准噶尔盆地东北缘油气微渗漏地表酸解烃测试分析

摘要

Based on the acidolysis hydrocarbon,X diffraction analysis of the samples collected from the northeastern,it is found that the correlation coefficient of methane gas and carbonate is the highest,analyzes the relationship and the influence of carbonate and acidolysis hydrocarbon,and using the regression analysis method to removal and inhibition on the effect of soil carbonate.The results were corrected for hydrocarbon content in solution.To further determine the anomaly threshold of methane content,using the hydrocarbon characteristic ratio method,combined with the experience and analysis of previous research,it is believed that the sample which higher than anomaly threshold is mainly oil-associated gas in study area.The acidolysis hydrocarbon gas content in the north and south part of study area is different with dry coefficient.In a word,dry coefficients combined with the acidolysis hydrocarbon anomaly has certain significance in studying light hydrocarbon micro-leakage in the northern part of the study area.%对准噶尔盆地东北缘研究区的采集样品进行酸解烃、X射线衍射测试分析,发现甲烷气体与碳酸盐的相关系数最高,分析了二者的相互关系及影响,并采用回归分析法对土壤碳酸盐的影响进行排除与抑制,对酸解烃含量测试结果进行校正.进一步确定甲烷含量校正数据的异常门限值,采用烃类特征比值法,结合前人的经验与分析,认为研究区高于异常门限值的样品以石油伴生气居多.研究区南北两个区域酸解烃气体含量与干燥系数具有较强的差异,认为干燥系数结合酸解烃异常在研究区北部轻烃微渗漏具有一定的指示意义.