Patent ID: 6041874
Filing Date: 2000-03-28
Classification: E21B

Abstract:
A tubular actuator component for use in a drill-string, the component including a tubular body, and a clutch mechanism mounted in said tubular body and which is operable under fluid pressure action between an inoperative position and an operative position to actuate a drill-string related component, said mechanism comprising:a first clutch member which is secured to said tubular body;a second clutch member axially spaced from said first clutch member and also secured to said tubular body; andan intermediate clutch member which is rotatably mounted in said tubular body and which is axially displaceable, upon application of fluid actuating pressure to the interior of the tubular component, between positions of co-operative engagement with one or the other of said first and second clutch members, thereby to actuate a drill-string related component when the latter is coupled with said tubular actuator component.