Cementing manifold assembly

Wells – Processes – Cementing – plugging or consolidating

Reexamination Certificate

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Details

C166S075150, C166S177500

Reexamination Certificate

active

06904970

ABSTRACT:
A cementing manifold is disclosed that preferably includes: modular housings that can be stacked together and interconnected to add multi-dart or multi-sphere capability; identical, interchangeable valves; internal bypass capability; a minimum number of protrusions into the pressure containing components; and no externally mounted welded or threaded components.A cementing swivel is also disclosed that preferably includes connections that are formed integrally to the housing, redundant cement connections, angled cement ports, and seal assemblies that do not require individual placement of each seal.

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Nodeco TDH'Top Drive Cementing Head; Nodeco; Revised Dec. 15, 1995 08:02; (pp. 1).
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UK Search Report for Appln. No. GB 0217887.9 dated Nov. 6, 2002; (pp. 3).

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