复杂山区三维地震勘探采集参数研究

Study on acquisition parameters of 3D seismic exploration in complex mountainous area

地震试验是采集过程中的必要环节,是确定采集参数的重要依据。合理的采集参数是取得高品质原始资料的首要条件。本文以勘探区的实际地质条件为基础,划分了基岩区和黄土区两类激发区域。鉴于此,笔者选取了两个典型的试验点,按照单因素的原则,对激发井深和激发药量进行试验,获得了适合勘探区的采集参数。经过实际的施工验证,使用该参数能够取得较好的采集效果。

Seismic test is a necessary step in the acquisition process and an important basis for determining acquisition parameters. Reasonable acquisition parameter is the first condition for obtaining high quality raw data. Based on the actual geological conditions of the exploration area, the two types of excitation areas in bedrock and loess areas are divided. In view of this, the author selects two typical test points, then according to the principle of single factor,tests the depth of the excited well and the amount of excitation, at last obtains the acquisition parameters suitable for the exploration area. Through the actual construction verification, the use of this parameter can achieve better acquisition results.