| http://www.w3.org/ns/prov#value | - An example of a method of the present invention is a method of treating a subterranean...http://www.google.es/patents/US7475728?utm_source=gb-gplus-sharePatente US7475728 - Treating subterranean formation with treatment fluid containing a base fluid, a viscosifier, a fluid loss control additive, and a degradable bridging agent such as, polysaccharide, a chitin, a chitosan, a protein, a polyester,
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