Degradable polymers for wellbore fluids and processes

Earth boring – well treating – and oil field chemistry – Well treating – Contains organic component

Reexamination Certificate

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C507S117000, C166S308100

Reexamination Certificate

active

07858561

ABSTRACT:
A viscosifying agent for wellbore fluids is described including a polymer polymerized using at least two pre-polymers “A” and “B”, the polymer being capable of essentially fully degrading into soluble fragments after the initiation of a breaking process.

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