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| 基于有限元法的高压挤压砾石充填数值模拟 | |
| 引用本文： | 王伟章,闫相祯,陈宗毅.基于有限元法的高压挤压砾石充填数值模拟[J].潍坊学院学报,2011,11(6):94-98. |
| 作者姓名： | 王伟章 闫相祯 陈宗毅 |
| 作者单位： | 1. 潍坊学院,山东潍坊,261061 2. 中国石油大学,山东青岛,266000 3. 胜利油田采油工艺研究院,山东东营,257000 |
| 基金项目： | 国家科技重大专项基金项目 |
| 摘 要： | 从疏松砂岩的岩石特性以及施工工艺角度分析了影响高压挤压砾石充填效果的各种可能因素。在此基础上，采用有限元分析软件针对射孔井进行了数值模拟，模拟结果显示射孔沿着最大水平主应力方向，有助于裂缝的产生。在数值模拟的基础上分析了高压挤压过程中疏松砂岩的启裂机理，认为压密砂层的破裂压力即为高压挤压砾石充填的启裂压力，其裂缝形态，直接影响着近井地带的裂缝形态。 |
| 关 键 词： | 高压充填 有限元法 启裂 数值模拟 |
Numerical Simulation in High--Pressure Gravel Packing Based on the Finite Element Method |
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| WANG Wei-zhang,YAN Xiang-zhen,CHEN Zong-yi.Numerical Simulation in High--Pressure Gravel Packing Based on the Finite Element Method[J].Journal of Weifang University,2011,11(6):94-98. | |
| Authors: | WANG Wei-zhang YAN Xiang-zhen CHEN Zong-yi |
| Institution: | WANG Wei-zhang1,YAN Xiang-zhen2,CHEN Zong-yi3(1.Weifang University,Weifang 261061,China,2.China University of Petroleum,Qingdao 266000,3.Oil Production Research Institute of Shengli Oilfield Branch Company,Dongying 257000,China) |
| Abstract: | The thesis deals with all possible factors that influence high--pressure gravel packing from the angle of rock features of loose sandstone and construction technology. And then numerically simulate given naked eye wells and perforated wells by means of finite element analysis software. The simulations suggest that perforation along the direction of maximum principal stress helps occurrence of the cracks. Cracking mechanism of the loose sandstone in the course of high--pressure packing is also discussed on the basis of numerical simulation, with conclusion that bursting pressure of the compacted sand layer is the crack initiation pressure of high--pressure gravel packing, and its crack form directly influences that round the well. |
| Keywords: | high--pressure gravel packing finite element method crack initiation numerical simulation |
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