Whipstock

Details Whipstock Whipstock

1991-05-07

1992-05-19

Britts, Ramon S.

Wells

Means for guiding insertable element laterally of well axis

Secured in operative position by movable means engaging well...

166 50, 166134, 166250, E21

Patent

active

051139383

ABSTRACT:
A well tool includes a whipstock in conjunction with an inflatable packer for use in the open hole. A pivotal joint between the whipstock and packer allows the whipstock to pivot relative to the packer and springs bias the whipstock into an angled relation relative to the packer. A setting tool connects the whipstock and packer in a rigid straight line position while the tool is being run into the hole. Drilling fluid can be circulated through the tool. When the packer is set and the setting tool is removed, the whipstock pivots relative to the packer against the side of the open hole. This allows the hole to be sidetracked from the low side of the hole.

REFERENCES:
patent: 3908759 (1975-09-01), Cagle et al.
patent: 4153109 (1979-05-01), Szescila
patent: 4304299 (1981-12-01), Holland et al.
patent: 4307780 (1981-12-01), Curington
patent: 4397355 (1983-08-01), McLamore
patent: 4402551 (1983-09-01), Wood et al.
patent: 4606410 (1986-08-01), Becker et al.
patent: 4765404 (1988-08-01), Bailey et al.

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