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应用土壤磁化率结合化探、地震、遥感资料,在内蒙西部荒漠区进行大面积油气勘查的综合研究,结果表明土壤磁化率异常与烃异常有相似的分布趋势,并都受构造控制。根据两个含油气局部构造磁化率异常与磁性矿物含量分析结果,认为磁化率异常的成因是由于含油气构造部位次生磁性物质形成的总体效应所致,因此,应用此方法进行油气勘查,只能作为一种烃蚀变异常的间接指示指标
The comprehensive study on large-area oil and gas exploration in the western desert of Inner Mongolia by using the ratio of soil magnetic susceptibility combined with geochemical exploration, seismic and remote sensing data shows that the abnormality of soil magnetic susceptibility and hydrocarbon anomalies have similar distribution trends and are controlled by tectonics. According to the results of magnetic susceptibility anomaly and magnetic mineral content analysis of two local structures with oil and gas, it is considered that the cause of magnetic susceptibility anomaly is caused by the overall effect of formation of secondary magnetic material in the tectonic part of petroleum-bearing structure. Therefore, It can be used as an indirect indicator of hydrocarbon alteration anomalies