Offshore Fishing String Force Analysis And Tool Optimal Design

Stressstate of accidental well during the salvage process,in this paper,on the basis of previous studies,systematically analyses workover string stress state,and preferably improve the workover string mechanical model,combinatorial optimization design tools,using mechanical calculation model,calculatethe whole string in the salvage construction process,the calculation results can provide theoretical reference for salvage and construction,providessafety construction for the down-hole construction,to reduce the accident and costs.In order to apply the results of this paper into site field better,this paper has programed the model from this paper to be software,with C# as front interface,Microsoft Access and SQL Server as background database.Work out a set of application software system.The system of database storage commonly used all kinds of Marine workover information,according to the wellhole structure and well track,process related mechanical calculation analysis,provide scientific basis and technical guidance for on-site,design module can design tool combination and output statements.This system can be easily applied into workover string analysis,and has been successfully applied in JM25-1C25 JM32-6 owned in the Bohai Sea.