This exercise took one hour, which is less than the time on a real rig with the same configuration of equipment and well. The values displayed in the simulator (drill pipe pressure, annulus pressure, input and output flow rates) are in good agreement with the experimental data. The coefficients of the model are adjusted on the basis of incomplete experimental data provided by operators of drilling platforms.Īt the end of the article the results of modeling the elimination of gas inflow by a continuous method are presented. Correct work of models in cases of complications makes it possible to work out various methods for their elimination. There is an opportunity specify the complications, the main one of which is gas, oil and water inflow. New elements of the hydrosystem take into account the changing geometry of the well, loss in the bit, characteristics of the fluids including viscoplasticity. There are elements controlling the inflow from the reservoir into the well and simulating the lift of gas along the annulus. PPSC Drilling Hydraulics provides the following but not. It includes elements that correspond to the in-drillstring and annular space. This software allows users to design and optimize the hydraulic system during drilling operations. Based on the principles of creating a common hydraulic model, a set of new elements for well hydraulics was developed. Hydraulic parameters, such as density, viscosity, yield point, rheology models, flow rate and fluid velocity are covered. The model simulates the operation of all parts of the hydraulic drilling system. This model is based on the previously developed quasi-steady model of an incompressible fluid flow. A drilling engineer intends to optimize the bit hydraulics on a well with the following characteristics. The modeling of drilling hydraulics in the simulator system is discussed.
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