石油学报 ›› 2003, Vol. 24 ›› Issue (5): 32-35.DOI: 10.7623/syxb200305007

• 地质勘探 • 上一篇    下一篇

塔里木油田水碳酸盐平衡系数与有机酸的意义

李伟1,2, 刘宝珺1, 闵磊3   

  1. 1. 成都理工大学, 四川成都, 610059;
    2. 中国石油勘探开发研究院地质所, 北京, 100083;
    3. 中国石油塔里木油田分公司, 新疆库尔勒, 841000
  • 收稿日期:2002-07-29 修回日期:2003-03-26 出版日期:2003-09-25 发布日期:2010-05-21
  • 作者简介:李伟,男,1963年2月生,1987年毕业于江汉石油学院,现为成都理工大学沉积所在职博士研究生,高级工程师,主要从事石油地质综合研究工作.
  • 基金资助:
    国家"八五"科技攻关项目(85-101-01-07).

Petroleum geological significance of carbonate equilibrium ratios and organic acid in oil-field water in Tarim Basin

LI Wei1,2, LIU Bao-jun1, MIN Lei3   

  1. 1. Chengdu University of Technology, Chengdu 610059, China;
    2. Research Institute of Petroleum Exploration and Development, Beijing 100083, China;
    3. Tarim Oil Field Company, Kuerle 841000, China
  • Received:2002-07-29 Revised:2003-03-26 Online:2003-09-25 Published:2010-05-21

摘要: 根据统计学规律,对塔里木盆地油田水进行了研究,阐明了该盆地油田水的碳酸盐平衡系数(简称为RC)与有机酸的基本特征.从油田水的无机组分与有机组分的统计分析中发现了油田水的碳酸盐平衡系数与有机酸存在明显的负相关性,进一步论证了碳酸盐平衡系数和有机酸与油气聚集及油气性质的关系.碳酸盐平衡系数越低及低碳有机酸的含量越高,它们与油藏,尤其是与轻质油或气藏的关系越密切.从两者的关系中初步了解到有机酸的溶蚀作用对油气藏中储层次生孔隙的形成应有较重要的影响.

关键词: 塔里木盆地, 油田水, 碳酸盐平衡系数, 有机酸, 油气聚集

Abstract: According to statistical distribution theory,the characteristics of carbonate equilibrium ratios and organic acid content in oil-field water were described. The negative relationship between carbonate equilibrium ratios and organic acid content in oilfield water was discovered.The relationships between carbonate equilibrium ratios and hydrocarbon accumulation or properties,as well as between organic acid and hydrocarbon accumulation or properties were discussed by investigating the oil-field water in Tarim Basin.It shows that the smaller carbonate equilibrium ratio and the higher the organic acid content is,the more closely the relation between oil-field water and light oil or gas reservoir will be.The organic acid dissolution plays an important role in generation of secondary porosity in reservoir.

Key words: Tarim Basin, oil-field water, carbonate equilibrium ratio, organic acid, hydrocarbon accumulation

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