MOBILE SERVICE CENTRE FOR DOWNHOLE MOTORS, JARRING DEVICES AND ELEMENTS OF DRILL STRINGS Russian patent published in 2011 - IPC B65D88/12 

FIELD: gas-and-oil producing industry.

SUBSTANCE: invention refers to oil engineering, particularly to mobile service centres for hydraulic downhole motors, jarring devices and elements of drill strings designed for their arrangement near rigs in regions difficult to access in Northern latitudes. The mobile service centre for downhole motors, jarring devices and elements of drill strings consists of the first and second transport containers tied with lengthwise sides and equipped with an external cantilever and internal bridge cranes. Inside a room there is arranged a hydraulic wrench for screwing and unscrewing threaded connections of downhole motors, jarring devices and elements of drill strings, a unit for screwing and unscrewing threaded connections of smaller diametre, a service vice, a workbench, a tool cabinet, a pressure washing device, a sump in a floor and also a test bench for jarring devices equipped with a hydraulic cylinder of double-ended action. Before a swinging gate there are arranged support platforms with roller beds. The external cantilever crane is erected on its own support platform. The third transport conveyer is installed between the roller beds. A diagnosis bench for non-destructive check of parts of downhole motors, jarring devices and elements of drill strings is located inside the third transport conveyer. Also, there is installed a bridge crane travelling along whole length of its internal space.

EFFECT: safe placement of long length parts; labour-saving service procedures.

11 cl, 4 dwg