In this paper,the window type fishing cylinder used for small falling objects is improved in the current workover operation of the oilfield.By adding tungsten steel tooth head,detachable collar and other functional components on the fishing cylinder body,the purpose of more efficient fishing and collection of small pieces and scattered falling objects in the well is achieved.The original window type fishing cylinder is improved because of the window shape and the material of the tool itself,which leads to the problem of the low fishing effect and high fishing cost.The detachable closed window type fishing cylinder has the characteristics of reusability,which solves the problem that the deposition solves the problem that the deposition in the barrel is not easy to remove after the existing fishing cylinder fishing operation,which leads to the fishing cylinder becoming a disposable tool,and then increases the production cost.It has important practical application value for reducing cost and increasing efficiency in the workover fishing operation of the oilfield.
workover fishingfishing cylinderdetachableclosed window type
维普
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