FIELD: oil industry.
SUBSTANCE: invention relates to gantry cranes for use on an oil well. The gantry crane contains a crane beam suspended above a working site on an installation for drilling oil wells by means of a lifting structure that provides for lifting and lowering of the crane beam as needed. The gantry crane and the lifting structure can be installed on rails, which allows a gantry crane system to move from one place to another along rails to maintain a set of places on the drilling installation.
EFFECT: improvement of the gantry crane for mounting drilling installations, dismounting drilling installations and lowering-lifting pipes is achieved.
20 cl, 12 dwg
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