摘要
在小眼井和连续油管作业的窄环空中，要求更加准确地计算摩擦压降。影响窄环空中摩擦压降的关键因素为环空尺寸的变化、钻柱的旋转和振动。本文介绍偏心度为井深函数的实际环空中压降计算的理论模型和便于现场使用的简化计算方法。
More accurate calculation of pressure loss in narrow annuli of slim holes and coiled tubing operations is required. The key factors affecting frictional pressure loss in narrow annuli are changing annular dimensions, rotation and vibration of drill strings. This paper presents a theoretical model for realistic annular pressure loss calculation in which the eccentricity is a function of the well depth and a simplified method for field calculations.
出处
《钻采工艺》
CAS
1998年第5期9-12,共4页
Drilling & Production Technology
关键词
压降计算
小眼井钻井
连续油管
油田
:pressure drop calculation, realistic annulus, eccentricity, slim hole drilling, coiled tubing
