| The mast of petroleum drill rig is an important part of production equipment of petroleum industry。It is a large bearing structure and plays an important role in the oilfield production。Currently, the main types of middle and deep drilling mast are :many sections two-chip style,Integral lifting style,front open style, those masts have the advantages of wider vision,Large working area of drill floor,good stability,but large lifting radius,large Lifting torque,poor lifting safety and occupy too much well-site location when installation。Based on the analysis of the structure of the existing masts at home and abroad,and combines many years experience in mast production,and takes the use of design methods,finite element analysis and steel structural theories, a new Telescopic K type structure mast of 5000 m drill rig is designed, which possesses the advantages of adaptable function,balance structural,reasonable material,easy operation,Safe and reliable subdivision, butt-to-butt joint。taking use of finite element analysis software ANSYS to establish the three-dimensional geometrical space model of derrick and taking the finite element static analysis for several working condition of mast, such as no wind load,wind load ,etc, to Get the overall displacement figure and stress distribution figure. On the basis of the overall analysis of these results, optimize the mast structure design and material chosen。Try the best to achieve the purpose of designing a safety ,reliable, economic mast。... |
