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简要介绍了地理信息系统（GIS）概况，同时讨论了利用GIS进行油气评价的可能性及优越性，并利用此法对辽河外围盆地进行凹陷评价，建立了辽河外围盆地地质信息系统，最后应用自组织神经网络对这些凹陷优选排队。
This paper briefly introduced the general situation of Geographic Information System (GIS), discussed the possibility and superiority of utilizing GIS to evaluate oil and gas, and used this method to evaluate the depression in the peripheral basins of Liaohe River. The geological information system of the peripheral basins of Liaohe River was established. Finally, Tissues neural networks are preferably queued for these depressions.