Mudstone microstructure in a macro-stratigraphic context: Relationship to reservoir storage and flow capacity

宏观地层背景下的泥岩微观结构：与储层储量和流量的关系

• 批准号: 461626-2013
• 负责人: Plint, Guy
• 金额: $ 0.85万
• 依托单位: University of Western Ontario
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2017
• 资助国家: 加拿大
• 起止时间: 2017-01-01 至 2018-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=618973
• 关键词: Mudstone; microstructure; macro; stratigraphic; context

Growing global demand for petroleum and natural gas has necessitated finding new supplies to replace declining conventional production. Traditionally, shales have been viewed as 'non-reservoir' rocks and hence of little economic importance. However, in the last decade, shales have undergone a dramatic re-appraisal in terms of their hydrocarbon resource potential. One aspect of this is driven by the development of horizontal drilling technology combined with multistage hydraulic fracture treatments to facilitate economic flow rates from very low permeability shale formations. In addition, there has been an explosion of interest in, and a steadily expanding understanding of, the various geological processes that govern mud sedimentation. Included are the physical, chemical and biological processes that cause mud particles to aggregate together, the physical processes that transport mud into and across sedimentary basins, the biochemical processes that control the cementation of mud and organic particles at burial depths of centimetres to a few metres, and the physical and chemical processes that control compaction and maturation of organic matter to burial depths of several km. This sequence of processes determines the microfabric governing the rock's capacity to store and transmit fluids, and may play an important role in the conversion of disseminated organic matter to petroleum. The proposed project will provide improved understanding of the depositional and burial processes that have affected specific shale formations in Alberta and British Columbia. The resulting knowledge may help to guide exploration efforts in these 'unconventional reservoirs', potentially leading to delineation of greater oil and gas reserves, with consequent implications for employment, royalties, and benefit to the overall Canadian economy.

全球对石油和天然气的需求不断增长，因此需要寻找新的供应来取代常规生产的下降。传统上，页岩被视为“非储存”岩石，因此经济重要性很小。但是，在过去的十年中，页岩在其烃资源潜力方面经历了引人注目的重新评估。一方面是由水平钻井技术的发展以及多级液压裂缝处理的发展驱动的，从而促进了从非常低的渗透率页岩形成中的经济流量。此外，对控制泥浆沉积的各种地质​​过程的兴趣爆炸，并稳定地扩展了理解。包括物理，化学和生物学过程，这些过程会导致泥浆颗粒聚集在一起，将泥浆传递到沉积盆地和跨沉积盆地的物理过程，这些过程控制在厘米的埋入深度上固结泥浆和有机颗粒的生化过程，以及几米的物理和化学过程，这些过程的物理和化学过程是控制和成熟的有机物，以掩盖有机化的km。该过程序列决定了岩石存储和传输流体能力的微加密，并且可能在传播有机物向石油的转化中起重要作用。拟议的项目将提高对影响艾伯塔省和不列颠哥伦比亚省特定页岩形成的沉积和埋葬过程的了解。由此产生的知识可能有助于指导这些“非常规储层”中的勘探工作，这有可能导致划定更大的石油和天然气储量，从而对就业，特许权使用费和对加拿大整体经济产生影响。