大尺寸可视化酸液指进模拟装置研制及应用

发布时间：2018-06-19 04:49

本文选题：指进 + 可视化　；参考：《西南石油大学学报(自然科学版)》2017年02期

【摘要】：裂缝中的酸液指进是酸压过程中发生的重要现象,目前多采用模拟手段进行研究。然而现有物理模拟实验与实际酸压过程缺乏必要的相似性。鉴于此,建立相似准则并确定相似比例尺,研制出了大尺寸可视化物理模拟装置并进行了模拟实验。与前人类似装置相比,该模拟装置具有三板双缝的结构特点,不仅可考察不同黏度差、密度差以及不同注酸流量、不同温度下的指进行为,还可进行酸岩反应、酸液滤失和不同裂缝倾角影响下的中低压酸液指进可视化模拟。模拟实验发现酸液指进形态复杂,需要在定性研究的基础上,对其演化规律进行定量表征。
[Abstract]:Acid fingering in fracture is an important phenomenon in acid compression process. However, there is no necessary similarity between the existing physical simulation experiments and the actual acid compression process. In view of this, the similarity criterion is established and the similarity scale is determined. A large scale visual physical simulation device is developed and the simulation experiment is carried out. Compared with other similar devices, the simulator has the structural characteristics of three plates and two seams. It can not only examine different viscosity difference, density difference, different acid injection flow rate, but also acid-rock reaction at different temperature. Visual simulation of medium and low pressure acid flow under the influence of acid filtration loss and different fracture dip angles. The simulation experiments show that the fingering morphology of acid is complex, which needs to be quantitatively characterized on the basis of qualitative study.
【作者单位】： "油气藏地质及开发工程"国家重点实验室·西南石油大学;中海石油能源发展股份有限公司工程技术分公司;中国石化石油勘探开发研究院;
【基金】：教育部高等学校博士学科点专项科研基金(20095121110001) 国家自然科学基金(51074134);国家自然科学基金青年基金(51204138)
【分类号】：TE934.3

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