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Gary R. McCain Patents |
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Inventor: McCain; Gary R.
Address: Bakersfield, CA
No. of patents: 1
Patents:
| Patent Number |
Title Of Patent |
Date Issued |
| 5445222 |
Whipstock and staged sidetrack mill |
August 29, 1995 |
| A sidetrack mill is provided for drilling through a cased borehole to provide a sidetracked wellbore having a final diameter, the mill comprising: a pilot mill having a tapered cutting surface being, at its largest diameter, between about 50% and about 75% of the final diameter; a se |
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