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包尔海地区二维高分辨率地震剖面显示了丰富的不整合、同相轴下拉、尖灭以及前积等地震信息。本文就如何根据这些剖面显示信息进行地质层位标定以及小层的岩性特征标定,然后精细解释并利用计算机成图进行阐述。这一方法不仅可以描述单一层位在目的层段的构造特征,而且把几个标定好的小层选合在一起可以分析确定几个目的层段的最佳构造位置,从而达到井位确定的目的。该方法在焉者盆地包尔海地区地层岩性不整合目的层段井位的确定中,显示了一定的优势。
The 2-D high-resolution seismic profiles in the Baolhai area show rich unconformities, seismic events such as pull-down, pinch-out, and forerunner. In this paper, how to calibrate the geologic horizon and calibrate the lithology characteristics of the lithosphere according to the information displayed in these sections, and then elaborate and make use of computer graphics to elaborate. This method can not only describe the tectonic characteristics of a single horizon in the target horizon, but also combine several well-defined small horizon to analyze and determine the optimal tectonic positions of several target intervals so as to reach the well-defined purpose. This method shows some advantages in the determination of the wellbore location in stratigraphic lithology unconformity in Baoerhai area in Yanziyan Basin.