海拉尔盆地碳钠铝石分布与油气的关系

NaAlCO(OH) DISTRIBUTION AND ITS RELATIONSHIP WITH OIL AND GAS IN HAILAR BASIN

徐衍彬 陈平 徐永成

Xu Yanbin Chen Ping Xu Yongcheng

海拉尔盆地碳钠铝石的形成与CO的分压有关,含有碳钢铝石的井都分布于CO分压的高值区;但却并非凡是CO气藏都含有碳钠铝石,因为CO只是形成碳钢铝石的条件之一.CO为无机成因,受控于燕山期的岩浆活动;而岩浆活动又促进有机质的成熟向烃类转化.三者分布的依存关系表明,根据碳钠铝石的分布,可以预测油气和CO的有利勘探区.

The formation of NaAlCO (OH) in the. Hailar Basin was related to CO Pressure, and all NaAlCO(OH)-bearing wells are distributed in high value areas of CO pr essu re. Bu t it is a fact that not all CO reservoirs contain NaAlCO(OH) since CO is just one of the factors to form this minerals.The CO in the basin is of inorganic genesis and was dominated by Yenshan magmatic activity while magmatic activity impelled organic matter to matuate and evolute. Accoriding to the coexisting relationship between CO, NaAlCO (OH )2 and hydrocarbon, and the distribution of NaAlCO(OH), target areas of oil and gas as well as CO exploration could be predicted.

10.11743/ogg19940408