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参加活动——你发一篇SCI, 论坛就以你的名义送500阳光币给大家, 同时奖励你100阳光币 题目:An Experimental Study of Oil Secondary Migration in a Three Dimensional Tilted Porous Medium 作者:闫建钊(Jianzhao Yan)等 刊物名称:AAPG Bulletin 影响因子:1.9 摘要:A three-dimensional physical experiment was carried out to study the oil secondary migration under an impermeable inclined cap. Light colored oil was released continuously at a slow rate of about 0.1 ml/min from a point at the basis of initially water saturated porous model. With the buoyancy as a primary driven force, a vertical cylindrical shape of oil migration pathway was observed first and then a layer-shaped of lateral migration pathway beneath the top inclined sealing plate once the oil cluster had reached the top cap. The Magnetic Resonance Imaging (MRI) was used to observe the migration processes – e.g. morphology of the migration pathway, intermittency of oil bubbles and variation of oil saturation within the migration paths. Results show that the snap-off phenomenon (related to fast local imbibition processes) occurred more often during vertical migration than it is during lateral. The lateral migration pathway which parallels to the top inclined cap has a typical vertical thickness of 2-4 cm (i.e. roughly 40-80 pores). This thickness is consistent with the prediction derived from the scaling laws related to the pore size and the Bond number. Along the lateral migration direction, the sectional area and the horizontal width of the migration pathway fluctuate drastically while the average oil saturation along the pathway remains almost the same. After stopping initial oil injection, the sectional area of migration pathway shrinks significantly. Therefore, it is believed that this drastic shrinking of the migration pathway is the main reason why only relative small volume of oil and gas has been lost during the secondary migration. 2010.8.31投稿,2011.7.16临时接受,2011.8.22提交修改稿,2011.9.9最终接受,2012.5出版 热烈祝贺阳光石油论坛会员changge 发一篇SCI,阳光石油论坛散阳光币500,奖励changge 阳光币100,大家在楼下回复。每楼阳光+5,散完为止。每个会员加阳光币一次。
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