Quantification of the gas and liquids in place and flow characteristics of shale and other fine grained rocks in Western Canada

加拿大西部页岩和其他细粒岩石的气体和液体的量化以及流动特征

• 批准号: 468225-2014
• 负责人: Bustin, Robert
• 金额: $ 10.71万
• 依托单位: University of British Columbia
• 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=577187
• 关键词: Quantification; gas; liquids; place; flow

Tremendous resources of unconventional gas and hydrocarbon liquids exist in Western Canada in fine grained rocks generally referred to as shales. Predicting the distribution of liquid hydrocarbons in shales and the production rates of the liquids has however remained elusive. Simple analyses of the current level of organic maturity has not proved to be satisfactory particularly in areas where maturity, kerogen type, reservoir conditions (pressure and temperature) and rock character changes laterally (i.e. Eagle Ford and Duvernay formations). Overall our success in developing shales as petroleum reservoirs has not been paralleled with increased understanding of either the geological processes that determine gas and liquids in place, methods for quantifying hydrocarbons in place or the flow characteristics of the rocks, all of which are critical to economic development. Hydrocarbon liquids have proved particularly challenging with problems anticipated due to changing relatively permeability during production and inevitable retrograde condensation and potential phase blocking in some reservoirs with declining pressures and temperatures during production. This proposal has two interrelated components: 1) development of better methodologies for quantifying gas and liquid in place in gas shale and shale oil reservoirs and measuring matrix flow characteristics (such as relatively permeability and diffusivity); and 2) quantification of the gas and liquids in place and flow capacity of important shales in Western Canada using established and novel methodologies. The research will focus on several key horizons for which considerable data is in hand: the Exshaw, Doig, Montney, Nordegg and Wilrich formations and equivalent strata which are prospective reservoirs and for which the principal investigator has considerable experience.

加拿大西部的巨大资源在加拿大西部存在于通常称为页岩的细颗粒岩石中。 然而，预测页岩中液态碳氢化合物的分布和液体的生产速率仍然难以捉摸。 对当前有机成熟度水平的简单分析尚未被证明令人满意，尤其是在成熟度，动力学类型，储层条件（压力和温度）以及岩石特征横向变化的区域（即Eagle Ford和Duvernay地层）。 总体而言，我们在开发页岩中作为石油储层的成功尚未与对确定气体和液体的地质过程的了解相似，这是量化现有碳氢化合物的方法或岩石的流动特性，所有这些方法对经济发展至关重要。 由于在生产过程中相对易于渗透性的变化以及在某些储层中不可避免的逆行凝结和潜在的相位阻断，因此碳氢化合物液体在预期的问题上尤其具有挑战性。 该提案有两个相互关联的组成部分：1）开发更好的方法论，以量化气体页岩和页岩油储层中的气体和液体，并测量基质流动特性（例如相对渗透性和扩散率）； 2）使用已建立和新颖的方法对加拿大西部重要页岩的气体和流量进行定量。 该研究将重点关注大量数据的几个关键视野：Exshaw，Doig，Montney，Nordegg和Wilrich的形成以及等效的地层，这些层是潜在的储层，并且主要研究人员拥有丰富的经验。