【摘要】 煤与瓦斯突出是影响煤矿安全生产的重要地质因素,而"构造煤"的发育是煤与瓦斯突出的一个必要条件。如何识别"构造煤"分布范围对于采取煤与瓦斯突出防治措施尤为重要。淮北芦岭煤矿Ⅲ102、Ⅲ106采区构造发育,煤层破坏严重,煤与瓦斯突出的危害较大。该区的测井资料表明,其构造煤在波速、密度方面与原生结构煤均有较大差异,因此波阻抗有利于确定构造煤的分布范围。通过对研究区的地震数据进行井约束下的波阻抗反演,得到初始波阻抗体,并对其低频信息进行多次迭代反演,得到最终反演波阻抗体。通过对比解释研究区过井波阻抗反演时间剖面、8煤层反射波能量最大值及±10ms时窗的阻抗幅均方根平面图,有效划分出区内构造煤、原生结构煤及其过渡区。更多还原

【Abstract】 Coal and gas outburst is an important geological factor to impact coalmine safety in production, while the development of tectonoclastic coal is a prerequisite in coal and gas outburst. Thus how to identify tectonoclastic coal distribution range is particularly important in coal and gas outburst controlling measures adoption. Structures are well developed in winning districts Nos. III 102 and III106 of Luling coalmine in Huaibei caused coal seams seriously destructed and coal and gas outburst hazards. The well logging data in the area have shown that tectonoclastic coal and primary structure coal are different on aspects of wave velocity and density, so the wave impedance is propitious to determine tectonoclastic coal distribution range. Through study area seismic data well constrained wave impedance inversion, obtained initial wave impedance cube, then carried out multiple iterative inversions on its low frequency information, finally obtained inversion wave impedance cube. Through comparative interpretation of study area wave impedance inversion time section passing through wells, coal seam No.8 maximum reflection energy and 10 ms time window impedance amplitude root mean square plan divided tectonoclastic coal, primary structure coal and transition regions effectively.更多还原