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US 2014/0110181 A1Published application
Methods for designing fixed cutter bits and bits made using such methods
AssigneeSmith International, Inc.
InventorsZhehua Zhang, Jiaqing Yu
Life of this patent
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Abstract
Embodiments disclosed herein relate to a method for analyzing a fixed cutter drill bit, said method including selecting a cutter; selecting an earth formation; simulating drilling performance of the fixed cutter bit having at least once cutter thereon; performing finite element analysis using outputs from the simulating; and outputting stress on the at least one cutter.
Claims20
A method for analyzing a fixed cutter drill bit, said method comprising:
- (a) selecting at least one cutter;
- (b) selecting an earth formation,
- (c) simulating drilling performance of the fixed cutter bit having the at least one cutter thereon;
- (d) performing finite element analysis using outputs from the simulating;
- and
- (e) outputting stress on the at least one cutter.
3 more elements
A method for designing a fixed cutter drill bit, said method comprising:
- (a) selecting bit design parameters;
- (b) selecting an earth formation;
- (e) selecting drilling parameters;
- (d) simulating drilling performance of the fixed cutter bit having at least one cutter thereon;
- (e) performing finite element analysis using outputs from the simulating;
- and
- (f) outputting stress on the at least one cutter.
4 more elements
A drill bit for use in a drilling assembly, comprising:
- a bit body having a rotational axis extending therethrough;
- and
- a plurality of cutting blades extending radially from the rotational axis and extending axially, the plurality of cutting blades comprising cutting elements disposed thereon,
- wherein at least one cutting element is configured to balance force distribution resulting from bit and earth formation interferences based on finite element analysis results.
1 more element
Dependencies are inferred from the claim text.