Structure Design And Experiment Study Of Torsion Shock

Oil resources are the "lifeblood" of national development,and the exploitation of oil resources is a major event related to the national economy and the people’s livelihood.With the continuous increase of drilling depth in the mine,oil mining faces many problems,such as serious sticky phenomenon,technology lag behind western countries and low mining efficiency,and the most serious sticky phenomenon is the phenomenon of sticky skidding.Through the study of the stick slip mechanism,the mathematical expressions of the frequency of the stick slip vibration,the additional torque and the turntable are obtained.The research shows that providing additional torque,reducing drill string length and reducing rotary speed is the main way to solve the stick slip phenomenon.Because of the geological conditions,the length of the drill string can not be reduced and the rotating speed of the rotating disk has the corresponding standard under different geological conditions.Therefore,it is an effective way to provide an extra torque-torsion shock device to understand the stick slip phenomenon.On the basis of consulting a large number of documents and summarizing the achievements of predecessors,this paper begins with the study of the mechanism of the stick slip phenomenon.First,the structure of the torsion auxiliary impact device is developed.The detailed structural parameters and the design ideas of the torque impact impactor are given by the torsion impactor of the 178 mm outer diameter.In order to verify the rationality of the structure design,the flow field dynamics simulation and the transient dynamic simulation of the key component of the torque impact hammer are carried out in this paper.The internal flow field,the pressure cloud and the outlet pressure in the impact state,the middle state and the changing state are obtained.The results of the force cloud diagram show that the design results of the torque impactor are basically reasonable,stable and able to meet the design requirements.At last,the experiment platform of the torsion impactor was set up to carry out the bench test.The liquid pressure sensor was used to measure the outlet pressure of the torsion impactor,and the experimental results were compared with the simulation results.The experimental results verified the feasibility of the simulation results to demonstrate the feasibility of the torsion impactor.