Method and apparatus for determining path orientation of a passa

Details Method and apparatus for determining path orientation of a passa Method and apparatus for determining path orientation of a passa

1991-06-03

1993-03-16

Britts, Ramon S.

Boring or penetrating the earth

With signaling, indicating, testing or measuring

Tool position direction or inclination measuring or...

175 61, 73151, 367 82, E21B 704, E21B 4712

Patent

active

051936283

ABSTRACT:
A method and apparatus are disclosed for determining the position of a centerline of a passageway by using a measuring instrument which passes through the passageway taking periodic and successive axial strain measurements which are in turn used to form an interconnected series of circular arc segments representing the centerline.

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"Smith and Horizontal Drilling", Smith International, Houston, Tex.
"Directional Crossing Systems", Smith International, Houston, Tex.

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