ROBOTIC MOBILE COMPLEX FOR REPAIR OF TUBING STRINGS Russian patent published in 2025 - IPC B23P6/00 F16L1/24 B08B9/02 

FIELD: oil industry.

SUBSTANCE: invention relates to oil industry and can be used for repair of tubing. Robotic mobile system for repair of tubing includes a process line for repair of tubing, containing a loading and unloading platform, input control section, cleaning section, coupling flap section, non-destructive inspection section, cutting section, pipe threading line, couplings bloat section, hydraulic testing section, sorting and packing section, control centre. Process line for repair of tubing includes additional sections. Section of cleaning, control and sorting of couplings, implemented in the form of in-series located automatic equipment, which guarantees cleaning and control of thread, external and internal surfaces of coupling and performs marking and sorting of couplings by strength groups. Gaging section includes two mirror-positioned automatic curvilinear control units, which provide control from both ends of the pipe without turning it through 180 degrees. Plugs and marking bloat section consists of automatic modules for applying lubricant to threads of tubing and coupling, automatic devices for supplying plugs and bloat to tubing and coupling, automatic device allowing to control output parameters of tubing and to perform marking on external surface. Incoming control section additionally includes a magnetic control module. Section for cleaning the tubing contains in-series installed automatic installation for cleaning of contaminated tubing, an automatic installation for cleaning the outer and inner surfaces of the tubing, an automatic installation for cleaning the tubing from salt deposits and a single water treatment unit. Section of couplings flap includes technical device for gripping and transfer of couplings in automatic mode to section of cleaning, control and sorting of couplings. Pipe-cutting line comprises two automatic pipe-cutting machines equipped with devices for automatic stop and positioning of tubing, plugs of inner cavity of tubing against ingress of lubricating fluid and chips during threading and automatic brushes with air blowing function for thread cleaning from chips, as well as two automatic test benches for thread control and hardening. Coupling bloat section further comprises an automatic couplings preload installation, which includes a couplings preparation module, made in the form of an automatic accumulator, which allows to ensure the couplings reception and sorting for storage according to strength groups, but not less than one strength group, receiving-feeding device, which guarantees supply of coupling of required group of strength, devices for application of lubricant on thread of couplings, module for preparation of tubing, which is a device for application of lubricant on thread of tubing and module for pre-filling of coupling with torque control. Hydraulic test section additionally includes pipe drying device. Sorting and packing section includes automatic manipulator-stacker, which allows to sort tubing by strength groups, classes and criteria of suitability. Complex additionally includes a process line for application of coatings on the inner surface of the tubing string, which contains a tubing string preparation section, consisting of a module of couplings flap, a module for preheating, thermal degreasing and drying of pipes, a module for abrasive treatment, a module for blowing and surface quality control. Section for coating the inner surface of the tubing includes a module for applying a protective coating and a drying chamber. Complex also includes a control section, a section for preparation and application of coating on the inner surface of couplings, and a section for couplings bloat. Transfer lines provide automatic transfer of tubing between sections and process lines and allow simultaneous repair in complex of tubing with coating and without coating. Components of the complex are integrated into climatic containers corresponding to dimensions of 40-foot, 20-foot and 10-foot containers with the possibility of height adjustment by means of mechanized devices for levelling the complex along the horizon, in case of curvature of the surface of the site.

EFFECT: improved quality of tubing repair, increased corrosion strength of repaired tubing, increased efficiency of operations during tubing repair.

1 cl, 2 dwg