Sedimentology, Stratigraphy and Depositional Processes in Siliciclastic Turbidite Systems

硅质碎屑浊积岩系统的沉积学、地层学和沉积过程

• 批准号: RGPIN-2017-05454
• 负责人: Arnott, Robert
• 金额: $ 2.33万
• 依托单位: University of Ottawa
• 依托单位国家: 加拿大
• 项目类别: Discovery Grants Program - Individual
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=633816
• 关键词: Sedimentology; Stratigraphy; Depositional; Processes; Siliciclastic

The global economy is driven by energy. With increasing attention being focused on the negative environmental effects of coal burning, liquid and gaseous hydrocarbons are becoming the principal source for our ever-growing energy needs. For producers this requires maintaining the current volume of hydrocarbon production, which in turn requires replacing production with new reserves. Presently, however, the new "elephant" fields (i.e. those capable of high-volume conventional oil and gas production) occur in deep-marine turbidite systems situated in very deep water, commonly more than 2500 m, off modern continental margins, like the eastern and northern coasts of Canada. In these areas exploration and production costs are prohibitive, and as a consequence necessitates careful economic consideration and concern. In order to make these exploration and exploitation efforts economic, companies must increase their chance of success and the volumetric output from each well. The variable that most impacts these economically significant parameters is the geological framework and how it controls reservoir occurrence and performance. A detailed understanding of reservoir architecture and performance, however, requires an understanding of sub-seismic-scale features, which therefore requires field-based outcrop and experimental investigation. Based on the Neoproterozoic Windermere Supergroup, part of this research will study the facies composition and stratal geometry of a deep-marine basin floor to slope siliciclastic succession. In addition, a companion experimental program will investigate the influence of sediment concentration on the characteristics of deposition from the very flows that build-up the deep-marine sedimentary record.

全球经济是由能源驱动的。随着人们越来越关注燃煤对环境的负面影响，液态和气态碳氢化合物正成为我们日益增长的能源需求的主要来源。对于生产商来说，这需要保持目前的油气产量，这反过来又需要用新的储量来取代产量。然而，目前，新的“大象”油田（即那些能够大批量生产常规油气的油田）出现在深水浊积岩系统中，通常超过2500米，远离现代大陆边缘，如加拿大的东部和北部海岸。在这些地区，勘探和生产成本高得令人望而却步，因此必须仔细考虑和关注经济问题。为了使这些勘探和开发工作更经济，公司必须增加他们成功的机会和每口井的产量。对这些具有经济意义的参数影响最大的变量是地质格架及其如何控制储层产状和动态。然而，要详细了解储层结构和性能，需要了解亚地震尺度的特征，因此需要基于现场的露头和实验调查。本研究将以新元古代温德米尔超群为基础，研究深海盆地底坡硅屑序的相组成和地层几何特征。此外，一个配套的实验项目将调查沉积物浓度对形成深海沉积记录的水流沉积特征的影响。