附加流速法循环流量及附加流速比的最优规划

Optimal programing of circulation rate and additional flow rate ratio with additional flux method

王志远 孙宝 高永海 张春娜 胡伟杰

WANG Zhiyuan SUN Baojiang GAO Yonghai ZHANG Chunna HU Weijie

中国石油大学，山东东营　257061 冀东油田土地管理处，河北唐海　063200 华北油田公司油气井测试公司，河北廊坊　065007

China University of Petroleum, Dongying 257061, China Department of Land Management, Jidong oil field, Tanghai 063200, China Well Testing Company of Huabei Oilfield, Langfang 065007, China

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?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 inequality 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.