黔南碳酸盐岩地震“亮点”、“平点”与“暗点”分析
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摘要
黔南海相沉积地区,在可控震源与炸药震源的地震普查勘探中,地震反射剖面上,出现的振幅异常,有“亮点”、“平点”与”暗点”显示。研究认为:“亮点”可能为油气层的显示;“平点”可能是含气储层与不含气层之间形成的波阻抗界面;“暗点”可能为岩性变化的层间反射。
The amplitude anomalies on reflection profile generated from controllably explosive source in southern Guizhou which represents a marine sedimentary environment indicate thebright, faded and darken spots. The inter'Pretation of these spots may imply that there is presence ofoil and gas reservoirs marked by the bright spots. The faded Spots might reflect a wave impedance interface between gas reservoirs and non-gas-bearing beds, whereas the darken spotS reveal the interlayer reflection caused by a shift in lithology.
引文
1泰秉让编译.地层圈闭的地震勘探.石油物探译丛,1986,(6).
    2 J.D.Robertson and others.Direct hydrocarbon detction using compantive Pwave and S-wave seismic sections. Geo- physics,1985t 50(3):383~393
    3 H Almoghrabi and others.Layers & bright spots.Geophysics,1986,51(3):699-709.
    4秦秉让黔南海相碳酸盐岩沉积区地震勘探技术获重大突破海相沉积区油气地质,1989.2(2).
    5陈兴树贵州地区石油地震勘探简介.海相沉积区油气地质,1989.3(2).
    6赵恩纯,于占元海相碳酸岩”山区地震勘探方法与效果.石油物探,1990,29(1):1—18.
    7秦秉让.试论贵州煤层气的勘探前景天然气工业,1984.4(2):13—19.

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