METHODS AND COMPUTER-READABLE MEDIA FOR DETERMINING DESIGN PARAMETERS TO PREVENT TUBING BUCKLING IN DEVIATED WELLBORES

摘要

Methods and computer-readable media are provided for determining designparameters for oil well casing and tubing to prevent buckling in deviatedwellbores. Well parameter data including tubing size, tubing weight, welldepth, and well geometry is obtained and may be utilized to calculateparameters for predicting the movement of tubing near a packer or centralizerin the deviated wellbore based on the received well parameter data, predictinga total bending moment near the packer or centralizer, predicting a maximumbending stress near the packer or centralizer based on the total bendingmoment, and predicting the minimum axial force necessary to initiate bucklingdue to friction, and predicting the onset of buckling for the connection oftubing of different sizes. After the parameters have been calculated, they maybe utilized in the design of the oil well casing and tubing to preventbuckling in the deviated wellbore.