Measurements of the seismic properties of grosmont carbonate rock and fluids

格罗斯蒙特碳酸盐岩石和流体的地震性质测量：格罗斯蒙特碳酸盐储集层蕴藏着加拿大25%以上的沥青资源。尽管有这种潜力，但由于对复杂的地质结构或现代现场沥青生产技术的有效性缺乏了解，目前该油气藏没有生产。进一步开发的一个关键方面也取决于我们是否有能力解释活跃的重复4D地震调查的结果，这些地震调查试图绘制昂贵的注入流体进入地下的运动图。作为从碳酸盐岩中提取高粘度沥青的试验性试点项目的一部分，Laricina Resources Ltd.最近获得了这样的调查。然而，产生的时间推移图像显示了一些神秘的结构，这些结构不太容易解释，主要是因为没有定量地了解温度、有效压力和流体含量的变化将如何影响此类岩石的地震性质。在这里，我们建议改装我们现有的实验设备，使我们能够对生产的沥青和沥青饱和岩心样品的P波和S波速进行初步调查。这些数据应该为更好地解释地震成像的趋势提供工作基础，并将导致一个更复杂的项目，该项目寻求更好地整合Laricina已经收集的广泛和现有的测井、岩心和地震数据库。在该项目中，一名研究助理、一名技术人员和一名暑期学生将制定新的实验方案，并进行一系列实验室测试，以获得数据并为未来的实验评估方法。

Measurements of the Seismic Properties of Grosmont Carbonate Rock and Fluids: The Grosmont carbonate reservoir contains upwards of 25% of Canada's bitumen resource. Despite this potential, there is no current production from this reservoir because of a poor understanding of the complex geological structure or the efficacy of modern in situ bitumen production techniques. One key aspect to further development hinges, too, on our ability to be able to interpret the results of active repeated '4D' seismic surveys that attempt to map the motion of expensive injected fluids into the subsurface. Such a survey has recently been obtained by Laricina Resources Ltd. as part of an experimental pilot project to extract highly viscous bitumen from the carbonate rocks. However, the time-lapse images produced show some enigmatic structures that are not so easily interpreted primarily because there is no quantitative understanding of how changes in temperature, effective pressure, and fluid content will affect the seismic properties of such rock. Here, we propose to adapt our existing experimental equipment to allow us to carry initial investigations of the P and S wave velocity of both produced bitumen and bitumen saturated core samples. These data should provide a working basis from which trends in the seismic imaging can be better interpreted and will lead to a more involved project that seeks to better integrate the extensive and existing log, core, and seismic data base already collected by Laricina. In the project, a research associate, a technician, and a summer student will develop the new experimental protocols and carry out a series of laboratory tests to obtain both data and to evaluate the methodology for future experiments.