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

位于不列颠哥伦比亚省东北部和艾伯塔省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区块之一。蒙特尼盆地厚(厚达350米)，空中面积大(超过500万公顷)，估计原地储量为100至800 TCF(5.67-4248万立方米)。碳氢化合物储存在富含有机物质的粉砂岩区间内，有机碳含量高达4%。 这项研究在过去五年中迅速扩大；然而，提供预测性地层学和沉积学模型的研究报告很少。到目前为止，已发表的关于蒙特尼组的研究主要集中在常规储集层段，如艾伯塔省中西部的蒙特尼浊积岩段和滨面碎屑和生物碎屑单元。对蒙尼山的详细地层学以及孔隙度和渗透率的性质和分布仍知之甚少。这项提议旨在解决这些相互关联的知识差距。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。这里提出的研究将使用多种数据类型为蒙特尼开发综合模型。地层和沉积学模型将以岩心研究、测井和化学地层分析为基础。各种岩石学和地球化学技术将与不同尺度上的孔隙度和渗透率测量相结合，以开发预测成岩模型，以充分了解蒙特尼的非均质性，并开发预测模型，以确定这一厚度较大、横向分布广泛的单元中的甜蜜点。

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.