基于格子boltzmann方法固井环空介观微间隙气体窜槽研究  

The Study of Cementing Annulus Mesoscopic Micro Clearance Gas Channeling Based on the Lattice Boltzmann

作　　者：王婷婷[1] 赵万春[2] 官兵[2] 

机构地区：[1]东北石油大学电气信息工程学院,黑龙江大庆163318 [2]东北石油大学石油工程学院,黑龙江大庆163318

出　　处：《数学的实践与认识》2013年第24期202-207,共6页Mathematics in Practice and Theory

基　　金：国家自然科学基金(51104032);中石油创新基金(2011D-5006-0212);黑龙江省骨干青年教师计划项目(1253G011)

摘　　要：固井环空微间隙气体窜槽现象直接影响固井质量与油田生产,准确地描述固井环空微间隙气体窜槽的流动规律是有效控制气体窜槽的核心与"瓶颈"问题.从微观粒子运动角度出发,基于格子Boltzmann方法建立了固井环空微间隙气体粒子流动模型.选取大庆油田某区块计算模拟不同环空压差下微间隙内气体粒子流动速度分布规律,计算结果揭示了固井气窜气体粒子在微环间隙内流动的本质,为后续固井气窜问题的研究开辟新的思路.The phenomenon of the cementing annulus micro clearance gas channeling directly influences cement job quality and oilfield production, so accurately describing the flow rule of cementing annulus micro clearance gas channeling is the core and ＂bottleneck＂ problem of controlling gas channeling effectively. From the perspective of the micro particle motion and based on the lattice Boltzmann method, the flow model of cementing annulus micro clearance gas particle is established. Select a block of Daqing Oilfield to calculate and simulate the distribution rule of flow velocity of micro clearance gas particle under different annulus pressure difference. The calculation results reveal the essence of the cementing gas channeling gas particle flowing in micro ring clearance, and new ideas are found out for thc study of the problem about subsequent cementing gas channeling.

关 键 词：环空微间隙 格子BOLTZMANN 固井气窜 粒子流动 

分 类 号：TE256[石油与天然气工程—油气井工程]