【摘要】 应用复杂系统控制理论,建立了新的反映储集层、井筒、地面安全及经济效益最大化的凝析气井单井动态优化控制模型,并给出了模型的求解方法。该模型以储集层多相渗流、井筒多相管流、井下与地面节流过程的相关方程为状态方程,将井筒连续携液、储集层临界破坏、井筒及地面装置临界冲蚀、井筒与地面水合物生成等作为约束条件。该模型的建立和求解,解决了凝析气井生产过程中多变量、多重反馈控制下的协同优化控制问题。更多还原

【Abstract】 A model for optimizing and controlling condensate gas well performance is developed by applying the theory of complex system control, which can reflect the reservoir, wellbore and surface safety as well as maximizing economic benefit, including the approach for the model solution, by taking the equations related to reservoir multiphase flow, wellbore multiphase fluid, well bottom and surface throttling as the state equation, and taking wellbore fluid loading, reservoir critical damage, equipment critical corroding and hydrate control of wellbore and surface as restriction condition. The development and solution of this model could deal with the co-optimizing and co-controlling problems under the multifactor and multi-feedback during condensate gas well production.更多还原