辽河盆地西部凹陷稠油分布区地层水化学特征

朱芳冰; 周红; 刘睿

doi:10.3799/dqkx.2015.167

辽河盆地西部凹陷稠油分布区地层水化学特征

doi: 10.3799/dqkx.2015.167

朱芳冰^{1, 2,},
周红^{1, 2},
刘睿^{1, 2}

1.
中国地质大学资源学院，湖北武汉 430074
2.
中国地质大学构造与油气资源教育部重点实验室，湖北武汉 430074

基金项目:

国家科技支撑计划(125计划)项目 2011021043

详细信息

作者简介:
朱芳冰(1966-), 女, 副教授, 博士, 从事石油地质与油藏工程的教学与科研工作.E-mail: zhufb66@163.com

中图分类号: P345
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- 被引次数: 0
出版历程
- 收稿日期: 2015-05-05
- 刊出日期: 2015-11-15

Geochemical Characteristics and Origin of Formation Water in Western Depression, Liaohe Basin

Zhu Fangbing^{1, 2
,},
Zhou Hong^{1, 2},
Liu Rui^{1, 2}

1.
Faculty of Earth Resources, China University of Geosciences, Wuhan 430074, China
2.
Key Laboratory of Tectonics and Petroleum Resources, Ministry of Education, China University of Geosciences, Wuhan 430074, China

摘要

摘要: 地层水特征是研究盆地演化及稠油分布的重要因素.稠油在辽河盆地已探明的石油储量中占有重要比例, 地层水化学场研究是预测稠油分布的基础，利用地层水地球化学特征和同位素资料研究地层水来源，分析水介质条件对原油降解稠化的影响.研究表明：西部凹陷地层水的矿化度和离子构成受深度控制，具有“垂向流”特征；其化学组成及变化规律的差异反映了不同地区地表水注入强度及局部地下水运动特征的变化，地表水注入强度及运动特征的差异是原油生物降解程度不同的主要原因，地下水的循环特征决定了其化学条件和原油生物降解程度，地表水淋滤作用是降解型稠油发育的必要条件.
- 辽河盆地 /
- 地层水 /
- 稠油 /
- 同位素 /
- 水文地质学
Abstract: The characteristics of formation water are important factors to study the basin evolution and heavy oil distribution. Geochemical studies can facilitate the exploration of heavy oil which dominates the oil reserves in Liaohe basin. Based on the test of formation water and isotope analyses of western depression, the geochemistry and origin of formation water are discussed in this paper. The total dissolved solid (TDS) and chemical compositions are controlled by the buried depth. The formations water shows vertical flow. The differences of chemical compositions of formation water and characters are related to intensity of surface water injection in different areas and local formation water flowing characters which are main reasons of crude oil bio-degradation. The isotope analyses also show that surface water injection is much stronger in Jinzhou, Huanxiling and Lenji areas. The different cycle characters of formation water lead to chemical conditions and crude oil bio-degradation. Surface water leaching is the necessary condition of degradation heavy oil development.
- Liaohe basin /
- formation water /
- heavy oil /
- isotope /
- hydrological geology

HTML全文

图 1 辽河盆地西部凹陷地层水阴离子构成三角图

Fig. 1. Triangular diagram of formation water negative ion composition in western depression, Liaohe basin

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图 2 辽河盆地西部凹陷地层水平均化学组成随深度的变化

Fig. 2. Variations of formation water average chemical composition with depth in western depression, Liaohe basin

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图 3 辽河盆地曙光油区地层水化学组成随深度变化

Fig. 3. Variations of formation water chemical composition with depth in Shuguang area, Liaohe basin

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图 4 西部凹陷地层水氢氧同位素关系

Fig. 4. Relationship between formation water hydrogen isotope and oxygen isotope in Western depression

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图 5 西部凹陷原油的密度及胶质和沥青质含量与油田水矿化度及离子含量的关系

Fig. 5. Relationship between crude oil density, colloid, asphalt and formation water salinity, ion in western depression

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表 1 西部凹陷下第三系各层位地层水化学组成

Table 1. Formation water chemical composition of Eogene members in western depression

下载: 导出CSV

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