近地表土壤中可溶态阳离子的石油地质意义

李广之, 陈银节, 尹红军, 宣海波

doi:10.11764/j.issn.1672-1926.2011.02.201

天然气地球科学 >

2011 , Vol. 22 >Issue 2: 201 - 205

DOI: https://doi.org/10.11764/j.issn.1672-1926.2011.02.201

天然气地球化学

近地表土壤中可溶态阳离子的石油地质意义

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1.中国石化集团资产经营管理有限公司合肥培训测试中心，安徽合肥 230022；
2.中国石化勘探开发研究院无锡实验地质研究所，江苏无锡 214151

李广之(1970-)，男，安徽长丰人，高级工程师，主要从事油气地球化学基础理论、技术方法应用及实验分析技术的研究.

收稿日期: 2010-03-15

修回日期: 2010-04-21

网络出版日期: 2011-04-10

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Petroleum Geological Significance of Soluble Cation in Near-surface Soil

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1.Hefei Training and Testing Center of Assets Management Ltd.of China Petrochemical Corporation，Hefei 230022，China；
2.Wuxi Research Institute of Experimental Petroleum Geology，SINOPEC,Wuxi 214151，China

Received date: 2010-03-15

Revised date: 2010-04-21

Online published: 2011-04-10

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摘要

沉积有机质在生成油气及运移的过程中，原油中的部分可溶微量元素会分离出来溶解在伴生的水中,与油田水一起运移至近地表\.通过一定技术手段分析近地表土壤中的可溶态阳离子的含量变化特征，就可以追踪下伏对应地层的含油气信息。通过对新场气田、昌德气田、平方王油田上方近地表土壤中的可溶态阳离子检测的实验研究表明:油田水中可溶态阳离子主要以水为载体进行运移，油田水向上运移的通道决定了可溶态阳离子在油气藏上方的异常形态及模式；可溶态阳离子对下伏地层的油气藏具有一定的指示意义

关键词： 有机质; 近地表土壤; 微量元素; 可溶态阳离子; 石油地质意义

本文引用格式

李广之, 陈银节, 尹红军, 宣海波 . 近地表土壤中可溶态阳离子的石油地质意义[J]. 天然气地球科学, 2011 , 22(2) : 201 -205 . DOI: 10.11764/j.issn.1672-1926.2011.02.201

Abstract

During the formation and migration of oil and gas, some soluble microelements had been separated and dissolved in the associated water.Dissolved microelements in oilfield water and crude oil could migrate with water to the near\|surface.So we can track the oil-gas information underlying strata by analyzing variations of soluble cations in near-surface soil.Study on variations of near-surface soluble cations in the Xinchang gas field, Changde gas field and Pingfangwang oil field shows that: Soluble cations in oilfield water mainly migrate by the water carriers; the upward migration passage of oilfield water determines the abnormity shape and pattern of soluble cations at the top of oil and gas reservoirs; and variations of soluble cations have a certain meaning of the instructions of the oil and gas reservoirs on the underlying strata.

Key words： Organic matter; Near-surface soil; Microelements; Soluble cation; Petroleum significance.

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