Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2008-09-30
2008-09-30
Bomar, Shane (Department: 3676)
Wells
Processes
Cementing, plugging or consolidating
C166S177400, C166S242800, C166S382000, C175S057000, C175S171000
Reexamination Certificate
active
10297633
ABSTRACT:
A cement float collar is made for pumping downhole and into engagement with a groove formed in the casing, called the profile nipple. As such, no restriction is needed in the casing for accepting or latching the float collar and the portion of casing including the groove can be installed at the start of the drilling operation. In addition, the profile nipple can be used to engage other drilling tools and, therefore, can already be in place when the final well depth (TD) is reached.
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Angman Per G.
Vert Jeffery Walter
Bomar Shane
Bracewell & Giuliani LLP
Tesco Corporation
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