Stratigraphy, geochemistry and reservoir quality of Middle and Upper Devonian shale formations in British Columbia and Alberta

不列颠哥伦比亚省和艾伯塔省中、上泥盆统页岩地层的地层学、地球化学和储层质量

• 批准号: 445064-2012
• 负责人: Harris, Nicholas
• 金额: $ 4.15万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2015
• 资助国家: 加拿大
• 起止时间: 2015-01-01 至 2016-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=575011
• 关键词: Stratigraphy; geochemistry; reservoir; quality; Middle

We propose to carry out a integrated stratigraphic, geochemical and petrophysical analysis of Devonian shale formations in northeastern British Columbia (the Horn River shale sequence) and Alberta (Duvernay Formation). The objectives of this research are to develop (1) reservoir models and petrophysical databases of the western Canada Devonian shales and (2) exploration and development models for shale reservoirs that can be applied elsewhere. These formations, with numerous long cores, a dense network of wells with modern well logs suites, and a well-defined basin architecture, provide an outstanding research opportunity. Shale reservoirs are now recognized as major resources of natural gas and oil, sufficient to substantially reshape Canada's resource base. However the properties that control how hydrocarbons are stored in and flow from these reservoirs - porosity, permeability, fluid saturations and rock mechanical strength - are poorly known, and recovery of oil and gas is relatively inefficient, expensive, and risky. The major aim of this research is to develop geological and petrophysical models that will make development of these resources more effective and reduce the environmental and social footprint. This research will also contribute to our understanding of paleoceanography and sedimentation during a critical time in earth history, bracketing one of the five major extinctions and coincident with the major spread of land plants. The research will have five major components, involving faculty and students in earth science, physics, and engineering. We will: (1) Develop depositional models for the formation; (2) Create a detailed geochemical and petrophysical databases that will provide a rational scheme for projecting rock properties away from areas of well control; (3) Develop geostatistical models for pore systems and for projecting reservoir attributes away from wellbore control; (5) Develop geomechanical models.

我们建议对不列颠哥伦比亚省东北部（霍恩河页岩层序）和艾伯塔省（杜韦内组）的泥盆纪页岩地层进行综合地层学、地球化学和岩石物理分析。 本研究的目标是开发 (1) 加拿大西部泥盆纪页岩的储层模型和岩石物理数据库，以及 (2) 可应用于其他地方的页岩储层勘探和开发模型。 这些地层具有大量的长岩心、具有现代测井曲线的密集井网络以及明确的盆地结构，提供了绝佳的研究机会。 页岩储层现已被认为是天然气和石油的主要资源，足以大幅重塑加拿大的资源基础。 然而，控制碳氢化合物如何储存在这些储层中以及从这些储层中流出的特性——孔隙度、渗透率、流体饱和度和岩石机械强度——却鲜为人知，而且石油和天然气的开采效率相对较低、成本高昂且风险较大。 这项研究的主要目的是开发地质和石油物理模型，使这些资源的开发更加有效，并减少环境和社会足迹。 这项研究还将有助于我们了解地球历史关键时期的古海洋学和沉积作用，包括五次主要灭绝事件之一，并且与陆地植物的主要传播同时发生。 该研究将由五个主要部分组成，涉及地球科学、物理和工程学领域的教师和学生。 我们将： (1) 开发地层沉积模型； (2) 创建详细的地球化学和岩石物理数据库，为预测远离井控区域的岩石特性提供合理的方案； (3) 开发孔隙系统的地质统计模型，并预测储层属性不受井眼控制的影响； (5)开发地质力学模型。