Wells – Means for guiding insertable element laterally of well axis – Secured in operative position by movable means engaging well...
Patent
1995-04-11
1995-11-21
Buiz, Michael Powell
Wells
Means for guiding insertable element laterally of well axis
Secured in operative position by movable means engaging well...
E21B 2300
Patent
active
054678200
ABSTRACT:
An oil field Wellbore Deviation Apparatus, for deviating a wellbore, which uses an improved whipstock incorporating a new setting apparatus and method, attached to a hydraulic or mechanical anchor packer is disclosed. The new apparatus reduces the number of whipstock bodies that must be warehoused to three fundamental types which fit all commonly used wellbores. The apparatus permits the proper "set" of a mechanical packer without fear of shearing the releasable attachment device currently used in the industry and permits an operator to "bottom hole wash" while setting a mechanical packer in a wellbore. The same apparatus is used for both mechanical or hydraulic packers. The system utilizes a slot cut in the face of the whipstock for setting. Other improvements include a pinned spring loaded hinge assembly which assures that the tip of the whipstock will fall against the wellbore, a hardened deflector plate, that can use polycrystaline diamond inserts, to reduce wear on the top portion of the device during the window milling operation, and the apparatus is retrievable.
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Alworth C. W.
Buiz Michael Powell
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