Invention Grant
- Patent Title: Feature to eliminate shale packing/shale evacuation channel
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Application No.: US13531007Application Date: 2012-06-22
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Publication No.: US09617794B2Publication Date: 2017-04-11
- Inventor: Bala Durairajan , Rahul Bijai , Sandeep Tammineni , William Moore , Ehren Long
- Applicant: Bala Durairajan , Rahul Bijai , Sandeep Tammineni , William Moore , Ehren Long
- Applicant Address: US TX Houston
- Assignee: SMITH INTERNATIONAL, INC.
- Current Assignee: SMITH INTERNATIONAL, INC.
- Current Assignee Address: US TX Houston
- Main IPC: E21B10/60
- IPC: E21B10/60 ; E21B10/43

Abstract:
A drill bit having a bit body with a longitudinal axis extending therethrough and a plurality of blades extending from the bit body is disclosed. Each blade has an outer face and at least one side wall. The drill bit has at least one junk slot, wherein each junk slot is defined by the bit body surface and the side walls of adjacent blades. At least one nozzle bore is formed in the bit body, wherein each nozzle bore has an intersecting surface between the bit body surface of a junk slot and an inner surface of the nozzle bore. At least one formation evacuation channel extends through the intersecting surface of at least one of the nozzle bores, wherein each formation evacuation channel has a base surface, and wherein the formation evacuation channel extends partially around the circumference of the nozzle bore.
Public/Granted literature
- US20130341101A1 FEATURE TO ELIMINATE SHALE PACKING/SHALE EVACUATION CHANNEL Public/Granted day:2013-12-26
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