Research on the calculation method of friction of drilling cuttings on offshore platforms over long distance
In this paper,in view of the problems such as high energy consumption and easy blockage in some working conditions during the field application of the developed cuttings long distance transmission technology,in the absence of field data verification,five kinds of calculations are carried out for the friction of slurry,including the friction theory,OLGA software calculation,FLUENT single-phase flow and multiphase flow calculation,concrete friction calculation and rheological principle calculation,to realize the comparative analysis of different calculation results.The results show that the calculation results of slurry theory method and rheological principle method are close to each other and the values are maximum.The results of single-phase flow and multiphase flow in FLUENT are close and the values are small.The calculation result of the concrete friction calculation method is centered at 25 ℃,and the calculation result of OLGA software is centered at 20 ℃ and 30 ℃,provide theoretical and technical reference for the long distance transmission of cuttings.
Cuttings transfer technologyDrilling mudSlurry pipeline transportFriction calculation
万方数据
维普
