Measuring and modeling wettability of the Montney/Doig resource play and investigating its functional dependence on other petrophysical properties

测量 Montney/Doig 资源区的润湿性并对其进行建模，并研究其对其他岩石物理特性的功能依赖性

• 批准号: 512238-2017
• 负责人: Dehghanpour, Hassan
• 金额: $ 1.82万
• 依托单位: University of Alberta
• 依托单位国家: 加拿大
• 项目类别: Engage Grants Program
• 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=640648
• 关键词: Measuring; modeling; wettability; Montney; Doig

Recent advances in horizontal drilling and multi-stage hydraulic fracturing have unlocked unconventional hydrocarbon resources for oil and gas recovery in Canada and the United States. The successful and sustainable development of such resources requires correct characterization of the reservoir properties. Knowing the properties such as permeability, porosity, and wettability is critical for reserve estimation, production forecasting, and designing optimum fracturing and treatment fluids. Specifically, the wettability of reservoir rock is a critical parameter for estimating the recoverable hydrocarbon in place and for understanding the interactions between reservoir rock and fracturing fluids. However, measuring wettability and other petrophysical properties of unconventional rocks is challenging since their permeability (flow conductance) is very low, and they commonly contain clay minerals and organic materials. An example of enormous unconventional resource is the Montney Formation located in the Western Canadian Sedimentary Basin. The objective of the proposed research is to determine the wettability of the Montney Formation, and its functional dependence on other petrophysical and petrographic properties. The research will be conducted in five phases. Phase 1 will interpret the properties of the Montney core samples, measured in the laboratory including mineralogy, total organic carbon, and pore structure, and also the parameters measured by downhole logging tools. Phase 2 and 3 will evaluate wettability of the samples by conducting contact angle and imbibition experiments. Phase 4 will investigate the existence of possible correlations between the wettability and other petrophysical data. Finally, in Phase 5 a scaling analysis will be performed to upscale the measured imbibition data to estimate field-scale oil recovery as a result of counter-current imbibition during the shut-in periods after fracturing operations. The results of this research will help the industry to estimate the initial recoverable hydrocarbon in the Montney Formation, and to optimize the formulation of fracturing water for minimizing water consumption and for maximizing hydrocarbon recovery.

水平钻井和多级水力压裂的最新进展为加拿大和美国的石油和天然气开采释放了非常规碳氢化合物资源。此类资源的成功和可持续开发需要正确描述储层特性。了解渗透率、孔隙度和润湿性等特性对于储量估算、产量预测以及设计最佳压裂和处理液至关重要。具体而言，储层岩石的润湿性是估算当地可采油气量以及了解储层岩石与压裂液之间相互作用的关键参数。然而，测量非常规岩石的润湿性和其他岩石物理性质具有挑战性，因为它们的渗透性（流导）非常低，并且通常含有粘土矿物和有机材料。巨大的非常规资源的一个例子是位于加拿大西部沉积盆地的蒙特尼地层。拟议研究的目的是确定蒙特尼地层的润湿性及其对其他岩石物理和岩石学特性的功能依赖性。该研究将分五个阶段进行。第一阶段将解释实验室测量的蒙特尼岩心样本的特性，包括矿物学、总有机碳和孔隙结构，以及井下测井工具测量的参数。第 2 阶段和第 3 阶段将通过接触角和吸入实验来评估样品的润湿性。第四阶段将研究润湿性和其他岩石物理数据之间是否存在可能的相关性。最后，在第 5 阶段，将进行缩放分析，以升级测得的渗吸数据，以估计压裂作业后关井期间逆流渗吸导致的油田规模石油采收率。这项研究的结果将帮助业界估计 Montney 地层中的初始可采碳氢化合物，并优化压裂水配方，以最大限度地减少水消耗并最大限度地提高碳氢化合物采收率。