Paper: Recent Developments In Tools For Liner Movement During Cementation

Many papers have emphasized the problems of obtaining efficient mud displacement by cement, causing channels, annular gas flow and other problems. Mud displacement in liner cementing is more difficult than in full-string cementing because of several factors. Some suggestions for obtaining better results in liner cementing through, the use of newly-developed rotation equipment are presented in this paper. Tools designed for these types of jobs are shown and recommended procedures given.