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: 2014
• 资助国家: 加拿大
• 起止时间: 2014-01-01 至 2015-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=562697
• 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.

加拿大西部的细粒岩石（通常称为页岩）中蕴藏着丰富的非常规天然气和碳氢化合物资源。 然而，预测页岩中液态烃的分布和液体的生产率仍然难以实现。 对当前有机成熟度水平的简单分析尚未证明令人满意，特别是在成熟度、干酪根类型、储层条件（压力和温度）和岩石特征横向变化的地区（即 Eagle Ford 和 Duvernay 地层）。 总体而言，我们在开发页岩作为石油储层方面取得的成功并没有与对决定天然气和液体的地质过程、量化当地碳氢化合物的方法或岩石流动特性的了解相提并论，所有这些对经济都至关重要。发展。 事实证明，由于生产过程中相对渗透率的变化以及在生产过程中压力和温度下降的一些储层中不可避免的逆行凝结和潜在的相堵塞，碳氢化合物液体已被证明对预期的问题特别具有挑战性。 该提案有两个相互关联的组成部分：1）开发更好的方法来量化页岩气和页岩油储层中的气体和液体并测量基质流动特性（例如相对渗透率和扩散率）； 2) 使用既定和新颖的方法对加拿大西部重要页岩的天然气和液体以及流动能力进行量化。 研究将重点关注手头有大量数据的几个关键地层：Exshaw、Doig、Montney、Nordegg 和 Wilrich 地层以及等效地层，这些地层是潜在储层，且首席研究员对此拥有丰富的经验。