天然气与石油2017，Vol.35Issue(5)：60-65,6.DOI:10.3969/j.issn.1006-5539.2017.05.012
水平井分段注汽调剖方法研究及影响因素分析
Study of the Profile Control Method in Horizontal Well Steam Injection Process and Analysis of Influencing Factors
吴宁宁1
作者信息
- 1. 中国石油大学(华东)储运与建筑工程学院, 山东 青岛 266580
- 折叠
摘要
Abstract
During the steam injection of horizontal wells, the flux along horizontal wells is decreasing, and physical parameters of steam are constantly changing. In addition, the flow resistance in steam-injection pipes and the anisotropic permeability in the reservoir result in the serious inhomogeneity of the steam absorption profile. In order to achieve uniform steam injection of horizontal wells, this study establishes the number and location of discharge holes on each injector according to steam injection parameters and well conditions. The throttle pressure drop, flow rate and dryness of flow regulators are determined by using this single-tube steam injection model. The number of discharge holes, throttle pressure drop, dryness and suction volume in the process of single-pipe segmented injection allocation are analyzed in different conditions. The result shows that the lower the steam injection volume is, the longer the steam injection section is, and the smaller the permeability is, the greater drop of the dryness is. This optimization method of steam injection string has been applied to basically realize the effect of uniform steam injection.关键词
水平井/配注器/泄流孔/均匀配注Key words
Horizontal well/Flow regulator/Drainage hole/Uniform steam injection引用本文复制引用
吴宁宁..水平井分段注汽调剖方法研究及影响因素分析[J].天然气与石油,2017,35(5):60-65,6.
