本文選題：多參數(shù)巖性反演 + 概率神經(jīng)網(wǎng)絡反演�。� 參考：《地球物理學進展》2016年03期

【摘要】：陽泉煤業(yè)集團五礦趙家分區(qū)水文地質(zhì)條件復雜,太原組K2灰?guī)r是15煤層上部的主要含水層.由于煤系地層構造復雜,陷落柱比較發(fā)育,因此查明K2灰?guī)r的空間展布和含水性,對于深部15煤層的安全開采具有重要意義.電磁勘探方法由于存在體積效應,很難準確預測K2灰?guī)r的空間展布和含水性.與正�；�?guī)r相比,含水灰?guī)r的波阻抗與視電阻率較小,且孔隙度較大.鑒于此,首先利用多參數(shù)巖性反演方法,獲得K2灰?guī)r的波阻抗信息;然后利用概率神經(jīng)網(wǎng)絡反演方法,獲得K2灰?guī)r的孔隙度和視電阻率信息;最后綜合波阻抗、孔隙度和視電阻率三種巖性信息,對K2灰?guī)r進行了含水性評價,為煤礦防治水提供了重要的水文地質(zhì)依據(jù).
[Abstract]:The hydrogeological conditions of Zhaojia subzone of Yangquan Coal Industry Group are complex, and the K _ 2 limestone of Taiyuan formation is the main aquifer in the upper part of No. 15 coal seam. Because the strata of coal measures are complicated and the collapse columns are relatively developed, it is of great significance to find out the spatial distribution and water-bearing capacity of K _ 2 limestone for the safe mining of deep 15 coal seams. Because of the volume effect, it is difficult to accurately predict the spatial distribution and water content of K _ 2 limestone. Compared with the normal limestone, the wave impedance and apparent resistivity of the hydrated limestone are smaller and the porosity is larger. In view of this, the wave impedance information of K _ 2 limestone is obtained by using multi-parameter lithology inversion method, and then the porosity and apparent resistivity information of K _ 2 limestone is obtained by using probabilistic neural network inversion method. Based on three lithological information of porosity and apparent resistivity, the water-bearing evaluation of K _ 2 limestone is carried out, which provides an important hydrogeological basis for water control in coal mines.
【作者單位】： 煤層氣資源與成藏過程教育部重點實驗室;中國礦業(yè)大學資源與地球科學學院;
【基金】：國家自然科學基金資助項目(u1261202;41430643)資助
【分類號】：P631.4;P641.4

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本文編號：2006409