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建立在烃类垂向微运移理论基础上的化探技术是用先进仪器设备检测痕量的油气组分,不同级次的异常均具有重现性好、稳定性高的特点。区域异常可预测盆地的含油气远景,区带异常指出了油气富集的有利区带;局部异常为评价圈闭或圈闭钻探先后排序提供了依据;矿置异常显示了油气田扩边外缘的方向。井中化探能随钻预测油气层,提供试油层位。文中以实践探例论述了化探的上述功能,指出了当今油气化探存在的混淆勘查阶段、急功近利、忽视应用基础研究以及队伍技术力量不足等制约油气化探技术发展的问题。
Based on the theory of vertical migration of hydrocarbons, the geochemical exploration technique is to detect trace amounts of oil and gas components by using advanced equipment. All kinds of anomalies have good reproducibility and high stability. The regional anomalies can predict the hydrocarbon-bearing vistas of the basin. The anomalous zones indicate the favorable zones for oil and gas enrichment. The local anomalies provide the basis for the sequencing of traps or traps; direction. Wells in the gas to predict the oil and gas while drilling, to provide oil test beds. This paper discusses the above functions of geophysical exploration through exploration of practices, and points out the problems that restrict the development of geochemical exploration technologies, such as the confusion prospecting stage of oil and gas geochemical exploration, quick success and failure, neglect of applied basic research and lack of technical force of teams.