东濮凹陷富油气区带高精度三维地震实践与认识
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摘要
东濮凹陷是一个经过了30多年勘探开发的老油区。目前的勘探开发对象主要是复杂断块油气藏,其特点是断块小而碎、断面倾角大及含油高度小,这对地震勘探的精度提出了越来越高的要求。为了满足勘探开发的需求,结合物探技术的发展趋势,借鉴国内外先进经验,确立了以高精度三维解决复杂断块难题的技术突破方向。经过技术攻关,初步探索出了一套高精度三维地震勘探的实现方法。通过在马厂、桥口等地区的实践,见到了良好效果,证明了高精度三维地震勘探技术是解决复杂断块勘探开发难题的有效途径,有着广泛而重要的推广应用价值。
Dongpu sag is a sophisticated oilfield which has been explored and developed for 30 years.At present,complex fault-block reservoirs are the major target for exploration and development,of which the fault blocks are small and cracked,the fault plane is steep,and oil column thickness is small.All the features require more accurate seismic exploration.To meet the requirements of exploration and exploitation,combined with the trends of geophysical technology,we shall learn from the relevant advanced techniques both at home and abroad and focus on high precision 3D seismic techniques to tackle the imaging problems in complex fault-block reservoirs.Finally,a series of techniques are developed to implement high precision 3D seismic exploration.The application of the techniques in the areas such as Machang and Qiaokou shows that they are effective in solving the exploration and development problems in complex fault-block areas,and are valuable to be more widely applied in the same problematic area.
Dongpu sag is a sophisticated oilfield which has been explored and developed for 30 years.At present,complex fault-block reservoirs are the major target for exploration and development,of which the fault blocks are small and cracked,the fault plane is steep,and oil column thickness is small.All the features require more accurate seismic exploration.To meet the requirements of exploration and exploitation,combined with the trends of geophysical technology,we shall learn from the relevant advanced techniques both at home and abroad and focus on high precision 3D seismic techniques to tackle the imaging problems in complex fault-block reservoirs.Finally,a series of techniques are developed to implement high precision 3D seismic exploration.The application of the techniques in the areas such as Machang and Qiaokou shows that they are effective in solving the exploration and development problems in complex fault-block areas,and are valuable to be more widely applied in the same problematic area.
引文
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[2]邱毅,魏振乾,刘章造,等.华北油田高精度三维地震采集技术[J].中国石油勘探,2008,13(2):21～28.
[3]渥.伊尔马滋.地震数据处理[M].黄绪德,袁明德,译.北京:石油工业出版社,1994.
[4]Biondo L.Biondi.3D seismic imaging.Stanford university,2003.
[5]G.J.O.Vermeer,程前进.三维对称采样[J].勘探地球物理进展,1995,(6):21～25.
[6]Gijis J.O.Vermeer.3D seismic survey design.Geophysical References Series.No.12.Society of Exploration Geophysicists,2002.
[7]钱荣钧.关于地震采集空间密度和均匀性分析[J].石油地球物理勘探,2007,42(2):235～243.
[8]Andeas Cordsen,Mike Galbraith,John Peirce.Planning Land3-D Seismic Surveys.Geophysical Developments Series.No.9.Society of Exploration Geophysicists,2000.
[9]Andreas Cordsen.Arrangement of source and receiver lines for3D seismic data acquisition.US patent No.5402391,1995.
[10]乔大军,孟祥顺,张玉斌,等.检波器的联接方式对地震资料品质的影响[J].石油地球物理勘探,2001,36(6):723～728.
[11]杨菊兰,常毓文,胡丹丹.渤海湾盆地断块油气藏分布与滚动勘探方法[J].中国石油勘探,2008,13(5):7～14.
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