Use of low- and high-molecular-weight polymers in well treatment

Details Use of low- and high-molecular-weight polymers in well treatment Use of low- and high-molecular-weight polymers in well treatment

1998-12-21

2000-12-05

Cain, Edward J.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Processes of preparing a desired or intentional composition...

523132, 524407, 525194, 525196, C09K 702

Patent

active

061568198

ABSTRACT:
An aqueous polymer composition containing water and hydrophilic polymers and a method for treating subterranean formations with the composition to reduce formation permeability. The hydrophilic polymers are a mixture of high-molecular-weight polymers having a molecular weight of at least about 2,000,000, and low-molecular-weight polymers having a molecular weight of up to about 1,000,000.

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