算法——一种用于油气预测的新方法.石油地球物理勘探,2006,41(6):651-655.Zhang Huizhen,Wang Shanshan,Ma Liang.Chaos genetic algorithm—a new approach used in prediction of oil/gas reservoir.OGP,2006,41(6):651-655.
[11]刘玉柱,董良国,夏建军.初至波走时层析成像中的正则化方法.石油地球物理勘探,2007,42(6):682-685.Liu Yuzhu,Dong Liangguo,Xia Jianjun.Normalized approach in tomographic imaging of first breaks travel time.OGP,2007,42(6):682-685.
[12]刘伊克,郝天珧,王超.油气二次运移的LSQR迭代多重网格法及其应用.石油地球物理勘探,1998,33(2):244-250.Liu Yike,Hao Tianyao,Wang Chao.LSQR iterative multigrid method for secondary hydrocarbon migration and its application.OGP,1998,33(2):244-250.
[13]吕牛顿.连续介质中任意炮检距的球面扩散补偿因子.石油物探,1986,25(2):7-12.LüNiudun.Compensation factor of spherical diffusion with arbitrary offsets in continuous medium.GPP,1986,25(2):7-12.
[14]张军华,王静,郑旭刚.关于几种速度分析方法的讨论及效果分析.石油物探,2009,48(4):347-353.Zhang Junhua,Wang Jing,Zheng Xugang.Discussion and result analysis on several velocity analysis methods.GPP,2009,48(4):347-353.
[15]熊晶璇,张华,李振等.百分比速度扫描剖面在速度提取中应用.物探化探计算技术,2015,37(3):355-360.Xiong Jingxuan,Zhang Hua,Li Zhen et al.Application of percentage velocity scanning stack in the velocity extraction.Computing Techniques for Geophysical and Geochemiccal Exploration,2015,37(3):355-360.