圈闭勘探风险构成与评价方法探讨——以松辽盆地徐家围子深层火山岩岩性圈闭勘探为例

Discussion on composition of trap exploration risk and evaluation method--taking exploration of the lithologic trap of deep volcanic rock of Xujiaweizi in Songliao basin as an example.

应用层次分析法综合分析圈闭成藏地质条件 ,利用蒙特卡罗法对圈闭资源量进行模拟 ,可以得到不同圈闭成藏的相对地质风险和资源量。根据已勘探圈闭综合地质条件及其资源量经济下限 ,标定圈闭地质风险和资源量的下限 ,缩小勘探目标。最后 ,分析入选圈闭的预期经济价值 ,确定勘探目标。

Relative geological risk and resource volume of different trap formed reservoirs may be obtained by synthetically analyzing their geologic conditions using analytical hierarchy process and by simulating resource volume using Monte Carlo method. The minimum risk and resources can be calibrated by the minimum economic resource volume and the synthetical geologic conditions of an explored trap, and then exploration target could be narrowed down. Expected economic value of the selected traps will be analyzed and the exploration target will be determined at last.