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应用地震层序地层分析方法对绥滨坳陷进行了层序地层识别,在绥滨坳陷选择了7条主干地震测线(剖面)来进行层序地层解释。结果是,发育的8个三级层序(sq1~sq8)在绥滨坳陷主干地震剖面呈横向分布。其中,过滨参1井的南北向269测线(剖面)发育Sq7以下层序;过滨参1井的近东西向44测线(剖面)sq7和sq8层序向上逐渐被削掉;工区南部的近东西向40测线(剖面)sq5到sq8层序向上逐渐被削掉;工区西南部的近南北向256测线(剖面)和工区西北部的近南北向268测线(剖面)各层序之间具有明显的旋回性;工区中部的近东西向68测线(剖面)从sq1到sq8没有明显的层位缺失;工区中部的近南北向280.5测线(剖面)地震发射特征不明显,但仍可进行层序划分和对比。为绥滨坳陷提供了最有利勘探区带。
Seismic sequence stratigraphic analysis method was applied to sequence stratigraphic identification of Suibin Depression. Seven main seismic lines (sections) were selected to interpret sequence stratigraphy in Suibin Depression. As a result, the eight tertiary stratigraphic sequences (sq1-sq8) developed laterally in the main seismic section of the Suibin Depression. Among them, the sequence of Sq7 and below is developed along the line 269 of the well B-1 in the north-south direction; the sequence of lines Sq7 and Sq8 in the EW-44 line (section) of the well B11 was gradually shaved off; (Section) of the line from Sq5 to Sq8 in the near east-west direction; the near-north-south 256 line (section) in the southwestern part of the work area and the near-north-northbound 268 line (section) in the northwest of the work area There is no obvious lacustrine layer from sq1 to sq8 in the near east-west 68 survey line in the central part of the work area; the seismic emission characteristics near the north-south 280.5 line (section) in the central part of the work area are not obvious, But still can be divided and contrast. Providing the most favorable exploration zone for the Suibin Depression.