MOBILE REPAIR AND DRILLING RIG Russian patent published in 2001 - IPC

FIELD: deep well drilling, particularly, mobile repair and drilling rig used in repairs of oil and gas wells. SUBSTANCE: mobile repair and drilling rig includes self-propelled transport base, for instance, truck whose platform carries mounted mast with block and tackle system, drawworks, mechanical drive of main mechanisms, hydraulic drive of auxiliary mechanisms, front and rear hydraulic outriggers. Characteristic feature of rig consists in that it is equipped with additional regulating platform mounted on transport base, secured to rear outriggers and is comprised of two parts movably interconnected and located one above the other. In this case, upper part of additional platform is connected with rear outriggers and rests on rollers mounted on lower part on axles parallel to longitudinal axis of rig for limited motion across this axle with the help of hydraulic cylinders driven by rig hydraulic drive. Such solution provides for simplified adjustment of rig in its installation on well. EFFECT: higher efficiency. 6 dwg