泌阳凹陷王集-新庄地区高精度三维地震勘探技术与效果
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摘要
针对泌阳凹陷王集-新庄地区构造复杂、目的层埋藏浅、断块发育的特点,在勘探中运用采集、处理、解释一体化工作模式:在采集方面通过精细表层结构调查、小面元观测系统论证、高密度物理点激发、逐点设计井深,取全取准了地下信息;在处理上采用基于精细切除、浅层静校和叠前去噪的叠前偏移成像处理技术,提高了地震资料的成像精度;解释方面采用了三维可视化和相干数据体联合手段,通过精细成图,搞清了泌阳凹陷王集-新庄地区复杂断块圈闭,通过钻探发现了新的含油断块。
In allusion to the characteristics of complex structure, shallow burial of target zones and fault block growth in Wangji-Xinzhuang Area of Biyang Depression, the integrated mode of data acquisition, processing and interpretation was used in exploration, that is, a fine surface structure was investigated in data acquisition, it was proven by using small bin observation system, excited by using high density physical points, well depth was designed point by point, therefore seismic data were acquired completely and accurately. As for data processing, the imaging precision was greatly enhanced on the basis of fine resection, shallow static calibration and prestack noise suppression. The combining method of 3D visualization and coherent data volume are used for clarifying the structure of complex fault block in Wangji-Xinzhuang Area of Biyang depression, new oil-bearing fault blocks are discovered through drilling in the end.
In allusion to the characteristics of complex structure, shallow burial of target zones and fault block growth in Wangji-Xinzhuang Area of Biyang Depression, the integrated mode of data acquisition, processing and interpretation was used in exploration, that is, a fine surface structure was investigated in data acquisition, it was proven by using small bin observation system, excited by using high density physical points, well depth was designed point by point, therefore seismic data were acquired completely and accurately. As for data processing, the imaging precision was greatly enhanced on the basis of fine resection, shallow static calibration and prestack noise suppression. The combining method of 3D visualization and coherent data volume are used for clarifying the structure of complex fault block in Wangji-Xinzhuang Area of Biyang depression, new oil-bearing fault blocks are discovered through drilling in the end.
引文
[1]邱荣华,李连生,张永华.泌阳凹陷北部斜坡带油气富集控制因素与勘探技术[J].石油天然气学报,2006,28(2):39～41.
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[4]Komatitsch D,Tromp J.Spectral-element si mulations of global seismic wave propagation——Ⅱ:three di mensional models,oceans,rotation and self-gravitation[J].Geophys.J.Int,2002,150:303～318.
[5]余功铭,张永华,梁运基.复杂断裂构造带三维地震勘探技术及效果[J].新疆石油地质,2007,28(1):101～104
[2]Sun Ch,Martinez R D.Amplitude preservingV(z)prestack Kirchhoff ti me migration for VTI media[J].First Break,2001,19:618～624.
[3]Wu R S,Chen L.Directional illumination analysis using beamlet decomposition and propagation[J].Geophysics,2006,71(4):147～159.
[4]Komatitsch D,Tromp J.Spectral-element si mulations of global seismic wave propagation——Ⅱ:three di mensional models,oceans,rotation and self-gravitation[J].Geophys.J.Int,2002,150:303～318.
[5]余功铭,张永华,梁运基.复杂断裂构造带三维地震勘探技术及效果[J].新疆石油地质,2007,28(1):101～104
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