DRILLING PERFORATOR WITH ELECTRIC HYDRAULIC SYSTEM AND ADJUSTMENT OF DRILL INCLINATION ANGLE Russian patent published in 2012 - IPC E21B43/11 

FIELD: oil and gas production.

SUBSTANCE: drilling perforator comprises a system of perforator fixation to a well wall, a system of perforation, comprising a hydraulic cylinder of perforation, a drill, a curvilinear guide for a drill, a system of drill feed with a hydraulic cylinder of drill feed. The system of perforator fixation to the well wall comprises the second and third hydraulic cylinders, a system of drill inclination angle adjustment comprises a distributor, a hydraulic cylinder and a displacement sensor. Systems of fixation, perforation, drill feed and drill inclination angle adjustment are combined into a single electric hydraulic system with logical control and a controller.

EFFECT: higher reliability of perforator operation, application of a modular design for operation on wells of different diameters, improved automation of fixation and unfixturing, elimination of high accident risk of works, improvement of a perforator.

1 dwg