METHOD AND DEVICE FOR DRILLING STRAIGHT-LINE BORE-HOLES

摘要

FIELD: bore-hole drilling technology. SUBSTANCE: according to method, installed in head part of drilling string is automatically operated and controlled guiding and supporting adapter. Used for indication of preset direction of drilling is laser ray. Cleaning agent delivered into hollow drilling string is used in combination with laser ray for control of guiding and supporting adapter during drilling. Aforesaid method and device allow for enhancing accuracy in drilling of straight-line bore-holes by means of hollow drilling string due to application of laser ray. EFFECT: higher efficiency. 12 cl, 8 dwg