Well treating compositions containing water superabsorbent...

Details Well treating compositions containing water superabsorbent... Well treating compositions containing water superabsorbent...

2008-01-08

2008-01-08

Suchfield, George (Department: 3676)

Wells

Processes

Chemical inter-reaction of two or more introduced materials

C166S057000, C166S302000, C166S367000, C166S901000, C507S203000, C507S204000, C507S266000, C507S271000, C507S273000, C507S277000, C507S925000, C507S926000

Reexamination Certificate

active

07316275

ABSTRACT:
A well treating composition containing a polysaccharide-based water-superabsorbent material has particularly applicability as a thermal insulating, fracturing or acid stimulation fluid. The water-superabsorbent material is capable of absorbing, at a minimum, its own weight. Particularly effective are biodegradable materials containing guar gum and carrageenan. The composition may further contain a crosslinking agent, brine and/or a viscosifying polymer or a gelling agent. As an oil-based fluid, the crosslinking agent is absorbed onto the water-superabsorbent material and serves to effectively delay crosslinking.

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“Development of Biodegradable Super Absorbent Polymer Mode of Polysaccharides.” Joint Research Program of Technological Development in the Private Sector, Unitika, Ltd.; http://www.rite.or.jp/English/about/tech/abstract/unitika—r15e.html.

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