Geomechanics of Montney unconventional hydrocarbon source rock - From fundamental micro-mechanical characterization of the rock to well and multi-well scale modelling

蒙特尼非常规烃源岩的地质力学 - 从岩石的基本微观力学表征到井和多井尺度建模

• 批准号: 543894-2019
• 负责人: Grasselli, GiovanniG
• 金额: $ 19.38万
• 依托单位: University of Toronto
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2022
• 资助国家: 加拿大
• 起止时间: 2022-01-01 至 2023-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=748849
• 关键词: Geomechanics; Montney; unconventional; hydrocarbon; source

The significant surge in hydrocarbon production from unconventional resources in the past decade is largely due to the technological advances in horizontal drilling and hydraulic fracturing (i.e., fracking), which made it possible to extract hydrocarbon from low-permeability (tight) reservoirs formerly inaccessible or uneconomical to exploit, such as the Triassic Montney formation sitting on the Alberta-British Columbia boundary, northwest of Edmonton, which is now considered one of North America's premier natural shale gas resource plays. This CRD project will combine advanced numerical simulations, innovative lab experimentations, and field data to develop more reliable geomechanics-based approaches to understand the reservoir response at all stages, from exploration to production. These approaches will improve the industry's ability to accurately simulate operations in the Montney formation, with the largest share owned by our industry partner Petronas Canada. Furthermore, we propose to add values to Petronas Canada's surface and downhole seismic recordings of microseismic events associated with fracking by improving source characterization (location/origin time/mechanism) based on available 3D seismic background models. More accurate source locations will help refine the underlying fracture networks, while the additional source mechanisms will be used to indicate the brittle failure types in the reservoir in response to stimulation. The research will (i) develop a methodology for the geomechanical characterization of the Montney source rock; (ii) optimize the design of proppant emplacement using a lab calibrated numerical model; and (iii) minimize the risk associated with induced seismicity by optimizing key controlling stimulation and production parameters.Focusing on combining fundamental rock mechanics principles with geophysics imaging, this research project will advance the understanding of the role of pre-existing and hydraulically-induced fractures and geological heterogeneities on the reservoir response under changing conditions associated with the various stages of development, from well completion, to stimulation, and then to production.

在过去十年中，来自非常规资源的碳氢化合物产生的显着激增主要是由于水平钻孔和液压压裂（即压裂）的技术进步，这使得从低渗透率（紧密）储层中提取碳氢化合物是可能的剥削的不经济，例如位于埃德蒙顿西北部艾伯塔省 - 英国哥伦比亚边界上的三叠纪蒙特尼组，现在被认为是北美主要的天然页岩气资源游戏之一。这个CRD项目将结合先进的数值模拟，创新的实验室实验和现场数据，以开发更可靠的基于地质力学的方法，以了解从勘探到生产的各个阶段的储层响应。这些方法将提高行业在蒙特尼组中准确模拟运营的能力，而我们的行业合作伙伴加拿大Petronas拥有最大的份额。此外，我们建议根据可用的3D地震背景模型改善源表征（位置/来源时间/机制），将与压裂相关的微震震事件的加拿大石油表面和井下地震记录增加。更准确的源位置将有助于完善潜在的断裂网络，而其他源机制将用于指示响应刺激的储层中的脆性故障类型。该研究将（i）开发一种用于Montney Source Rock的地质力学表征的方法； （ii）使用实验室校准的数值模型优化支撑剂的设计； （iii）通过优化关键控制刺激和生产参数来最大程度地降低与诱导的地震性相关的风险。将基本岩石力学原理与地球物理成像结合起来，该研究项目将促进对预先存在和液压诱导的骨折的作用的理解在与开发的各个阶段相关的变化条件下，从良好完成，刺激到生产的变化阶段，储层响应的地质异质性和地质异质性。