METHOD OF CONTROL OVER PROCESS OF DRILLING OF INCLINED- HORIZONTAL HOLES Russian patent published in 2002 - IPC

FIELD: drilling of holes. SUBSTANCE: method includes drilling of shaft of hole by arrangement of drill pipe string made of drill pipes, drill bit, face motor, adapter in which down- hole logging instrument incorporating transmitter is located. Telemetering system is positioned above face motor. Information from transmitter is sent over wireless communication channel into downhole logging instrument and further on to ground surface. Down-hole logging instrument with transmitter is located in adapter between drill bit and shaft of face motor. Transmitter in this case measures speed of rotation of drill bit. Value of axial load is found by mathematical expression. Ultrasonic or any other wireless communication channel is used in the capacity of wireless communication channel. EFFECT: timely generation of information on value of axial load. 1 cl