Unconventional gas potential of the lower triassic montney formation, west-central Alberta and northeastern British Columbia

艾伯塔省中西部和不列颠哥伦比亚省东北部下三叠统蒙尼地层的非常规天然气潜力

• 批准号: 460960-2013
• 负责人: Zonneveld, JohnPaul
• 金额: $ 17.33万
• 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=576637
• 关键词: Unconventional; gas; potential; lower; triassic

The Montney Formation in northeastern British Columbia and north-central Alberta is one of western Canada's most lucrative unconventional hydrocarbon plays. Thick (up to 350 metres thick) and aerially extensive (over five million Ha), the Montney contains estimated in-place reserves of 100 to 800 TCF (5.67-42.48 million m3). Hydrocarbons are stored within organic-rich siltstone intervals with TOCs ranging up to 4%. This play has expanded rapidly over the past five years; however, research reports that provide predictive stratigraphic and sedimentologic models are sparse. To date, published research on the Montney Formation has focused primarily on conventional reservoir intervals such as the Montney turbidite interval in west-central Alberta and shoreface clastic and bioclastic units. The detailed stratigraphy, and the nature and distribution of porosity and permeability within the Montney remain poorly understood. This proposal aims to address these interrelated knowledge gaps. Better stratigraphic and sedimentological models are critical for defining reservoir units, reservoir correlations and properties important to reservoir quality such as grain size and syndepositional cements. Analyses of early and burial diagenesis are necessary for predictions of reservoir properties, including porosity, permeability and water saturation, and for better interpretation of well logs. The research proposed here will develop integrated models for the Montney, using a number of data types. Stratigraphic and sedimentological models will be based on core studies, well logs, and chemostratigraphic analysis. A variety of petrographic and geochemical techniques will be combined with porosity and permeability measurements at different scales to develop predictive diagenetic models required to fully understand the heterogeneous nature of the Montney and develop predictive models to identify sweet spots in this thick, laterally extensive unit.

位于不列颠哥伦比亚省东北部和阿尔伯塔中北部的蒙特尼组是加拿大西部最有利可图的非常规油气藏之一。厚（厚达350米）和空中广泛（超过500万公顷），蒙特尼包含估计的100至800 TCF（567 - 4248万立方米）的地质储量。 碳氢化合物储存在有机物丰富的粉砂岩层段中，TOC高达4%。 在过去的五年中，这一领域迅速扩大，然而，提供预测性地层学和沉积学模型的研究报告却很少。迄今为止，已发表的关于Montney地层的研究主要集中在常规储集层段，如阿尔伯塔中西部的Montney浊积岩段和滨面碎屑岩和生物碎屑岩单元。详细的地层学，和性质和分布的孔隙度和渗透率内的蒙特尼仍然知之甚少。本建议旨在填补这些相互关联的知识空白。 更好的地层学和沉积学模型对于确定储集层单元、储集层对比和对储集层质量很重要的性质（如粒度和同沉积胶结物）至关重要。 早期和埋藏成岩作用的分析对于预测储层性质，包括孔隙度、渗透率和含水饱和度，以及更好地解释测井曲线是必要的。 这里提出的研究将开发综合模型的Montney，使用一些数据类型。地层学和沉积学模型将以岩心研究、钻井日志和化学地层学分析为基础。各种岩相学和地球化学技术将与不同尺度的孔隙度和渗透率测量相结合，以开发预测成岩模型，从而充分了解Montney的非均质性质，并开发预测模型，以确定这个厚的横向扩展单元中的最佳点。