Danielle A Roberts

US Patent:

20060213693, Sep 28, 2006

Filed:

Mar 25, 2005

Appl. No.:

11/090932

Inventors:

Anton Zahradnik - Sugarland TX, US
Eric Sullivan - Houston TX, US
R. Smith - Lafayette LA, US
Daniel Ruff - Kingwood TX, US
Danielle Roberts - Spring TX, US
Alan Massey - Houston TX, US

International Classification:

E21B 10/36

US Classification:

175374000, 175435000, 076108200

Abstract:

A shank configuration for rotary drill bits, is disclosed for positioning of the shank in relation to the bit body. A tapered surface or feature of the shank may be configured and sized to matingly engage a complementarily shaped surface or feature of the drill bit body and thereby become centered or positioned in relation thereto. A deformable element may be disposed between the shank and bit body. Also, the shank may comprise a material having a carbon equivalent of less than about 0.35%. A multi-pass weld procedure may be employed to affix the shank and bit body to one another wherein welds may be formed so that one weld originates at a circumferential position that differs from the origination circumferential position of its immediately preceding weld by at least about 90. Further, a stress state may be developed within the multi-pass weld. A method of manufacture is also disclosed.

US Patent:

20150287150, Oct 8, 2015

Filed:

Apr 8, 2015

Appl. No.:

14/681805

Inventors:

- Houston TX, US
Scott F. Donald - Spring TX, US
Robert A. Laing - Montgomery TX, US
Danielle VeLoise Roberts - Montgomery TX, US
Chaitanya K. Vempati - Conroe TX, US

International Classification:

G06Q 50/08
G06Q 10/06

Abstract:

Systems and methods may be used to select a drill bit design for an earth-boring rotary drill bit for use in a particular drilling application. The systems may include a computer server, and a remote device configured to communicate with the computer server through a network. The computer server may include a database including information relating to normalized scores for a plurality of drill bit responses for a plurality of differing drill bit designs. The computer server may receive information from the at least one remote device, to select one or more potential drill bit designs from the at least one database based on the information, and to transmit information relating to the selected one or more potential drill bit designs to the remote device. Such systems may be used in methods of selecting drill bit designs for earth-boring rotary drill bits for use in respective drilling applications.