Method for reducing the viscosity of viscous fluids

Details Method for reducing the viscosity of viscous fluids Method for reducing the viscosity of viscous fluids

2004-09-27

2010-06-29

Choi, Ling-Siu (Department: 1796)

Colloid systems and wetting agents; subcombinations thereof; pro

Compositions containing an agent for breaking ; processes of...

C507S203000

Reexamination Certificate

active

07745500

ABSTRACT:
A viscous fluid, such as heavy crude oil which is too viscous to enable it to be pumped from a flowing phase of a reservoir into and along a pipeline for delivery to a refinery or other storage facility, may be contacted with a formulation to reduce its viscosity. The formulation comprises a polymeric material AA which includes —O— moieties pendent form a polymeric backbone thereof and said material is optionally cross-linked. In one embodiment, the formulation may comprise polyvinyl alcohol. In an alternative embodiment, the formulation may comprise a cross-linked polymeric material, such as cross-linked polyvinyl alcohol. After the viscous composition has been transported to a desired location, it may be separated from the other components.

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