Gas Hydrate Formation, Dissociation, and Stability in Porous Marine Sediments: Three-Phase Models Based on Observational Constraints

多孔海洋沉积物中气体水合物的形成、解离和稳定性：基于观测约束的三相模型

• 批准号: 9730846
• 负责人: Carolyn Ruppel
• 金额: $ 15.54万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1998
• 资助国家: 美国
• 起止时间: 1998-04-01 至 2003-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9730846&HistoricalAwards=false
• 关键词: Gas; Hydrate; Formation; Dissociation; Stability

9730846 Ruppel Rates of gas hydrate fromation remain unquantified. This modeling study will fill the gap in our knowledge of the gas hydrate systems through the development of 3-phase (liquid- gas-hydrate) model for porous marine sediments constrained by empirical temperature, pressure, salinity, stability of seawater and hydrate data. Temperature gradients in marine sediments will also be taken into account. The model will then be applied to determine how climatic change in pressure (sea level fluctuations) and bottom water temperature affect hydrate stability zone.

小行星9730846 天然气水合物的形成速率仍然无法量化。本模拟研究将填补我们对天然气水合物系统认识的差距，通过建立受经验温度、压力、盐度、海水稳定性和水合物数据约束的多孔海洋沉积物三相（液体-气体-水合物）模型。 海洋沉积物中的温度梯度也将被考虑在内。 然后，该模型将被应用于确定如何气候变化的压力（海平面波动）和底层水温影响水合物稳定带。