Research And Implementation Of Drilling Virtual Simulation System

With the development of computer simulation technology, its application is more andmore extensive. Developing simulation system by computer simulation technology to trainworkers has become the focused research field in the oil industry. The simulation technologyapplied in the oilfield mainly includes numerical simulation technology and visual simulationtechnology. The numerical calculation simulation is mainly for establishing the mathematicalmodel and accurate numerical solution, monitoring oil mining data or quantitatively analysethe equipments and then having the machinery manufactured. It focuses on the accuratenumerical calculation to get accurate data. The visual simulation is generating a realisticvirtual environment, with which users can have interactions. In the oilfield, it is mainly aimedat structuring the three-dimensional models of oilfield equipments, simulating the realenvironment as well as the oil drilling technology process. It is focused on the sense of realityin pictures.Based on computer simulation technology, parametric oilfield drilling virtual simulationsystem is created. The motion of virtual equipments is controlled by parameters to simulatethe drilling processes realistically. The development framework of virtual simulation system,which is based on the technologies of numerical simulation and visual one, is proposed. Themathematical models of drilling rig subsystems are analyzed and formed, by which andaccording to the drilling technology script, the motion of virtual equipments is controlled.Furthermore, an algorithm is presented for the real-time simulation of a rope passing throughseveral pulleys using inverse kinematics. We have researched character animation andrealized the control of virtual human's motions in system. Finally, the interaction of thesystem, initializing of the system parameters, displaying and controlling of the drillingprocess, and the realization of parameters in real-time, are achieved.The drilling virtual simulation system this paper described can simulate thethree-dimensional visualization animation of oil drilling processes with the accuratemovement data. This parametric oilfield drilling virtual simulation system used in thetraining for technicians, can not only help them get an intuitive understanding, but alsopresent the technicians the difference of equipment motion parameters caused by the differentparameters of the system.