The invention discloses a multifunctional full-automatic
coiled tubing drilling rig, which comprises a main vehicle unit and an auxiliary vehicle unit, wherein the main vehicle unit comprises a vehicular
chassis, a vehicular power
system, a combination type derrick
system and a main vehicle vehicular operation and
control system; the auxiliary vehicle unit comprises a semi-mounted vehicular
chassis, a
drill pipe racking and moving
system tubing
racking part, a
coiled tubing discharging and injecting system and an auxiliary vehicle vehicular operation and
control system; the combination type derrick system comprises a drilling rig platform, a
drill floor supporting leg, a main bracket, an auxiliary bracket, a derrick amplitude varying and posture adjusting system, a well head tubular column
fastener processing system, a well head protecting system, a
pinion-and-rack hoisting system, a
coiled tubing injecting system and a
drill pipe racking and moving system tubing moving part; the main vehicle unit can independently complete conventional single
drill pipe drilling, super single
drill pipe drilling and slant and vertical
well drilling work; the auxiliary vehicle unit is combined with the main vehicle unit to be capable of completing a coiled tubing drilling work; the main vehicle unit cooperates with the auxiliary vehicle unit to realize single
drill pipe drilling, slant and vertical
well drilling and coiled tubing drilling work.