泌阳凹陷古城—前杜楼三维地震采集方法研究
|
摘要
《泌阳凹陷古城-前杜楼三维地震采集方法研究》在分析研究泌阳坳陷古城-前杜楼地区以往的地震资料和地震采集方法的基础上,采用“论证-实测-再论证-再实测”的多次交互式三维观测系统设计方法,最终确定出最佳的障碍区炮检点位置,解决了大型城镇和大型水库炮检点布设难题,大大减少了剖面缺口。
利用大比例地图和构造图,进行基于地理信息和地质信息的采集方法研究,根据不同的勘探目标,采用多种观测系统渐变施工,既攻克了大障碍地区施工难题,又兼顾了该区目标层深浅变化快的特点,提高了采集质量。
新采集资料具有较高的信噪比和分辨率,地震主频达45赫兹以上。处理结果显示,分辨率明显提高,能够分辨20-30m的小断层,剖面能够准确、清楚的反映出该区的构造面貌;缺口深度≦0.3妙;保证了深层覆盖次数和浅层的连续性。同时为查清、落实凹陷西部的构造特征及沉积地层特征,开展储层的预测研究工作,寻找构造、岩性等隐蔽油气藏,奠定了坚实的基础。
Based on the analysis of Gucheng-Qiandulou area’s previous seismic data and its acquisition, this thesis utilized Multi-Interactive 3-D observation system designed through“Demonstration - Measurement - Re-demonstration - Re-measurement”and determined eventually the optimized shock measure points in the obstacle area; meanwhile, the difficult problem of shock measure points arrangement in a big town or a big water storage was solved and the profile gaps had also been minimized greatly.
Utilizing large-scale map and structure map, Research on the acquisition method based on geographic and geological information, using various observation systems to explore according to different exploration objects, this thesis not only solved the difficult problem of working in a big-obstacle area, but also enhanced the acquisition quality considering the characteristic of interested formation’s sharp change on depth in this area.
New data acquired have the higher Signal-to-Noise and higher resolution, and the seismic frequency reaches 45Hz. The result shows the following achievements: the data resolution has been improved obviously so that 20~30m faults can be differentiated, and sections can show the structure of this area clearly and exactly; gap depth is smaller than 0.3m, to ensures the overlapping times of deep intervals and the continuity of shallow intervals; it is also useful for making clear the characteristics of structure and sedimentary strata in west area of the Depression, useful for reservoir prediction, useful for finding covert reservoirs, such as structural and lithology reservoirs.
利用大比例地图和构造图,进行基于地理信息和地质信息的采集方法研究,根据不同的勘探目标,采用多种观测系统渐变施工,既攻克了大障碍地区施工难题,又兼顾了该区目标层深浅变化快的特点,提高了采集质量。
新采集资料具有较高的信噪比和分辨率,地震主频达45赫兹以上。处理结果显示,分辨率明显提高,能够分辨20-30m的小断层,剖面能够准确、清楚的反映出该区的构造面貌;缺口深度≦0.3妙;保证了深层覆盖次数和浅层的连续性。同时为查清、落实凹陷西部的构造特征及沉积地层特征,开展储层的预测研究工作,寻找构造、岩性等隐蔽油气藏,奠定了坚实的基础。
Based on the analysis of Gucheng-Qiandulou area’s previous seismic data and its acquisition, this thesis utilized Multi-Interactive 3-D observation system designed through“Demonstration - Measurement - Re-demonstration - Re-measurement”and determined eventually the optimized shock measure points in the obstacle area; meanwhile, the difficult problem of shock measure points arrangement in a big town or a big water storage was solved and the profile gaps had also been minimized greatly.
Utilizing large-scale map and structure map, Research on the acquisition method based on geographic and geological information, using various observation systems to explore according to different exploration objects, this thesis not only solved the difficult problem of working in a big-obstacle area, but also enhanced the acquisition quality considering the characteristic of interested formation’s sharp change on depth in this area.
New data acquired have the higher Signal-to-Noise and higher resolution, and the seismic frequency reaches 45Hz. The result shows the following achievements: the data resolution has been improved obviously so that 20~30m faults can be differentiated, and sections can show the structure of this area clearly and exactly; gap depth is smaller than 0.3m, to ensures the overlapping times of deep intervals and the continuity of shallow intervals; it is also useful for making clear the characteristics of structure and sedimentary strata in west area of the Depression, useful for reservoir prediction, useful for finding covert reservoirs, such as structural and lithology reservoirs.
引文
[1]谭绍泉。海上煤田高精度三维地震采集技术及应用效果[J]。石油地球物理勘探,2004,39(3)
[2] 李天树,陈宝德,苏德仁.双井微测井技术在表层结构调查中的应用.石油物探,2004
[3] 谭绍泉。海上煤田高精度三维地震采集技术及应用效果EJ]。石油地球物理勘探,2004,39(3):253~258
[4] 马在田编。三维地震勘探方法EM].北京:石油工业出版社,1989。60~70
[5] 熊翥。我国物探技术的进步及展望[J].石油地球物理勘探,2004,39(3):354~358
[6] 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EJ].石油地球物理勘探,2003,38(2):117～ 121
[7] 杨勤勇,徐丽萍。地震勘探技术新进展[J]。勘探地球物理进展,2002,25(1):5～10
[8]Cordsen A,Peirce J w。陆上三维地震勘探的设计与施工[M]。俞寿朋译。北京:石油地球物理勘探局,1996。16～ 45
[9] 周咸玉,任军战,朱艳保等.盆地边缘带优化观测系统采集技术探讨. 勘探地球物理进展,2005
[10]Andreas C,John wp.陆上三维地震勘探的设计与施工[M].俞寿朋等译.北京,石油工业出版社,1996
[11] 贾烈明,梁运基,李劲.炸药震源水中激发二次冲击的形成机制与消除方法. 石油天然气学报,2006
[12]陆基孟.地震勘探原理,石油大学出版社, 2004,北京
[13] 全海燕,韩立强. 海底电缆双检接收技术压制水柱混响. 石油地球物理勘探,2005
[14] 谢里夫R E,吉尔达特L P.勘探地震学[M].初英,李承楚,王宏伟等译.北京,石油工业出版社,1999.
[15] Andreas Cordsen, Mike Galbraith and John Peirce, Planning Land 3-D Seismic Surveys, Society of Exploration Geophysicists, Geophysical Developments Series No. 9,2002.89～120;
[16]宋玉龙,谭绍泉.胜利油田高精度地震勘探采集技术及应用实例.石油物探,2004,43(4):359~368
[17] 凌云等. 宽/窄方位角勘探实例分析与评价(一). 石油地球物理勘探,Vol.40,2005.3,305～308
[19] 吕公河. 高精度地震勘探采集技术探讨. 石油地球物理勘,Vol.40,2005.3,261～267
[20] 李桂林,陶宗普,陈春强等.陆上高分辨率地震勘探炸药震源激发条件分析.石油物探,2005,44(2):183～186;
[21]基于地球物理目标参数的三维观测系统优化设计,尹 成,吕公河等,石油物探,Vol.45,No.1,2006.1,74～78;
[2] 李天树,陈宝德,苏德仁.双井微测井技术在表层结构调查中的应用.石油物探,2004
[3] 谭绍泉。海上煤田高精度三维地震采集技术及应用效果EJ]。石油地球物理勘探,2004,39(3):253~258
[4] 马在田编。三维地震勘探方法EM].北京:石油工业出版社,1989。60~70
[5] 熊翥。我国物探技术的进步及展望[J].石油地球物理勘探,2004,39(3):354~358
[6] 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EJ].石油地球物理勘探,2003,38(2):117～ 121
[7] 杨勤勇,徐丽萍。地震勘探技术新进展[J]。勘探地球物理进展,2002,25(1):5～10
[8]Cordsen A,Peirce J w。陆上三维地震勘探的设计与施工[M]。俞寿朋译。北京:石油地球物理勘探局,1996。16～ 45
[9] 周咸玉,任军战,朱艳保等.盆地边缘带优化观测系统采集技术探讨. 勘探地球物理进展,2005
[10]Andreas C,John wp.陆上三维地震勘探的设计与施工[M].俞寿朋等译.北京,石油工业出版社,1996
[11] 贾烈明,梁运基,李劲.炸药震源水中激发二次冲击的形成机制与消除方法. 石油天然气学报,2006
[12]陆基孟.地震勘探原理,石油大学出版社, 2004,北京
[13] 全海燕,韩立强. 海底电缆双检接收技术压制水柱混响. 石油地球物理勘探,2005
[14] 谢里夫R E,吉尔达特L P.勘探地震学[M].初英,李承楚,王宏伟等译.北京,石油工业出版社,1999.
[15] Andreas Cordsen, Mike Galbraith and John Peirce, Planning Land 3-D Seismic Surveys, Society of Exploration Geophysicists, Geophysical Developments Series No. 9,2002.89～120;
[16]宋玉龙,谭绍泉.胜利油田高精度地震勘探采集技术及应用实例.石油物探,2004,43(4):359~368
[17] 凌云等. 宽/窄方位角勘探实例分析与评价(一). 石油地球物理勘探,Vol.40,2005.3,305～308
[19] 吕公河. 高精度地震勘探采集技术探讨. 石油地球物理勘,Vol.40,2005.3,261～267
[20] 李桂林,陶宗普,陈春强等.陆上高分辨率地震勘探炸药震源激发条件分析.石油物探,2005,44(2):183～186;
[21]基于地球物理目标参数的三维观测系统优化设计,尹 成,吕公河等,石油物探,Vol.45,No.1,2006.1,74～78;