Inventor
ODELL ALBERT
US3 patents
Patents
3 patentsUS5857531AJan 12, 1999
Bottom hole assembly for directional drilling
HALLIBURTON ENERGY SERV INC141 citations94
US6543532B2Apr 8, 2003
Electrical surface activated downhole circulating sub
HALLIBURTON ENERGY SERV INC26 citations91
US6349763B1Feb 26, 2002
Electrical surface activated downhole circulating sub
HALLIBURTON ENERGY SERV INC26 citations91