Patent ID: 6082459
Filing Date: 2000-07-04
Classification: E21B

Abstract:
A diverter apparatus for use in a pipe string to be lowered in a wellbore, said diverter apparatus comprising:a tubular housing defining a longitudinal central flow passage, said tubular housing having at least one flow port defined therethrough intersecting said longitudinal central flow passage;means for selectively alternating said diverter apparatus between an open position wherein fluid is communicated between said central flow passage and an annulus defined between said tubular housing and a side of said wellbore through said at least one flow port and a closed position wherein communication through said at least one flow port is blocked; andlocking means for locking said diverter apparatus in said closed position to prevent flow through said at least one flow port and to prevent said diverter apparatus from being inadvertently alternated back to said open position.