障碍物密集区三维地震勘探施工方法

Construction method of three-dimensional seismic exploration in obstacles concentration areas

在障碍物密集区进行三维地震勘探,由于城镇、村庄、厂矿企业、铁路遍布测区,障碍物占整个施工面积的50%以上,激发点和接收点布设困难,难以获得地下资料.如何在这样的测区取得高质量地震资料是一个技术难题.需要从设计到施工的全面配合.本文以江苏某区为例说明了在障碍物密集区取得高质量地震资料的设计手段和施工措施.深入讨论了障碍物密集区三维地震施工的方法对策,并概括说明施工方法对后续处理解释的影响和结果.利用这些手段和措施在该区获得了比较满意的地震资料.从而对破解这一难题做出了有益的探索.

At present, the obstacles concentration areas for 3 d seismic exploration, because of the towns, villages, factories and mines enterprises, railway around the measurement area, the obstacles of the total construction area of more than 50%, shot point and acceptance point setting difficult, difficult to get information underground. How the area to get high quality seismic data in this test is a technical problem. Need full cooperation from design to construction. Taking jiangsu district as an example illustrates the high quality seismic data obtained in obstacles concentration areas design methods and construction measures. Deeply discussed the obstacles concentration areas the construction method of 3d seismic countermeasures, and summarize the construction methods for subsequent processing and interpretation and the influence of the results. Use of these means and measures obtained satisfactory seismic data in this area. Which made a beneficial exploration to solve this difficult problem. In this area has important theoretical and practical significance.