【摘要】 地震勘探中,在满足地下探测目标要求的前提条件下,结合地表地貌及地质情况,选择较好的测线部署方案是取得较好资料的基础。为使高陡山地及低信噪比地区地震测线部署方案有利于地震实施、激发和接收,通过在复杂地表地震工区的探索、研究和实践,建立了基于遥感信息的测线评价与半自动优选方法。该方法利用从遥感信息中提取的DEM(数字高程模型)、坡度、相对湿度、地表糙度、岩性等信息对测线位置的可实施性、激发与接收条件进行评价,能够从根据原始测线部署产生的待选测线中优选出较佳的地震测线部署方案。在塔里木西秋里塔格探区的应用证实,该方法能改善测线的采集条件与可实施性,进而改善资料品质并降低勘探成本。图7参14更多还原

【Abstract】 For seismic exploration,it is the basis for better data acquisition to select better line layout in line with morphosequent and geologic conditions,provided that the objective of underground exploration is met.To ensure that the seismic line layout in areas with high-steep mountains and low signal-noise ratio is helpful for the seismic execution,launching and receiving,a line assessment and semi-automatic optimization method was defined on the basis of remote sensing information through exploitation,study and practices in complex-surface seismic area.The method is used to evaluate the applicability and launching and receiving conditions at line positions with such information as digital elevation model(DEM),slope,relative humidity,surface roughness and lithology,so as to select the better layout from optional seismic lines generated from the original seismic layout.The application in the Qiulitage exploration area in the west of Tarim Basin proved that the method can improve the seismic data acquisition conditions and applicability of lines,promoting the data quality and cutting down the exploration cost.更多还原