Concentrated suspensions of water soluble polymers

Details Concentrated suspensions of water soluble polymers Concentrated suspensions of water soluble polymers

1989-01-17

1990-04-10

Morris, Theodore

Wells

Processes

Placing fluid into the formation

166275, 252 8515, 252 8554, 523130, 524801, C09K 700, E21B 4316

Patent

active

049151746

ABSTRACT:
The invention provides concentrated suspensions of high molecular weight water soluble polymers comprising a high molecular weight water soluble polymer, a nonpolymer solvating organic diluent, a swelling agent and a low molecular weight polymer adjuvant, soluble in water and having functional carboxylic acid (or salt) groups thereon and methods for preparing same and the use thereof in the preparation of dilute aqueous thickening solutions suitable for use in various industrial applications, including the petroleum industry and, in particular, the secondary recovery of petroleum from underground well deposits in oil fields.

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patent: 4454260 (1984-06-01), Dawans

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