Analysis of the pressure responses in Grosmont Carbonates Formation to steam injection considering a fractal geometry for the fractured-vuggy system

考虑缝洞系统分形几何的 Grosmont 碳酸盐岩地层对蒸汽注入的压力响应分析

• 批准号: 491893-2015
• 负责人: Hejazi, SeyedHossein
• 金额: $ 1.82万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 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=587126
• 关键词: Analysis; pressure; responses; Grosmont; Carbonates

Grosmont Formations in the Northern Alberta are fractured carbonates with an estimated 508 billion barrels of bitumen in place. In these carbonate reservoirs, the presence of natural fractures and vugs is a characteristic added to the challenge for oil production, in addition to of producing the highly viscous bitumen, which may be further aggravated with the existence of vugs. Therefore, a good understanding of the interaction among matrix, fractures, and vugs and their correct characterization are essential for the effective oil production. In this work, we propose a technique to characterize the fracture network through analyzing the pressure responses resulted from the steam injection. The industrial partner can use such a characterization for the design of an efficient recovery process. The outcome of this work will increase our understanding of carbonate heavy oil resources where there is a need to characterize and understand different physical mechanisms involved, before and after field developments. This study will enlighten the characteristics of bituminous carbonate reservoirs, thus, will facilitate the development of oil production from this vast resources in Canada.

阿尔伯塔北方的格拉斯蒙地层是裂缝性碳酸盐岩，估计有5080亿桶石油。 沥青到位。在这些碳酸盐岩储层中，天然裂缝和溶洞的存在是一个特征 除了生产高粘度沥青之外，这增加了石油生产的挑战， 随着洞穴的存在而进一步恶化。因此，很好地理解 基质、裂缝和溶洞及其正确的表征对于有效的石油生产是必不可少的。在 在这项工作中，我们提出了一种通过分析压力来表征裂缝网络的技术， 反应是由蒸汽注入引起的。工业合作伙伴可以使用这样的表征， 设计高效的回收流程。这一工作的结果将增加我们对碳酸盐的了解 需要描述和理解不同物理机制的重油资源 在实地开发之前和之后。本文的研究对沥青的特性有一定的启示 因此，碳酸盐岩储层将促进加拿大这一巨大资源的石油生产开发。