针对岩性圈闭的正演照明采集参数优化设计
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摘要
针对老三维地震资料品质难以解决珠江口盆地惠州地区中浅层岩性复合圈闭的圈闭有效性、圈闭规模和多套砂体叠置的问题,开展针对目标的地震勘探采集参数优化设计以提升二次三维地震采集资料品质。首次提出针对岩性勘探应采用垂直于砂体展布方向采集的方案。首次在南海东部珠江口盆地惠州凹陷获得针对岩性勘探的"高分辨率和高密度"采集结果。通过该地区成功应用的实例证明方法的合理性,对后续针对岩性圈闭的采集参数设计具有非常重要的参考价值。
It is difficult to solve the problem of the lithological trap effectiveness, the scale of the lithological trap and the superimposition of multiple sets of sand bodies in the Hui zhou area of the Pearl river mouth basin(PRMB). Therefore, the seismic exploring design for the target was proposed to improve the quality of the twice 3 D seismic data acquisition. It is the first time that a design for lithological exploration should be collected vertically to the direction of sand body distribution. And it is the first time in the Huizhou sag of the PRMB in the eastern south China sea to obtain the result of " the high resolution and the high density" acquisition for lithological exploration. An example of successful application in the area shows that the forward model illumination exploring design for the lithological combination trap target is a good method, and it has very important reference value for subsequent design of acquisition parameters for lithological traps.
It is difficult to solve the problem of the lithological trap effectiveness, the scale of the lithological trap and the superimposition of multiple sets of sand bodies in the Hui zhou area of the Pearl river mouth basin(PRMB). Therefore, the seismic exploring design for the target was proposed to improve the quality of the twice 3 D seismic data acquisition. It is the first time that a design for lithological exploration should be collected vertically to the direction of sand body distribution. And it is the first time in the Huizhou sag of the PRMB in the eastern south China sea to obtain the result of " the high resolution and the high density" acquisition for lithological exploration. An example of successful application in the area shows that the forward model illumination exploring design for the lithological combination trap target is a good method, and it has very important reference value for subsequent design of acquisition parameters for lithological traps.
引文
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[12] 丁琳,张昌民,杜家元,等.珠江口盆地惠州凹陷珠江组K系列陆架砂脊沉积演化与成因[J].石油与天然气地质,2014,35(3):379-385.DING L, ZHANG C M, DU J Y, et al. Depositional evolution and genesis of K set of shelf sand ridges in the Zhujiang formation of Huizhou sag,Pear River Mouth Basin [J]. Oil & Gas Geology, 2014, 35(3): 379-385. (In Chinese)
[2] 易维启,董世泰,曾忠,等.地震勘探技术性与经济性策略考量[J].中国石油勘探,2013,18(4):19-25.YI W Q, DONG S T, ZENG Z, et al. Consideration of technical and economic strategy for seismic exploration [J]. China Petroleum Exploration,2013,18(4):19-25. (In Chinese)
[3] 汪恩华,赵邦六,王喜双,等.中国石油可控震源高效地震采集技术应用与展望[J].中国石油勘探,2013,18(5):24-34.WANG E H,ZHAO B L,WANG X S,et al. Application and outlook of vibroseis acquisition techniques with high efficiency of CNPC[J].China Petroleum Exploration,2013,18(5):24-34. (In Chinese)
[4] 王志亮,周滨,龚旭东,等.高密度高分辨地震勘探技术在渤海PL地区的应用[J].中国石油勘探,2013,18(2):37-44 .WANG Z L,ZHOU B,GONG X D,et al.Application of high-density and high-resolution seismic exploration technology for PL zone in Bohai sea[J].China Petroleum Exploration,2013,18(2):37-44. (In Chinese)
[5] 张军华,范腾腾,杨勇,等.永进油田西山窑组砂岩储层尖灭线的地震识别技术[J].石油物探,2016,55(2):261-270.ZHANG J H, FAN T T, YANG Y, et al. Seismic recognition techniques for sandstone reservoir pinch-out line in Xishanyao formation in Yongjin Oilfield [J]. Geophysical Prospecting for Petroleum,2016, 55(2): 261-270. (In Chinese)
[6] 苏朝光,闫昭眠,张营革,等.地层油藏超剥尖灭线夹角定量外推方法模拟研究[J].地球物理学进展,2007,22(6):1841-1846.SU C G, YAN Z M, ZHANG Y G, et al. The study of quantitive extrapolation model for overlap-denudation pitching-out line stratigraphic reservoir [J]. Progress in Geophysics,2007, 22(6): 1841-1846. (In Chinese)
[7] 凌云研究小组.应用振幅的调谐作用探测地层厚度小于1/4波长地质目标[J].石油地球物理勘探,2003,38(3):268-274.Ling Yun Research Group. Application of amplitude tuning in surveying geo-logic target thickness less than 1/4 wavelength [J]. Oil Geophysical Prospecting,2003, 38(3): 268-274. (In Chinese)
[8] 王志杰.东营凹陷小营油田沙二段砂体尖灭线地震描述技术[J].石油地球物理勘探,2012,47(2):305-308.WANG Z J. The seismic description technology of the sand body tip of the sand body in the small camp of Dong Ying sag [J]. Oil Geophysical Prospecting, 2012, 47(2): 305-308. (In Chinese)
[9] 段卫星,邸志欣,张庆淮,等.SK地区目标地震勘探采集设计技术及应用效果[J].石油地球物理勘探,2003,38(2):117-121.DUAN W X, DI Z X, ZHANG Q Z, et al. Design of object-orientedseismic acquisition technique and its application effects in SK area [J].Oil Geophysical Prospecting. 2003, 38(2): 117-121. (In Chinese)
[10] 乔宝平,胡天跃,冯玮,等.虚源成像观测系统设计方法[J].石油学报,2017,38(5):544-554.QIAO B P, HU T Y, FENG W, et al. Design method of observation system based on virtual-source imaging [J]. Acta Petrolei Sinica,2017, 38(5): 544-554. (In Chinese)
[11] 张光亚,马锋,梁英波,等.全球深层油气勘探领域及理论技术进展[J].石油学报,2015,36(9):1156-1166.ZHANG G Y, MA F, LIANG Y B, et al. Domain and theory-technology progress of global deep oil & gas exploration [J]. ActaPetroleiSinica,2015, 36(9):1156-1166. (In Chinese)
[12] 丁琳,张昌民,杜家元,等.珠江口盆地惠州凹陷珠江组K系列陆架砂脊沉积演化与成因[J].石油与天然气地质,2014,35(3):379-385.DING L, ZHANG C M, DU J Y, et al. Depositional evolution and genesis of K set of shelf sand ridges in the Zhujiang formation of Huizhou sag,Pear River Mouth Basin [J]. Oil & Gas Geology, 2014, 35(3): 379-385. (In Chinese)