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首页> 外文会议>International Symposium of the Society of Core Analysts >PHYSICAL MODEL EXPERIMENTS TO EVALUATE THE EFFECT OF WETTABILITY AND FRACTURES ON THE PERFORMANCE OF THE GAS ASSISTED GRAVITY DRAINAGE (GAGD) PROCESS
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PHYSICAL MODEL EXPERIMENTS TO EVALUATE THE EFFECT OF WETTABILITY AND FRACTURES ON THE PERFORMANCE OF THE GAS ASSISTED GRAVITY DRAINAGE (GAGD) PROCESS

机译：物理模型实验来评价润湿性和裂缝的作用，对气体辅助重力泄油的性能（GAGD）工艺

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Previous experimental work on the Gas Assisted Gravity Drainage (GAGD) process demonstrated its effectiveness of improving the oil recovery when applied in water-wet porous media. The current research is an extension and is focused on evaluating the effect of the wettability of the porous medium and the presence of a (vertical) fracture on the GAGD performance. The effect of the injection strategy (secondary/tertiary mode) on the oil recovery was also evaluated. In the physical model experiments a Hele Shaw type model was used with glass beads/silica sand as the porous medium. Silanization with dimethydichlorosilane was used to alter the wettability of the porous medium from water- wet to oil-wet. The experiments showed a significant improvement of the oil recovery in the oil-wet experiments versus the water-wet runs, both in the secondary as well as the tertiary mode. The experiments in which the presence of a fracture was simulated have also shown the positive effect of a vertical fracture on the GAGD oil recovery.
机译：以前关于气体辅助重力排水（GAGD）过程的实验工作证明了在水湿多孔介质中应用时改善油回收的有效性。目前的研究是延伸，重点是评估多孔介质的润湿性的效果以及对GAGD性能的（垂直）骨折的存在。还评估了注射策略（二级/三级模式）对油回收的影响。在物理模型实验中，Hele Shaw型模型与玻璃珠/硅砂作为多孔介质一起使用。用二甲基二氯硅烷硅烷化用于改变多孔介质的润湿性从水湿到油湿。该实验表明，在次级和三级模式下，对油湿实验中的油湿共实验中的储存的显着改善。模拟骨折存在的实验还显示出垂直骨折对GAGD油回收的正效应。

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