川西北地区三叠系硫化氢分布及运移特征研究

许浩; 汤达祯; 魏国齐; 张君峰

doi:10.11781/sysydz200701078

川西北地区三叠系硫化氢分布及运移特征研究

doi: 10.11781/sysydz200701078

1.
中国地质大学能源学院, 北京 100083
2. 中国石油天然气股份有限公司石油勘探开发研究院廊坊分院, 河北廊坊 065007
3. 中国石油天然气股份有限公司石油勘探开发研究院, 北京 100083

基金项目: 国家重点基础研究发展计划(973计划)项目(2002CB11702)

详细信息

作者简介:
许浩(1979- ),男(汉族),河北黄骅人,博士生,主要从事石油与天然气地质研究工作.

中图分类号: TE132.3
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- 被引次数: 0
出版历程
- 收稿日期: 2006-06-20
- 修回日期: 2006-12-04
- 刊出日期: 2007-01-28

DISTRIBUTION AND MIGRATION FEATURES OF H₂S IN THE TRIASSIC IN THE NORTHWESTERN SICHUAN

1.
Gollege of Energy, China University of Geosciences, Beijing 100083, China
2. Langfang Branch of Petroleum Exploration and Development Research Institute, PetroChina, Langfang, Hebei 065007, China
3. Petroleum Exploration and Development Research Institute

摘要

摘要: 在深入研究包裹体岩相学特征的基础上,应用激光拉曼光谱分析了川西北地区不同层位、不同产状中包裹体的物质组成,探讨了该地区硫化氢的分布及运移特征。研究结果表明,该地区中、下三叠统中丰富的膏岩矿物、足够的埋藏深度以及较高的地温梯度构成了硫化氢大规模生成的必要条件。高含硫化氢天然气在须二段成岩作用阶段就开始大规模向该地层中运移,其运移通道主要为孔喉和溶蚀孔隙;后期注入的烃类中硫化氢含量相对较低,其运移通道为构造裂隙和流体压力作用形成的裂隙,在运移过程中相对稳定的还原环境是硫化氢不被消耗的关键条件。
- 流体包裹体 /
- 硫化氢 /
- 激光拉曼光谱 /
- 化学组成 /
- 运移特征 /
- 川西凹陷
Abstract: Based on the deep researches of diagenesis in the northwestern Sichuan,chemical composition of the fluid inclusions in different formations and different attitudes were analysed by Laser Roman Microspectrometer.And the distribution characteristics of H₂S and its migration features were discussed.The results show that the charging of hydrocarbon with high H₂S concentration from low formation last a long time.Hydrocarbon being charged at the stage of diagenesis of the 2nd Member of Xujiahe Formation has a high H₂S concentration and its migration pathway are mainly the hole,throat and fissure system,while hydrocarbon being charged at the later stage has a relatively low H₂S content and its migration pathway is mainly the fissure system.And sustained reducing environment is necessary for H₂S not being exhausted during migration.
- fluid inclusion /
- H₂S /
- Laser Roman Spectrum /
- chemical composition /
- migration features /
- the West Sichuan Depression

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参考文献(13)

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