DRILLING DEVICE CONTROL SYSTEM FOR THE HARD-TO-REACH HYDROCARBON RESERVES DEVELOPMENT Russian patent published in 2019 - IPC E21B7/08 

FIELD: soil or rocks drilling.

SUBSTANCE: invention relates to the drilling equipment and can be used during the wells drilling, namely directional wells with a long horizontal section, in particular, for the hard-to-reach hydrocarbon reserves development. Drilling device control system includes having the axis housing, located in the housing with possibility of rotation shaft, consisting of connected by the hinge the drive and the driven shafts, on the driven shaft the radial-thrust bearing is installed with possibility of keeping its collinear with the housing axis, an actuating member and the mechanism movement installed with possibility of the shaft deviation from the housing axis. System is additionally equipped with rigidly connected to the housing centralizer, placed in the housing electronic module with the electric circuit and rotating contact device, connected to the electronic module through the electric circuit. Shaft is equipped with the second hinge, between the drive and the driven shafts forming the intermediate shaft. Hinges are operating in the oil bath. Driven shaft is equipped with mounted near the housing end face the second radial-thrust bearing. Actuating member contains three wedges and three inductive displacement sensors, the actuating member movement mechanism is made in the form of three electric motors with located at an angle of 120 degrees relative to each other planetary gears. To each electric motor corresponds a wedge, mounted with possibility of movement in both directions with the provision of shaft deviation from the housing axis. On each wedge an inductive displacement sensor is installed.

EFFECT: enabling increase in the drilling device control system reliability, increase in the bit positioning accuracy for the well conducting along the predetermined path.

1 cl, 4 dwg