学术报告

报告题目： Extending Digital Rocks to Combined Time, Space and Process Dimensions

报 告 人： Gary Couples  教授

时    间： 2019年3月29日（周五）上午9:30

地    点：国家重点实验室A403学术报告厅

报告人单位：Heriot-Watt University, UK

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报告内容：

Digital rocks are 3D models depicting the pore/grain scale textural arrangement of void spaces and solid framework of a rock. Such models are widely used to calculate fluid flow, and efforts are underway (in many research groups) to extend those methods for calculations of: resistivity, NMR and radar responses, thermal conduction, poro-mechanics and acoustics. These numerical approaches provide a phenomenological understanding of the process basis underlying real-world measurements (e.g. wireline), and measurement obtained via laboratory measurements (e.g. core analysis). Because digital rocks provide a critical link between rock textures and properties, it is possible to ‘play’ with textures to introduce (or remove) the textural effects of natural processes, such as diagenesis and deformation, following general rules derived from many decades of petrographic studies. This capability allows any digital rock to be extended forwards or backwards through its ‘process space’, enabling the estimation of property histories even though we do not have a physical sample. The growing capabilities of digital rock methods open a potential for using them as a key link in all forms of subsurface process investigations, thus ensuring that every petrophysical model is rooted to the same fundamental phenomenological source.

报告人简介：

Prof. Gary D. Couples earned a Bachelor degree at Texas A&M (1974), a Master degree at Rice (1977), and a PhD at Texas A&M (1986). Following 15 years of industrial experience, he joined the academic world, first at Glasgow Univ, and now at Heriot-Watt. He has been a Distinguished Lecturer for the SPE and teaches both academically and in the professional setting in many international locations. Currently, Prof. Couples leads the Geomaterials research group at Heriot-Watt University, which seeks to understand, and quantify, subsurface processes at many length- and time-scales. He is the holder of over 170 research outputs. These studies employ a range of simulation methods, laboratory experimentation, and geo-history investigations, and seek to provide the context and circumstances by which rocks, and their textural characteristics, are altered.

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2019年03月25日