HOLE TRAJECTORY CONTROL OF S-TYPE THREE TARGET HORIZONTAL WELL IN DU 84 BLOCK GUANPING 12 WELL

Du84 Block Guanping 12 well is one of SAGD testing well,it is a typical three target and seven section horizontal well,and require high control accuracy of hole trajectory,difficulty to operate and not safety. Introduced optical design of wellbore profile,control and measurement of hole trajectory,predict of wellbore parameter,separate direction and drilling parameter,summarized regular of three target horizontal hole trajectory control technology combined with downhole direction drilling technology.Application indicate,three target horizontal well can realize geology requirement of SAGD,it is very useful to the same kind of horizontal well drilling.