CAJ | 학술논문

三维地震资料能够识别的陷落柱大小与三维地震横向分辨率密切相关，在三维数据体中，三维偏移剖面的最佳水平分辨率取决于反射界面的平均速度及零相位子波的中心频率。为验证三维地震资料分辨陷落柱最小直径的能力，设计了9个直径从30 m到100 m不等、影响深度不同的陷落柱模型，其波动方程正演结果表明：陷落柱直径大小、垮塌高度都对地震反射波产生影响，进而影响到地震解释陷落柱的精度；陷落柱的直径与垮塌高度越大，则其在地震剖面上的反映越明显，反之则不易识别。并通过煤矿采区三维地震勘探技术应用实例，展示了常规三维地震解释技术结合方差、曲率等多属性综合分析技术在识别煤层陷落柱的有效性。
삼유지진자료능구식별적함락주대소여삼유지진횡향분변솔밀절상관，재삼유수거체중，삼유편이부면적최가수평분변솔취결우반사계면적평균속도급령상위자파적중심빈솔。위험증삼유지진자료분변함락주최소직경적능력，설계료9개직경종30 m도100 m불등、영향심도불동적함락주모형，기파동방정정연결과표명：함락주직경대소、과탑고도도대지진반사파산생영향，진이영향도지진해석함락주적정도；함락주적직경여과탑고도월대，칙기재지진부면상적반영월명현，반지칙불역식별。병통과매광채구삼유지진감탐기술응용실례，전시료상규삼유지진해석기술결합방차、곡솔등다속성종합분석기술재식별매층함락주적유효성。
The magnitude of subsided column can be identified through 3D seismic data is closely related to 3D seismic transverse reso?lution. In 3D data volume, the optimum horizontal resolution of 3D migration section rests with reflecting interface average velocity and zero phase wavelet center frequency. To validate capacity of 3D seismic data differentiate subsided column minimum diameter, have de?signed 9 subsided columns with different diameters from 30m to 100m, and different impacting depths. The wave equation forward re?sults have shown that the size (diameter) of subsided column and collapsed height will impact seismic reflection, and then impact sub?sided column seismic interpreted accuracy. The larger subsided column diameter and collapsed height, will produced the more obvious image on seismic section;on the contrary, not easy to identify. Through coalmine winning district 3D seismic prospecting case studies, have illustrated the effectiveness of conventional 3D seismic interpretation technology combined with multi-attribute integrated analyti?cal technology including variance, curvature etc. in coal seam subsided column identification.