CAJ | 학술논문

随着勘探技术的发展及长庆油田油气需求量的增加，鄂尔多斯盆地地震勘探领域不断向复杂的区域（地表岩性复杂多变，地下构造复杂、隐蔽）延伸，油田开发对勘探精度也提出了更高的要求；从地震采集技术发展现状来看，高密度地震勘探就是解决复杂区域地层成像问题的有效手段。和常规的地震勘探强化单炮激发效果的设计理念相比，高密度采集要求激发和接收点都具有较高的空间采样密度，激发和接收环节都不再追求通过组合方式来压制噪音，提高信噪比；而是在激发环节尽可能模拟点震源激发，在接收环节能够接收到保幅保真无污染的真实信号，最终提高叠加剖面的信噪比。基于这些要求，主要研究高密度地震采集激发参数的设计思路和选取结果；通过具体试验、理论分析和统计学的方法来推导和论证高密度地震采集的激发参数。高密度激发参数在实际生产中应用之后，发现剖面的浅层信噪比明显好于常规剖面，取得了初步成效。
수착감탐기술적발전급장경유전유기수구량적증가，악이다사분지지진감탐영역불단향복잡적구역（지표암성복잡다변，지하구조복잡、은폐）연신，유전개발대감탐정도야제출료경고적요구；종지진채집기술발전현상래간，고밀도지진감탐취시해결복잡구역지층성상문제적유효수단。화상규적지진감탐강화단포격발효과적설계이념상비，고밀도채집요구격발화접수점도구유교고적공간채양밀도，격발화접수배절도불재추구통과조합방식래압제조음，제고신조비；이시재격발배절진가능모의점진원격발，재접수배절능구접수도보폭보진무오염적진실신호，최종제고첩가부면적신조비。기우저사요구，주요연구고밀도지진채집격발삼수적설계사로화선취결과；통과구체시험、이론분석화통계학적방법래추도화론증고밀도지진채집적격발삼수。고밀도격발삼수재실제생산중응용지후，발현부면적천층신조비명현호우상규부면，취득료초보성효。
With the development of exploration technology and the increase of oil and gas demand of Changqing oil-field,seismic exploration domain extends to complex area( surface lithology is complicated,complex and hidden underground structure),oilfield development also puts forward higher requirements for exploration precision;from the point of seismic acquisition technology development present situation,high-density seismic exploration is the effective means to solve the problem of complex regional strata imaging. Compared to the design concept of the con-ventional seismic strengthening record,high-density seismic exploration and the source effect of high density ac-quisition for source and receiver has higher spatial sampling density,source and receiving link is no longer the pur-suit of combination way to suppress noise,improve signal -to -noise ratio. But in source link simulation point source as far as possible,at the receiving link can receive the cover image fidelity real signal of pollution-free,e-ventually improve the signal-to-noise ratio of the stacking profile. Based on these requirements,this paper mainly studies high -density seismic acquisition parameters design and select the results;through concrete experiment, theoretical analysis and statistical methods to derivation and demonstration of high-density seismic acquisition pa-rameters. High density parameters applied in the actual production,found that the profile of shallow signal-to-noise ratio significantly better the conventional section,these method had achieved initial success.