| 本文已被：浏览次 下载次 |
码上扫一扫！ |
|
|
| pH值对砂岩中CO2示踪矿物的稳定性影响实验研究 |
|
李福来1,2,胡泽泉3,吕希学4,李文帅1,段忠丰1,2
|
|
(1.中国石油大学地球科学与技术学院,山东青岛 266580;2.海洋国家实验室海洋矿产资源评价与探测技术功能实验室, 山东 青岛 266071;3.中国石油大学地球科学学院,北京 102249;4.中国石化胜利油田公司,山东东营 257001)
|
|
| 摘要: |
| 研究片钠铝石形成后保持稳定的pH值临界条件,对含片钠铝石砂岩展开了不同pH值条件下水-岩反应实验。结果表明:在封闭反应体系条件下,相同pH值(pH值为4)、不同体积(10、80、500 mL)条件下,随着反应溶液体积的增大,片钠铝石溶蚀程度增强,片钠铝石稳定性降低;相同体积(500 mL)、不同pH值(4
|
| 关键词: 片钠铝石稳定性 水-岩反应 pH值 |
| DOI：10.3969/j.issn.1673-5005.2016.03.003 |
| 分类号::P 97 |
| 基金项目:国家自然科学基金项目(41202075,4);中央高校基本科研业务费专项资金(16CX05003A) |
|
| Influence of pH value on the stability of CO2 tracer mineral in sandstone |
|
LI Fulai1,2, HU Zequan3, L Xixue4, LI Wenshuai1, DUAN Zhongfeng1,2
|
|
(1.School of Geosciences in China University of Petroleum, Qingdao 266580, China;2.Laboratory for Marine Mineral Resources, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266071, China;3.School of Geosciences in China University of Petroleum, Beijing 102249, China;4.Shengli Oilfield Company, SINOPEC, Dongying 257061, China)
|
| Abstract: |
| CO2 geological storage is a feasible way of limiting the excessive CO2 emission into atmosphere. Dawsonite is an effective "tracer mineral" of CO2 migration, accumulation or escape, which is also a dominant "traps minerals" for CO2 geological storage. The water-rock reaction experiment on dawsonite sandstone at different pH values was carried out to explore the pH value critical conditions for dawsonite stability after its formation. In the closed reaction system, under the condition of constant pH value (pH=4) and different volumes (10,0, 500 mL), it is found that the degree of dawsonite dissolution increases and the dawsonite stability decreases with the increasing volume of reaction solution. Meanwhile, at the constant volume (V=500 mL) with different pH values (4
|
| Key words: stability of dawsonite water-rock reaction pH value |
