Lateral Explusion of Pore Fluids during Vertical Loading of Sedimetary Strata

沉积地层垂直加载过程中孔隙流体的横向排挤

• 批准号: 8803889
• 负责人: Jeffrey Nunn
• 金额: $ 8.82万
• 依托单位: Louisiana State University
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1988
• 资助国家: 美国
• 起止时间: 1988-08-01 至 1991-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=8803889&HistoricalAwards=false
• 关键词: Lateral; Explusion; Pore; Fluids; during

The project carries out a two year study of lateral expulsion of pore fluids resulting from vertical loading of sedimentary strata by both tectonic and depositional processes. The study focusses on 1) compaction and topography-driven lateral flow as a mechanism of mass and heat transport in sedimentary layers, 2) variations in the flow pattern of pore water caused by the temporal and spatial changes in porosity and permeability, 3) geochemical and paleomagnetic evidence for and constraints on lateral flow, and 4) application of these results to the lateral migration of pore fluids and hydrocarbons in the Appalachian and Colville Foreland Basins and the Northern Gulf Coast Passive Margin. The objective of the project is to better understand the role of pore fluid migration and diagenesis in sedimentary layers and to be able to use this information quantitatively in the evaluation of fluid expulsion as a mechanism for heat and mass transfer in sedimentary basins.

该项目开展了一项为期两年的研究，研究由构造和沉积过程对沉积地层的垂直载荷造成的孔隙流体侧向排出。研究重点包括：1)压实作用和地形驱动的横向流动作为沉积层中物质和热量传递的机制；2)孔隙度和渗透率的时空变化导致孔隙水流动模式的变化；3)侧向流动的地球化学和古地磁证据及其制约因素。4)将这些结果应用于Appalachian和Colville前陆盆地以及北墨西哥湾被动边缘的孔隙流体和油气横向运移。该项目的目的是更好地了解孔隙流体迁移和成岩作用在沉积层中的作用，并能够在定量评价流体排出作为沉积盆地传热传质机制时使用这些信息。