筛管悬挂器投球下落速度计算方法  

Discussions about the Computational Methods of Tripping Ball Drop Speed in Liner Hanger

作　　者：杨文领[1] 何玉发[1] 张恒[2] 陈绍伟[1] 

机构地区：[1]西南石油大学机电工程学院,四川成都610500 [2]大港油田钻采工艺研究院,天津300280

出　　处：《石油化工设备》2007年第B08期24-26,共3页Petro-Chemical Equipment

摘　　要：在使用筛管悬挂器完井时,正确计算憋压球下落速度,进而较准确地估算球下落到球座的时间,有助于提高悬挂器坐挂的成功率。由于没有统一的憋压球下落速度计算方法,将斯托克斯定律、表观粘度计算法和牛顿-雷廷格公式3种计算方法进行了比较,并通过实例验证确定出使用牛顿-雷廷格公式计算憋压球下落速度最为准确。In the screen well completion with liner hanger,calculation of drop speed of tripping ball correctly will be helpful to estimate the time of ball dropping to the seat,which will be helpful to enhance the banger set success ratio. At present there is not a unified computational method of ball drop speed, wherefore, the three common computational methods： the Stokes＇ law, the apparent viscosity computation method and the Newton-Rittiger formula were compareed. And through the example confirmation,the Newton-Rittiger＇ formula is the most correct one to calculate the tripping ball drop speed was determined.

关 键 词：筛管悬挂器 憋压球 沉降末速 

分 类 号：TE257.9[石油与天然气工程—油气井工程]