| 基于有限差分的化学剂平面运移规律数值模拟 |
| |
| 引用本文： | 苟斐斐,刘建军,刘卫东,萧汉敏,罗莉涛. 基于有限差分的化学剂平面运移规律数值模拟[J]. 西南石油大学学报(自然科学版), 2015, 37(6): 112. DOI: 10.11885/j.issn.1674-5086.2015.03.04.09 |
| |
| 作者姓名： | 苟斐斐 刘建军 刘卫东 萧汉敏 罗莉涛 |
| |
| 作者单位： | 1. 中国科学院大学，北京石景山100049；2. 中国科学院渗流流体力学研究所，河北廊坊065007；3. 西南石油大学地球科学与技术学院，四川成都610500；4. 中国石油勘探开发研究院廊坊分院，河北廊坊065007 |
| |
| 基金项目： | 国家自然科学基金（51174170）。 |
| |
| 摘 要： | 在化学驱中，各种化学剂在地层中的浓度对于驱油是极为关键的，理想的情况是合理设计化学剂注入参数（注入浓度、注入量和注入速度），使得地层各处化学剂的浓度接近实验室设计的最佳浓度，从而驱油效率最高。化学剂在地层中除正常的对流外，还会发生扩散和吸咐，而平面渗流中，各处渗流速度的不同，使得化学剂在平面的浓度分布比一维情况复杂得多。依据有限差分法和雅可比迭代方法，根据达西渗流定律确定平面渗流速度场和压力场分布，再根据已求得的速度场结合化学剂运移的对流弥散方程，求解得到了化学剂的浓度场。数值模拟结果给出了不同时刻化学剂在地层中的浓度分布，并针对不同的运移滞后系数、弥散系数和化学剂注入量，分析了这些参数对于化学剂分布的影响。
|
| 关 键 词： | 化学驱 数值模拟 有限差分 耦合方程 运移 |
Numerical Simulation of Chemical Planar Transport Based on Finite#br#Difference Method |
| |
| Gou Feifei,Liu Jianjun,Liu Weidong,Xiao Hanmin,Luo Litao. Numerical Simulation of Chemical Planar Transport Based on Finite#br#Difference Method[J]. Journal of Southwest Petroleum University(Seience & Technology Edition), 2015, 37(6): 112. DOI: 10.11885/j.issn.1674-5086.2015.03.04.09 |
| |
| Authors: | Gou Feifei Liu Jianjun Liu Weidong Xiao Hanmin Luo Litao |
| |
| Affiliation: | 1. University of Chinese Academy of Sciences，Shijingshan，Beijing 100049，China;2. Institute of Porous Flow and Fluid Mechanics，Chinese Academy of Sciences，Langfang，Heibei 065007，China;3. School of Geoscience and Technology，Southwest Petroleum University，Chengdu，Sichuan 610500，China;4. Langfang Branch，Research Institute of Petroleum Exploration & Development，Langfang，Heibei 065007，China |
| |
| Abstract: | In the chemical flooding process，the concentration distribution of chemical agents is essential for the displacement ofoil. The ideal situation would entail carefully designed chemical injection parameters（injection concentration，injection volumeand injection rate）so that the chemical agent concentration in the formation is close to the optimum concentration determinedby laboratory tests，and thus achieving the most efficient oil displacement results. In addition to normal convection of chemicalagents in the formation，diffusion and adsorption will also happen. While for planar percolation flow，the different percolationflow velocity leads to the chemical planar concentration being more complex than that of one dimension. In this paper，based onthe Finite Difference Method（FDM）and Jacobian Method，according to Darcy′s law，planar flow velocity and pressure fieldare determined. And combined with the solved velocity field equation and the chemical agent transport convection-diffusionequation，the concentration field of chemical agents is solved. Simulation results show chemical concentration at the differenttime. It also studies the influence on the distribution of chemical flooding for different parameters including migration-lagcoefficient，dispersion coefficient and the volume of chemical injection. |
| |
| Keywords: | chemical flooding numerical simulation finite difference coupling equation transport |
| 本文献已被 CNKI 等数据库收录！ |
| 点击此处可从《西南石油大学学报(自然科学版)》浏览原始摘要信息 |
|
点击此处可从《西南石油大学学报(自然科学版)》下载全文 |
