在不同地形条件下对二氧化碳泄漏的度和温度场进行实验研究
Yanan Li1, Fengpu Xiao1, Zhonghuang Ma2
1Engineering Technology Research Institute of CNPC Xinjiang Oilfield Company, Karamay, Xinjiang, China.
PloS one
|January 16, 2026
概括
碳捕获和储存 (CCS) 技术在复杂的油田地形中存在二氧化碳泄漏的风险. 这项研究揭示了CO2扩散模式和泄漏期间的温度变化,这对安全至关重要.
科学领域:
- 环境科学 环境科学
- 地质物理学 地质物理学
- 化学工程是化学工程的重要组成部分.
背景情况:
- 碳捕获和储存 (CCS) 提供了改进的石油回收和减少排放.
- 复杂的油田地形增加了二氧化碳泄漏风险,可能导致窒息.
- 了解不同地形的二氧化碳行为对于运营安全至关重要.
研究的目的:
- 在复杂的地形条件下调查二氧化碳泄漏和扩散法律.
- 分析地形对二氧化碳扩散和度的影响.
- 评估与二氧化碳释放相关的温度变化.
主要方法:
- 对二氧化碳泄漏和扩散进行了全面的实验研究.
- 与油田二氧化碳捕获和增强石油回收相关的模拟条件.
- 测量的二氧化碳度和与地形有关的温度分布.
主要成果:
- 时间平均二氧化碳度跟随从源处的距离呈指数分布.
- 1%的二氧化碳度布在梯形地形上延伸了65米,比平面地形更远30%.
- 随着泄漏时间和接近源头的温度下降,平均梯度为0.39°C/m.
结论:
- 地形显著影响二氧化碳的扩散范围和度.
- 二氧化碳泄漏带来热危险,在释放点附近快速冷却.
- 这些发现对于在具有挑战性的油田环境中制定CCS安全协议至关重要.
相关概念视频
Phase Diagrams
48.8K
A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
48.8K
Turbulent Flow: Problem Solving
388
Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures enhance...
388
Assessment of Diffusion and Perfusion
1.5K
Understanding and evaluating diffusion and perfusion is critical in assessing a patient's respiratory and circulatory health. These processes play key roles in maintaining the body's internal environment, ensuring that tissues receive adequate oxygen while waste products are efficiently removed.
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
The Role of Diffusion in Respiration
Diffusion is the process by which molecules move from an area of higher concentration to an area of lower concentration. In the respiratory system, this...
1.5K


