Wells – Processes – Cementing – plugging or consolidating
Reexamination Certificate
2007-11-06
2007-11-06
Bates, Zakiya W. (Department: 3676)
Wells
Processes
Cementing, plugging or consolidating
Reexamination Certificate
active
10966937
ABSTRACT:
A method of servicing a wellbore that penetrates a subterranean formation includes displacing a cement composition comprising an aromatic sulfonated polymer into the wellbore and allowing the cement composition to set. In an embodiment, a transition time of the cement composition is less than or equal to about 60 minutes, alternatively less than or equal to about 50 minutes, less than or equal to about 40 minutes, less than or equal to about 30 minutes, less than or equal to about 20 minutes, or less than or equal to about 10 minutes. Thus, the transition time may be short enough to inhibit a substantial amount of gas migration into the cement composition before it sets. In yet another embodiment, the cement composition exhibits a viscosity that increases from a value of 35 Bc (Bearden units) to about 100 Bc in about 10 minutes or less when the cement composition sets.
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Fitzgerald Russell M.
Reddy B. Raghava
Santra Ashok K.
Bates Zakiya W.
Conley & Rose, P.C.
Halliburton Energy Service,s Inc.
Roddy Craig W.
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