Boring or penetrating the earth – Processes
Reexamination Certificate
2007-10-23
2007-10-23
Gay, Jennifer H (Department: 3672)
Boring or penetrating the earth
Processes
C175S040000, C703S006000, C703S010000
Reexamination Certificate
active
10192833
ABSTRACT:
A method for drilling a borehole through a production zone underlying an overburden of various earth formations includes drilling the borehole through the overburden with a first drill bit. The first drill bit being selected to optimize at least one drilling performance parameter. The method further includes drilling the borehole through at least part of the production zone with a second drill bit. The second drill bit being selected to optimize at least one production performance parameter. Methods for selecting parameters to optimize production performance are also disclosed.
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Gay Jennifer H
Osha & Liang LLP
Smith International Inc.
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