WELL DRILLING INSTALLATION Russian patent published in 2017 - IPC E21B7/00 

FIELD: mining.

SUBSTANCE: installation includes ground equipment and a downhole drilling tool connected by a flexible continuous pipe in which a downhole drilling tool is connected to the flexible pipe via an emergency release adapter and includes a turbo-drill, a hydraulic submersible impact tool and a rock cutting tool, the shafts of the turbo-drill and the hydraulic submersible impact tool being connected to each other via a hinge adapter with an emergency disconnection unit. The extender is located on the body of the adapter. At the turbo-drill body there is at least one centralizer, and a damper is placed between the turbo-drill and the hydraulic submersible impact tool. The ground equipment includes the first winch for coiling and uncoiling and orderly laying of the flexible pipe, the second winch for providing lifting and auxiliary operations, means for supplying a flushing fluid to the flexible pipe, a wellhead unit, a control device for the installation with a control panel and an oil station, a flight ladder, a device for collecting and discharging the washing liquid, a device for centering the turbo-drill and hydraulic submersible impact tool, and means for conducting lifting operations, which include hydraulic a spider holding tool of a hydraulic submersible impact tool, a turbo-drill and a flexible pipe and the mechanism of their screwing-unscrewing between each other and with the rock-breaking tip. The wellhead unit contains a support with a crown block on which a folding roller is placed to centre the flexible pipe from the first winch and the cable of the second winch. The control unit includes controls for the first winch, the pump and the holder of the flexible pipe, the turbodrill and the hydraulic hammer, and the screwing-unscrewing mechanism. Means for supplying a flushing fluid to the flexible pipe include a flushing pump with a discharge line and a flushing stuffing box, a suction line, a receiving capacity technologically connected to the troughs, collection and preparation vessels for the solution.

EFFECT: increased productivity of the drilling process.

7 cl, 1 dwg