PRACTICE OF DEEP HOLE CEMENTING TECHNOLOGY IN WELL LINGSHE2

Lingshen 2 well is a exploration well of Tuha Oilfield,with bottom dept at 5230m.High temperature,long segment cementing technology has been introduced systematically in this paper.The key technologies are including the design of casing string,the position of centralizer,the design of slurry density and displacement flow rate,the optimization of slurry system.A case study for LingShen2 is presented in this paper which demonstrates the prospect of this work.