Huey P Olivier

US Patent:

6485063, Nov 26, 2002

Filed:

Aug 10, 1999

Appl. No.:

09/371562

Inventors:

Huey P. Olivier - Broussard LA 70518

International Classification:

F16L 2500

US Classification:

285333, 285331, 285340, 285355

Abstract:

A drill string includes a plurality of tubular members each having a connection with a pin connector and a box connector on adjacent tubular members. The pin connector has an external thread with negative load flanks and positive stab flanks, adapted for threadingly engaging an internal thread second threads with negative load flanks and positive stab flanks on the box connector of the adjacent tubular member. The positive stab flanks have corner radiuses and the negative load flanks have radiuses forming a S-shape. The pin connector has an outer groove for receiving a protuberance on the terminal end of the box member forming locking shoulders. The protuberance and groove have contoured surfaces providing large metal-to-metal contact for preventing the contoured surfaces from sliding during over-torquing and cyclic bending of the drill string. The negative load flanks and locking shoulders lock the connection together. The negative load flanks absorbing the tension and the locking shoulders absorbing the compression on the connection.

US Patent:

6990719, Jan 31, 2006

Filed:

Nov 25, 2002

Appl. No.:

10/303608

Inventors:

Huey P. Olivier - Broussard LA, US

International Classification:

B21D 39/00

US Classification:

29456, 29428

Abstract:

A drill string includes a plurality of tubular members each having a connection with a pin connector and a box connector on adjacent tubular members. The pin connector has an external thread with negative load flanks and positive stab flanks, adapted for threadingly engaging an internal thread second threads with negative load flanks and positive stab flanks on the box connector of the adjacent tubular member. The positive stab flanks have corner radiuses and the negative load flanks have radiuses forming a S-shape. The pin connector has an outer groove for receiving a protuberance on the terminal end of the box member forming locking shoulders. The protuberance and groove have contoured surfaces providing large metal-to-metal contact for preventing the contoured surfaces from sliding during over-torquing and cyclic bending of the drill string. The negative load flanks and locking shoulders lock the connection together. The negative load flanks absorbing the tension and the locking shoulders absorbing the compression on the connection.

US Patent:

60479973, Apr 11, 2000

Filed:

Nov 18, 1997

Appl. No.:

8/972516

Inventors:

Huey P. Olivier - New Iberia LA

Assignee:

Iberia Threading, Inc. - New Iberia LA

International Classification:

F16L 2500

US Classification:

285333

Abstract:

A drill string includes a plurality of tubular members each having a connection with a pin connector and a box connector on adjacent tubular members. The pin connector has an external thread adapted for threadingly engaging an internal thread on the box connector of the adjacent tubular member. The pin connector has an outer groove for receiving a protuberance on the terminal end of the box member. The protuberance and groove have contoured surfaces providing large metal-to-metal contact for preventing the contoured surfaces from sliding during over-torquing and cyclic bending of the drill string.