METHOD FOR DRIVING DEVIATED SECTIONS OF BORE-HOLE

摘要

FIELD: bore-hole drilling technology. SUBSTANCE: according to method, deviation of bore-hole is effected by changing intensity of deviation. Changing intensity of deviation in its turn is obtained by varying length of whipstock arm and/or through changing angle of misalignment by fastening and releasing of one or several hinges with using locking member being kept under control. Method allows for improving accuracy in making deviated sections of bore-hole due to possible multiple changing of whipstock operating radius. EFFECT: higher efficiency. 4 dwgv