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特性测量

• 批准号: 433958-2012
• 负责人: Schmitt, Douglas
• 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: 2012
• 资助国家: 加拿大
• 起止时间: 2012-01-01 至 2013-12-31
• 项目状态: 已结题
• 来源: https://www.nserc-crsng.gc.ca/ase-oro/Details-Detailles_eng.asp?id=511432
• 关键词: Measurements; seismic; properties; grosmont; carbonate

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.

Grosmont 碳酸盐岩和流体的地震特性测量：Grosmont 碳酸盐岩储层含有加拿大 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原位沥青生产技术的功效了解甚少，该油藏目前尚未生产。 进一步开发的一个关键方面也取决于我们能够解释主动重复“4D”地震勘测结果的能力，这些地震勘测试图将昂贵的注入流体的运动绘制到地下。 Laricina Resources Ltd. 最近获得了这样的调查结果，作为从碳酸盐岩中提取高粘性沥青的实验性试点项目的一部分。 然而，生成的延时图像显示了一些不容易解释的神秘结构，主要是因为没有定量了解温度、有效压力和流体含量的变化将如何影响此类岩石的地震特性。 在这里，我们建议调整我们现有的实验设备，以便我们能够对生产的沥青和沥青饱和岩心样品的纵波和横波速度进行初步研究。 这些数据应该提供一个工作基础，可以更好地解释地震成像的趋势，并将导致一个更复杂的项目，旨在更好地整合 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，一名研究员、一名技术员和一名暑期学生将开发新的实验方案并进行一系列实验室测试，以获得数据并评估未来实验的方法。