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US 5,050,673 AGranted
Lift through plug container for slant rig
AssigneeHalliburton Company
InventorMorris G. Baldridge
Life of this patent
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AssigneeHalliburton Company
InventorMorris G. Baldridge
Estimating the term…
A system for cementing a casing string in a slant well includes a slant drilling rig including a slanted mast having a pair of spaced rails with an elevator spanning between the rails and reciprocable along a length thereof for reciprocating a casing string with the casing string lying generally between and parallel to the rails. The mast has an open generally upward facing side. A cement plug container apparatus has a cementing manifold and a release plunger assembly attached thereto and positioned about the container relative to each other such that an angle of substantially less than 180.degree., and most preferably approximately 980.degree., is defined therebetween. Thus, the container is substantially free of any radial protrusions outside of that angle and can lie generally flat within the confines of the space between the rails of the tilted mast. The container is of a lift through design having a lifting sub attached to the upper end thereof so that the container and a casing string supported therefrom can be reciprocated within the slant rig so as to reciprocate the casing string while cementing the same in place.
A cement plug container apparatus, comprising:
A system for cementing a casing string in a slant well, comprising:
Dependencies are inferred from the claim text.