The influence of diagenetic microfabric on oil sands behaviour
The influence of diagenetic microfabric on oil sands behaviour
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DOI：
10.1139/e82-067
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发表时间：
1982-04
影响因子：
1.4
通讯作者：
D. J. Barnes;M. Dusseault
中科院分区：
文献类型：
--
作者：
D. J. Barnes;M. Dusseault
压力溶解和自生晶体过度生长的成岩过程改变了阿尔伯塔东北部的含砂油砂材料，形成孔隙度降低和互锁颗粒接触的砂。在扫描电子显微镜下对试样的检查表明，材料中的大量晶粒接触已经从切向改变为长形和凹凸形。除了不常见的孤立带外，这些材料不含真正的颗粒间矿物胶结物。在实验室中对McMurray和大急流城地层（两个阿尔伯塔含油地层）的无油样品进行了强度、压缩性和指数测试（密度、粒度）。结果表明，颗粒接触面积的增加和颗粒互锁使材料的压缩性降低，抗剪强度增加，并讨论了孔隙度、矿物学、粒度和成岩蚀变程度对颗粒材料性能的影响。
The diagenetic processes of pressure solution and authigenic crystal overgrowth have altered the arenaceous oil sand materials of northeastern Alberta, creating sands with a decreased porosity and interlocking grain contacts. Examination of specimens in the scanning electron microscope indicates that a large number of the grain contacts in the materials have been altered from tangential to long and concavo-convex. Except for infrequent isolated bands, the materials are free from true grain-to-grain mineral cement.Strength, compressibility, and index tests (density, grain size) were performed in the laboratory on oil-free samples of the McMurray and Grand Rapids Formations, two of the Alberta oil-bearing strata. Results indicate that increased grain contact area and grain interlock cause a reduction in the compressibility and an increase in the shear strength of the materials.The influence of porosity, mineralogy, grain size, and degree of diagenetic alteration on the behaviour of granular materials is dis...