Wells – Means for guiding insertable element laterally of well axis – Secured in operative position by movable means engaging well...
Patent
1995-03-23
1996-08-13
Dang, Hoang C.
Wells
Means for guiding insertable element laterally of well axis
Secured in operative position by movable means engaging well...
175 80, E21B 708
Patent
active
055447040
ABSTRACT:
A whipstock for use in sidetrack drilling operations in a well bore. The whipstock has a whipstock case with a whipstock body disposed therein. The whipstock is to be comprised of a drillable material so that after the whipstock has been set, the well bore can be re-opened simply by drilling through the whipstock. The whipstock body is preferably comprised of high compressive strength cement. The whipstock: also includes an offset mandrel attached to the whipstock: case. The whipstock mandrel has a whipstock bore and may have an inflation packer attached to a lower end thereof. The inflation packer is actuated through the whipstock bore to seal against the well bore and anchor the whipstock in place.
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Heathman James F.
Laurel David F.
Marcel Kenneth P.
Christian Stephen R.
Dang Hoang C.
Halliburton Company
Rahhal Anthony L.
Roddy Craig W.
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