Systems and methods employing a variable angle guide for a...

Boring or penetrating the earth – Boring a submerged formation – Boring with submersible vertically movable guide

Reexamination Certificate

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Reexamination Certificate

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07905298

ABSTRACT:
Disclosed are systems and methods for drilling in an environment having a fluid and a bed. The method includes positioning a platform such that the fluid is between the platform and the bed; and assembling a guide, the assembled guide being straight. The method subsequently acts to place the guide such that the guide is supported by the platform, and a major length of the guide and a normal to the bed defines an angle, the angle being substantially greater than 0. Thus, the positioned guide allows for sending a variable angle drill inside the guide, from the platform into the bed.

REFERENCES:
patent: 298251 (1884-05-01), Sterling
patent: 920031 (1909-04-01), Cuthbert
patent: 1517556 (1924-12-01), Grant
patent: 3451493 (1969-06-01), Storm
patent: 3650339 (1972-03-01), Selfe et al.
patent: 3874462 (1975-04-01), Harms et al.
patent: 3933108 (1976-01-01), Baugh
patent: 7438502 (2008-10-01), Coppola

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