Wells – With electrical means – Indicating
Reexamination Certificate
2008-01-29
2008-01-29
Chilcot, Richard (Department: 3635)
Wells
With electrical means
Indicating
C166S077510, C166S077530, C166S085100, C166S085500, C175S040000, C175S085000, C175S113000, C175S162000, C414S022650, C414S022680, C414S022710
Reexamination Certificate
active
10893160
ABSTRACT:
An operational system and method and improved apparatus for positioning and stabbing well tubulars wherein: the grasping members of the apparatus can be folded and unfolded; the boom assembly can be pivoted to a downward clearance position; a plurality of stabbing apparatuses can be placed and used in a stacked position in the derrick; the grasping members can opened at an angle with respect the boom; the grasping members can be mounted on either lateral side of the boom; a sensor monitors the relative position of the rig top drive with respect to the stabbing apparatus; the grasping members and/or the boom will automatically pivot to a breakaway position if impacted; and/or the system is programmed and configured to prevent the accidental performance of critical operations out of sequence.
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Begnaud Brian D.
Huval Jebb L.
Schmidt Stefan
Webre Charles Michael
Wiggins Richard J.
Brown Dennis D.
Chilcot Richard
Fellers Snider Blankenship Bailey & Tippens, P.C.
Frank's Casing Crew & Rental Tools, Inc.
Smith Matthew J.
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