任丘油田典型油井周围土壤中多环芳烃垂向分布特征  

VERTICAL DISTRIBUTION CHARACTERISTICS OF POLYCYCLIC AROMATIC HYDROCARBON IN SOIL AROUND TYPICAL WELL IN RENQIU OILFIELD

作　　者：刘双双[1] 高达[1] 程岳宏[1] 

机构地区：[1]中国地质大学能源学院,北京100083

出　　处：《资源与产业》2008年第3期39-43,共5页Resources & Industries

摘　　要：在任丘油田南部的一口典型开发井周围5个剖面中共采集15个土壤样品，索氏提取法提取有机物，采用气相色谱-质谱方法对美国环保署（EPA）优先控制的16种多环芳烃（PAHs）进行分析测定。结果显示：研究区内土壤受到严重污染；PAHs总含量随深度增加总体呈先递增后递减趋势，峰值出现在约20cm深度处；萘、芴、蒽、菲等低环芳烃占有很大比例，萘的含量最高；PAHs含量随环数的增加有递减趋势，但在距油井较近的剖面中高环芳烃含量所占比例有所增加；低环芳烃主要分布在0～20cm深度范围内，中高环芳烃主要分布在20～30cm深度范围内。This paper, based on 15 soil samples in 5 profiles around a typical development well in the southern Renqiu Oilfield, measures the polycyclic aromatic hydrocarbons （EPA＇s controlled 16 PAHs as perference ） via gas chromatography-mass spectrometry detector （GC-MS） , with the results indicate that the soils in nearby the well have been greatly contaminated. The total PAHs declines with depth, and with a peak at 20 cm in depth. The low-ring PAHs such as Naphthalene, Fluorene, Anthracene and Phenanthrene and so on have a big proportion, of which the Naphthalene is the most. The PAHs decreases with rings, but the high-ring PAHs have an increasing proportion towards the well. The low-ring PAHs are distributed chiefly at a depth of 0 - 20 cm and the middle-high ones at 20 30 cm.

关 键 词：任丘油田 土壤 多环芳烃 分布特征 

分 类 号：X53[环境科学与工程—环境工程]