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对在高斜井或水平井中使用的连续油管(CT)而言, 成功作业的关键参数之一就是其弯曲或遇卡之前的作业深度。获得理想的作业深度对CT来说十分关键,如再有几百英尺的水平钻进就更为重要。本文论述了CT及CT与井眼环空中的液流对CT管的受力及应力状态的影响,从而预测其对CT作业深度的影响
One of the key parameters for successful operation of a coiled tubing (CT) used in a high inclined or horizontal well is the depth of work before it is bent or stuck. Obtaining the ideal depth of work is critical to CT, and drilling more than a few hundred feet is even more important. This paper discusses the influence of CT and CT and wellbore annulus flow on the force and stress state of CT tube to predict its effect on the depth of CT operation