Research on application of protection technique to casing wear

High friction usually result in difficulty of running drilling pipe and over limit of top drive and severe wear of workstring and casing in drilling high deviation or long horizontal distance wells.It is difficult for drilling and completion.This article was starting with casing wear mechanism analysis and finding out main reasons of workstring friction increase,comparing with different projects and tools,use of wear pad stabilizer during drilling high deviation well could greatly reduce workstring friction and torque.Through drilling practice,torque was reduced by 10%-30%.Application of wear pad stabilizer brings high drilling effect on reducing casing wear in drilling high deviation or horizontal wells.It will be wide application foreground.