Patent ID: 7249629

Claim:
A mobile well servicing vehicle adapted to conduct the steps of logging and swabbing of a pre-drilled well and in addition insertion of jointed, but not continuous, pipe into said well, including the step of perforating the well by conveying an explosive charge to a lowermost extremity of the well via said inserted jointed pipe, comprising: elongate mast means, having a top end and a bottom end, pivotably coupled to said vehicle proximate said bottom end thereof, pivotable from a first substantially horizontal position to a second substantially vertical position; engine means, for providing motive force for said vehicle via a transmission means; hydraulic pump means coupled to said engine means, said engine means providing operative power to said hydraulic pump means; a hydraulic piston member for raising said mast means from said first position to said second position; hydraulically-operated telescoping levelling members situate respectively at four substantially mutually opposite side corners of said vehicle; a first hydraulically-powered winch means, situate proximate said top end of said mast means, for raising and lowering, via a cable member, a hydraulically-operated grappling means suspended via said cable member from said mast means, said grappling means adapted to grasp and manipulate said jointed pipe; second hydraulically-powered winch means, situate on a bed of said vehicle, having cable means one end of which is wound thereon and another end thereof extending from said mast means, adapted to lower said jointed pipe via said cable means into said well; and third hydraulically-powered winch means, situate on said bed of said vehicle, having electrically conductive wire line means wound thereon, for lowering a well-logging device and a well swabbing means via said wire line means into said well; wherein said hydraulic pump means supplies all necessary hydraulic power to each of said telescoping member, said hydraulic piston member, said hydraulic grasping means, and each of said first, second, and third hydraulically-powered winch means.