Patent ID: 7677335

Claim:
A system for radial and level drilling and completion with an ultra-short radius, comprising: a deflecting drill tool assembly comprised of; a first type tail tube; a directional follow-up tube having a first end connected with said first type tail tube and a second end; a deflecting rotary assembly connected to the second end of said directional follow-up tube; said deflecting rotary assembly having a casing receiving a shaft that is rotationally supported in said casing and a drill head supported on said shaft, and said shaft being supported in a deflected fashion as to have a central axis at an angle deflected from the central axis of said casing for deflected angle drilling; a flexible drill pipe that is received in said follow-up tube and is in driving engagement with said shaft; an upstream nipple joint in driving engagement with said flexible drill pipe; a level drilling assembly comprised of, a second type tail tube; said directional follow-up tube, with the first end of said directional follow-up tube connected with the second type tail tube when operating in a level drilling assembly mode, a combination left hand thread coupling assembly and adjusting nipple joint device which combination is placed in a driving connection line between said upstream nipple joint and said flexible drill pipe when operating in a level drill assembly mode, a level rotary assembly having a level drilling casing which receives a rotary supported level drilling shaft and a level drilling drill head with a central axis of elongation of the level drilling shaft being generally aligned with the central axis of elongation of the level drilling casing, and a quick coupling that is positioned, relative to a driving connection line, between said flexible drill pipe when operating in the level drilling assembly mode and said level drilling shaft.