摘要
附加流速法是适应于深水井控的一种新压井方法。针对深水钻井和井控的特点,对附加流速法的整个压井过程进行详细研究,推导出要实现安全压井所需要满足的不等式方程,并在此基础上建立目标函数和约束条件,应用非线性规划理论,结合现场深水井实例,给出最优循环流速及附加流速比的计算方法,为深水井控的压井施工提供理论依据。
Additional flux is a novel killing method suitable for deepwater well control. In response to the characteristics of deep water drilling and well control, this paper studies in detail the whole well killing process with additional flux, and deduces the inequal- ity to achieve safe killing operation also. On this basis, objective function and constraint condition are developed, the calculation method of optimal circulation velocity and additional flow rate ratio is obtained with integration of nonlinear programming theory and field case. The paper provides theoretical basis for actual well killing operation of deepwater-well control.
出处
《石油钻采工艺》
CAS
CSCD
北大核心
2008年第5期60-63,共4页
Oil Drilling & Production Technology
基金
国家“863”计划重大项目课题“深水钻完井关键技术”(项目编号:2006AA09A106)
教育部博士点基金“深水钻井井控水力参数计算理论”(项目编号:20060425502)
山东省自然基金“含天然气水合物相变的三相多组分多相流动理论”(项目编号:Z2007A01)联合资助。
关键词
深水
压井
附加流速法
循环流量
附加流速比
deepwater
well killing
additional flux
circulation rate
additional flow rate ratio
