Deli Gao1,2, Lianzhong Sun1,3, Hongshu Wei4, Shunwen Wang4
CMES-Computer Modeling in Engineering & Sciences, Vol.89, No.2, pp. 143-162, 2012, DOI:10.3970/cmes.2012.089.143
Abstract Due to the complexity of forces acting on the down-hole tubular strings in extended
reach drilling (ERD), the factors which influence the process should be taken into
account as much as possible, in order to predict the down-hole drag & torque more
accurately. This can help us to identify and prevent the problems related to downhole drag & torque in ERD. The effects of such factors, as the tubular buckling, the
buoyancy, the mechanical resistance and the friction reducer, on down-hole drag &
torque, are taken into account in this paper, in order to improve the accuracy of the
prediction… More >
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