速度管排液采气工艺选井条件  

Well Selection Conditions of Velocity String Fluid Drainage and Gas Production Technology

作　　者：陈锐 CHEN Rui(Research Institute of Engineering Technology,PetroChina Xinjiang Oilfield Company,Karamay 834000,Xinjiang,China)

机构地区：[1]中国石油新疆油田分公司工程技术研究院,新疆克拉玛依834000

出　　处：《新疆石油天然气》2022年第4期67-73,共7页Xinjiang Oil & Gas

基　　金：中国石油新疆油田分公司科研项目“新疆油田典型井试井解释技术研究及实践”(20211201030700)。

摘　　要：针对产出液凝析油含量高、不适应泡排工艺的气田,优选出速度管排液采气工艺。由于该工艺对选井条件要求比较严格,通过对气井临界携液流量、产液量、产气量、气液比、地层压力、井底流压和气井剩余可采储量等选井因素的分析,确定了速度管排液采气工艺的选井条件。对P2井进行了实例应用分析,得出了该井速度管最优尺寸、有利气液比大小、停喷压力和停喷可采储量,解决了气井通过外排、内排来维持生产的现状,减少天然气放喷损失,同时根除了排液不及时压死气井的危险,为以后实施该工艺选井打下基础。For gas field with high condensate oil content in its produced fluid and unsuitable for foam carrier technology,velocity string fluid drainage and gas production technology is selected.Because the technology has strict requirements for well selection conditions,the well selection conditions for the fluid drainage gas production technology of velocity string have been determined by analyzing such factors as critical liquid-carrying flow rate,liquid production,gas production,gas-liquid ratio,formation pressure,bottom hole flow pressure and remaining recoverable reserves of gas well.After Well P2 was subjected to an application analysis,the optimal size of velocity string,favorable gas-liquid ratio,unflowing pressure and unflowing recoverable reserves have been obtained.It solves the problem that the gas well maintains the production status through external and internal drainage,reduces the loss of natural gas blowout,and eliminates the risk of killing the gas well without timely drainage,which lays a solid foundation for the well selection conditions of this technology in the future.

关 键 词：速度管 排液采气 选井条件 节点分析 凝析气藏 

分 类 号：TE377[石油与天然气工程—油气田开发工程]