Sedimentology and reservoir characterization of the Lower Mississippian Pekisko formation, Hawk Hills and Swan Hills areas, Alberta

近年来，由于钻井和完井技术的重大进步，加拿大西部的石油勘探和开发活动经历了一次重大复苏。许多在低渗透储层岩石中拥有大量石油储量的地层，如Alberta的密西西比时代Pekisko地层，正在重新研究其使用“最先进的”水平钻井和多级水力压裂技术开发的潜力。为了在经济上取得成功，这些资源区需要彻底了解地层的地层和沉积学，以及详细的储层特征。拟议的项目将通过调查艾伯塔省Hawk Hills和Swan Hills地区的地层，为Pekisko资源的开发做出贡献。该项目是与阿尔伯塔省卡尔加里的ARC资源有限公司合作的。将采用多学科方法，包括(1)描述和解释碳酸盐岩台地矿床的沉积模式；(2)描述沉积后特征并解释其形成顺序；(3)利用地球化学技术评估生物过程、古温温和岩石-水相互作用对沉积后蚀变的影响；(4)评估控制储层岩石孔隙度和渗透率的因素。该项目的结果将有助于完善巨大的Pekisko碳酸盐岩台地的演化和密西西比石油储层岩石的起源的地质模型。ARC资源公司和其他公司可以利用这些结果更有效、更经济地开发Pekisko组的资源层。新的勘探和开发活动将通过创造就业机会和经济增长对加拿大产生积极影响。该项目将通过为高素质人员提供与职业相关的培训，帮助解决在加拿大石油工业工作的地球科学家人数减少的趋势。

Petroleum exploration and development activity in western Canada has undergone a major revival in recent years as the result of significant advances in drilling and completion technology. Many formations that have large oil-in-place reserves in low permeability reservoir rocks, such as the Mississippian-age Pekisko Formation in Alberta, are being re-examined for their potential to be developed using "state-of-the-art" horizontal drilling and multi-stage hydraulic fracturing. These resource plays require a thorough understanding of the stratigraphy and sedimentology of the formation and detailed reservoir characterization in order to be economically successful. The proposed project will contribute to the development of Pekisko resource plays by investigating the formation in the Hawk Hills and Swan Hills areas in Alberta. The project is a partnership with ARC Resources Ltd. in Calgary, Alberta. A multi-disciplinary approach will be used which includes (1) characterizing and interpreting the sedimentation pattern of the carbonate platform deposits, (2) describing the post-depositional features and interpreting their sequence of formation, (3) using geochemical techniques to assess the influence of biological processes, paleotemperature and rock-water interactions on post-depositional alteration, and (4) evaluating the factors that control porosity and permeability in reservoir rocks. The results of the project will help refine geological models for the evolution of the vast Pekisko carbonate platform and for the origin of Mississippian petroleum reservoir rocks. These results may be used by ARC Resources and other companies to more effectively and economically develop their resource plays in the Pekisko Formation. New exploration and development activities will have a positive effect for Canada through job creation and economic growth. The project will help to address the trend of decreasing numbers of geoscientists working in the Canadian petroleum industry by providing career-related training of highly qualified personnel.