三维地震精细处理解释技术在新元公司首采区的应用

摘要

In the wake of 3D seismic data processing and interpretation technology progress, the new techniques such as high-precision statics, prestack time migration, and attribute volume interpretation have been widely applied. Taking the west limb first mining area of Xinyuan coalmine, Yangquan Coal Industry Group as an example, using the fine processing and interpretation technology carried out previously collected primary data secondary processing and interpretation in the area. The secondary interpretation confirmed only 2 faults and 6 subsided columns;denied 11 faults and 2 subsided columns formerly interpreted;newly interpreted 19 subsided columns. The analysis considered that the original error firstly is from interpretation ambiguity, then data cognitive error, and the third is process-ing meticulous degree and limited technical level. The example has shown that the fine processing technology can promote vertical and horizontal resolution and fidelity of 3D seismic data;ensure interpreted results more actually reflect coalmine underground geological structure features.%随着三维地震资料处理和解释技术的进步,诸如高精度静校正、叠前时间偏移、属性体解释等新技术得到了广泛的应用.以阳煤集团新元矿井西翼首采区为例,利用精细处理与解释技术,对该区以前采集的原始数据进行了二次处理解释.二次解释只确认了原解释的2条断层、6个陷落柱,否定了11条断层、2个陷落柱,新解释又增加了19个陷落柱.分析认为造成原有解释误差的原因一是存在多解性,二是对资料的认知失误,三是处理细致程度及处理技术水平所限.该实例表明精细处理技术,可使三维地震资料的纵、横向分辨率和保真度得到提高,保证资料解释成果更加真实地反映煤矿地下的地质构造特征.