METHOD FOR OPTIMIZING TUBULAR RUNNING OPERATIONS USING MODELLING
개요
발명자
C. John VAN VLIET; Spencer TAUBNER; Victor YUNG
IPC 분류
CPC 분류
A method for optimizing tubular running operations (TROs) on a drilling rig calculates a surface load limit of a running string, using each of one or more selected modelled kinematic conditions as input to torque-and-drag analysis (TDA) in the bottom-up direction to estimate a running string load distribution including an estimated load acting at the top of the running string, and for each selected component of the running string calculating a load buffer, identifying a limiting load buffer from among the calculated load buffers, calculating a surface load buffer based on the limiting load buffer, and calculating the surface load limit based on the surface load buffer. TROs may be optimized by taking steps as necessary to keep actual loads applied to the upper end of the running string within surface load limits. Optionally, TDA in the top-down direction may be iteratively performed to determine revised surface load limits.
원문 (중국어)
A method for optimizing tubular running operations (TROs) on a drilling rig calculates a surface load limit of a running string, using each of one or more selected modelled kinematic conditions as input to torque-and-drag analysis (TDA) in the bottom-up direction to estimate a running string load distribution including an estimated load acting at the top of the running string, and for each selected component of the running string calculating a load buffer, identifying a limiting load buffer from among the calculated load buffers, calculating a surface load buffer based on the limiting load buffer, and calculating the surface load limit based on the surface load buffer. TROs may be optimized by taking steps as necessary to keep actual loads applied to the upper end of the running string within surface load limits. Optionally, TDA in the top-down direction may be iteratively performed to determine revised surface load limits.