Autoreaming systems and methods

Details Autoreaming systems and methods Autoreaming systems and methods

2006-08-31

2008-09-09

Bates, Zakiya W. (Department: 3676)

Boring or penetrating the earth

Automatic control

Of boring means including a below-ground drive prime mover

C175S040000, C175S045000, C175S053000

Reexamination Certificate

active

07422076

ABSTRACT:
Methods and systems for controlling movement of a bit of a drilling assembly during reaming of an already-drilled hole; the methods, in certain aspects, including determining a ream speed for downward movement of the bit in the hole, moving the bit downward in a hole at the ream speed, determining a time period for deceleration of the bit to the hole bottom, determining a value for a target drilling parameter for drilling beyond the bottom of the hole, decelerating the bit (linearly or non-linearly) for the time period, and achieving the value for the target drilling parameter when the bit reaches the bottom of the hole.

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