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US 2006/0048971 A1Published application
Welded joints for rotary-vibratory drills having reduced stress
OwnerRaymond Roussyinventor
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OwnerRaymond Roussyinventor
Estimating the term…
A drill string for a rotary-vibratory drill comprises a plurality of drill pipes. Each of the drill pipes has a longitudinal axis and at least one end. A female connector member and a male connector member are between the ends of adjacent said drill pipes, the female connector member having a first portion mating with a first of the adjacent drill pipes and a second portion extending away from the first of the drill pipes. The male connector member has a first portion mating with a second of the adjacent drill pipes and a second portion extending away from the second of the drill pipes, the second portion of the female connector threadedly engaging the second portion of the male connector. One of said each drill pipe and the connectors has a plurality of spaced-apart slots adjacent to the end of the drill pipe and communicating outwardly at the end. The slots are parallel to the longitudinal axis. Each of the connectors is connected to one of the adjacent drill pipes by welding extending about an adjacent said end of the one drill pipe and along the slots.
A drill string for a rotary-vibratory drill comprising a plurality of drill pipes, each of the drill pipes having a longitudinal axis and at least one end;
A drill pipe assembly comprising a drill pipe having a longitudinal axis and an end, and a threaded connector member having a first portion within the drill pipe and a second portion extending away from the drill pipe, at least one of the drill pipe and connector member having a plurality of spaced-apart slots adjacent to the end and communicating outwardly at the end, the slots being parallel to the longitudinal axis, the connector being connected to the drill pipe by welding extending about said end of the drill pipe and along the slots.
A method of connecting a drill pipe for a rotary-vibratory drill to a threaded connector, the drill pipe having a longitudinal axis and an end, the threaded connector member having a first portion mating with the drill pipe and a second portion extending away from the drill pipe, at least one of the connector member and the drill pipe having a plurality of spaced-apart slots adjacent the end of the drill pipe and communicating outwardly at the end, the slots being parallel to the longitudinal axis, the connector being connected to the drill pipe by welding about said end of the drill pipe and along the slots.
A method of connecting a drill pipe for a rotary-vibratory drill to a threaded connector, the drill pipe having a longitudinal axis and an end, the threaded connector member having a first portion mating with the drill pipe and a second portion extending away from the drill pipe, at least one of the connector member and the drill pipe having a plurality of spaced-apart slots adjacent the end of the drill pipe and communicating outwardly at the end, the connector being connected to the drill pipe by first welding the slots adjacent to the end of the drill pipe, peening the welds adjacent to the end of the drill pipe and then welding about said end of the drill pipe and along the slots.
Dependencies are inferred from the claim text.