地震解释中构造及其陷阱的识别方法

 为了准确地解释精细构造、研究地下的构造形态和分布，对构造图的准确度提出了更高的要求，构造图能否正确地体现地下的构造形态是识别地下构造形态的关键。本文提出用绝对值法则、“包”子原则快速判断构造图上是否存在构造陷阱。根据等值线的绝对值，在构造图上识别构造形态，找出构造高点；将得到的理论构造形态与实际的地震解释剖面对比，平、剖面相结合，验证解释结果的正确性，从而有效地识别构造陷阱。以某油田构造为例，利用法则快速区别了真假构造，剔除了构造陷阱，充分验证了法则的实用性，为快速合理地寻找圈闭提供了依据。

An Identification Method for Seismic Interpretation of Structures and Pitfalls

To accurately explain the fine structure and sort out the subsurface tectonic form and its distribution, the accuracy of the structure maps is a very essential factor, therefore, whether the structural map can correctly reflect the true subsurface tectonic form plays an important role in identifying the structure accurately under the ground. This paper proposes an absolute value rule and the "package" principle to identify tectonic form rapidly and accurately for the truth structure and structure pitfalls. First of all, on the basis of the absolute value of the contour line, the tectonic form is identified, and at the same time, the structural high points are found; secondly, the theoretical tectonic form is compared with the seismic cross section, combined with flat and profile, to verify the correctness of interpretation results; at the last, the structure pitfalls can be identified. With an oil field as an example, the principle is used to distinguish true and false structures, excluding the structural pitfalls, fully demonstrating the practicality of the principle. The research provides a reasonable basis for finding trap quickly and reasonably.