CASING WINDOW SIDETRACKING TECHNOLOGY IN TARIM KS101 ULTRADEEP WELL

Casing window sidetracking drilling can resume old well productivity,gain a remarkable economic benefit.It is base upon general casing cutting windows,aiming at bad feasibility stratum,through optimizing design sidetracking technology,changing tool,optimizing measure and choosing bit,we succeed in casing window sidetracking of ultradeep well KS101C.The well path control and drilling fluid technology good experience is introduced,It can use for reference to similar well.