3D Seismic Technology In Ningdong Coalfield Of Ningxia Application Of Exploration In Jijiajing Mining Area

Ningxia Ningdong coal base is listed as one of the "14" coal bases in the key development and construction by the state because of its rich coal resources and reserves.Jijiajing mining area is an important part of Ningdong coal base.In order to meet the development planning and production continuity of coal mine,it is necessary to carry out 3D seismic exploration in this area.Based on the 3D seismic exploration work carried out in a coal mine of Jijiajing mining area in Ningdong coalfield,the following main achievements and understandings have been achieved in seismic data acquisition,data processing and data interpretation:1.The 3D seismic exploration parameters of the study area are determined and applied in the Jijiajing mining area of Ningdong,Ningxia.2.Three dimensional seismic exploration data processing process and parameter selection are reasonable.The combination of conventional post stack migration and prestack time migration is adopted,and two migration results are obtained.The processing results of two different data volumes are integrated,and different data volumes are adopted for different geological conditions,which provides guarantee for the later fine interpretation.3.The faults in the main mineable coal seams in the study area are inferred and predicted,the structural map of the main mineable coal seams is compiled,the hidden coal seam outcrop position of the main minable coal seams is delineated,and the thickness variation trend of the main minable coal seams is predicted.This work fully demonstrates the advantages of 3D seismic exploration technology in coal geological exploration,and provides necessary technical guidance for Ningdong coalfield to carry out coal seam detection and structural division by using seismic exploration.