DRILLING RIG INSTALLED ON SEA BOTTOM AND DESIGNED FOR DRILLING OF OIL AND GAS WELLS

摘要

FIELD: oil and gas production.;SUBSTANCE: invention is related to drilling of oil and gas wells on sea bottom, namely, to drilling rigs. Drilling rig is installed on sea bottom for drilling of oil and gas wells and is controlled remotely from surface vessel along pipes and signal cables. Main design of drilling rig is arranged from two cylindrical structures, with which several hoppers are connected for storage of drill tube racks. The whole drilling module may be lowered and extracted through hatch in upper part of the first cylindrical structure. Drilling rig is installed on foundation frame by means of hydraulic stands. Besides, installation is equipped with cylindrical skirt made with the possibility of adhesion with response cylindrical structure on foundation frame. Cylindrical skirt surrounds anti-emission preventer for prevention of environment pollution.;EFFECT: reduced labour intensiveness for transportation and maintenance of drilling rig during operation.;4 cl, 5 dwg