Study and Improvement on Data Failure Rate of Submarine Pipeline Magnetic Flux Leakage Pig
To solve the problem of high data failure rate of submarine pipeline magnetic flux leakage(MFL)pig,three methods of investigation and analysis,test and measurement and field test,combined with correlation diagram,are used to find out the three most influential factors:wear through of the probe protective shell,non-coaxiality of pig during receiving and loading,and magnetic attraction between MFL pig and launcher or receiver.In view of the above factors,the improvement measures of using zirconia protective shell and making MFL pig receiving and loading tools are put forward.The field test conducted in pipeline simulation test field show that they have high practical value.
magnetic flux leakage(MFL)pigdata failure ratesubmarine pipeline magnetic flux leakage testing
NETL
NSTL
万方数据
