Advancing rate-transient analysis for improved characterization and forecasting of Canada's unconventional light oil reservoirs

推进速率瞬态分析，以改进加拿大非常规轻质油藏的表征和预测

• 批准号: 501135-2016
• 负责人: Clarkson, Christopher
• 金额: $ 13.91万
• 依托单位: University of Calgary
• 依托单位国家: 加拿大
• 项目类别: Collaborative Research and Development Grants
• 财政年份: 2018
• 资助国家: 加拿大
• 起止时间: 2018-01-01 至 2019-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=647800
• 关键词: Advancing; rate; transient; analysis; improved

Multi-fractured horizontal well (MFHW) technology has enabled commercial exploitation of low-permeability (tight) unconventional light oil (ULO) reservoirs in North America. In Western Canada, unconventional plays made commercial by this technology are currently the most important hydrocarbon reservoir targets for the Canadian oil industry; some examples include Montney siltstone/shale (BC/Alberta), Duvernay shale (Alberta), and the Bakken siltstone/shale (Saskatchewan), amongst others. ** The most important data collected from MFHWs is production and pressure data while producing. These data are used by the oil industry to 1) evaluate those reservoir and hydraulic fracture properties controlling flow to the well 2) forecast future well production, amongst other uses. This information is used in turn for capital planning and reserves estimation, two critical functions of petroleum engineering professionals employed in industry. Production data analysis may be performed using numerical, empirical and analytical methods. Numerical simulation methods, while rigorous, are time-intensive to setup and run, precluding their application to a select few wells. Empirical methods do not have a physical basis, but are easy to apply. Analytical methods, which represent a compromise between physical rigor and simplicity, are extensively used by the industry. However, in application to MFHWs producing from ULO reservoirs, commercially-available analytical methods do not account for the complexities of flow to MFHWs.** This research proposal focuses on the development of simple-yet-rigorous modeling tools that account for the complexities of flow to MFHWs completed in ULO reservoirs over their life span. Lab-based techniques to constrain analytical/semi-analytical model inputs will also be researched. An important objective is to provide the models and methods to commercial RTA software providers whose software is widely used in industry. The value added to the industry is improved characterization of their wells and reservoirs, leading to more accurate production forecasting and better-informed capital planning.

多压裂水平井(MFHW)技术使北美低渗透(致密)非常规轻质油(ULO)油藏的商业开采成为可能。在加拿大西部，通过这项技术进行商业开发的非常规业务目前是加拿大石油行业最重要的油气藏目标；一些例子包括蒙特尼粉砂岩/页岩(卑诗省/艾伯塔省)、杜维奈页岩(艾伯塔省)和巴肯粉砂岩/页岩(萨斯喀彻温省)等。**从MFHW收集的最重要的数据是生产过程中的产量和压力数据。这些数据被石油行业用来1)评估这些储层和水力裂缝特性，控制流向油井的流量2)预测未来油井产量，以及其他用途。这些信息又被用于资本规划和储量估计，这是工业中雇用的石油工程专业人员的两项关键职能。可以使用数值、经验和分析方法进行生产数据分析。数值模拟方法虽然严格，但设置和运行都是时间密集型的，无法将其应用于选定的几口井。经验方法没有物理基础，但很容易应用。分析方法代表了物理严谨性和简单性之间的折衷，被行业广泛使用。然而，在应用于从ULO油藏生产的MFHW时，商业上可用的分析方法没有考虑流向MFHW的复杂性。**本研究方案侧重于开发简单但严格的建模工具，以解释在ULO油藏中完成的MFHW在其生命周期内流向MFHW的复杂性。还将研究以实验室为基础的限制分析/半分析模型输入的技术。一个重要的目标是为商业RTA软件供应商提供模型和方法，这些供应商的软件在工业上得到了广泛的应用。该行业的附加值是改善了对油井和储集层的描述，从而实现了更准确的产量预测和更知情的资本规划。