ROTARY WELL DRILLING TOOLS

Brand	Owner (click to sort)	Address	Description
IT'S A KING	KING OIL TOOLS, INC.	2401 WILSON ROAD HUMBLE TX 77338	ROTARY WELL DRILLING TOOLS AND PARTS THEREOF, NAMELY, SWIVELS, CIRCULATING HEADS, WIRE LINE STRIPPERS AND PARTS THEREFOR;IT IS A KING;
IT'S A KING	GEFCO, INC.	6913 Autumn Lake Trail Hixson TN 37343	rotary well drilling tools and parts therefor, namely swivels, circulating heads, wireline strippers, and parts therefor;IT IS A KING;
KING	KING OIL TOOLS, INC.	2401 WILSON ROAD HUMBLE TX 77338	ROTARY WELL DRILLING TOOLS AND PARTS THEREOF, NAMELY, SWIVELS, CIRCULATING HEADS, WIRE LINE STRIPPERS AND PARTS THEREFOR;
	Where the owner name is not linked, that owner no longer owns the brand

Technical Examples

For use in a wellbore containing a rotary drill string and a drill bit, the combination comprising, a rotary mandrel containing a through opening to pass drilling fluid downwardly from the interior of the drill string, and toward the bit, a non-rotary housing extending about the mandrel, a plenum or plenums in the housing in communication with the interior of the mandrel through an opening to receive fluid pressure used to actuate means associated with drilling activity in the well, and a controlled fluid gap proximate the housing, to slowly leak drilling fluid to the annulus outside the string.