复杂山地湘鄂西1区块二维地震采集方法

2-D Seismic Acquisition Method Research for the Complex Mountain Area in the First Block of Western Hubei and Hunan

湘鄂西的恩施地区地形复杂,在地震资料采集方面存在灰岩激发条件差,采集有难度以及剖面局部连续性差,资料信噪比低等技术难点。可以通过点试验的方法来确定激发参数并优选激发参数和观测系统,从而提高地震剖面的信噪比和成像效果,有利于地质解释和后期的石油勘探。

Enshi area of Western Hubei and Hunan has the complex terrain. Seismic data acquires with a lot of diffi- culties, such as bad limestone excitation condition, terrible acquisition environment, poor profile local continuity and low signal--to--noise ratio. This paper uses the method of point test to optimize and determine the excitation param- eters and the observation system, so the signal-- to-- noise ratio of seismic data and imaging effect is improved, which is helpful for geological interpretation and oil exploration.