Borehole sidetrack locator

Details Borehole sidetrack locator Borehole sidetrack locator

1994-04-29

1995-05-16

Neuder, William P.

Wells

Processes

Placing or shifting well part

1661175, E21B 706

Patent

active

054152380

ABSTRACT:
The present invention is an apparatus for guiding a borehole servicing tool string into a sidetrack of a borehole.
In one embodiment, a centralizer displaces a pivotally-mounted housing towards the sidetrack. A rounded nose on the bottom of the housing enables free passage of the housing into the sidetrack.
In an alternative embodiment, a rounded nose is attached to a hinge at the bottom of the housing, and the tool housing is rotatably mounted to the tool string. The nose is displaced axially about the hinge, and the housing is rotated until the nose is aligned with the sidetrack as indicated by an orientation measuring device disposed within the housing.

REFERENCES:
patent: 3828853 (1974-08-01), Neal
Coiled Tubing Handbook, Edited by: Mark E. Teel; Reprinted fronm World Oil, Gulf Publishing Company, 1993.

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